//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 24026 SUBJECT: Fermi Trigger 575656777 / GRB 190330694 / GRB 190330A: BALROG localization DATE: 19/03/30 19:23:40 GMT FROM: Jochen Greiner at MPE,Garching B. Biltzinger, F. Kunzweiler, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report: The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 575656777 at 16:39:32 on 30 March 2019 were automatically fitted for spectrum and sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427; Berlato et al. 2019, ApJ 873, 60). The best-fit position (1 sigma statistical errors) is: RA(2000.0) = 104.3+/-2.0 deg Decl.(2000.0) = 24.3+/-1.7 deg We estimate an additional systematic error of 2 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB190330694/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB190330694/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB190330694/json //////////////////////////////////////////////////////////////////////// : 24035 SUBJECT: GRB 190330A: Insight-HXMT/HE detection DATE: 19/04/01 13:49:33 GMT FROM: Qi Luo at IHEP Q. Luo, C. K. Li, X. B. Li, G. Li, J. Y. Liao, S. L. Xiong, C. Z. Liu, X. F. Li, Z. W. Li, Z. Chang, X. F. Lu, A. M. Zhang, Y. F. Zhang, C. L. Zou (IHEP), Y. J. Jin, Z. Zhang (THU), T. P. Li (IHEP/THU), F. J. Lu, L. M. Song, M. Wu, Y. P. Xu, S. N. Zhang (IHEP), report on behalf of the Insight-HXMT team: At 2019-03-30T16:39:32.000 (T0), the Insight-HXMT/HE detected GRB 190330A(trigger ID: HEB190330694) in a routine search of the data, which was also triggered by Fermi/GBM(B. Biltzinger et al. ,GCN 24026). The Insight-HXMT/HE light curve mainly consists of one pulse with a duration (T90) of 9.28 s measured from T0-0.81 s. The 1-ms peak rate, measured from T0+0.205 s, is 1338 cnts/sec. The total counts from this burst is 3183 counts. URL_LC: http://www.hxmt.org/images/GRB/HEB190330694_lc.jpg All measurements above are made with the CsI detectors operating in the regular mode with the energy range of about 80-800 keV (record energy). Only gamma-rays with energy greater than about 200 keV can penetrate the spacecraft and leave signals in the CsI detectors installed inside of the telescope. Insight-HXMT is the first Chinese space X-ray telescope, which was fundedjointly by the China National Space Administration (CNSA) and the Chinese Academy of Sciences (CAS). More information about it could be found at: http://www.hxmt.org. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 24047 SUBJECT: GRB 190330A: MITSuME Akeno and Okayama optical upper limits DATE: 19/04/04 13:51:36 GMT FROM: Adachi Ryo at Tokyo Institute of Tech R. Adachi, M. Niwano, K. Iida, K. L. Murata, M. Oeda, K. Shiraishi, Y. Yatsu, and N. Kawai (Tokyo Tech) report on behalf of the MITSuME collaboration: We performed tiling observation for the error region of GRB 190330A (B. Biltzinger et al., GCN Circular #24026) with an optical tri-color (g', Rc, and Ic) camera attached to the MITSuME 50cm telescopes at Akeno Observatory and Okayama Astrophysical Observatory, in Japan. The follow up observation started at 2019-03-31 10:14:29 UT, 63,297 sec after the trigger. Our tiling observation covered almost 100% of the Fermi-GBM Ground Position error circle (GCN Notices Trigger num.