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

[vsnet-grb-info 43730] GRB 260903A: OHP/T193 optical afterglow detection
by GCN Circulars 03 Sep '26

03 Sep '26

TITLE: GCN CIRCULAR NUMBER: 45509 SUBJECT: GRB 260903A: OHP/T193 optical afterglow detection DATE: 26/09/04 01:52:51 GMT FROM: Christophe Adami at LAM <christophe.adami(a)lam.fr> D. Russeil (LAM/Pytheas/AMU), C. Adami (LAM/Pytheas/AMU), E. Le Floc'h (CEA/Irfu), A. Saccardi (CEA/Irfu), F. Schüssler (CEA/DPhP), S. Basa (LAM/OHP/Pytheas/AMU) report on behalf of a larger collaboration: We observed the field of the SVOM/ECLAIRs GRB 260903A (Brunet et al., GCN 45499) using the T193cm telescope at Observatoire de Haute-Provence (France) equipped with the MISTRAL spectro-imager. We obtained 19 exposures of 300s (for a total of 95 min) in the r-band starting at 20260903_223831 UT (observations mid-time at T-To=11h). Target was close to the moon. In the stacked images, we detect the optical counterpart reported and followed by Li et al. (GCN 45504), Saccardi et al. (GCN 45505), and Malesani et al. (GCN 45508). The preliminary magnitude derived for that source is: r’ = 23.0 +/- 0.2 mag (AB) The photometric calibration was performed using nearby stars from the PanSTARRS catalog and the magnitudes are not corrected for Galactic extinction. We used the STDWeb/STDPipe tools (Karpov 2025). We acknowledge the excellent support from the Observatoire de Haute-Provence and in particular S. Favard. View this GCN Circular online at https://gcn.nasa.gov/circulars/45509. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43729] GRB 260903A: NOT optical observations and afterglow fading
by GCN Circulars 03 Sep '26

03 Sep '26

TITLE: GCN CIRCULAR NUMBER: 45508 SUBJECT: GRB 260903A: NOT optical observations and afterglow fading DATE: 26/09/04 00:54:37 GMT FROM: Daniele Bjørn Malesani at Cosmic Dawn Center, Niels Bohr Institute <daniele.malesani(a)nbi.ku.dk> D. B. Malesani (DAWN/NBI), J. An (NAOC), G. Corcoran (UCD), A. Saccardi (CEA/Irfu), F. Mustafaj (NOT), O. Stalder (NOT), report on behalf of a larger collaboration: We observed the optical counterpart (Li et al., GCN 45504; Saccardi et al., GCN 45505) of the SVOM/ECLAIRs GRB 260903A (Brunet et al., GCN 45499) using the Nordic Optical Telescope (NOT) equipped with the ALFOSC camera. A total of 3x300 s observations were secured in the SDSS r band. The optical afterglow is detected in our images. Preliminary photometry against the Pan-STARRS catalog yields a magnitude r = 22.88 +- 0.16 (AB) on 2026 Sep 4.00 UT, that is 11.45 hr after the trigger. Our measurement indicates significant fading compared to previously reported measurements (Li et al., GCN 45504; Saccardi et al., GCN 45505), thus confirming that this object is the afterglow of GRB 260903A. View this GCN Circular online at https://gcn.nasa.gov/circulars/45508. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43728] NuSTAR Transient 260828: SOAR Optical Upper Limits
by GCN Circulars 03 Sep '26

03 Sep '26

TITLE: GCN CIRCULAR NUMBER: 45507 SUBJECT: NuSTAR Transient 260828: SOAR Optical Upper Limits DATE: 26/09/04 00:18:15 GMT FROM: Michael Davis at University of Minnesota <davi4614(a)umn.edu> Michael C. Davis (UMN), James Freeburn (UNC), Tomas Ahumada (NOIRLab), Michael Coughlin (UMN), Akash Anumarlapudi (UNC), Anirudh Salgundi (UNC) report: We observed the field of the fast X-ray transient NuSTAR 260828 (Brightman, GCN 45478) with the 4.1-m Southern Astrophysical Research (SOAR) Telescope at Cerro Pachón, Chile, using the Goodman High-Throughput Spectrograph in imaging mode. Observations consisted of 3 × 300 s exposures in the SDSS r band, reduced using the Goodman Spectroscopic Pipeline (Torres-Robledo et al. 2020). We performed image subtraction using SFFT (Hu et al. 2022) on the stacked image using an archival Pan-STARRS1 stacked image as a reference. We find no new source within the NuSTAR localization down to a 3-sigma limiting magnitude of r > 22.25 (midtime of 2026-09-01 09:57:29 UT, ~3.64 days after the NuSTAR detection). Our nondetection is consistent with the contemporaneous LCO observations reported by Eyles-Ferris et al. (GCN 45488), who obtained r > 22.22 approximately one hour earlier. The upper limit is reported in the AB magnitude system and was calibrated using nearby stars from the Pan-STARRS1 catalog. The magnitude has not been corrected for Galactic extinction. View this GCN Circular online at https://gcn.nasa.gov/circulars/45507. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43727] SVOM GRB260903.53: Global MASTER-Net observations report
by GCN Circulars 03 Sep '26

