GCN Circulars Archive

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1. The Latest Circulars
2. Older Circulars
3. Bursts of Special Interest

This is the archive of the GCN Observation Report Circulars.

To learn more about the GCN Circulars and how to subscribe.

Please see the request for comments (RFC) on the discussion of proper content for these Circulars (i.e. Are theory-content Circulars to be allowed). [31 Jan 99]
Also see the addendum to the RFC. [04 Feb 99]
And see the Results of the RFC. [16 Feb 99]

(Listed in reverse serial number order -- newest first)

• 7707 GRB 080507: Swift XRT analysis confirms the X-ray afterglow
  
• 7706 GRB 080507: Keck photometry
  
• 7705 GRB 080507: E Pur Si Muove!
  
• 7704 GRB 080503: Chandra Observation of X-ray Rebrightening or Flattening
  
• 7703 GRB 080503: Hubble Space Telescope Imaging
  
• 7702 GRB080507: Swift/UVOT followup observations
  
• 7701 GRB 080507: Optical Afterglow
  
• 7700 GRB 080506:Optical observations from HCT
  
• 7699 GRB 080507: Swift-XRT position of a possible afterglow
  
• 7698 GRB 080506: VLA radio upper limit
  
• 7697 GRB 080507: GRB localization by SuperAGILE
  
• 7696 GRB 080506: TLS 2nd Epoch - possible light curve break
  
• 7695 GRB 080503: Fading in continued Gemini imaging
  
• 7694 GRB 080506: Swift XRT refined analysis
  
• 7693 GRB080506: Swift/UVOT observations
  
• 7692 GRB 080506, Swift-BAT refined analysis
  
• 7691 GRB080503, RIMOTS optical upper limit
  
• 7690 GRB 080506: Observations from NOT
  
• 7689 GRB 080506: optical observation from Ondrejov
  
• 7688 GRB 080506: TLS afterglow detection in VRIZ
  
• 7687 GRB 080506: Enhanced Swift-XRT position
  
• 7686 GRB 080506: Optical observation with KANATA/TRISPEC
  
• 7685 GRB 080506: Swift detection of a burst with optical afterglow
  
• 7684 GRB 080503: VLA radio upper limit
  
• 7683 GRB 080503: Observations from NOT
  
• 7682 GRB 080503: Slow-rise optical AG ?
  
• 7681 GRB 080430: TLS imaging one day after the GRB
  
• 7680 GRB 080503: No further optical rebrightening
  
• 7679 GRB 080503: Late-time Optical rebrightening (possible mini-SN) - correction
  
• 7678 GRB 080503: Late-time Optical rebrightening (possible mini-SN)
  
• 7677 GRB 080503, Swift-BAT lag and time-resolved spectral analysis
  
• 7676 GRB 080503: MITSuME Ishigakijima optical upper limits
  
• 7675 GRB080503: Swift/UVOT Upper Limits
  
• 7674 GRB080503 XRT refined analysis
  
• 7673 GRB 080503, Swift-BAT refined analysis
  
• 7672 GRB 080430
  
• 7671 GRB 080430
  
• 7670 GRB 080430
  
• 7669 GRB 080503: Enhanced Swift-XRT position
  
• 7668 GRB 080503: MITSuME Akeno optical upper limits
  
• 7667 GRB 080503: New candidate afterglow/host in Gemini imaging
  
• 7666 GRB 080503: Optical afterglow candidate and LRIS spectroscopy of the short burst
  
• 7665 GRB 080503: Swift detection of a short burst
  
• 7664 GRB 080411: Continued Swift Monitoring
  
• 7663 GRB 080430: Optical observations
  
• 7662 GRB 080430: Shallow decay
  
• 7661 GRB080430: RTT150 Optical Observations
  
• 7660 GRB080430: Swift/UVOT observations
  
• 7659 VLA radio upper limit on GRB 080430
  
• 7658 GRB 080430 - multicolor observations of the afterglow
  
• 7657 GRB 080430 optical observations
  
• 7656 GRB 080430, Swift-BAT refined analysis
  
• 7655 GRB080430: optical observations
  
• 7654 GRB 080430: Hobby-Eberly Telescope Absorption Redshift
  
• 7653 GRB 080430: Swift-XRT refined analysis
  
• 7652 GRB 080430: Enhanced Swift-XRT position
  
• 7651 GRB080430: Optical observation in AsU CAS Ondrejov & Brno
  
• 7650 GRB 080430: Spectroscopy from CAHA
  
• 7649 GRB 080430 - SDSS Pre-Burst Observations
  
• 7648 GRB 080430: Bootes observation
  
• 7647 GRB 080430: Swift detection of a burst with optical afterglow
  
• 7646 GRB 080430: TAROT Calern observatory optical observations
  
• 7645 GRB960202B - on the association with SN 1996cr
  
• 7644 GRB080426: Observations from CAHA
  
• 7643 GRB 080426: Swift-XRT refined analysis
  
• 7642 GRB080426: Swift/UVOT upper limits
  
• 7641 GRB 080426: Enhanced Swift-XRT position
  
• 7640 GRB 080426, Swift-BAT refined analysis
  
• 7639 GRB 080426: Swift detection of a possibly short burst
  
• 7638 Possible GRB 080315: XRT non-detection of afterglow
  
• 7637 GRB 080320 : Faulkes Telescope North Observations
  
• 7636 GRB 080319A : Liverpool and Faulkes Telescopes Observations
  
• 7635 GRB080319A: MAGIC telescope GeV observation
  
• 7634 Swift-BAT trigger 309665 is not a GRB
  
• 7633 GRB 080420A: ROTSE-III Optical Limits on a possible short burst
  
• 7632 GRB 080420?: Swift detection of a possible short burst
  
• 7631 GRB080310, BVRcIc field calibration
  
• 7630 GRB 080413A: Suzaku/WAM and Swift/BAT joint spectral analysis
  
• 7629 GRB 080413B: Rapid PROMPT Observations
  
• 7628 Swift XRT and UVOT observations of GRB080414
  
• 7627 GRB 080319B: Jet Break, Energetics, Supernova
  
• 7626 GRB 080413B: Faulkes Telescope South optical afterglow observations
  
• 7625 GRB 080413A: Liverpool Telescope and Faulkes Telescope South optical observations
  
