- vsnet-grb-info - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-grb-info 43592] EP260812a: SVOM/C-GFT optical upper limit
by GCN Circulars 13 Aug '26

13 Aug '26

TITLE: GCN CIRCULAR NUMBER: 45372 SUBJECT: EP260812a: SVOM/C-GFT optical upper limit DATE: 26/08/13 06:50:14 GMT FROM: SVOM_group <svomgroup(a)bao.ac.cn> S.J. Yin (GXU), Z. Kang (CHO), Y.X. Guan (GXU), C. Wu (NAOC), L.P. Xin, X.H. Han, P.P. Zhang, X.M. Lu (NAOC), Z.W. Li, Y. Lv (CHO), R.S. Zhang, Y.J. Xiao, Y.L. Qiu, J. Wang, J.S. Deng, L. Huang, J.Y. Wei (NAOC) report on behalf of the SVOM/C-GFT team: We observed the field of EP260812a detected by EP-WXT (Liu et al., GCN 45362) with LATIOS on SVOM/C-GFT. Observations started at 2026-08-12T11:28:12 UTC, ~ 7.2 minutes after the trigger. We obtained r-band follow-up imaging（Poor weather interrupted the observations, affecting image quality）. After preliminary analysis，no credible candidate was detected within the error box provided by EP-WXT (Liu et al., GCN 45362) in our images. We measure the following upper limit calibrated against the Pan-STARRS DR1 catalog, and not corrected for Galactic extinction: r > 18.3 AB (3-sigma, mid-time 27.5 min after the trigger). We thank the observation assistants B.-W. Li and H.-X. Xue at Jilin observatory for their excellent support. The Chinese Ground Follow-up Telescope (C-GFT) for the SVOM mission is located at Jilin Station, Changchun Observatory, National Astronomical Observatories, CAS. It features two instruments: (1) CATCH at the Cassegrain focus with a 21 arcmin x 21 arcmin FOV for simultaneous g/r/i-band imaging, and (2) LATIOS, a 4k x 4k CMOS camera at the prime focus with a 1.28 deg x 1.28 deg FOV that images in g, r, and i bands via filter switching. View this GCN Circular online at https://gcn.nasa.gov/circulars/45372. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43591] EP260812b: COLIBRÍ optical observations
by GCN Circulars 12 Aug '26

12 Aug '26

TITLE: GCN CIRCULAR NUMBER: 45371 SUBJECT: EP260812b: COLIBRÍ optical observations DATE: 26/08/13 05:15:41 GMT FROM: Ramandeep Gill <rsgill.rg(a)gmail.com> Ramandeep Gill (UNAM), Massimiliano Lincetto (CPPM), Noémie Globus (UNAM), Enrique Moreno Méndez (UNAM), Dalya Akl (NYUAD), Rosa L. Becerra (UNAM), Stéphane Basa (UAR Pytheas), William H. Lee (UNAM), Edilberto Aguilar-Ruiz (UNAM), Jean-Luc Atteia (IRAP), Camila Angulo (UNAM), Sarah Antier (IJCLAB), Nathaniel R. Butler (ASU), Damien Dornic (CPPM), Jean-Grégoire Ducoin (CPPM), Francis Fortin (IRAP), Leonardo García García (UNAM), Marion Guelfand (CPPM), Asuka Kuwata (UNAM), Nikos Mandarakas (LAM), Diego López-Cámara (UNAM), Francesco Magnani (CPPM), Margarita Pereyra (UNAM), Ny Avo Rakotondrainibe (LAM), Fredd Sánchez Álvarez (UNAM), Benjamin Schneider (LAM) and Antonio de Ugarte Postigo (LAM) report: We imaged the field of EP260812b (Malesani et al., GCN Circ. 45367; Li et al., GCN Circ. 45368; Ma et al., GCN Circ. 45370) using the DDRAGO two-channel wide-field imager on the COLIBRÍ telescope. We observed from 2026-08-13 04:08 to 04:59 UTC (from 04.55 to 05.40 hours after the trigger) and obtained 38 minutes of simultaneous exposure in the r and z filters. The data were reduced and coadded with the COLIBRÍ ASU pipeline. The photometry was calibrated using nearby stars from the PanSTARRS DR1 catalog, is in the AB system, and is not corrected for Galactic extinction. We clearly detect the optical counterpart reported by Malesani et al., GCN Circ. 45367 at preliminary magnitudes of: r = 21.55 +/- 0.05, z = 21.40 +/- 0.44, consistent with the measurements reported by NOT (Malesani et al., GCN Circ. 45367), SVOM/VT (Ma et al., GCN Circ. 45370). We thank the staff of the Observatorio Astronómico Nacional at Sierra de San Pedro Mártir, as well as the technical and engineering teams at CEA, CPPM, IRAP, LAM, OHP, OSU Pytheas, and UNAM. COLIBRÍ is an astronomical observatory developed and operated jointly by France (AMU, CNES and CNRS) and Mexico (UNAM and SECIHTI). It is located at the Observatorio Astronómico Nacional on the Sierra de San Pedro Mártir, Baja California, Mexico. View this GCN Circular online at https://gcn.nasa.gov/circulars/45371. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43590] EP260812b: SVOM/VT optical observation
by GCN Circulars 12 Aug '26

