September 2021 - vsnet-grb-info - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-grb-info 28710] Fermi trigger No 653072474: Global MASTER-Net observations report
by GCN Circulars 11 Sep '21

11 Sep '21

TITLE: GCN CIRCULAR NUMBER: 30813 SUBJECT: Fermi trigger No 653072474: Global MASTER-Net observations report DATE: 21/09/11 17:16:31 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov(a)xray.sai.msu.ru> V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) MASTER-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB210911.71 (trigger No 653072474,19h 32m 21.60s , +15d 41m 24.0s, R=1.16) errorbox 33 sec after trigger time at 2021-09-11 17:01:43 UT, with upper limit up to 16.5 mag. Observations started at twilight. The observations began at zenith distance = 29 deg. The sun altitude is -11.5 deg. The galactic latitude b = -2 deg., longitude l = 52 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1717728 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 39 | 2021-09-11 17:01:43 | MASTER-Tavrida | (19h 22m 56.19s , +15d 57m 57.5s) | C | 10 | 12.9 | 68 | 2021-09-11 17:02:12 | MASTER-Tavrida | (19h 22m 52.77s , +15d 59m 30.8s) | C | 10 | 13.0 | 102 | 2021-09-11 17:02:41 | MASTER-Tavrida | (19h 30m 01.45s , +15d 40m 57.4s) | P\ | 20 | 12.5 | 141 | 2021-09-11 17:03:20 | MASTER-Tavrida | (19h 30m 04.18s , +15d 42m 26.2s) | P\ | 20 | 12.3 | 237 | 2021-09-11 17:04:46 | MASTER-Tavrida | (19h 29m 59.60s , +15d 42m 33.7s) | P\ | 40 | 15.4 | 297 | 2021-09-11 17:04:46 | MASTER-Tavrida | (19h 29m 59.61s , +15d 42m 33.6s) | P\ | 160 | 16.3 | Coadd 301 | 2021-09-11 17:05:45 | MASTER-Tavrida | (19h 30m 04.14s , +15d 41m 30.9s) | P\ | 50 | 15.7 | 380 | 2021-09-11 17:06:54 | MASTER-Tavrida | (19h 29m 59.44s , +15d 40m 26.8s) | P\ | 70 | 16.3 | 479 | 2021-09-11 17:08:23 | MASTER-Tavrida | (19h 30m 06.28s , +15d 40m 44.3s) | P\ | 90 | 16.5 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.

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[vsnet-grb-info 28709] Fermi trigger No 653071808: Global MASTER-Net observations report
by GCN Circulars 11 Sep '21

11 Sep '21

TITLE: GCN CIRCULAR NUMBER: 30812 SUBJECT: Fermi trigger No 653071808: Global MASTER-Net observations report DATE: 21/09/11 17:16:20 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov(a)xray.sai.msu.ru> V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) MASTER-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB210911.70 (trigger No 653071808,19h 38m 19.20s , +34d 42m 36.0s, R=5.75) errorbox 507 sec after notice time and 620 sec after trigger time at 2021-09-11 17:00:24 UT, with upper limit up to 17.0 mag. Observations started at twilight. The observations began at zenith distance = 13 deg. The sun altitude is -11.2 deg. The galactic latitude b = 6 deg., longitude l = 69 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1717694 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 651 | 2021-09-11 17:00:24 | MASTER-Tavrida | (19h 31m 32.18s , +35d 14m 09.2s) | C | 60 | 17.0 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.

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[vsnet-grb-info 28708] Fermi trigger No 653054042: Global MASTER-Net observations report
by GCN Circulars 11 Sep '21