• 7624 GRB 080413A: Suzaku WAM observation of the prompt emission
  
• 7623 GRB 080413B: Suzaku WAM observation of the prompt emission
  
• 7622 GRB 080413A: MOA-II optical afterglow observations
  
• 7621 GRB 080319B: Continued Gemini-N monitoring
  
• 7620 GRB 080414: RTT150 optical observations
  
• 7619 GRB 080414 Watcher observations
  
• 7618 GRB 080414: A long GRB detected by INTEGRAL
  
• 7617 VLA radio observations of GRB 080413B
  
• 7616 GRB 080413A: Gemini-South Spectroscopy
  
• 7615 GRB 080413B: Gemini-South Spectroscopy
  
• 7614 VLA radio observations of GRB 080413A
  
• 7613 IBAS Alert n. 5257 : not a GRB
  
• 7612 GRB 080413B: Ep,i-Eiso correlation
  
• 7611 GRB080413B
  
• 7610 Swift-BAT spectral lag analysis of GRB 080413B
  
• 7609 GRB 080413a, SMARTS optical/IR afterglow observations
  
• 7608 GRB 080413B: Swift XRT refined analysis
  
• 7607 GRB080413A: Swift/UVOT observations
  
• 7606 GRB 080413B, Swift-BAT refined analysis
  
• 7605 GRB 080413A: Swift-XRT refined analysis
  
• 7604 GRB 080413A, Swift-BAT refined analysis
  
• 7603 GRB 080413A Bootes observation
  
• 7602 GRB 080413A: VLT/UVES redshift
  
• 7601 GRB 080413B: VLT redshift
  
• 7600 GRB080413B: REM NIR & Optical Observation
  
• 7599 GRB 080413B: GROND detection of afterglow in all bands
  
• 7598 GRB 080413B: Swift detection of a possibly short burst with optical counterpart
  
• 7597 GRB 080413A: REM detection of the NIR Afterglow
  
• 7596 GRB 080413: Enhanced Swift-XRT position
  
• 7595 GRB 080413: TAROT Calern observatory optical observations
  
• 7594 GRB 080413: Swift detection of a burst with an optical afterglow
  
• 7593 GRB 080413: ROTSE-III Detection of Optical Counterpart
  
• 7592 GRB 080411: Swift/UVOT refined analysis
  
• 7591 GRB 080411, Swift-BAT refined analysis
  
• 7590 GRB 080411: Swift-XRT Refined Analysis
  
• 7589 Konus-Wind observation of GRB 080411
  
• 7588 GRB 080411: Enhanced Swift-XRT position
  
• 7587 GRB 080411: VLT redshift
  
• 7586 GRB 080411: GROND detection of optical afterglow candidate
  
• 7585 GRB080330: MAGIC telescope GeV observation
  
• 7584 GRB 080411: Swift detection of a bright burst
  
• 7583 GRB 080330: Swift-XRT refined position retraction
  
• 7582 GRB 080409: Swift-BAT refined analysis
  
• 7581 GRB 080408: GROND detection of optical/NIR afterglow candidate
  
• 7580 GRB 080330 optical observations
  
• 7579 Swift/UVOT observations of GRB080409
  
• 7578 GRB 080409: Swift XRT refined analysis
  
• 7577 UVOT/Swift Observations of GRB080408
  
• 7576 GRB 080408: Swift-XRT position of a possible afterglow
  
• 7575 GRB 080409: Enhanced Swift-XRT position
  
• 7574 GRB 080409: REM optical/NIR observations
  
• 7573 GRB 080409: Swift detection of a burst
  
• 7572 GRB 080408: Analysis of AGILE Gamma-ray data
  
• 7571 GRB 080408: GRB Localization by SuperAGILE
  
• 7570 GRB 080319A: Early RAPTOR optical limits
  
• 7569 GRB 080319B: HST observations
  
• 7568 GRB 080330: RAPTOR detection of prompt optical flash
  
• 7567 GRB 080319B: Potential Jet Break Observed by Swift-XRT and UVOT
  
• 7566 GRB 080405: Swift-BAT refined analysis
  
• 7565 GRB 080405: Swift-XRT position
  
• 7564 GRB 080405: Mars Oddysey and Swift-BAT detection, possible host galaxy
  
• 7563 GRB 080325: optical upper limit
  
• 7562 GRB 080328: GAO 150cm telescope Optical Observation
  
• 7561 GRB080330: Improved Swift XRT Position
  
• 7560 GRB 080330: Prompt PROMPT Observations
  
• 7559 GRB080330: optical observations
  
• 7558 GRB 080319B: TORTORA light curve (Correction)
  
• 7557 GRB080328, RIMOTS optical upper limit
  
• 7556 GRB080330: optical observations
  
• 7555 GRB080330: Swift XRT refined analysis
  
• 7554 GRB 080330: REM optical observations
  
• 7553 GRB 080330, SMARTS optical/IR afterglow observations
  
• 7552 GRB 080330 Swift-UVOT refined analysis
  
• 7551 GRB 080328: Suzaku WAM observation of the prompt emission
  
• 7550 GRB080330: TNT optical observations
  
• 7549 GRB 080330, Swift-BAT refined analysis
  
• 7548 Konus-Wind observation of GRB 080328
  
• 7547 GRB 080330: Redshift Confirmation from Hobby-Eberly Telescope Spectroscopy
  
• 7546 GRB080330: LOAO R-band Detection
  
• 7545 GRB 080330: GROND Observations
  
• 7544 GRB 080330: NOT redshift
  
• 7543 GRB 080330: TAROT Calern observatory optical observations
  
• 7542 GRB 080330A: PAIRITEL Infrared Detections
  
• 7541 GRB 080330: error in reported XRT position
  
• 7540 GRB080330 - SDSS Pre-Burst Observations
  
• 7539 GRB 080330: Liverpool Telescope Optical observations
  
• 7538 GRB 080330A: ROTSE-III Detection of Optical Counterpart
  
• 7537 GRB 080330: Swift detection of a burst with an optical counterpart
  
• 7536 GRB 080330: TAROT Calern observatory optical detection
  
• 7535 GRB 080319B: Continued Gemini-South followup and possible host galaxy
  
• 7534 GRB 080328: BTA optical imaging and spectroscopy
  
• 7533 GRB 080328, Swift-BAT refined analysis
  
• 7532 GRB 080328: Swift XRT refined analysis
  
• 7531 GRB 080325, Swift-BAT refined analysis
  
• 7530 Swift/UVOT observations of GRB080328
  
• 7529 GRB080325 - I and z-band Imaging
  
• 7528 GRB080319B, BVRcIc field calibration
  
• 7527 GRB 080328: Enhanced Swift-XRT position
  
• 7526 GRB080328: Faulkes Telescope North observations
  
• 7525 GRB 080328: Swift detection of a burst with an optical counterpart
  
• 7524 GRB 080325: Subaru detection of NIR afterglow candidate
  
• 7523 GRB080310, late-time photometry with LBT
  
• 7522 GRB 080325: MITSuME Akeno optical upper limits
  
• 7521 GRB080325: XRT Refined Analysis
  
• 7520 GRB 080325: GROND Observations
  
• 7519 GRB080319B: optical observations
  
• 7518 GRB 080325: Swift/UVOT Upper Limits
  
• 7517 GRB 080319C: Gemini-North spectroscopic redshift
  
• 7516 GRB 080325: Early observations from OSN
  
• 7515 GRB 080325: NIR afterglow candidate
  
• 7514 GRB 080319D: GROND Detection of the Optical Counterpart
  
• 7513 GRB 080325: Enhanced Swift-XRT position
  
• 7512 GRB 080325: Swift detection of a burst
  
• 7511 GRB 080319B : Apparent spectral evolution in very early Swift/XRT WT mode data: intrinsic or pile-up effect?
  