03 Sep '26

TITLE: GCN CIRCULAR NUMBER: 45506 SUBJECT: SVOM GRB260903.53: Global MASTER-Net observations report DATE: 26/09/03 21:45:45 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov(a)xray.sai.msu.ru> O.Gress, N.Budnev(ISU) V.Lipunov, E.Gorbovskoy, A.Kuznetsov, K.Zhirkov, I.Panchenko, N.Tiurina, P.Balanutsa, V.Topolev, D.Vlasenko, G.Antipov, A.Sankovich, Yu.Tselik, Ya..Kechin, V.Senik, A.Chasovnikov, K.Labsina (Lomonosov MSU) D.Buckley (SAAO), A. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity) A.Sosnovskij (CrAO RAS) A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory) L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory) R.Rebolo (The Instituto de Astrofisica de Canarias) M. Segura, F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA) MASTER-Tunka robotic telescope [1] located in Russia (Applied Physics Institute, Irkutsk State University) was pointed to the SVOM GRB260903.53 (trigger No 1788439007,01h 42m 14.86s , +11d 13m 58.1s, R=0.198) errorbox 7913 sec after notice time and 9200 sec after trigger time at 2026-09-03 15:10:07 UT, with upper limit up to 18.8 mag. The observations began at zenith distance = 70 deg. The sun altitude is -25.7 deg. The galactic latitude b = -49 deg., longitude l = 143 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=3498603 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 9230 | 2026-09-03 15:10:07 | MASTER-Tunka | (01h 39m 56.83s , +10d 45m 37.2s) | C | 60 | 13.9 | 9303 | 2026-09-03 15:11:19 | MASTER-Tunka | (01h 40m 02.09s , +10d 45m 48.3s) | C | 60 | 16.4 | 9379 | 2026-09-03 15:12:35 | MASTER-Tunka | (01h 39m 58.94s , +10d 47m 16.3s) | C | 60 | 16.9 | 9454 | 2026-09-03 15:13:51 | MASTER-Tunka | (01h 39m 59.00s , +10d 45m 42.4s) | C | 60 | 16.0 | 9528 | 2026-09-03 15:15:04 | MASTER-Tunka | (01h 40m 01.06s , +10d 47m 25.9s) | C | 60 | 16.3 | 9603 | 2026-09-03 15:16:19 | MASTER-Tunka | (01h 39m 55.32s , +10d 46m 25.1s) | C | 60 | 16.9 | 9709 | 2026-09-03 15:18:05 | MASTER-Tunka | (01h 39m 55.09s , +10d 47m 22.5s) | C | 60 | 16.9 | 9789 | 2026-09-03 15:19:25 | MASTER-Tunka | (01h 40m 02.37s , +10d 46m 21.1s) | C | 60 | 17.3 | 9867 | 2026-09-03 15:20:43 | MASTER-Tunka | (01h 39m 56.82s , +10d 45m 15.9s) | C | 60 | 16.5 | 9945 | 2026-09-03 15:22:01 | MASTER-Tunka | (01h 40m 01.29s , +10d 45m 27.8s) | C | 60 | 17.6 | 9991 | 2026-09-03 15:22:48 | MASTER-Tunka | (01h 39m 59.00s , +10d 46m 53.3s) | C | 60 | 18.0 | 10064 | 2026-09-03 15:24:01 | MASTER-Tunka | (01h 39m 58.96s , +10d 45m 21.6s) | C | 60 | 17.4 | 10140 | 2026-09-03 15:25:16 | MASTER-Tunka | (01h 40m 02.07s , +10d 47m 05.4s) | C | 60 | 17.2 | 10212 | 2026-09-03 15:26:28 | MASTER-Tunka | (01h 39m 55.16s , +10d 46m 05.9s) | C | 60 | 17.8 | 10285 | 2026-09-03 15:27:41 | MASTER-Tunka | (01h 39m 56.15s , +10d 47m 03.1s) | C | 60 | 17.1 | 10360 | 2026-09-03 15:28:56 | MASTER-Tunka | (01h 40m 02.39s , +10d 46m 01.4s) | C | 60 | 17.6 | 10432 | 2026-09-03 15:30:08 | MASTER-Tunka | (01h 39m 55.93s , +10d 44m 58.5s) | C | 60 | 17.2 | 10504 | 2026-09-03 15:31:21 | MASTER-Tunka | (01h 40m 00.97s , +10d 45m 24.5s) | C | 60 | 17.5 | 10580 | 2026-09-03 15:32:36 | MASTER-Tunka | (01h 39m 58.90s , +10d 46m 27.8s) | C | 60 | 18.3 | 10653 | 2026-09-03 15:33:49 | MASTER-Tunka | (01h 39m 58.86s , +10d 44m 58.2s) | C | 60 | 18.1 | 10725 | 2026-09-03 15:35:01 | MASTER-Tunka | (01h 40m 02.87s , +10d 46m 32.3s) | C | 60 | 17.0 | 10832 | 2026-09-03 15:36:48 | MASTER-Tunka | (01h 39m 55.80s , +10d 45m 47.7s) | C | 60 | 17.4 | 10911 | 2026-09-03 15:38:07 | MASTER-Tunka | (01h 39m 56.49s , +10d 46m 44.1s) | C | 60 | 18.1 | 10956 | 2026-09-03 15:38:53 | MASTER-Tunka | (01h 40m 01.47s , +10d 45m 43.1s) | C | 60 | 18.1 | 11065 | 2026-09-03 15:40:41 | MASTER-Tunka | (01h 39m 55.52s , +10d 44m 39.4s) | C | 60 | 18.2 | 11143 | 2026-09-03 15:41:59 | MASTER-Tunka | (01h 40m 02.63s , +10d 44m 49.8s) | C | 60 | 18.8 | 11221 | 2026-09-03 15:43:17 | MASTER-Tunka | (01h 39m 58.80s , +10d 46m 16.3s) | C | 60 | 18.3 | 11266 | 2026-09-03 15:44:03 | MASTER-Tunka | (01h 39m 58.83s , +10d 44m 53.9s) | C | 60 | 18.1 | 11337 | 2026-09-03 15:45:14 | MASTER-Tunka | (01h 40m 01.35s , +10d 46m 05.4s) | C | 60 | 18.3 | 11412 | 2026-09-03 15:46:28 | MASTER-Tunka | (01h 39m 55.82s , +10d 45m 27.4s) | C | 60 | 18.2 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited. [1] - V.M. Lipunov, V.G. Kornilov, E.S. Gorbovskoy, N.A. Tiurina & A.S.Kuznetsov, 2023, Astronomical Robotic Networks and Operative Multichanel Astrophysics, Lomonosov MSU PRESS, 591pp. http : // www.pereplet.ru/lipunov/625.html View this GCN Circular online at https://gcn.nasa.gov/circulars/45506. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43726] GRB 260903A: LCO optical observations
by GCN Circulars 03 Sep '26