12 Aug '26

TITLE: GCN CIRCULAR NUMBER: 45370 SUBJECT: EP260812b: SVOM/VT optical observation DATE: 26/08/13 04:09:25 GMT FROM: Yinuo Ma <mayn(a)bao.ac.cn> Y. N. Ma, H. L. Li, Y. L. Qiu, C. Wu, L. P. Xin, Z. H. Yao, J. R. Xu, X. H. Han, Y. Xu, J. Wang, P. P. Zhang, W. J. Xie, Y. J. Xiao, H. B. Cai, J. S. Deng, J. Y. Wei (NAOC), J. Palmerio (CEA) report on behalf of the SVOM/VT team. SVOM/VT performed a Target of Opportunity observation of EP260812b detected by EP/WXT (Li et al., GCN 45368). SVOM/VT began observing the field at 2026-08-13T00:45:07 UTC, 1.157 hours after the trigger, in the VT_B (400nm-650nm) and VT_R (650nm-1000nm) channels simultaneously. With X-band data available, the optical counterpart (Malesani et al., GCN 45367) was detected in both VT_B and VT_R bands within EP/FXT error range (Li et al., GCN 45368). The AB magnitudes are: mid time (h) | exposure time (s) | band | mag (AB) -------------|-------------------|------|-------------- 1.26 | 14*50 | VT_B | 20.98+-0.07 1.26 | 14*50 | VT_R | 20.62+-0.07 Preliminary photometric analysis shows a fading of approximately 0.6 mag from 1.26 h to 2.97 h, with a fading slope of ~0.6. Our photometry was not corrected for Galactic extinction. The Space Variable Objects Monitor (SVOM) is a China-France joint mission led by the Chinese National Space Administration (CNSA, China), National Center for Space Studies (CNES, France) and the Chinese Academy of Sciences (CAS, China), which is dedicated to observing gamma-ray bursts and other transient phenomena in the energetic universe. VT was jointly developed by Xi'an Institute of Optics and Precision Mechanics (XIOPM), CAS and National astronomical observatories (NAOC), CAS. View this GCN Circular online at https://gcn.nasa.gov/circulars/45370. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43589] GRB 260808A: SVOM/GRM observation
by GCN Circulars 12 Aug '26