11 Sep '21

TITLE: GCN CIRCULAR NUMBER: 30811 SUBJECT: Fermi trigger No 653054042: Global MASTER-Net observations report DATE: 21/09/11 17:16:03 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov(a)xray.sai.msu.ru> V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) MASTER-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB210911.50 (trigger No 653054042,18h 33m 36.00s , +05d 55m 01.2s, R=27.42) errorbox 18426 sec after notice time and 18466 sec after trigger time at 2021-09-11 17:01:43 UT, with upper limit up to 16.5 mag. Observations started at twilight. The observations began at zenith distance = 29 deg. The sun altitude is -11.5 deg. The galactic latitude b = 6 deg., longitude l = 37 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1717465 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 18471 | 2021-09-11 17:01:43 | MASTER-Tavrida | (19h 22m 56.19s , +15d 57m 57.5s) | C | 10 | 12.9 | 18500 | 2021-09-11 17:02:12 | MASTER-Tavrida | (19h 22m 52.77s , +15d 59m 30.8s) | C | 10 | 13.0 | 18534 | 2021-09-11 17:02:41 | MASTER-Tavrida | (19h 30m 01.45s , +15d 40m 57.4s) | P\ | 20 | 12.5 | 18574 | 2021-09-11 17:03:20 | MASTER-Tavrida | (19h 30m 04.18s , +15d 42m 26.2s) | P\ | 20 | 12.3 | 18669 | 2021-09-11 17:04:46 | MASTER-Tavrida | (19h 29m 59.60s , +15d 42m 33.7s) | P\ | 40 | 15.4 | 18729 | 2021-09-11 17:04:46 | MASTER-Tavrida | (19h 29m 59.61s , +15d 42m 33.6s) | P\ | 160 | 16.3 | Coadd 18733 | 2021-09-11 17:05:45 | MASTER-Tavrida | (19h 30m 04.14s , +15d 41m 30.9s) | P\ | 50 | 15.7 | 18812 | 2021-09-11 17:06:54 | MASTER-Tavrida | (19h 29m 59.44s , +15d 40m 26.8s) | P\ | 70 | 16.3 | 18912 | 2021-09-11 17:08:23 | MASTER-Tavrida | (19h 30m 06.28s , +15d 40m 44.3s) | P\ | 90 | 16.5 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.

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[vsnet-grb-info 28707] Fermi trigger No 653049776: Global MASTER-Net observations report
by GCN Circulars 11 Sep '21

11 Sep '21

TITLE: GCN CIRCULAR NUMBER: 30810 SUBJECT: Fermi trigger No 653049776: Global MASTER-Net observations report DATE: 21/09/11 17:15:48 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov(a)xray.sai.msu.ru> V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) MASTER-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB210911.45 (trigger No 653049776,18h 00m 31.92s , +20d 28m 01.2s, R=27.87) errorbox 22615 sec after notice time and 22652 sec after trigger time at 2021-09-11 17:00:24 UT, with upper limit up to 17.0 mag. Observations started at twilight. The observations began at zenith distance = 13 deg. The sun altitude is -11.2 deg. The galactic latitude b = 20 deg., longitude l = 47 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1717406 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 22683 | 2021-09-11 17:00:24 | MASTER-Tavrida | (19h 31m 32.18s , +35d 14m 09.2s) | C | 60 | 17.0 | 22737 | 2021-09-11 17:01:43 | MASTER-Tavrida | (19h 22m 56.19s , +15d 57m 57.5s) | C | 10 | 12.9 | 22766 | 2021-09-11 17:02:12 | MASTER-Tavrida | (19h 22m 52.77s , +15d 59m 30.8s) | C | 10 | 13.0 | 22800 | 2021-09-11 17:02:41 | MASTER-Tavrida | (19h 30m 01.45s , +15d 40m 57.4s) | P\ | 20 | 12.5 | 22839 | 2021-09-11 17:03:20 | MASTER-Tavrida | (19h 30m 04.18s , +15d 42m 26.2s) | P\ | 20 | 12.3 | 22935 | 2021-09-11 17:04:46 | MASTER-Tavrida | (19h 29m 59.60s , +15d 42m 33.7s) | P\ | 40 | 15.4 | 22995 | 2021-09-11 17:04:46 | MASTER-Tavrida | (19h 29m 59.61s , +15d 42m 33.6s) | P\ | 160 | 16.3 | Coadd 22999 | 2021-09-11 17:05:45 | MASTER-Tavrida | (19h 30m 04.14s , +15d 41m 30.9s) | P\ | 50 | 15.7 | 23078 | 2021-09-11 17:06:54 | MASTER-Tavrida | (19h 29m 59.44s , +15d 40m 26.8s) | P\ | 70 | 16.3 | 23177 | 2021-09-11 17:08:23 | MASTER-Tavrida | (19h 30m 06.28s , +15d 40m 44.3s) | P\ | 90 | 16.5 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.

