//////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1290 SUBJECT: Bepposax GRB020322 The second springtime BSAX GRB DATE: 02/03/22 13:42:26 GMT FROM: SAX Science Operations at IAS/CNR Frascati BEPPOSAX ALERT: GRB020322 The second springtime BSAX GRB (GRB's blossoming season?) On Mar. 22, 03:51:30 UT a faint GRB (GRB020322) has been detected in BeppoSAX WFC2 Refined coordinates are: R.A.(2000)= 18h 00m 54.1s DEC.(2000)= +81 04 53" The error radius is 3'. A Follow-up with the BeppoSAX NFI is being planned Luigi Piro BeppoSAX MIssion Scientist //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1291 SUBJECT: GRB020322: BeppoSAX/NFI Observations DATE: 02/03/22 14:42:22 GMT FROM: Giangiacomo Gandolfi at IAS/CNR Frascati GRB020322: BeppoSAX/NFI Observations A BeppoSAX TOO observation of GB020322 has started about 7.5 hours after the GRB. A preliminary analysis of Quick Look data of MECS(1.6-10 keV) image in the first orbit shows a relatively bright unknown source well inside the WFC error circle. The position is: RA = 270.206 Delta = 81.103 The error radius is 1.5 arcminutes. G. Gandolfi on behalf of BeppoSAX Mission Scientist //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1292 SUBJECT: GRB020322: Optical Observations DATE: 02/03/22 15:48:16 GMT FROM: Derek Fox at CIT D.W. Fox, J.S. Bloom, and P.A.A. Lopes (Caltech) report on behalf of a larger collaboration: "We have observed the full error circle of GRB020322 (GCN #1290, GCN #1291) with the Palomar 60-inch telescope, beginning at 10:39 UT, 7.7 hours after the burst. Our R-band and I-band images show no new objects by comparison with DPOSS images of the region (limiting magnitudes R~20.8, I~19.5). Comparison with images taken roughly 2 hours after our first images also fails to reveal any significantly fading (delta-R > 0.3 mag) R-band sources, to limits slightly deeper than the DPOSS limit, R~22. Further analyses of these data are ongoing." //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1293 SUBJECT: XMM-Newton observation of GRB020322 DATE: 02/03/22 20:46:15 GMT FROM: Norbert Schartel at XMM-Newton/ESA M. Ehle, P. Rodriguez-Pascual, N. Loiseau, M. Santos-Lleo, R. Gonzalez-Riestra, E. Verdugo, L. Tomas and N. Schartel report: A XMM-Newton TOO observation of GRB020322 (L. Piro: GCN 1290) started at 18:18 UT with RGS, 18:46 UT with EPIC/MOS and 19:17 UT with EPIC/pn. A preliminary analysis of Quick Look data of the EPIC images confirms a relatively bright source inside the BeppoSAX MECS error circle as reported by G. Gandolfi (GCN 1291). The coordinates are: R.A.(J2000) = 18h 01m 03.4s Decl.(J2000) = 81d 06m 30.7s The count rates of the source are estimated to be 0.1 [counts/sec] in EPIC/pn and 0.05 in EPIC/MOS, respectively. At this stage the position error is expected to be less than 6". //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1294 SUBJECT: GRB 020322: Optical candidate DATE: 02/03/22 23:35:24 GMT FROM: Josh Bloom at CIT GRB 020322: Optical candidate J. S. Bloom (Caltech), N. Mirabal & J. P. Halpern (Columbia), D. W. Fox, and P. A. A. Lopes (Caltech), report on behalf of a larger collaboration: "Palomar R-band images referred to in GCN #1292 show a faint object consistent with the X-ray afterglow position and uncertainty reported from XMM (Ehle et al., GCN #1293). At 10:39 UT, 7.9 hours after the burst, an object is present at (J2000) 18:01:02.9, +81:06:28.1 Compared to a USNO star at 18:00:58.03, +81:06:08.3 listed as having R=17.5 mag, the candidate optical transient has R = 23.26 +/- 0.32 mag." This message may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1295 SUBJECT: GRB020322, optical observations DATE: 02/03/23 00:18:01 GMT FROM: Peter Garnavich at U of Notre Dame A. Szentgyorgyi, K. Z. Stanek, S. Jha (CfA) and P. Garnavich (Notre Dame) We imaged the BeppoSax position of GRB 020322 (GCN 1290) using the FLWO 1.2m + 4shooter camera beginning Mar. 22.44 (UT). Condidtions were not ideal, but no new sources were detected in the R-band to the limit of the red digitized Palomar Sky Survey. At the position of the XMM-Newton X-ray afterglow (GCN 1293) we find no optical source within the 6" radius error circle to a limit of R=22.5 mag. (based on USNO A2.0 R-band