12 Aug '26

TITLE: GCN CIRCULAR NUMBER: 45369 SUBJECT: GRB 260808A: SVOM/GRM observation DATE: 26/08/13 03:20:24 GMT FROM: Xinghao Luo at IHEP <2952704891(a)qq.com> SVOM/GRM team: Xing-Hao Luo, Chen-Wei Wang, Yue Wang, Jin-Ye Luo, Wen-Jun Tan, Yue Huang, Shi-Jie Zheng, Shao-Lin Xiong, Shuang-Nan Zhang (IHEP) SVOM/ECLAIRs team: Marius Brunet (IRAP) Report on behalf of the SVOM team: SVOM/GRM observed GRB 260808A at 2026-08-08T02:51:45.500 UTC (T0), which is also detected by Fermi/GBM (Fermi GBM team, GCN #45313), NuSTAR (G. Waratkar et.al., GCN#45327) , CGBM (M.L. Cherry et.al., GCN#45347) and GECAM-B (Xing-Hao Luo et.al., GCN#45356). Unfortunately, ECLAIRs was not collecting data at the time of the burst. With the event-by-event data downloaded through the X-band ground station, the GRM light curve shows that this burst consists of multiple pulses with a T90 of 21 +/-2 s in the 15-5000 keV band. The SVOM/GRM light curve can be found here: https://www.bursthub.cn//gcn/2026/svgrb260808A.png In addition, the position of this burst, as determined by Fermi/GBM (RA=341.8 , DEC=14.1, with a statistical uncertainty of 2.2 degrees, Fermi GBM team, GCN #45313), is located at about 21 degrees from the SVOM optical axis, which is inside the ECLAIRs field of view. With this localization, the time-averaged spectrum from T0-5.5 to T0+20.5 s is best fitted by a power law function with an exponential high-energy cutoff. The power law index is -1.16 +0.11/-0.10 and the cutoff energy, parameterized as Epeak, is 194 +45/-30 keV. The event fluence (10-1000keV) in this time interval is (7.74 +0.68/-0.61)E-06 erg/cm^2. The 'Amati' relation diagram of GRB 260808A is shown at: https://www.bursthub.cn//gcn/2026/svgrb260808A_amati.png The Space Variable Objects Monitor (SVOM) is a China-France joint mission led by the Chinese National Space Administration (CNSA, China), National Center for Space Studies (CNES, France) and the Chinese Academy of Sciences (CAS, China), which is dedicated to observing gamma-ray bursts and other transient phenomena in the energetic universe. GRM is developed by the Institute of High Energy Physics (IHEP) of CAS. The SVOM point of contact for this burst is: Xing-Hao Luo (luoxh(a)ihep.ac.cn) View this GCN Circular online at https://gcn.nasa.gov/circulars/45369. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43588] EP260812b: Einstein Probe detection of an X-ray transient
by GCN Circulars 12 Aug '26

12 Aug '26

TITLE: GCN CIRCULAR NUMBER: 45368 SUBJECT: EP260812b: Einstein Probe detection of an X-ray transient DATE: 26/08/13 02:29:37 GMT FROM: EP Team at NAOC/CAS <ep_ta(a)bao.ac.cn> A. Li (BNU), G. L. Huang (IHEP), C. Y. Wang (THU) and W. D. Zhang (NAOC) on behalf of the Einstein Probe (EP) team: We report on the detection of an X-ray transient by the Wide-field X-ray Telescope (WXT) on board the Einstein Probe (EP) mission, designated EP260812b. The transient triggered EP-WXT (ID: 01709278129) at 2026-08-12T23:35:41 (UTC). The WXT position of the source is R.A. = 307.783 deg, DEC = -9.857 deg (J2000) with an uncertainty of 3 arcmin in radius (90% C.L. statistical and systematic). A follow-up observation with the Follow-up X-ray Telescope (FXT) was performed automatically. Within the WXT error circle, an uncatalogued X-ray source was detected at R.A. = 307.7920 deg, DEC = -9.8600 deg (J2000) with an uncertainty of 20 arcsec in radius (90% C.L. statistical and systematic). NOT also detected an possible optical counterpart 6.8 arcsec from FXT location (D. B. Malesani et al. 2026, GCN 45367). Further information will be updated when the telemetry data is received. Launched on January 9, 2024, EP is a space X-ray observatory to monitor the soft X-ray sky with X-ray follow-up capability (Yuan et al. 2022, Handbook of X-ray and Gamma-ray Astrophysics). View this GCN Circular online at https://gcn.nasa.gov/circulars/45368. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43587] EP trigger #01709278129 (EP260812b?): NOT optical counterpart
by GCN Circulars 12 Aug '26