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[vsnet-grb-info 28706] Fermi trigger No 653022153: Global MASTER-Net observations report
by GCN Circulars 11 Sep '21

11 Sep '21

TITLE: GCN CIRCULAR NUMBER: 30809 SUBJECT: Fermi trigger No 653022153: Global MASTER-Net observations report DATE: 21/09/11 11:15:56 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov(a)xray.sai.msu.ru> V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) MASTER-OAFA robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Argentina (OAFA observatory of San Juan National University) started inspect of the Fermi GRB210911.13 (trigger No 653022153,19h 44m 45.60s , +15d 11m 24.0s, R=32.09) errorbox 1031 sec after notice time and 1060 sec after trigger time at 2021-09-11 03:20:08 UT, with upper limit up to 18.4 mag. The observations began at zenith distance = 50 deg. The sun altitude is -58.7 deg. The galactic latitude b = -5 deg., longitude l = 53 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1717060 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 1090 | 2021-09-11 03:20:08 | MASTER-OAFA | (19h 37m 06.45s , +04d 15m 10.7s) | C | 60 | 17.4 | 1169 | 2021-09-11 03:21:27 | MASTER-OAFA | (19h 23m 02.46s , +08d 02m 31.8s) | C | 60 | 16.5 | 1252 | 2021-09-11 03:22:50 | MASTER-OAFA | (19h 31m 14.93s , +08d 02m 41.7s) | C | 60 | 16.4 | 1336 | 2021-09-11 03:24:13 | MASTER-OAFA | (19h 47m 17.23s , +13d 44m 25.8s) | C | 60 | 17.1 | 1415 | 2021-09-11 03:25:33 | MASTER-OAFA | (19h 55m 35.82s , +13d 45m 29.2s) | C | 60 | 17.7 | 1495 | 2021-09-11 03:26:53 | MASTER-OAFA | (19h 55m 08.51s , +00d 27m 42.4s) | C | 60 | 17.9 | 1574 | 2021-09-11 03:28:12 | MASTER-OAFA | (20h 03m 14.49s , +00d 26m 30.8s) | C | 60 | 17.8 | 1654 | 2021-09-11 03:29:32 | MASTER-OAFA | (19h 40m 01.92s , +00d 26m 25.8s) | C | 60 | 17.6 | 1733 | 2021-09-11 03:30:51 | MASTER-OAFA | (19h 47m 59.31s , +00d 27m 41.8s) | C | 60 | 17.7 | 1813 | 2021-09-11 03:32:10 | MASTER-OAFA | (19h 26m 17.36s , +02d 22m 06.0s) | C | 60 | 17.0 | 1894 | 2021-09-11 03:33:32 | MASTER-OAFA | (19h 34m 11.89s , +02d 21m 09.1s) | C | 60 | 17.3 | 1976 | 2021-09-11 03:34:54 | MASTER-OAFA | (19h 31m 39.00s , +13d 45m 16.2s) | C | 60 | 17.3 | 2059 | 2021-09-11 03:36:17 | MASTER-OAFA | (19h 39m 47.93s , +13d 44m 06.5s) | C | 60 | 17.1 | 2140 | 2021-09-11 03:37:38 | MASTER-OAFA | (19h 23m 08.53s , +08d 02m 52.4s) | C | 60 | 16.5 | 2220 | 2021-09-11 03:38:58 | MASTER-OAFA | (19h 31m 10.66s , +08d 03m 53.6s) | C | 60 | 16.4 | 2300 | 2021-09-11 03:40:17 | MASTER-OAFA | (19h 47m 16.80s , +13d 44m 