• 7510 IBAS Alert n. 5245: NOT a GRB
  
• 7509 GRB 080319B: Spitzer Mid-infrared Observations
  
• 7508 GRB 080319C: Suzaku WAM observation of the prompt emission
  
• 7507 GRB 080319B: Second & Third Epoch WSRT Radio Observations
  
• 7506 Radio Detection of GRB 080319B
  
• 7505 GRB 080320, Swift-BAT refined analysis
  
• 7504 GRB 080319B: Optical observation (Brno, CZ)
  
• 7503 GRB 080319D: GROND Observations
  
• 7502 GRB 080319B: TORTORA light curve
  
• 7501 GRB 080319B: optical upper limit
  
• 7500 GRB 080319D: optical upper limit
  
• 7499 GRB080319B: Time-Independent XRT Spectrum
  
• 7498 GRB 080319D, Swift-BAT refined analysis
  
• 7497 GRB 080319C: UVOT Observations
  
• 7496 GRB 080319B: UVOT Observations
  
• 7495 GRB 080319A: UVOT Observations
  
• 7494 GRB 080320: Swift XRT refined analysis
  
• 7493 GRB 080319B - CARMA mm Observations
  
• 7492 GRB 080320: Early Super-LOTIS Observations
  
• 7491 GRB 080320: J detection with FLAMINGOS
  
• 7490 GRB 080319D: Swift XRT refined analysis
  
• 7489 GRB 080320: optical limit
  
• 7488 GRB 080320: Gemini-N optical afterglow
  
• 7487 Konus-Wind observation of GRB 080319C
  
• 7486 GRB 080319B: Gemini-South photometry
  
• 7485 GRB 080319B: Allen Telescope Array Observations
  
• 7484 GRB 080319B optical observations
  
• 7483 GRB 080319C, Swift-BAT refined analysis
  
• 7482 Konus-Wind observation of GRB 080319B
  
• 7481 GRB 080319B: WSRT Radio Observations
  
• 7480 GRB 080320: SDSS source and Gemini-N observations
  
• 7479 GRB 080320: Enhanced Swift-XRT position
  
• 7478 GRB 080320: optical limit from IAC80
  
• 7477 GRB 080319C: Early RAPTOR Observations
  
• 7476 GRB 080319B: second epoch imaging from Canarias (correction to GCN7469)
  
• 7475 GRB 080319C: KAIT OA observations
  
• 7474 GRB 080320 - SDSS Pre-Burst Observations
  
• 7473 GRB 080320: Swift detection of a burst
  
• 7472 GRB 080320: ROTSE-III Optical Limits
  
• 7471 GRB 080319B : Lulin observation of temporal break at 0.2 days
  
• 7470 GRB 080319B: ROTSE-III Observations of Optical Counterpart
  
• 7469 GRB 080319B: optical observations
  
• 7468 GRB 080319C - SDSS Pre-Burst Observations
  
• 7467 GRB 080319A SDSS Pre-Burst Observations
  
• 7466 Swift-BAT trigger 306829 is IGR J16479-4514
  
• 7465 GRB080319B - SDSS Pre-Burst Observations
  
• 7464 GRB 080319B: RAPTOR observations of a naked eye burst
  
• 7463 GRB 080319A: Swift-XRT Team Refined Analysis
  
• 7462 GRB 080319B, Swift-BAT refined analysis
  
• 7461 GRB080319B: Prompt PROMPT Detections
  
• 7460 GRB 080319C: Swift-XRT Team Refined Analysis
  
• 7459 GRB 080319B: Swift-XRT Team Refined Analysis
  
• 7458 GRB 080319D: Swift/UVOT Refined Analysis of the Fading Optical Afterglow Candidate
  
• 7457 GRB 080319C: AGILE-MCAL observation of the prompt emission
  
• 7456 GRB 080319B: Hobby-Eberly Telescope Spectroscopy
  
• 7455 GRB 080319D: MASTER-VWF-Kislovodsk optical observation
  
• 7454 GRB 080319C: MASTER-VWF-Kislovodsk optical observation
  
• 7453 GRB 080319D: Swift detection of a burst with a possible optical afterglow
  
• 7452 GRB 080319B: TORTORA synchronous observation
  
• 7451 VLT/UVES redshift of GRB 080319B from FeII fine-structure lines
  
• 7450 GRB 080319A/B/C: INTEGRAL SPI-ACS light curves available
  
• 7449 GRB 080319B: Enhanced Swift-XRT position
  
• 7448 GRB 080319A: Enhanced Swift-XRT position
  
• 7447 GRB 080319A, Swift-BAT refined analysis
  
• 7446 GRB 080319B: REM early data
  
• 7445 GRB 080319b light curve by Pi-of-the-Sky
  
• 7444 VLT/UVES redshift of GRB 080319B
  
• 7443 GRB 080319C: Early Super-LOTIS Observations
  
• 7442 GRB 080319C: Swift detection of a burst with an optical afterglow
  
• 7441 GRB 080319C: KAIT OA candidate
  
• 7440 GRB 080319A: REM observations
  
• 7439 GRB 080319b prompt optical observation by Pi-of-the-Sky
  
• 7438 GRB 080319B: Change in power law decay index
  
• 7437 GRB 080319B: Gemini-South Spectroscopy
  
• 7436 GRB 080319A: optical observations at the NOT
  
• 7435 GRB0 080319B : LOAO optical observation
  
• 7434 GRB 080319b: Early IR Imaging from PAIRITEL
  
• 7433 GRB080319B Liverpool Telescope optical afterglow candidate
  
• 7432 GRB 080319B: Super-LOTIS Detection of a Bright OT
  
• 7431 GRB 080319B: REM observations
  
• 7430 GRB 080319B: KAIT OA
  
• 7429 GRB080319A: P60 Optical Afterglow Observations
  
• 7428 GRB 080319B: UVOT Position
  
• 7427 GRB 080319B: Swift detection of an intense burst with a bright optical counterpart
  
