//////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2805 SUBJECT: GRB 041015 - A long GRB detected by INTEGRAL DATE: 04/10/15 13:04:48 GMT FROM: Sandro Mereghetti at IASF/CNR S. Mereghetti, D. Gotz (IASF, Milano), M.Beck, S.Shaw, N.Mowlavi (ISDC), J.Borkowski (CAMK, Torun) on behalf of the IBAS Localization Team report A faint, 30 s long GRB has been detected with the INTEGRAL Burst Alert System (IBAS) on October 15 at 11:11:30 UT. The GRB has been detected with IBIS/ISGRI in the 15-200 keV band but with a significance below the threshold for automatic delivery of the IBAS Alert Packets. Its coordinates (J2000) are: R.A. = 0h 18m 37s Dec. = +66d 51' 37'' with an uncertainty of 3 arcmin (90% c.l. radius) The preliminary analysis indicates a peak flux of 0.2 photons/cm2/s (3.6e-8 erg/cm2/s) in the 20-200 keV range (1 sec integration) This message can be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2806 SUBJECT: GRB041015 : Optical follow-up at Kiso DATE: 04/10/15 16:01:16 GMT FROM: Yuji Urata at RIKEN T. Mizuno, Y. Arai, F. Sato (Tokyo Gakugei Univ), M. Isogai and Y. Urata on behalf on Kiso GRB team report: " We have observed the entire INTEGRAL error circle of GRB041015 (S. Mereghetti et al., GCN 2805) with the Kiso observatory 1.05 Schmidt telescope started at 13:40 UT (0.10255 days after the burst). We obtained six R-band images with 300 sec exposure. The upper limit is about R~21 mag. estimated from several USNO-B1.0 catalogue. Comparison with DSS II red image, we can not find new objects brighter than the limit of DSS image." This message may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2807 SUBJECT: GRB 041015: Optical limit at Osaka University DATE: 04/10/15 16:58:27 GMT FROM: Ken ichi Torii at RIKEN K. Torii and Yuuichi Fukazawa (Osaka University) report: The entire error region of GRB 041015 (Mereghetti, et al., GCN 2805) was observed with the 14-inch Automated Response Telescope at Osaka University. The observation started at 2004 October 15 13:08:48 UT (59-s after the IBAS packet time) and 60-s integration was repeated. We stacked 20 unfiltered images obtained between 13:10 and 13:31 UT and compared it with the USNO-A2.0(R) catalog. No new source brighter than R~17.7 mag was identified. === //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2809 SUBJECT: GRB041015,optical observation DATE: 04/10/15 18:32:53 GMT FROM: Eri Sonoda at U of Miyazaki/Japan E.Sonoda,S.Maeno,Y.Matsuo,M.Yamauchi (University of Miyazaki) "We have observed the field covering the error box of GRB041015 (INTEGRAL trigger 2019) with the unfiltered CCD camera on the 30-cm telescope at University of Miyazaki.The observation was started 16:14:19 UT on Oct.15. Observed field of view is 43 arcmin centered on R.A.=00h 19m 30.97s Dec.=+66d 40' 32.1". We have compared our images with the USNO A2.0 catalog.Preliminary analysis shows there is no new source brighter than 17.3mag. in the GRB error box reported by S.Mereghetti et al.(GCN2805)." //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2810 SUBJECT: GRB041015: MASTER: Optical observations DATE: 04/10/15 19:30:54 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, A.Krylov, V.Kornilov, G.Borisov, D.Kuvshinov, A.Belinski, M.Kuznetsov, S.Potanin, G.Antipov, E.Gorbovskoy, N.Tyurina Sternberg Astronomical Institute, Alexandr Krylov Observatory, Moscow At 4h 15m after INTEGRAL GRB trigger time (alert 2019) MASTER robotic telescope (http://observ.pereplet.ru) had imaging the corresponding area of the sky under the nice weather conditions. The first image was started at 15h23m UT. We have 20 unfiltered images of the error box (30s exposition, 2.4 x 2.4 degrees, 355 mm telescope, Alta U16 CCD camera). We can not find new stars with respect to DSS2 red images (R<21m). Sum FITS image are available at http://observ.pereplet.ru/images/GRB041015/ This message may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2812 SUBJECT: GRB 041015 R band observations DATE: 04/10/16 06:51:57 GMT FROM: Shashi Bhushan Pandey at State Obs.Nainital,India Kuntal Misra and S. B. Pandey (ARIES NainiTal), on behalf of larger Indian GRB collaboration We observed the GRB 041015 field (INTEGRAL trigger 2019) with 1.04m reflector at ARIES NainiTal, starting at Oct 15.6424 UT. Co-added R_c frame (2 x 900 sec) did not reveal any new source within error-box upto ~ 20 mag, in comparison with nearby USNO-A2.0 stars. This message can be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2815 SUBJECT: GRB 041015: Optical Observations at Rikubetsu DATE: 04/10/16 19:24:36 GMT FROM: Ken ichi Torii at RIKEN Takuya Murata (Rikubetsu Astronomical Observatory) and K. Torii (Osaka U.) report: The entire error region of GRB 041015 (Mereghetti, et al., GCN 2805) was observed with the 1.15-m Rikuri telescope of the Rikubetsu Astronomical Observatory, Hokkaido, Japan. 7 x 60-s and 1 x 300-s unfiltered frames were obtained between 2004 Oct. 15, 14:37 UT and 16:39 UT. Comparison of the first 60-s frame with the DSS2 red frame does not reveal a new source brighter than about 20.0 mag (USNO-A2.0 R). === //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2825 SUBJECT: GRB041015 : Multi epoch optical observations DATE: 04/10/19 16:37:47 GMT FROM: Yuji Urata at RIKEN M. Isogai(Tokyo Univ.), T. Mizuno, Y. Arai, F. Sato(Tokyo Gakugei Unive.), Y. Urata, T. Tamagawa(RIKEN), K.Y Huang(NCU), on behalf of an east Asian collaboration report: " We have carried out R-band imaging observation for the entire INTEGRAL error region (S. Mereghetti et al., GCN 2805) at Kiso observatory. We have obtained totally 9 R-band images with 300 sec exposures started at 15.558 UT (0.103 days after the burst, Mizuno et al., GCN2806) and 15.782 UT (0.327 days after the burst). Comparing with two epoch our data, there is no variable source down to R~ 21.9. The upper limit is estimated from several USNO-B1.0 catalogue stars." This message may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2828 SUBJECT: GRB041015, optical observation in CrAO DATE: 04/10/22 11:30:46 GMT FROM: Vasilij Rumjantsev at CrAO V.Rumyantsev (CrAO), V.Biryukov (SAI, MSU), A.Pozanenko (IKI) report: We have observed the error box of GRB041015 (INTEGRAL trigger 2019) with 2.6m telescope of Crimean Astrophysical Observatory. Six R-band images with 120 sec exposure were taken between (UT) Oct.16 21:25 - 21:38 under moderate weather conditions. The observed fields was 2.4x1.6 arcminutes centered at the error box. The upper limit of combined image is R~22.0 mag. as estimated from several stars USNO-A2.0 catalog. Comparison with DSS2 red plate does not reveal any new objects brighter than ~20 mag. The combined image is available at http://grb.rssi.ru/GRB041015/ This message may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2834 SUBJECT: GRB041015: Near-Infrared observations DATE: 04/11/11 05:52:37 GMT FROM: Kenzo Kinugasa at Gunma Astro. Obs/Japan K. Kinugasa and E. Nishihara (Gunma Astronomical Observatory) report: The entire INTEGRAL error circle of GRB041015 (S. Mereghetti et al., GCN 2805) was observed in J-, H-, and Ks-band with the 1.5-m telescope and the IR Camera at Gunma Astronomical Observatory, Gunma, Japan. The observation started at 13:53:15 UT (162 min after the burst) on the night of 2004 October 15. We stacked 20 x 10-s J-band, 50 x 5-s H-band, and 50 x 5-s Ks-band frames and compared them with 2MASS JHKs images. We found no new source brighter than J=16.6, H=16.0, and Ks=15.6, which are near the limits of 2MASS catalog. This message may be cited.