11.7s) | C | 60 | 17.1 | 2379 | 2021-09-11 03:41:37 | MASTER-OAFA | (19h 55m 35.78s , +13d 45m 23.0s) | C | 60 | 17.7 | 2459 | 2021-09-11 03:42:56 | MASTER-OAFA | (19h 55m 07.96s , +00d 26m 38.1s) | C | 60 | 17.8 | 2538 | 2021-09-11 03:44:16 | MASTER-OAFA | (20h 03m 08.96s , +00d 27m 26.8s) | C | 60 | 17.9 | 2618 | 2021-09-11 03:45:36 | MASTER-OAFA | (19h 40m 02.42s , +00d 26m 57.3s) | C | 60 | 17.6 | 2698 | 2021-09-11 03:46:56 | MASTER-OAFA | (19h 47m 55.88s , +00d 25m 45.9s) | C | 60 | 17.7 | 2778 | 2021-09-11 03:48:15 | MASTER-OAFA | (19h 26m 16.64s , +02d 20m 17.3s) | C | 60 | 17.0 | 2859 | 2021-09-11 03:49:37 | MASTER-OAFA | (19h 34m 15.20s , +02d 21m 55.4s) | C | 60 | 17.3 | 2938 | 2021-09-11 03:50:56 | MASTER-OAFA | (19h 31m 34.46s , +13d 44m 36.2s) | C | 60 | 17.3 | 3020 | 2021-09-11 03:52:18 | MASTER-OAFA | (19h 39m 52.46s , +13d 45m 44.1s) | C | 60 | 17.1 | 3100 | 2021-09-11 03:53:38 | MASTER-OAFA | (20h 08m 54.84s , +11d 51m 25.2s) | C | 60 | 17.8 | 3181 | 2021-09-11 03:54:59 | MASTER-OAFA | (20h 17m 12.37s , +11d 50m 15.1s) | C | 60 | 18.0 | 3263 | 2021-09-11 03:56:21 | MASTER-OAFA | (19h 47m 13.78s , +13d 43m 49.3s) | C | 60 | 17.1 | 3343 | 2021-09-11 03:57:41 | MASTER-OAFA | (19h 55m 36.07s , +13d 43m 54.6s) | C | 60 | 17.6 | 3422 | 2021-09-11 03:59:00 | MASTER-OAFA | (19h 55m 11.43s , +00d 27m 10.4s) | C | 60 | 17.8 | 3502 | 2021-09-11 04:00:19 | MASTER-OAFA | (20h 03m 11.36s , +00d 25m 52.5s) | C | 60 | 17.9 | 3581 | 2021-09-11 04:01:39 | MASTER-OAFA | (19h 40m 01.41s , +00d 27m 47.3s) | C | 60 | 17.6 | 3661 | 2021-09-11 04:02:58 | MASTER-OAFA | (19h 47m 56.79s , +00d 26m 42.0s) | C | 60 | 17.7 | 3740 | 2021-09-11 04:04:18 | MASTER-OAFA | (19h 26m 10.47s , +02d 22m 13.1s) | C | 60 | 17.0 | 3820 | 2021-09-11 04:05:38 | MASTER-OAFA | (19h 34m 18.10s , +02d 21m 00.3s) | C | 60 | 17.3 | 3900 | 2021-09-11 04:06:58 | MASTER-OAFA | (19h 31m 30.07s , +13d 43m 57.0s) | C | 60 | 17.3 | 3979 | 2021-09-11 04:08:17 | MASTER-OAFA | (19h 39m 53.14s , +13d 43m 59.1s) | C | 60 | 17.0 | 8220 | 2021-09-11 05:18:58 | MASTER-OAFA | (20h 10m 24.10s , +00d 25m 23.9s) | C | 60 | 18.0 | 8300 | 2021-09-11 05:20:18 | MASTER-OAFA | (20h 18m 21.30s , +00d 26m 42.8s) | C | 60 | 18.2 | 8379 | 2021-09-11 05:21:37 | MASTER-OAFA | (20h 27m 06.14s , +02d 18m 36.9s) | C | 60 | 17.6 | 8461 | 2021-09-11 05:22:59 | MASTER-OAFA | (20h 35m 10.14s , +02d 20m 10.6s) | C | 60 | 18.0 | 8541 | 2021-09-11 05:24:19 | MASTER-OAFA | (20h 25m 29.68s , +00d 25m 32.8s) | C | 60 | 18.4 | 8620 | 2021-09-11 05:25:38 | MASTER-OAFA | (20h 33m 30.10s , +00d 