12 Aug '26

TITLE: GCN CIRCULAR NUMBER: 45367 SUBJECT: EP trigger #01709278129 (EP260812b?): NOT optical counterpart DATE: 26/08/13 00:55:59 GMT FROM: Daniele Bjørn Malesani at Cosmic Dawn Center, Niels Bohr Institute <daniele.malesani(a)nbi.ku.dk> D. B. Malesani (DAWN/NBI and Radboud), G. Corcoran (UCD), J. Chacon (PUC), P. G. Jonker (Radboud), V. Vuolteenaho (NOT / University of Oulu), K. Kisielowski (ING / University of Groningen), R. Vieliute (ING / University of St Andrews), report on behalf of a larger collaboration: We observed the field of the EP/WXT trigger #01709278129 (likely EP260812b) with the Nordic Optical Telescope (NOT) equipped with the ALFOSC camera. Several observations were taken in the r filter, starting on 2026 Aug 12.98964 UT, that is 9.4 min after the EP/WXT trigger. Observations were carried out in “rapid-response mode”, with both triggering and observations carried out robotically and with minimal intervention of the telescope operator. In our images, a new object, not visible in the Legacy survey archival images, is detected at coordinates: RA(J2000) = 20:31:10.26 Dec(J2000) = -09:51:42.3 Calibrated against nearby stars from the Pan-STARRS catalog, we measure for this target preliminary magnitudes (not corrected for Galactic extinction): r = 20.56 +- 0.03 (t_mean = 10.9 min after trigger); r = 20.26 +- 0.03 (t_mean = 24.7 min after trigger). This source is thus observed to rebrighten over the course of our observations. This variability, coupled with the lack of any counterpart in deeper archival imaging, suggest that this is in fact the afterglow of the EP trigger #01709278129. Further observations are encouraged. View this GCN Circular online at https://gcn.nasa.gov/circulars/45367. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43586] Fermi GBM Sub-Threshold Detection of GRB 260809A
by GCN Circulars 12 Aug '26

12 Aug '26

TITLE: GCN CIRCULAR NUMBER: 45366 SUBJECT: Fermi GBM Sub-Threshold Detection of GRB 260809A DATE: 26/08/12 19:55:21 GMT FROM: Bagrat Mailyan at Florida Tech <mbagrat(a)gmail.com> B. Mailyan (Florida Tech) reports on behalf of the Fermi-GBM Team: The SVOM/ECLAIRs detected GRB 260809A on 2026-08-09 at 14:57:33 UTC (Brunet et al. 2026, GCN 45331). There was no Fermi-GBM onboard trigger around this event time. An automated, blind search for gamma-ray bursts below the onboard triggering threshold in Fermi-GBM identified three candidates. The GBM Targeted Search [1], the most sensitive coherent search for GRB-like signals in GBM, identified a transient starting approximately 12 s after the ECLAIRs best image SNR time of 2026-08-09T14:57:13 UTC. The Targeted Search candidate was found most significantly on the 32 s timescale, with a false alarm rate of 1.6e-04 Hz. The Fermi-MET of the start time of this transient is 807980250.351 s. The Targeted Search localization is found to be spatially consistent with the ECLAIRs localization, with a spatial association probability of 95.8%. Additionally, the GBM Targeted Search event was found with the highest significance using a "normal" spectrum (Band function with Epeak = 230 keV, alpha = -1.0, beta = -2.3) for a GRB. The Targeted Search data release product for this event can be found here: https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/targeted_search/trigger_rep… [1] Goldstein et al. 2019, arXiv:1903.12597 View this GCN Circular online at https://gcn.nasa.gov/circulars/45366. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43585] GRB 260810A: Glowbug gamma-ray detection
by GCN Circulars 12 Aug '26