magnitudes). However, there is a faint source just north of the the XMM error circle at RA=18:01:04.03 Dec=81:06:41.87 J2000 with R=21.9. This is close to the DSS limit and it is too faint to determine variability, so we can not confirm that it is related to the X-ray afterglow. An image is available at: http://www.nd.edu/~pgarnavi/grb020322/newton_candidate.jpg The source noted by Bloom et al. (GCN 1294), is below our detection limit. This message may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1296 SUBJECT: GRB 020322: Optical Sources and Improved Astrometry DATE: 02/03/23 04:33:49 GMT FROM: Josh Bloom at CIT GRB 020322: Optical Sources and Improved Astrometry J. S. Bloom (Caltech), N. Mirabal & J. P. Halpern (Columbia), D. W. Fox, and P. A. A. Lopes (Caltech), report on behalf of a larger collaboration: "A stacked Gunn r-band image from the Palomar 60-inch (9x10 min; see GCN #1294) reveals another faint source in the southeast portion of the XMM error circle. ID x y J2000 a 1129.286 1408.630 RA = 18:01:04.20, Dec = +81:06:41.27 b 1135.912 1373.888 RA = 18:01:02.98, Dec = +81:06:28.17 c 1126.379 1367.044 RA = 18:01:04.51, Dec = +81:06:25.49 Source "a" (outside the error circle) is that discussed in Szentgyorgyi et al. (GCN #1295), source "b" (inside the error circle) is from Bloom et al. (GCN #1294), and source "c" (inside the error circle) is the faint source mentioned here. The ICRS positions are found by comparison with the USNO A2.0 and are uncertain by about 300 mas, 350 mas in the RA and DEC, respectively. The x, y coordinates are in pixels of the stacked image. This .fits image, with a WCS written in the header, may be obtained at: http://www.astro.caltech.edu/~jsb/GRB/sum-r1.fits.gz An image of the field showing source a,b, and c may be found at http://www.astro.caltech.edu/~jsb/GRB/grb020322-palr.gif This message may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1298 SUBJECT: GRB 020322 optical observation DATE: 02/03/23 11:13:57 GMT FROM: Jochen Greiner at Astrophys.Inst. Potsdam,Germany J. Greiner (MPE Garching, AIP Potsdam), U. Thiele (MPIA Heidelberg, Calar Alto), S. Klose (Thueringer Landessternwarte Tautenburg), A.J. Castro-Tirado (LAEFF-INTA, Madrid, and IAA-CSIC, Granada) report: We have imaged the location of GRB 020322 with the 3.5 m telescope at Calar Alto (Spain) for three times 10 min. between 22 Mar 2002 23:46 UT to 23 Mar 2002 00:09 UT at a seeing of 1.4 arcsec. Based on the same USNO star at 18:00:58.03, +81:06:08.3 listed as having R=17.5 mag we measure the following magnitudes for the three sources a, b, c (Bloom et al.; GCN 1296) inside the XMM error circle (Ehle et al.; GCN 1293): Calar Alto earlier measurement --------------------------------------------------------------------- a 22.07 +- 0.06 mag 21.9 mag (Szentgyorgyi et al; GCN 1295) b 23.80 +- 0.30 mag 23.26 +- 0.32 mag (Bloom et al.; GCN 1294) c 24.50 +- 0.60 mag While object c is at our detection threshold, object b has clearly faded, as also a visual comparison with the FITS image of Bloom et al. (GCN 1296) shows (though the errors formally allow for constancy of source b). We therefore suggest that source b is the optical counterpart of GRB 020322. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1299 SUBJECT: GRB020322: Candidate Optical Afterglow DATE: 02/03/23 16:02:37 GMT FROM: Don Lamb at U.Chicago R. J. McMillan, D. Q. Lamb, and D. G. York, Report: We have obtained one 10-minute exposure in r' and three 10-minute exposures in i' of the Beppo-SAX NFI error-box (Gandolfi, GCN 1291) for GRB020322 (Piro, GCN 1290) using SPIcam on the ARC 3.5-meter telescope at APO beginning at UTC 9:44 on 2002 March 23. We estimate the magnitude of object b (Bloom et al., GCN 1296) in our images to be r*=24.5+/-0.7 and i*=24.0+/-0.7. We find that object b is now as faint as or fainter than object c (Bloom et al., GCN 1296, Greiner et al., GCN 1298) in both r* and i*. We therefore confirm that the object has faded (Greiner et al., GCN 1298) and is likely to be the optical afterglow of GRB020322. This message is citable. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1300 SUBJECT: GRB 020322 optical observations DATE: 02/03/23 16:23:32 GMT FROM: Jens Hjorth at U.Copenhagen J. Hjorth, on behalf of Javier Gorosabel (who is in transit) and the Danish/Spanish GRB collaboration, reports observations of the likely optical afterglow of GRB 020322 obtained with the NOT on Mar 23 2002 UT. A smoothed R-band image (6 x 900 sec) is posted at http://www.dsri.dk/~jgu/grb020322/322.R.smooth.gif By comparison with the image posted by Bloom et al. (GCN #1296) it is evident that the likely optical afterglow (object b, cf. GCN ##1294,1296,1298,1299) had faded to below R ~ 24 at the time of observations. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1301 SUBJECT: GRB020322 BVRI field photometry DATE: 02/03/23 18:25:03 GMT FROM: Arne A. Henden at USNO/USRA A. Henden (USRA/USNO) reports on behalf of the USNO GRB team: We have acquired BVRcIc all-sky photometry for an 11x11 arcmin field that is approximately centered on the position of the candiate optical transient reported by Bloom et al. (GCN 1296) with the USNOFS 1.0-m telescope on one marginally photometric night. Stars brighter than V=13.5 are saturated and should be used with care. We have placed the photometric data on our anonymous ftp site: ftp://ftp.nofs.navy.mil/pub/outgoing/aah/grb/grb020322.dat The conditions were basically clear, but with weather maps indicating passing clouds over the northern horizon in the direction of the GRB field. There is a slight possibility that the photometry has larger than the expected 0.02mag external error, but all tests (such as color consistency) seem reasonable. The astrometry in this file is based on linear plate solutions with respect to USNO-A2.0. The internal errors are less than 100mas. In particular, the USNO-A2.0 star at 18:00:58.03, +81:06:08.3 that was used to calibrate their field can be found in the .dat file with the following magnitudes: B = 19.42 V = 18.12 R = 17.30 I = 16.59 with estimated photometric errors of about 2 percent, including the known zeropoint errors quoted above. Further calibration of this field will be performed when weather conditions improve and moonlight decreases. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1307 SUBJECT: GRB 020322: Optical Observations DATE: 02/03/25 07:23:24 GMT FROM: Grant Williams at Steward Observatory G. G. Williams (Steward Observatory), H. S. Park (LLNL), and D. H. Hartmann (Clemson University) We have obtained 10 x 600s R-Band images of the position of the candidate afterglow of GRB 020322 (GCN 1291, 1293, 1294) using the Steward Observatory 90-inch Bok telescope. The data were obtained between 23 Mar 2002 09:15 UT and 23 Mar 2002 10:55 UT or 29.4 - 31.0 hours after the burst. Our preliminary analysis reveals that the afterglow candidate suggested by Bloom et al. (GCN 1294) has faded below the detection limit of our stacked image. Using a magnitude of R = 22.0 for star "a" (GCN 1295, 1298), we find a 3-sigma upper limit of: R > 24.5 +/- 0.3 A smoothed image of the field can be obtained at: http://compton.as.arizona.edu/data/GRB020322/grb020322both2.gif This message may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1309 SUBJECT: Near-Infrared Observations of GRB020322 at TIRGO DATE: 02/03/26 15:07:12 GMT FROM: Nicola Masetti at ITeSRE,CNR,Bologna F. Mannucci (IRA/CNR, Firenze), N. Masetti (IASF/CNR, Bologna), E. Pian (INAF, Astr. Obs. Trieste), P. Ranfagni (INAF, Astr. Obs. Arcetri), S. Covino (INAF, Astr. Obs. Brera), G.L. Israel (INAF, Astr. Obs. Rome), on behalf of a larger collaboration, report: We imaged the field of GRB020322 (Piro, GCN #1290) with TIRGO equipped with the near-IR camera ARNICA and the J and Kc filters on 2002 Mar 24.14 - 24.18 UT and on 2002 Mar 25.10 - 25.18 UT. The total exposure times were: 78 min in J and 26 min in Kc on the first epoch; 80 min in J and 66 min in Kc on the second. The PSF FWHM was about 3.0 arcsec on both nights. The images in both bands were calibrated by using an average zero point. No source is significantly detected either at the position of the optical afterglow of this GRB (source `b' of Bloom et al., GCN #1296) or within the XMM-Newton error box (Ehle et al., GCN #1293) down to 3-sigma limiting magnitudes of J = 19.9 and Kc = 18.1 on the first epoch and of J = 19.9 and Kc = 18.7 on the second. However, a ~1-sigma excess is seen at the position of the source `b' in the Kc-band image acquired on the first epoch. A close-up of the four summed images on the XMM-Newton error box can be found at http://tonno.tesre.bo.cnr.it/~masetti/grb020322.html This message may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1310 SUBJECT: GRB 020322, Radio observations DATE: 02/03/27 04:44:48 GMT FROM: Greg Taylor at NRAO G. B. Taylor (NRAO), and E. J. Berger (Caltech) report on behalf of the Caltech-NRAO-CARA collaboration: "We have imaged the entire 1.5 arcmin WFC error circle of GRB 020322 (GCN 1290, 1291) with the VLA at 8.46 GHz on UT 2002 Mar. 22.71, Mar. 23.70, and Mar. 26.94. We detect no new sources stronger than 125 microJy (5 sigma) on Mar. 22.71 (13.2 hours after the burst) and no source stronger than 60 microJy (5 sigma) in the combined observations. At the location of the likely optical afterglow (object b in GCN 1294, 1296, 1298, 1299, 1300), the observed flux density is less than 36 microJy/beam (3 sigma) in the combined observations." This message may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1313 SUBJECT: GRB 020322: BeppoSAX observations of the X-ray afterglow DATE: 02/03/28 12:11:05 GMT FROM: Angelo Antonelli at Obs. Astro. di Roma L.A. Antonelli, INAF - Osservatorio Astronomico di Roma, Rome; L. Piro, G. Gandolfi, M. Feroci, Istituto di Astrofisica Spaziale e Fisica Cosmica (IASF), CNR, Rome; G. Gennaro, C. Aureli, BeppoSAX Science Operation Center, Telespazio, Rome; M. Capalbi, ASI Science Data Center, Rome; J. Heise, J. in't Zand , Space Research Organization Netherlands, Utrecht and, F. Frontera, C. Guidorzi, E. Montanari, Dip. di Fisica Universita' di Ferrara, Ferrara, report: "The WFC error box (GCN #1290) of GRB 020322 was observed twice with the Narrow Field Instruments (NFI) on board BeppoSAX. First observation started on Mar 22.42866 UT (about 6.5 hours after the burst trigger) and lasted 18600 sec elapsed time. Second observation started on Mar 23.27757 UT and lasted 23000 sec elapsed time. A preliminary analysis of both observations reveals a previously unknown X-ray source, 1SAX J180059+8106.7, at the position RA = 18h 00m 59.1s, Decl.= +81d 06' 44" (Equinox 2000, error radius of 50"). Source position is located within the WFC error circle (Gandolfi GCN #1290) and is consistent with the preliminary NFI analysis reported by Gandolfi (GCN #1291) and with the XMM position (Ehle et al., GCN #1293). The source is well detected in both BeppoSAX observations and in the second observation its flux is faded of about a factor of 3. We conclude that 1SAX J180059+8106.7 is the X-ray afterglow of GRB 020322." This message may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1536 SUBJECT: GRB020322 : HST/STIS observations DATE: 02/09/05 23:20:39 GMT FROM: Andrew Levan at U.of Leicester I. Burud, A. Fruchter, J. Rhoads, and A. Levan (STScI) report for the larger GOSH (GRB Optical Studies with HST) collaboration: We observed the field of GRB 020322 with STIS in open (50CCD) mode on UT 2002 April 8 and on June 5. The position of the transient with respect to the STIS image was determined by performing relative astrometry using the optical image of the transient from Bloom et al. (GCN 1296). The accuracy of the position translated to the HST image is estimated to be 0.08 arcsec. We see no evident OT, but at the position of the transient there is an extended 27th magnitude galaxy which is likely to be the host. The sum of the two epochs of observations is displayed at http://www.stsci.edu/~fruchter/GRB/020322 When subtracting the images from the two epochs no residual signal is detected above 3 sigma near the position of the OT, giving a limiting magnitude of 30.1 mags for any transient. Based on the ground-based observations from Bloom et al. (GCN 1294), Greiner et al. (GCN 1298), Hjorth et al. (GCN 1300) and Williams et al. (GCN 1307) and the non-detection of the OT in the HST/STIS image we conclude that the late time R-band decay of the OT must be steeper than 2.0. A plot of all the data points can be found on the aforementioned web page. We thank J. Bloom and the Caltech GRB group for making their ground-based data rapidly public (GCN1296).