• 7426 GRB 080319A: Swift detection of a burst
  
• 7425 Swift Trigger 306745 is not a GRB
  
• 7424 Swift Trigger 306616 is not a GRB
  
• 7423 GRB080310, LBT and MDM photometry
  
• 7422 GRB080315: Bok Optical Observations
  
• 7421 Swift/UVOT observations of GRB 080315
  
• 7420 Swift trigger 306323: Swift-BAT/XRT refined analysis
  
• 7419 SAX J1818.6-1703: Swift detection (trigger 306379)
  
• 7418 GRB 080315: Optical observations
  
• 7417 GRB 080315: TAROT Calern observatory optical observations
  
• 7416 GRB 080315: Swift detection of a possible burst
  
• 7415 GRB080310 : Lulin Optical observations
  
• 7414 GRB080310, unusual slow decay in the optical
  
• 7413 GRB 080310: GAO 150cm telescope Optical Observation
  
• 7412 GRB080310 : Optical observations by LOAO and Lulin
  
• 7411 GRB 080310: ROTSE-III Observations of Optical Counterpart
  
• 7410 GRB080310: Optical observation by MITSuME telescope
  
• 7409 GRB080310, optical observations with the LBT
  
• 7408 GRB 080307: GAO 150cm telescope Optical Observation
  
• 7407 GRB 080229A: GAO 150cm telescope Optical Observation
  
• 7406 GRB 080310: PAIRITEL detection and PAIRITEL+KAIT+UVOT SED
  
• 7405 GRB 080307: NIR upper limit
  
• 7404 GRB 080229: NIR upper limit
  
• 7403 GRB 080310: early RAPTOR multicolor observations
  
• 7402 GRB 080310, Swift-BAT refined analysis
  
• 7401 GRB080210: optical observations
  
• 7400 GRB080307: optical upper limit
  
• 7399 GRB 080310: Swift-XRT refined analysis
  
• 7398 GRB 080310: Swift/UVOT Refined Analysis
  
• 7397 GRB 080310: Redshift from Keck/DEIMOS Spectra
  
• 7396 GRB 080310 - SDSS Pre-Burst Observations
  
• 7395 GRB080310 : Lulin optical observation
  
• 7394 GRB 080310: Enhanced Swift-XRT position
  
• 7393 GRB 080310: RRM optical photometry with the VLT
  
• 7392 GRB080310, detection of break in optical
  
• 7391 GRB 080310: VLT/UVES spectroscopy
  
• 7390 GRB080310, optical observations with LBT
  
• 7389 GRB 080310: Magellan redshift revision
  
• 7388 GRB 080310: Lick/Kast Spectroscopy
  
• 7387 GRB080310: Super-LOTIS suggestion of brightening
  
• 7386 GRB 080310, SMARTS optical/IR afterglow observations
  
• 7385 GRB 080310: REM observations
  
• 7384 GRB 080310: Magellan redshift
  
• 7383 GRB 080310 afterglow candidate (correction to UT time)
  
• 7382 GRB 080310: Swift detection of a burst with optical afterglow
  
• 7381 GRB 080310 afterglow candidate
  
• 7380 GRB080229, optical upper limit (Correction)
  
• 7379 GRB080307, optical upper limit
  
• 7378 GRB080307 BOAO optical afterglow observation - detection of a possible OT
  
• 7377 GRB080229, optical upper limit
  
• 7376 GRB 080307: Swift-XRT Team refined analysis
  
• 7375 GRB 080307: Swift/UVOT Upper Limits
  
• 7374 GRB 080307: Early RAPTOR Limits
  
• 7373 GRB 080307, Swift-BAT refined analysis
  
• 7372 GRB080307 - SDSS Pre-Burst Observations
  
• 7371 GRB 080307: TNT optical observation
  
• 7370 GRB080307: Optical upper limits
  
• 7369 GRB 080307: Gemini-N i-band observations - candidate afterglow
  
• 7368 GRB 080307: BOAO imaging - retraction and new limit
  
• 7367 GRB 080307: retraction of UVOT candidate
  
• 7366 GRB 080307: Enhanced Swift-XRT position
  
• 7365 GRB 080307, Preliminary Swift-BAT refined analysis
  
• 7364 GRB 080307 : BOAO optical afterglow observation
  
• 7363 GRB 080307: Optical observation with DMC/KANATA
  
• 7362 GRB 080307: Swift detection of a burst
  
• 7361 VLA possible radio detection of GRB 080229
  
• 7360 GRB 080303: Swift/UVOT follow-up of afterglow detection
  
• 7359 GRB 080303, Swift-BAT refined analysis
  
• 7358 GRB 080303: Rapid PROMPT Detections
  
• 7357 GRB080303: Swift XRT refined analysis
  
• 7356 GRB 080303: Enhanced Swift-XRT position
  
• 7355 Swift UVOT observations of GRB080229B
  
• 7354 GRB080229B: Swift XRT afterglow observation
  
• 7353 GRB 080303A: Faulkes Telescope South optical afterglow observations
  
• 7352 GRB 080303
  
• 7351 GRB 080303: Swift detection of a burst with optical afterglow
  
• 7350 GRB 080303: REM NIR afterglow candidate
  
• 7349 GRB 080303A: ROTSE-III Optical Limits
  
• 7348 GRB 080229: I-band observations from OSN
  
• 7347 GRB 080229: VLT NIR observations
  
• 7346 GRB080229: Swift XRT refined analysis
  
• 7345 GRB 080229: TNG NIR observations
  
• 7344 GRB 080229: Deep Gemini/GMOS optical observations
  
• 7343 GRB 080229: Enhanced Swift-XRT position
  
• 7342 GRB 080229: REM NIR observations
  
• 7341 GRB080229: Possible optical afterglow
  
• 7340 GRB 080229B: Gamma Ray Burst Localization by SuperAGILE
  
• 7339 UVOT analysis for GRB080229
  
• 7338 GRB 080229, Swift-BAT refined analysis
  
• 7337 GRB 080229: Faulkes Telescope South optical limit
  
• 7336 GRB 080229A: ROTSE-III Optical Limits
  
• 7335 GRB 080229: Swift detection of a bright burst
  
• 7334 Early optical shallow decay in GRB 071112C
  
• 7333 GRB080207: optical observations
  
• 7332 GRB080205: optical observations
  
• 7331 GRB080211: optical observations
  
• 7330 XRF 080109/SN2008D : GMRT upper limit at 1.28 GHz
  
• 7329 GRB 071010B : Early optical brightening detected by TAOS
  
• 7328 Swift-XRT improved positions, and new redshift limits.
  
