//////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1766 SUBJECT: GRB021219: a long GRB localized by INTEGRAL DATE: 02/12/19 12:36:03 GMT FROM: INTEGRAL Shift Ops at INTEGRAL S. Mereghetti, D. Gotz, J. Burkowsky, the INTEGRAL Science Data Center and the INTEGRAL Science Working team report the detection of GRB021219 at 07:33:57 UTC in the field of view of the IBIS telescope on board ESA's INTEGRAL satellite. The burst lasted about 4 seconds and had a peak flux of about 1-2 10^-7 erg/cm2/s in the 25-100 keV range. The preliminary position is RA 18h50m and DEC +31deg 52s with an uncertainty of 20' (radius) dominated by systematics. A refined position will be reported as soon as available. This message is citable. [GCN OPS NOTE (19dec02): Due to a typing mistake the GRB declination in GCN 1766 was reported as +31deg 52s. The correct value is +31deg 52min There was also a spelling error in the name of J.Borkowski.] //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1768 SUBJECT: GRB021219 refined position with INTEGRAL DATE: 02/12/19 18:07:56 GMT FROM: INTEGRAL Shift Ops at INTEGRAL D.Gotz (IASF-Milano), P.Favre (ISDC), S.Mereghetti (IASF-Milano) and J.Borkowski (ISDC) and the INTEGRAL Science Working team report : Further analysis of the INTEGRAL IBIS data led to a refined position of GRB021219 of RA 18h 50.5m DEC 31deg 54m (J2000) with an uncertainty of 4 arcmin. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1769 SUBJECT: GRB021219: Correction to GCN 1766 DATE: 02/12/19 18:24:01 GMT FROM: INTEGRAL Shift Ops at INTEGRAL Due to a typing mistake the GRB declination in GCN 1766 was reported as +31deg 52s. The correct value is +31deg 52min There was also a spelling error in the name of J.Borkowski //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1770 SUBJECT: GRB021219, optical observation by MASTER DATE: 02/12/19 21:43:26 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, A. Krylov, V. Kornilov, G. Borisov, D. Kuvshinov, M. Kuznetcov S. Patanin - Sternberg Astronomical Institute, Moscow report: We observed with MASTER-system (http://observ.inetcomm.ru/) error box of the burst GRB 021219 (GCN INTEGRAL Circ 1766) at 15:04:07 UT (after 7,5 hours GRB time) between cloudes. There is no OT brighter than 13.7 (With respect to R-USNO stars). The corected eror box (GCN Circ 1769) was in our field. The Images can be seen at URL: http://observ.inetcomm.ru/images/19122002/ Circular may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1771 SUBJECT: IPN triangulation of GRB021219 DATE: 02/12/19 22:27:31 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley and T. Cline, on behalf of the Ulysses GRB team, and D.Gotz (IASF-Milano), P.Favre (ISDC), S.Mereghetti (IASF-Milano), J.Borkowski (ISDC), and the INTEGRAL Science Working team, report: This burst (GCN 1766, 1767, 1768) was also observed by Ulysses. Although the INTEGRAL timing is still undergoing refinement, we have triangulated it assuming a systematic uncertainty of 100 ms, which is supported by recent SGR observations. The preliminary annulus is centered at RA, Decl(2000)= 182.935, 36.337 degrees, with radius 78.549 +/- 0.023 degrees (3 sigma ). This annulus intersects the INTEGRAL error circle given in GCN 1768 at two points: RA DEC 282.557459=18 H 50 M 13.79 S 31.832096= 31 o 49' 55" 282.642596=18 H 50 M 34.22 S 31.932013= 31 o 55' 55" This reduces the error box size to about 15 square arcminutes. This annulus may be improved. A map has been posted at ssl.berkeley.edu/ipn3/021219. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1772 SUBJECT: IPN triangulation of GRB021219 - CORRECTION DATE: 02/12/19 22:46:36 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley and T. Cline, on behalf of the Ulysses GRB team, and D.Gotz (IASF-Milano), P.Favre (ISDC), S. Mereghetti (IASF-Milano), J. Borkowski (ISDC), and the INTEGRAL Science Working team, report: The IPN annulus actually intersects the INTEGRAL error circle given in GCN 1768 at four points, not two: RA DEC 282.572616=18 h 50 m 17 s 31.849899= 31 o 50 ' 59 " 282.664692=18 h 50 m 39 s 31.957916= 31 o 57 ' 28 " 282.546093=18 h 50 m 11 s 31.898856= 31 o 53 ' 55 " 282.601577=18 h 50 m 24 s 31.963983= 31 o 57 ' 50 " Thus the agreement between the annulus and the error circle is improved, but the error box size increases to about 22 square arcminutes. A revised map has been posted at ssl.berkeley.edu/ipn3/021219. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1773 SUBJECT: GRB021219, optical observations DATE: 02/12/20 20:45:29 GMT FROM: Arne A. Henden at USNO/USRA A. Henden (USRA/USNO), J. Hambsch (VVS/AAVSO), E. Broens (VVS/AAVSO) report: We have imaged the entire error circle of GRB021219 (Mereghetti et al., GCN 1766; Gotz et al., GCN 1768) with the following results: UTD dt(burst) tele exp filt condx lim_mag 021219.78 11hr 0.4m 8x5min Rc poor 18.0 021220.06 18hr 1.0m 12min Ic poor 19.5 Comparison with the DSS-2 F and N plates show only a few objects near the plate limit that may or may not be real, but no new bright object. No galaxies are seen; at galactic longitude 61.8 and latitude +14, this field is relatively close to the galactic plane. No additional observations are planned. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1774 SUBJECT: GRB021219: Radio Observations DATE: 02/12/20 21:52:26 GMT FROM: Edo Berger at Caltech E. Berger (Caltech) and D. A. Frail (NRAO) report on behalf of a larger collaboration: "On December 20.03 UT we used the VLA at 4.86 GHz to observe the error box of GRB 021219 (GCN 1766). We detect a single radio source within the refined IPN+INTEGRAL error region (GCN 1772), which is visible in the NRAO VLA Sky Survey (NVSS; Condon et al. 1998, AJ, 115, 1693). There are no additional sources down to a 4-sigma limit of 220 microJy." This message may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1775 SUBJECT: GRB 021219: OSN optical observations DATE: 02/12/20 23:00:11 GMT FROM: Alberto Castro-Tirado at Inst.de Astro. de Andalucia A. J. Castro-Tirado, J. Gorosabel and P. Amado (IAA-CSIC, Granada) J. M. Castro Cerón (ROA, San Fernando) report: "On Dec 20.74 UT we observed the field of the GRB 021219 detected by INTEGRAL (Mereghetti et al. GCN 1766) with the 1.5-m Telescope at the Observatorio de Sierra Nevada in Granada, in order to monitor the entire IBIS-IPN error box (Hurley et al. GCN 1771, Gotz et al. GCN 1772). In the co- added image (6 x 300-s in the Johnson R-band filter with a 2".5 seeing), no optical transient is found when comparing to the DSS-2 (R-band) down to R = 20.5". This message is citeable.