12 Aug '26

TITLE: GCN CIRCULAR NUMBER: 45365 SUBJECT: GRB 260810A: Glowbug gamma-ray detection DATE: 26/08/12 19:05:46 GMT FROM: C.C. Cheung at Naval Research Lab <Teddy.Cheung(a)nrl.navy.mil> C.C. Cheung, R. Woolf, M. Kerr, J.E. Grove (NRL), A. Goldstein (USRA), C.A. Wilson-Hodge, D. Kocevski (MSFC), and M.S. Briggs (UAH) report: The Glowbug gamma-ray telescope [1,2,3], operating on the International Space Station, reports the detection of GRB 260810A, which was also detected by AstroSat (GCN 45363). Using an adaptive window with a resolution of 32-ms, the burst onset is determined to be 2026-08-10 19:09:41.760 with a duration of 19.5 s and a total significance of about 178 sigma. The light curve comprises a multi-peaked structure with maxima at ~T0+1s and ~T0+9.5s. The analysis results presented here are preliminary and use a response function that lacks a detailed characterization of the surrounding passive structure of the ISS. Glowbug is a NASA-funded technology demonstrator for sensitive, low-cost gamma-ray transient telescopes developed, built, and operated by the U.S. Naval Research Laboratory (NRL) with support from the University of Alabama in Huntsville, USRA, and NASA MSFC. It was launched on 2023 March 15 aboard the Department of Defense Space Test Program’s STP-H9 to the ISS and operated until 2024 April when it was put in safe storage on orbit. Glowbug was removed from storage and resumed operation on 2025 September 12. [1] Grove, J.E. et al. 2020, Proc. Yamada Conf. LXXI, arXiv:2009.11959 [2] Woolf, R.S. et al. 2022, Proc. SPIE, 12181, id. 121811O [3] Woolf, R.S. et al. 2024, Proc. SPIE, 13151, id. 1315108 Distribution Statement A: Approved for public release. Distribution is unlimited. View this GCN Circular online at https://gcn.nasa.gov/circulars/45365. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43584] GRB 260808B: SVOM/COLIBRÍ (FM-GFT) confirmation of the optical rebrightening
by GCN Circulars 12 Aug '26