• 7327 ESO optical and NIR observations of GRB 080218B
  
• 7326 GRB 080204: Suzaku WAM observation of the prompt emission
  
• 7325 GRB 080218B, Swift-BAT refined analysis
  
• 7324 GRB 080218B: Swift-XRT refined analysis
  
• 7323 Swift/UVOT observations of GRB080218B
  
• 7322 GRB 080218B: REM NIR early upper limits
  
• 7321 GRB 080212: Mount Abu NIR observations
  
• 7320 GRB 080218B: Enhanced Swift-XRT position
  
• 7319 GRB 080218B: GROND upper limits
  
• 7318 GRB 080218b, SMARTS optical/IR limits
  
• 7317 GRB 080218A, Swift-BAT refined analysis
  
• 7316 GRB080218B: Watcher prompt limit
  
• 7315 GRB 080211: Suzaku WAM observation of the prompt emission
  
• 7314 GRB 080218B: Swift detection of a burst
  
• 7313 GRB 080218: Swift detection of a burst
  
• 7312 Swift-XRT and UVOT observations of the IPN burst GRB 080211
  
• 7311 GRB 080212: VLT optical rapid decay
  
• 7310 GRB 080212: REM refined analysis
  
• 7309 Konus-Wind observation of GRB 080211
  
• 7308 VLA radio upper limit on GRB 080212
  
• 7307 Swift/UVOT refined analysis of GRB080212
  
• 7306 GRB 080212, Swift-BAT refined analysis
  
• 7305 GRB080212: Optical afterglow candidate observed by MITSuME Telescope
  
• 7304 GRB 080212: Gemini-South optical observations
  
• 7303 GRB 080212: GROND detects afterglow
  
• 7302 GRB 080212: REM NIR afterglow?
  
• 7301 GRB 080212: optical observations
  
• 7300 GRB 080212: Enhanced Swift-XRT position
  
• 7299 GRB 080212: Swift-XRT Team refined analysis
  
• 7298 GRB 080210: Keck photometry
  
• 7297 VLA non-detection of GRB 080210
  
• 7296 GRB 080212: Swift detection of a burst
  
• 7295 IPN localization of GRB 080211
  
• 7294 GRB 080212: DSS/2MASS Galaxy at XRT position
  
• 7293 GRB 080207: VLT NIR early upper limits
  
• 7292 GRB 080210: Swift/UVOT Refined Analysis
  
• 7291 GRB 080207: optical observations.
  
• 7290 GRB 080210: Hobby-Eberly Telescope Absorption Spectroscopy
  
• 7289 GRB 080210, Swift-BAT refined analysis
  
• 7288 GRB 080210: Super-LOTIS observations
  
• 7287 GRB 080210: Swift-XRT Refined Analysis
  
• 7286 GRB 080210: VLT redshift
  
• 7285 GRB 080210: Enhanced Swift-XRT position
  
• 7284 GRB 080210: Rapid PROMPT Detections
  
• 7283 GRB 080210: GOND detection in all bands and redshift upper limit
  
• 7282 GRB080210 - SDSS Pre-Burst Observations
  
• 7281 GRB 080210: Swift detection of a burst with optical afterglow
  
• 7280 GRB 080210: TAROT La Silla observatory optical detection
  
• 7279 GRB 080207: GROND upper limits
  
• 7278 GRB 080205: GAO 150cm telescope Optical limit
  
• 7277 Removed from archive -- duplicate submission.
  
• 7276 GRB 080207: Optical limits from Gemini-South
  
• 7275 GRB 080205: RTT150 optical observations
  
• 7274 Swift detection of AX J1749.1-2639
  
• 7273 GRB 080207: Super-LOTIS observations
  
• 7272 GRB 080207, Swift-BAT refined analysis
  
• 7271 Swift Trigger 302777 is not a GRB
  
• 7270 GRB080207: RTT150 Optical Observations
  
• 7269 GRB 080207: REM NIR observations
  
• 7268 GRB080207: Swift/UVOT refined analysis
  
• 7267 GRB 080207: TAROT Calern observatory optical observations
  
• 7266 GRB 080207: Swift-XRT Refined Analysis
  
• 7265 GRB 080207: Enhanced Swift-XRT position
  
• 7264 GRB 080207: Swift detection of a burst
  
• 7263 Konus-Wind observation of GRB 080204
  
• 7262 GRB 080205 optical upper limit
  
• 7261 GRB 080205: MASTER optical observation
  
• 7260 GRB 080205: optical observation
  
• 7259 VLA radio upper limit on GRB 080205
  
• 7258 INT+WFC R-band observations of GRB 080205
  
• 7257 GRB 080205, Swift-BAT refined analysis
  
• 7256 IPN localization of very hard GRB 080204
  
• 7255 GRB 080205: Swift XRT refined analysis
  
• 7254 GRB 080205: OA evolution from KAIT observations
  
• 7253 GRB 080205: Swift/UVOT observations
  
• 7252 GRB 080205: Enhanced Swift-XRT position
  
• 7251 GRB 080205: KAIT OA detection
  
• 7250 GRB 080205: Swift detection of a burst
  
• 7249 Swift-BAT Trigger #302454, correction of GCN notice, update on AX J1749.1-2639
  
• 7248 GRB 080130: Swift-BAT refined analysis
  
• 7247 GRB 080130: further Swift XRT observations confirm fading source
  
• 7246 GRB 080129: Swift/UVOT Refined Upper Limits
  
• 7245 Swift/UVOT observations of GRB080130
  
• 7244 GRB 080130: REM NIR observations
  
• 7243 GRB 080130(?): Swift XRT observation
  
• 7242 GRB 080130?: Detection of a possible burst by BATSS
  
• 7241 GRB 080129: Optical observations from OSN
  
• 7240 GRB 080129: Swift-XRT refined analysis
  
• 7239 X-ray transient in NGC 2770: RTT150 optical observations
  
• 7238 GRB 080129: KAIT optical limits
  
• 7237 GRB 080123: Early afterglow detection with BATSS (BAT Slew Survey)
  