=575656777, record num.=58). Compared our co-added images with GSC2.3 catalog, we found no bright optical transient in the observed region. Because the elevation of the target field had dropped from 50 deg to 10 deg during the observations and the sky condition was unstable, the obtained upper limits are different for each field. The 5-sigma upper limits of the co-added images are listed below. Field num. center position(R.A., Dec.) size of field(R.A.(arcmin) x Dec.(arcmin)) 5-sigma upper limit start observation time(UT) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Field 0 6:03:09, +16:37:06 25.5 x 25.7 g' > 18.4, Rc > 18.2, Ic > 17.4 10:14:29 31 March Field 1 6:04:43, +16:36:23 25.4 x 25.7 g' > 18.6, Rc > 18.2, Ic > 17.4 11:16:01 31 March Field 2 6:03:13, +17:01:38 23.4 x 23.6 g' > 17.2, Rc > 16.7, Ic > 16.4 10:58:11 31 March Field 3 6:04:46, +17:00:37 25.5 x 25.8 g' > 18.8, Rc > 18.4, Ic > 17.4 10:55:30 31 March Field 4 6:03:12, +16:13:33 23.6 x 23.8 g' > 17.2, Rc > 16.8, Ic > 16.2 10:37:03 31 March Field 5 6:01:26, +16:36:42 25.7 x 25.8 g' > 18.1, Rc > 16.7, Ic > 16.3 10:35:00 31 March Field 6 6:04:51, +16:13:42 23.6 x 23.8 g' > 16.9, Rc > 16.5, Ic > 16.7 12:01:41 31 March Field 7 6:01:23, +17:01:33 24.1 x 24.6 g' > 17.6, Rc > 17.2, Ic > 16.3 11:57:02 31 March Field 8 6:06:33, +16:37:22 23.3 x 23.7 g' > 17.0, Rc > 16.4, Ic > 16.1 11:40:32 31 March Field 9 6:03:01, +17:24:00 25.3 x 25.8 g' > 18.4, Rc > 17.9, Ic > 17.0 11:36:32 31 March Field 10 6:01:30, +16:13:18 22.6 x 23.8 g' > 17.1, Rc > 16.7, Ic > 16.8 11:19:19 31 March Field 11 6:06:19, +17:01:13 21.8 x 23.6 g' > 18.1, Rc > 17.8, Ic > 16.8 12:58:58 31 March Field 12 6:04:53, +17:25:24 23.6 x 23.6 g' > 16.9, Rc > 16.1, Ic > 16.6 12:44:02 31 March Field 13 6:06:19, +16:13:18 22.9 x 23.9 g' > 18.1, Rc > 17.5, Ic > 16.8 12:38:20 31 March Field 14 6:01:30, +17:25:24 22.9 x 23.7 g' > 17.0, Rc > 16.3, Ic > 16.8 12:22:51 31 March Field 15 6:02:59, +15:49:25 23.8 x 24.4 g' > 17.5, Rc > 17.0, Ic > 16.5 12:17:41 31 March Field 16 5:59:51, +16:37:12 23.2 x 24.1 g' > 15.5, Rc > 15.5, Ic > 15.6 13:47:37 31 March Field 17 6:04:32, +15:48:43 19.7 x 23.0 g' > 16.7, Rc > 16.7, Ic > 16.1 13:40:16 31 March Field 18 5:59:51, +16:37:12 23.2 x 23.7 g' > 16.1, Rc > 15.9, Ic > 16.2 13:26:25 31 March Field 19 6:06:18, +17:25:00 21.2 x 23.4 g' > 17.5, Rc > 16.9, Ic > 16.1 13:19:37 31 March Field 20 6:01:30, +15:49:24 23.2 x 23.7 g' > 16.4, Rc > 16.1, Ic > 16.4 13:05:12 31 March Field 21 5:59:52, +16:13:44 23.4 x 23.8 g' > 16.6, Rc > 16.4, Ic > 16.6 10:24:38 1 April Field 22 6:08:11, +16:37:38 23.6 x 23.7 g' > 16.6, Rc > 16.5, Ic > 16.8 10:45:45 1 April Field 23 6:03:13, +17:49:19 23.5 x 23.7 g' > 15.5, Rc > 15.2, Ic > 15.2 14:08:53 31 March Field 24 6:08:14, +17:01:33 23.3 x 23.7 g' > 16.6, Rc > 16.5, Ic > 16.7 11:06:53 1 April Field 25 6:04:33, +17:48:39 19.1 x 22.7 g' > 17.0, Rc > 17.0, Ic > 16.4 13:51:43 31 March ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- We used GSC2.3 and UCAC4 catalog for flux calibration.