12 Aug '26

TITLE: GCN CIRCULAR NUMBER: 45364 SUBJECT: GRB 260808B: SVOM/COLIBRÍ (FM-GFT) confirmation of the optical rebrightening DATE: 26/08/12 15:30:21 GMT FROM: Marion G <marion.guelfand(a)gmail.com> Marion Guelfand (CPPM), Fredd Sánchez Álvarez (UNAM), Noémie Globus (UNAM), Stéphane Basa (UAR Pytheas), William H. Lee (UNAM), Edilberto Aguilar-Ruiz (UNAM), Jean-Luc Atteia (IRAP), Camila Angulo (UNAM), Dalya Akl (NYUAD), Sarah Antier (IJCLAB), Rosa L. Becerra (UNAM), Nathaniel R. Butler (ASU), Damien Dornic (CPPM), Jean-Grégoire Ducoin (CPPM), Francis Fortin (IRAP), Leonardo García-García (UNAM), Ramandeep Gill (UNAM), Asuka Kuwata (UNAM), Massimiliano Lincetto (CPPM), Nikos Mandarakas (LAM), Diego López-Cámara (UNAM), Francesco Magnani (CPPM), Enrique Moreno Méndez (UNAM), Margarita Pereyra (UNAM), Benjamin Schneider (LAM), Antonio de Ugarte Postigo (LAM), Alan M. Watson (UNAM) and Michela Maria Dinatolo (U. Milano) report: We continued imaging the field of the SVOM GRB 260808B (Bouchet et al., GCN 45316) using the DDRAGO wide-field imager on the SVOM/COLIBRÍ (FM-GFT) telescope. We observed from 2026-08-12 09:54:12 to 10:07:40 UTC (from 91.5 to 91.8 hours after the trigger) and obtained 720 seconds of simultaneous exposure in the r and z filters. The data were reduced, coadded and analyzed with the ASU COLIBRÍ pipeline. The photometry was calibrated using nearby stars from the PanSTARRS DR1r catalog, is in the AB system, and is not corrected for Galactic extinction. Compared to our previous observation (Basa et al., GCN 45341), where we measured z = 22.21 ± 0.08 at 40.6–42.4 hours after the trigger, we find that the optical counterpart (Turpin et al., GCN 45318; Li et al., GCN 45320; Saccardi et al., GCN 45328; Schneider et al., GCN 45329; Bochenek et al., GCN 45330) has significantly rebrightened, as also reported by Li et al. (GCN 45359). We measure the following preliminary magnitudes: r = 21.68 ± 0.04, z = 21.36 ± 0.11. Further observations are planned. We thank the staff of the Observatorio Astronómico Nacional at Sierra de San Pedro Mártir, as well as the technical and engineering teams at CEA, CPPM, IRAP, LAM, OHP, OSU Pytheas, and UNAM. COLIBRÍ is an astronomical observatory developed and operated jointly by France (AMU, CNES and CNRS) and Mexico (UNAM and SECIHTI). It is located at the Observatorio Astronómico Nacional on the Sierra de San Pedro Mártir, Baja California, Mexico. View this GCN Circular online at https://gcn.nasa.gov/circulars/45364. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43583] GRB 260810A: AstroSat CZTI detection of a long burst
by GCN Circulars 12 Aug '26

12 Aug '26

TITLE: GCN CIRCULAR NUMBER: 45363 SUBJECT: GRB 260810A: AstroSat CZTI detection of a long burst DATE: 26/08/12 14:03:40 GMT FROM: Anuraag Arya at IIT Bombay <aryaanuraag910(a)gmail.com> A. Arya (IITB), A. Goyal (IITB), S.Salunke (IUCAA), Harsha K. H. (IUCAA), G. Waratkar (Caltech/IITB), A. Vibhute (IUCAA), V. Bhalerao (IITB), D. Bhattacharya (Ashoka University/IUCAA), A. R. Rao (IUCAA/TIFR), and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration: Analysis of AstroSat CZTI data with the CIFT framework (Sharma et al., 2021, JApA, 42, 73) showed the detection of GRB 260810A. The source was clearly detected in the CZT detectors in the 20-200 keV energy range. The light curve showed multiple peaks of emission with the strongest peak at 2026-08-10 19:09:52.63 UTC. The measured peak count rate associated with the burst is 762 (+50, -55) counts/s above the background in the combined data of three quadrants (out of four), with a total of 3869 (+166, -185) counts. The local mean background count rate was 263 (+3, -3) counts/s. We measure a T90 of 13 (+1 , -2) s from the cumulative CZT light curve. The source was also clearly detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range. The light curve showed multiple peaks of emission with the strongest peak at 2026-08-10 19:09:44.03 UTC. The measured peak count rate associated with the burst is 1664 (+74, -88) counts/s above the background in the combined data of all quadrants, with a total of 7362 (+234, -330) counts. The local mean background count rate was 780 (+5, -4) counts/s. We measure a T90 of 12 (+1, -1) s from the cumulative Veto light curve. CZTI data products like interactive and downloadable light curves for this GRB can be found at: https://astrosat.iucaa.in/cift/cift_products/524084975.53/S524084975.53_det… CZTI is built by a TIFR-led consortium of institutes across India, including VSSC, URSC, IUCAA, SAC, and PRL. The Indian Space Research Organisation funded, managed, and facilitated the project. CZTI GRB detections are reported regularly on the payload site at: http://astrosat.iucaa.in/czti/?q=grb View this GCN Circular online at https://gcn.nasa.gov/circulars/45363. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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