• 7236 GRB 080129: optical limit by Pi of the Sky
  
• 7235 GRB 080129, Swift-BAT refined analysis
  
• 7234 GRB 080129: TAROT La Silla observatory optical observations
  
• 7233 GRB 080129: Gemini-South photometry
  
• 7232 GRB 080129: GROND detection in all bands, and fading
  
• 7231 GRB 080129: GROND detection of the optical/NIR afterglow, and fading
  
• 7230 GRB 080129: Enhanced Swift-XRT position
  
• 7229 GRB 080129: Gemini-South Imaging Observations
  
• 7228 GRB 080129: Swift XRT position
  
• 7227 GRB 080129 (?): UVOT Upper Limits
  
• 7226 GRB 080129 (?): Swift detection of a possible burst
  
• 7225 A new website of high-level data products for Swift GRBs
  
• 7224 GRB 080121: Upper limit on X-ray afterglow
  
• 7223 GRB 080123 : Suzaku WAM observation of the prompt emission
  
• 7221 Transient 080109/SN 2008D: Spectroscopic Evolution
  
• 7220 GRB 080122: pseudo-z= 1.93 from prompt emission spectrum
  
• 7219 Konus-Wind observation of GRB 080122
  
• 7218 GRB 080122 : Suzaku WAM observation of the prompt emission
  
• 7217 GRB 080121: Swift/UVOT upper limits
  
• 7216 SNe 2008D and 2007uy: Chandra Detections
  
• 7215 GRB 080121 position was incorrect
  
• 7214 GRB 080121: Enhanced Swift-XRT position
  
• 7213 Two non-burst Swift SubThreshold triggers
  
• 7212 Transient 080109/SN 2008D: Spectroscopic Evolution and Re-Classification
  
• 7211 IPN triangulation of GRB080122
  
• 7210 GRB 080121: Nearby SDSS galaxies
  
• 7209 GRB 080121: Swift-BAT detection of a very weak, short burst
  
• 7208 GRB 080123: Swift-XRT refined analysis
  
• 7207 GRB 080123: Swift/UVOT refined analysis
  
• 7206 X-ray transient in NGC 2770: RTT150 optical observations
  
• 7205 GRB 080123, Swift-BAT refined analysis
  
• 7204 GRB 080123: Enhanced Swift-XRT position
  
• 7203 GRB 080123: Swift detection of a short burst
  
• 7202 GRB 080120: GROND confirmation of the optical afterglow
  
• 7201 XRF 080109 / SN 2008D: GMRT radio observation at 1280 MHz
  
• 7200 VLA radio upper limit on GRB 080120
  
• 7199 GRB 080120: Swift-XRT refined analysis
  
• 7198 UVOT detection of GRB080120
  
• 7197 GRB 080120: GROND detection
  
• 7196 GRB 080120 : Planned XMM-Newton observation
  
• 7195 GRB080120: Swift XRT position
  
• 7194 GRB 080120: a long GRB detected by INTEGRAL
  
• 7193 XRF 080109 / SN 2008D: 1.4 GHz WSRT Radio Observations
  
• 7192 Transient in NGC2770 / SN2008D: Metallicity of nearby HII regions
  
• 7191 Transient XRF 080109 / SN 2008D: Mount Abu NIR observations
  
• 7190 XRF 080109 / SN 2008D: WSRT Radio Detection
  
• 7189 Transient 080109/ SN 2008D, metallicity of the host galaxy
  
• 7188 Transient 080109/ SN 2008D, IR Spectrum
  
• 7187 XRF 080109 / SN 2008D: optical observations
  
• 7186 NGC 2770B has the same redshift as NGC 2770
  
• 7185 Swift UVOT Monitoring of the SN 2008D Brightening (Transient in NGC 2770)
  
• 7184 XRF 080109 / SN 2008D: spectroscopic evolution
  
• 7183 XRF 080109 / SN 2008D: UKIRT JHK imaging
  
• 7182 optical observations, XRT in NGC 2770
  
• 7181 XRF 080109/SN 2008D: PROMPT Optical Imaging
  
• 7180 Gemini-South observations of XRF 080109 / SN 2008D
  
• 7179 Swift observations of the X-ray transient in NGC 2770 (aka
  
• 7178 Discovery of Radio Emission from Transient in NGC 2770
  
• 7177 XRF 080109 in NGC2770: NIR observations at TNG
  
• 7176 XRB 080109/SN 2008D: Early decline in brightness and change in colors
  
• 7175 XRB 080109/SN 2008D:PAIRITEL NIR observations and t_0 from Swift
  
• 7174 XRF 080109 in NGC2770: Detectable Superluminal Motion
  
• 7173 Detailed Spectroscopic ID of SN 2008D (Transient in NGC 2770)
  
• 7172 XRF in NGC 2770: Search for X-ray periodicity
  
• 7171 Spectroscopic classification of SN 2008D (Transient in NGC 2770)
  
• 7170 Refined Swift-XRT analysis of the transient in NGC 2770
  
• 7169 Transient in NGC 2770: spectroscopic evidence for a SN
  
• 7168 Refined Swift UVOT Analysis of SN 2008D (Transient in NGC 2770)
  
• 7167 Opticall follow-ups for the X-ray transient in NGC 2770
  
• 7166 X-ray transient in NGC 2770: Optical observations with Astrotel-Caucasus
  
• 7165 Optical Spectroscopy of the Transient in NGC 2770
  
• 7164 Swift UVOT Observations of the X-ray transient in NGC 2770
  
• 7163 Early OT detection of XRF in NGC 2770 in Asiago frames
  
• 7162 Bright X-ray transient / possible XRF in NGC 2770: TNG R imaging
  
• 7161 Possible XRF in NGC 2770 - NOT observations of the optical counterpart
  
• 7160 Bright X-ray Transient (a XRF? ) in NGC 2770 - A SN optical counterpart?
  
• 7159 Bright X-ray Transient in NGC 2770 - A low-luminosity XRF?
  
• 7158 GRB 071227: Suzaku WAM observation of the prompt emission
  
• 7157 GRB 071227: optical afterglow
  
• 7156 Further Swift-BAT analysis of GRB 071227
  
• 7155 Konus-Wind observation of GRB 071227
  
• 7154 GRB 071227: Magellan redshift confirmation
  
• 7153 GRB 071227: Swift-XRT refined analysis
  
• 7152 GRB 071227: VLT probable redshift of the candidate host galaxy
  
• 7151 GRB 071227: Magellan observations
  
• 7150 GRB071227: Swift/UVOT refined analysis
  
• 7149 GRB 071227: REM NIR and Optical observations
  
• 7148 Swift-BAT refined analysis of short GRB 071227
  
• 7147 GRB 071227: Swift detection of a burst
  
• 7146 GRB071020: optical observations
  
• 7145 GRB 070429B: Possible UVOT Detection of an Optical Afterglow
  
• 7144 Swift-BAT trigger 298308 is not a GRB
  
• 7143 GRB 071208?: Swift detection of a possible burst
  
• 7142 IBAS Alert #4772 in not a GRB
  
• 7141 GRB 071125: Suzaku WAM observation of the prompt emission
  
• 7140 GRB 070429B: Probable host galaxy and redshift
  
• 7139 GRB 071129, Swift-BAT refined analysis
  
• 7138 GRB 071129: Swift detection of a burst
  
• 7137 Konus-Wind and Konus-A observations of GRB 071125
  
• 7136 IPN triangulation of very bright GRB 071125
  
• 7135 GRB 071112C: Optical/NIR observations
  
• 7134 Disregard the "GRB 071126" position
  
• 7133 GRB 071126: Enhanced Swift-XRT position
  
• 7132 VLA radio detection of GRB 071122
  
• 7131 GRB071122: Swift/UVOT Observations
  
• 7130 GRB071104: NIR Afterglow Candidate at TNG
  
• 7129 GRB 071122: MASTER optical observation
  
• 7128 GRB 071122, Swift-BAT refined analysis
  
• 7127 GRB 071122 Swift XRT position update sent in error.
  