03 Sep '26

TITLE: GCN CIRCULAR NUMBER: 45505 SUBJECT: GRB 260903A: LCO optical observations DATE: 26/09/03 20:50:07 GMT FROM: SVOM_group <svomgroup(a)bao.ac.cn> A. Saccardi (CEA/Irfu), D. B. Malesani (DAWN/NBI and Radboud), M. Pillas (IAP), H. L. Li (NAOC), Y.X. Guan, S.J. Yin (GXU), C. Wu, L.P. Xin (NAOC), Y.Y. Shi (GXU), D. Turpin (CEA/Irfu), R.-C. Chen (NJU), T. Xiao (GXU) report on behalf of the SVOM mission team: Following the report of an optical counterpart (Li et al., GCN 45504) of the SVOM GRB 260903A (Brunet et al., GCN 45499), we inspected again our images taken at the Siding Spring Observatory with the LCO telescope (Guan et al., GCN 45501; Guan et al., GCN 45503). In total, three epochs of observations in the SDSS r filter were secured (the first and the second consisting of 3x200 s exposures while the third of 6x200 s). The optical counterpart is detected in all three epochs, and we measure the following magnitudes (calibrated against the Pan-STARRS catalog and not corrected for Galactic extinction): r = 20.92 +/- 0.19 AB (mid-time 38.66 min after the trigger); r = 20.46 +/- 0.19 AB (mid-time 2.30 hr after the trigger); r = 21.8 +/- 0.4 AB (mid-time 2.74 hr after the trigger). Overall, there is no strong evidence for variability, though the source is only barely detected in our last epoch, suggesting some fading compared to our earlier epochs and to the SVOM/VT measurement (Li et al., GCN 45504). This project is funded by the SVOM collaboration. View this GCN Circular online at https://gcn.nasa.gov/circulars/45505. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43725] GRB 260903A: SVOM/VT optical candidate
by GCN Circulars 03 Sep '26