• 7126 GRB 071122 Swift-XRT refined analysis
  
• 7125 GRB 071122: Corrected P60 Coordinates
  
• 7124 GRB071122: Gemini Absorption redshift
  
• 7123 GRB 071122: P60 Optical Afterglow Candidate
  
• 7122 GRB 071122: ROTSE-III Optical Limits
  
• 7121 GRB 071122: Swift detection of a burst
  
• 7120 GRB 071118: P60 Observations
  
• 7119 GRB071118 MITSuME OAO optical observation
  
• 7118 GRB 071118: Observations from OSN
  
• 7117 GRB 071117: VLT observations and probable redshift
  
• 7116 Swift/UVOT observations of GRB071118
  
• 7115 GRB 071117: Swift-XRT revised position
  
• 7114 Konus-Wind and Konus-A observations of GRB 071117
  
• 7113 Swift XRT follow-up observations of GRB071008
  
• 7112 Swift/UVOT upper limits for GRB 071117
  
• 7111 GRB071118: Swift XRT refined analysis
  
• 7110 GRB 071117: Gemini Optical Afterglow Discovery
  
• 7109 GRB 071118, Swift-BAT refined analysis
  
• 7108 GRB 071117: TAROT La Silla observatory optical observations
  
• 7107 GRB 071112B: Gemini Image Differencing
  
• 7106 GRB 071118: Swift detection of a burst
  
• 7105 GRB 071117: Gemini Observations
  
• 7104 GRB 071117: Las Campanas optical observations
  
• 7103 GRB 071117: Swift-XRT refined analysis
  
• 7102 GRB 071117, Swift-BAT refined analysis
  
• 7101 VLT FORS2 observations of short hard GRB071112B
  
• 7100 GRB 071117: Swift/XRT position
  
• 7099 GRB 071117: Initial Swift/UVOT observations
  
• 7098 GRB 071117: Swift detection of a bright burst
  
• 7097 Swift detection of MXB 0656-072
  
• 7096 VLA radio upper limit on GRB 071112C
  
• 7095 ATCA radio observations of short hard burst GRB 071112B
  
• 7094 GRB 071112C: Optical and NIR data observed with KANATA
  
• 7092 GRB 071112C: WSRT Radio Observations
  
• 7091 GRB071112C: Errata of MITSuME Ic band photometry
  
• 7090 GRB 071112C: optical observation
  
• 7089 GRB 071112C: optical observation
  
• 7088 GRB 071112C: emission lines and refined VLT redshift
  
• 7087 GRB 071112C MITSuME Akeno early optical observation
  
• 7086 GRB 071112C: Gemini Absorption Redshift
  
• 7085 GRB 071112B: 2nd epoch of Magellan i-band imaging
  
• 7084 GRB 071112C: SARA upper limit
  
• 7083 GRB 071112C : Second Epoch Lulin R-band observations
  
• 7082 GRB071112C MITSuME Okayama Optical Observation
  
• 7081 GRB 071112C: Swift-BAT refined analysis
  
• 7080 GRB 071112C: Swift/UVOT observations
  
• 7079 GRB 071112C: Swift XRT refined analysis
  
• 7078 GRB 071112C: Optical observations at Crni Vrh
  
• 7077 Swift UVOT upper limits of GRB071112B
  
• 7076 GRB 071112C: VLT redshift
  
• 7075 GRB 071112B: Magellan i-band imaging
  
• 7074 GRB 071112B: Gemini Optical Imaging (Correction)
  
• 7073 GRB 071112B: Gemini Optical Imaging
  
• 7072 GRB 071112B: Swift-XRT preliminary analysis
  
• 7071 GRB 071112B, Swift-BAT partial refined analysis of the SHB
  
• 7070 GRB071112C: NOT observations
  
• 7069 GRB 071112C: Palomar Pre-Imaging
  
• 7068 Swift-BAT trigger 296491 is not a GRB
  
• 7067 GRB 071112C : Lulin R-band observation
  
• 7066 GRB 071112C: RTT150 optical observations
  
• 7065 GRB 071112C: TAROT Calern observatory optical observations
  
• 7064 Swift XRT follow-up observations of GRB071028B
  
• 7063 =?utf-8?q?GRB071112C=EF=BC=9A_Xinglong_TNT_and_EST_afterglow?= observations
  