03 Sep '26

TITLE: GCN CIRCULAR NUMBER: 45504 SUBJECT: GRB 260903A: SVOM/VT optical candidate DATE: 26/09/03 19:00:22 GMT FROM: Huali Li at at NAOC, SVOM <lhl(a)nao.cas.cn> H. L. Li, C. Wu, L. P. Xin, Y. L. Qiu, Y. N. Ma, Z. H. Yao, J. R. Xu, L. S. Chen, X. H. Han, J. Wang, Y. Xu, P. P. Zhang, W. J. Xie, Y. J. Xiao, H. B. Cai, J. S. Deng, J. Y. Wei (NAOC), J. T. Palmerio, A. Saccardi (CEA/Irfu), R.-C. Chen (NJU), T. Xiao (GXU) report on behalf of the SVOM/VT team. SVOM/VT performed ToO observations of GRB 260903A detected by SVOM/ECLAIRs (sb26090302, Brunet et al., GCN 45499). Our observation started on 2026-09-03T14:41:46 UT (about 2.1 hr after the trigger) in the VT_B (400-650 nm) and VT_R (650-1000 nm) channels simultaneously . An uncatalogued optical source compared to the Legacy Survey catalogue was identified in our images within the ECLAIRs localization error circle (Brunet et al., GCN 45499). Its position is R.A., Dec. = 25.662357, 11.370481 degrees: R.A. (J2000) = +01:42:38.96 Dec. (J2000) = +11:22:13.73 with a positional uncertainty of ~0.5 arcsec. The following measurements are in the AB magnitude and are not corrected for Galactic extinction: Mid time | Band | Exposure Time | Brightness 2.18 hr VT_B 11*70 s 21.9 +/- 0.2 mag 2.18 hr VT_R 11*70 s 20.7 +/- 0.1 mag No significant positional or brightness variation of the candidate was detected over our nearly 2‑hour observations. More follow-up observations of this burst are scheduled. 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/45504. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43724] GRB 260903A: Retraction of optical counterpart of GCN 45501
by GCN Circulars 03 Sep '26

03 Sep '26

TITLE: GCN CIRCULAR NUMBER: 45503 SUBJECT: GRB 260903A: Retraction of optical counterpart of GCN 45501 DATE: 26/09/03 17:20:54 GMT FROM: SVOM_group <svomgroup(a)bao.ac.cn> Y.X. Guan(GXU), A. Saccardi (CEA/Irfu), S.J.Yin (GXU), C. Wu, L.P. Xin (NAOC), Yunyu Shi (GXU), D. Turpin (CEA/Irfu), R.-C. Chen (NJU), T. Xiao (GXU) report on behalf of the SVOM mission team: We obtained further imaging of the optical counterpart to GRB 260903A (Brunet et al., GCN 45499) reported in GCN 45501. The source exhibited a positional drift of ~7 arcseconds within ~2 hr. We find that the optical detection is consistent with a known MP object 2000 OQ52, as queried using the IMCCE SkyBot online service (Berthier et al., 2016) via its cone-search API. We apologise for any inconvenience caused. View this GCN Circular online at https://gcn.nasa.gov/circulars/45503. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43723] GRB 260831A: GECAM-B observation
by GCN Circulars 03 Sep '26

03 Sep '26

TITLE: GCN CIRCULAR NUMBER: 45502 SUBJECT: GRB 260831A: GECAM-B observation DATE: 26/09/03 15:12:15 GMT FROM: Jin-Ye Luo <jy_luo2002(a)163.com> Jin-Ye Luo, Chen-Wei Wang, Yue Wang, Chao Zheng, Zheng-Hang Yu, Shao-Lin Xiong (IHEP) report on behalf of GECAM team: GECAM-B was triggered in-flight by GRB 260831A at 2026-08-31T04:09:02.000 UTC (denoted as T0), which is also detected by Fermi/GBM (Fermi GBM team, GCN #45473). According to the GECAM-B light curves in about 70-6000 keV, this burst mainly consists of a single pulse with a duration (T90) of 4 +2/-2 s. The GECAM-B light curve can be found here: https://www.bursthub.cn/gcn/2026/gecambgrb260831A.png Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) mission originally consists of two micro-satellites (GECAM-A and GECAM-B) launched in Dec. 2020. As the third member of GECAM constellation, GECAM-C was launched onboard SATech-01 experimental satellite in July 2022. GECAM mission is funded by the Chinese Academy of Sciences (CAS). View this GCN Circular online at https://gcn.nasa.gov/circulars/45502. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43722] GRB 260903A: LCO optical counterpart detection
by GCN Circulars 03 Sep '26

03 Sep '26

TITLE: GCN CIRCULAR NUMBER: 45501 SUBJECT: GRB 260903A: LCO optical counterpart detection DATE: 26/09/03 15:11:23 GMT FROM: SVOM_group <svomgroup(a)bao.ac.cn> Y.X. Guan(GXU), A. Saccardi (CEA/Irfu), S.J.Yin (GXU), C. Wu, L.P. Xin (NAOC), Yunyu Shi (GXU), D. Turpin (CEA/Irfu), R.-C. Chen (NJU), T. Xiao (GXU) report on behalf of the SVOM mission team: We observed the field of the SVOM/ECLAIRs GRB 260903A (Brunet et al., GCN 45499) with the LCO 1m telescope at Siding Spring Observatory equipped with the Sinistro instrument. Our observation started on 2026-09-03T13:06:41.486 UT (about 29.36 min after the trigger) and we obtained 3x200 s exposures in the SDSS r and 3x200 s exposures in the Pan-STARRS z filters. An uncatalogued optical source compared to DESI DR10 catalogue is clearly detected in our images within the ECLAIRs localization error circle (Brunet et al., GCN 45499). Its position is R.A., Dec. 25.77241, 11.43678 degrees: R.A. (J2000) = 01h43m05.37 Dec. (J2000) = +11d26m12.4 with an uncertainty of ~0.5 arcsec. We measure the following magnitudes calibrated against the DESI DR10 catalog, and not corrected for Galactic extinction: r = 17.91 +/- 0.02 AB (mid-time 38.66 min after the trigger); z = 17.69 +/- 0.13 AB (mid-time 31.01 min after the trigger). This project is funded by the SVOM collaboration. View this GCN Circular online at https://gcn.nasa.gov/circulars/45501. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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[vsnet-grb-info 43721] GRB 260827A: Insight-HXMT/HE detection
by GCN Circulars 03 Sep '26

03 Sep '26

TITLE: GCN CIRCULAR NUMBER: 45500 SUBJECT: GRB 260827A: Insight-HXMT/HE detection DATE: 26/09/03 13:42:27 GMT FROM: yzh807926(a)163.com Zheng-Hang Yu and Shao-Lin Xiong (IHEP) report on behalf of the Insight-HXMT team: At 2026-08-27T10:43:00.600 (T0), Insight-HXMT/HE detected GRB 260827A, which is also detected by Fermi/GBM (Fermi GBM team, GCN #45453), Glowbug (C.C. Cheung et al., GCN #45475), and SVOM/GRM (Yu et al., GCN #45479). The Insight-HXMT/HE light curve mainly consists of multiple pulses with a T90 of 1.6 +1.6/-0.7 s. The 1 s peak rate, measured from T0-0.85 s, is 932 cnts/sec. Insight-HXMT/HE detected a total of 1396 counts from this burst. The Insight-HXMT/HE light curve can be found here: https://www.bursthub.cn/gcn/2026/hxmtgrb260827A.png All measurements above are made with the CsI detectors of Insight-HXMT/HE operating in the Normal mode with the energy range of about 60-900 keV (deposited 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 funded jointly 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 View this GCN Circular online at https://gcn.nasa.gov/circulars/45500. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L…

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