• 7062 GRB 071112C: Optical and NIR afterglows observed with KANATA
  
• 7061 GRB 071112C: ROTSE-III Confirmation of Optical Counterpart
  
• 7060 GRB 071112B: ROTSE-III Rapid Optical Limits
  
• 7059 GRB 071112C: Swift detection of a burst with an optical counterpart
  
• 7058 GRB 071112B: Swift detection of a short hard burst
  
• 7057 GRB 071112: Swift detection of a possible burst
  
• 7056 GRB071109: Super-LOTIS observations
  
• 7055 VLA IInd observation of INTEGRAL burst GRB 071109
  
• 7054 Swift/UVOT initial analysis of GRB071109
  
• 7053 GRB 071109: further Swift-XRT analysis
  
• 7052 GRB 071109: TAROT Calern observatory optical observations
  
• 7051 No radio detection at Swift-XRT position
  
• 7050 GRB 071109: Swift-XRT possible X-ray counterpart
  
• 7049 VLA prompt radio detection of the INTEGRAL burst 071109
  
• 7048 GRB 071109: IBIS refined analysis
  
• 7047 GRB 071109: BOOTES-2 prompt optical observations
  
• 7046 GRB 071109: A long GRB detected by INTEGRAL
  
• 7045 GRB 071104: Swift-XRT Team Refined Analysis
  
• 7044 GRB 071104: Possible Swift UVOT Afterglow Candidate
  
• 7043 GRB 071104: Swift-XRT position
  
• 7042 GRB 071104: Gamma Ray Burst Localization by SuperAGILE
  
• 7041 GRB071010b: optical observation
  
• 7040 Swift XRT and UVOT observations of GRB071028B
  
• 7039 GRB 071101, Swift-BAT refined analysis
  
• 7038 GRB 071101: Swift-XRT Team refined analysis
  
• 7037 GRB071101: Optical and NIR upper limits by KANATA
  
• 7036 GRB0711101: Two new source from Xinglong TNT observation
  
• 7035 GRB 071101: TAROT Calern observatory optical observations
  
• 7034 GRB 071101: Swift XRT position
  
• 7033 GRB071101 LOAO B,V,R,I observation
  
• 7032 GRB 071101: BOOTES-2 prompt optical observations
  
• 7031 GRB 071101: a nearby galaxy
  
• 7030 GRB 071101: Swift detection of a burst
  
• 7029 GRB 071031, Swift-BAT refined analysis
  
• 7028 GRB 071031: Swift/UVOT detection of afterglow
  
• 7027 GRB 071031: Swift-XRT Team refined analysis
  
• 7026 GRB 071020: MITSuME Akeno optical observations
  
• 7025 GRB 071031: REM NIR and Optical observation
  
• 7024 GRB 071031, SMARTS afterglow observations
  
• 7023 GRB 071031: VLT high-resolution spectroscopy
  
• 7022 GRB 071031: Rapid PROMPT Detections
  
• 7021 GRB 071031: GROND detection in all bands
  
• 7020 GRB 071031: Swift detection of a burst with an optical counterpart
  
• 7019 GRB 071028B Swift-BAT detection of a burst
  
• 7018 GRB 071025: Optical+NIR observations
  
• 7017 GRB 071028: SARA observations of variable source
  
• 7016 Swift UVOT upper limits to GRB071028
  
• 7015 GRB 071028: Xinglong EST V-band upper limit
  
• 7014 GRB 071028: Swift-XRT Team refined analysis
  
• 7013 GRB 071028, Swift-BAT refined analysis
  
• 7012 GRB 071028: Swift detection of a burst
  
• 7011 GRB 071025: Kuiper Telescope Optical Observations
  
• 7010 GRB 071003: Infrared Photometry with Keck Adaptive Optics
  
• 7009 GRB 071018: Revised BAT position
  
• 7008 GRB 071025A: RAPTOR Observations of Complex Early Optical Behavior
  
• 7007 GRB 071021: MARGE Optical Limits
  
• 7006 GRB 071020, optical upper limit
  
• 7005 GRB 071025: SARA VRI upper limits
  
• 7004 GRB 071025 Milagro GeV/TeV Observations
  
• 7003 GRB 071025: SQIID JHK photometry
  
• 7002 GRB 071025A: Complex Early-Time IR Behavior, Simultaneous with Gamma- and X-rays
  
• 7001 GRB 071025: Optical Pre-imaging from Palomar
  
• 7000 GRB 071025: Swift UVOT upper limits
  

After a while the above table gets too large and then the older entries are moved to the following tables.

Circulars 6900-6999   07-10-12 to 07-10-25
Circulars 6800-6899   07-09-19 to 07-10-12
Circulars 6700-6799   07-08-02 to 07-09-18
Circulars 6600-6699   07-07-05 to 07-08-02
Circulars 6500-6599   07-06-11 to 07-07-05
Circulars 6400-6499   07-05-09 to 07-06-11
Circulars 6300-6399   07-04-18 to 07-05-09
Circulars 6200-6299   07-03-12 to 07-04-18
Circulars 6100-6199   07-02-12 to 07-03-12
Circulars 6000-6099   07-01-07 to 07-02-12
Circulars 5900-5999   06-12-05 to 07-01-07
Circulars 5800-5899   06-11-10 to 06-12-05
Circulars 5700-5799   06-10-06 to 06-11-10
Circulars 5600-5699   06-09-23 to 06-10-06
Circulars 5500-5599   06-09-03 to 06-09-23
Circulars 5400-5499   06-08-05 to 06-09-03
Circulars 5300-5399   06-07-11 to 06-08-05
Circulars 5200-5299   06-06-10 to 06-07-11
Circulars 5100-5199   06-05-10 to 06-06-03
Circulars 5000-5099   06-04-24 to 06-05-10
Circulars 4900-4999   06-03-21 to 06-04-24
Circulars 4800-4899   06-02-20 to 06-03-21
Circulars 4700-4799   06-02-06 to 06-02-20
Circulars 4600-4699   06-01-25 to 06-02-06
Circulars 4500-4599   06-01-13 to 06-01-25
Circulars 4400-4499   05-12-27 to 06-01-13
Circulars 4300-4399   05-11-22 to 05-12-27
Circulars 4200-4299   05-11-06 to 05-11-22
Circulars 4100-4199   05-10-16 to 05-11-06
Circulars 4000-4099   05-09-19 to 05-10-16
Circulars 3900-3999   05-08-28 to 05-09-18
Circulars 3800-3899   05-08-14 to 05-08-28
Circulars 3700-3799   05-07-29 to 05-08-14
Circulars 3600-3699   05-07-13 to 05-07-29
Circulars 3500-3599   05-05-28 to 05-07-13
Circulars 3400-3499   05-05-10 to 05-05-28
Circulars 3300-3399   05-04-21 to 05-05-10
Circulars 3200-3299   05-04-09 to 05-04-21
Circulars 3100-3199   05-03-16 to 05-04-09
Circulars 3000-3099   05-01-30 to 05-03-16
Circulars 2900-2999   04-12-23 to 05-01-28
Circulars 2800-2899   04-10-13 to 04-12-23
Circulars 2700-2799   04-09-09 to 04-10-13
Circulars 2600-2699   04-05-14 to 04-09-09
Circulars 2500-2599   03-12-22 to 04-05-14
Circulars 2400-2499   03-09-25 to 03-12-21
Circulars 2300-2399   03-07-15 to 03-09-24
Circulars 2200-2299   03-05-03 to 03-07-15
Circulars 2100-2199   03-04-05 to 03-05-03
Circulars 2000-2099   03-03-27 to 03-04-05
Circulars 1900-1999   03-02-27 to 03-03-29
Circulars 1800-1899   03-01-11 to 03-02-27
Circulars 1700-1799   02-11-20 to 03-01-11
Circulars 1600-1699   02-10-07 to 02-11-19
Circulars 1500-1599   02-08-16 to 02-10-07
Circulars 1400-1499   02-05-31 to 02-08-16
Circulars 1300-1399   02-03-22 to 02-05-31
Circulars 1200-1299   01-12-13 to 02-03-12
Circulars 1100-1199   01-09-22 to 01-12-13
Circulars 1000-1099   01-03-02 to 01-09-22
Circulars 900-999   00-12-14 to 01-03-01
Circulars 800-899   00-09-27 to 00-12-14
Circulars 700-799   00-06-13 to 00-09-27
Circulars 600-699   00-03-08 to 00-06-13
Circulars 500-599   99-12-16 to 00-03-08
Circulars 400-499   99-08-10 to 99-12-16
Circulars 300-399   99-05-08 to 99-08-10
Circulars 199-299   99-01-23 to 99-05-07
Circulars 100-198   98-06-13 to 99-01-22
Circulars neg4-099   97-02-?? to 98-06-13