26m 22.0s) | C | 60 | 18.2 | 8700 | 2021-09-11 05:26:58 | MASTER-OAFA | (20h 11m 56.08s , +02d 19m 46.6s) | C | 60 | 17.6 | 8779 | 2021-09-11 05:28:17 | MASTER-OAFA | (20h 19m 49.33s , +02d 18m 35.9s) | C | 60 | 18.1 | 8861 | 2021-09-11 05:29:39 | MASTER-OAFA | (20h 31m 34.58s , +09d 56m 07.2s) | C | 60 | 17.8 | 8945 | 2021-09-11 05:31:02 | MASTER-OAFA | (20h 39m 43.21s , +09d 54m 04.1s) | C | 60 | 18.1 | 9024 | 2021-09-11 05:32:22 | MASTER-OAFA | (20h 19m 00.03s , +06d 08m 13.6s) | C | 60 | 17.3 | 9106 | 2021-09-11 05:33:44 | MASTER-OAFA | (20h 26m 57.97s , +06d 07m 21.0s) | C | 60 | 17.6 | 9225 | 2021-09-11 05:35:58 | MASTER-OAFA | (19h 29m 27.70s , +12d 47m 25.6s) | C | 30 | 15.1 | 9280 | 2021-09-11 05:36:48 | MASTER-OAFA | (19h 29m 21.22s , +12d 46m 29.5s) | C | 40 | 15.3 | 9350 | 2021-09-11 05:37:48 | MASTER-OAFA | (19h 29m 27.35s , +12d 46m 58.3s) | C | 60 | 15.5 | 9434 | 2021-09-11 05:39:07 | MASTER-OAFA | (19h 29m 23.11s , +12d 48m 31.7s) | C | 70 | 15.8 | 9519 | 2021-09-11 05:40:37 | MASTER-OAFA | (20h 10m 19.75s , +01d 48m 00.6s) | C | 60 | 17.5 | 9598 | 2021-09-11 05:41:56 | MASTER-OAFA | (20h 18m 22.90s , +01d 49m 35.8s) | C | 60 | 17.9 | 9678 | 2021-09-11 05:43:15 | MASTER-OAFA | (20h 27m 00.99s , +03d 42m 29.5s) | C | 60 | 17.9 | 9757 | 2021-09-11 05:44:35 | MASTER-OAFA | (20h 35m 02.70s , +03d 43m 19.9s) | C | 60 | 18.2 | 9836 | 2021-09-11 05:45:54 | MASTER-OAFA | (20h 25m 34.77s , +01d 48m 31.1s) | C | 60 | 18.1 | 10552 | 2021-09-11 05:57:50 | MASTER-OAFA | (19h 34m 10.03s , -00d 04m 32.1s) | C | 60 | 16.5 | 11829 | 2021-09-11 06:19:06 | MASTER-OAFA | (20h 32m 35.40s , +09d 23m 32.9s) | C | 60 | 17.4 | 11908 | 2021-09-11 06:20:26 | MASTER-OAFA | (20h 24m 27.65s , +13d 13m 39.2s) | C | 60 | 17.0 | 11988 | 2021-09-11 06:21:45 | MASTER-OAFA | (20h 32m 33.05s , +13d 12m 34.9s) | C | 60 | 17.5 | 12274 | 2021-09-11 06:26:32 | MASTER-OAFA | (20h 29m 59.28s , +05d 35m 18.7s) | C | 60 | 17.6 | 12354 | 2021-09-11 06:27:52 | MASTER-OAFA | (20h 37m 58.19s , +05d 36m 54.3s) | C | 60 | 18.0 | 12433 | 2021-09-11 06:29:11 | MASTER-OAFA | (20h 39m 49.60s , +09d 24m 11.2s) | C | 60 | 17.7 | 12513 | 2021-09-11 06:30:31 | MASTER-OAFA | (20h 47m 56.12s , +09d 25m 02.9s) | C | 60 | 17.8 | 12598 | 2021-09-11 06:31:56 | MASTER-OAFA | (20h 34m 09.04s , +07d 29m 15.4s) | C | 60 | 17.6 | 12678 | 2021-09-11 06:33:16 | MASTER-OAFA | (20h 42m 19.66s , +07d 29m 29.1s) | C | 60 | 17.7 | 12758 | 2021-09-11 06:34:35 | MASTER-OAFA | (20h 32m 34.57s , +09d 23m 29.8s) | C | 60 | 17.2 | 13244 | 2021-09-11 06:42:42 | MASTER-OAFA | (20h 29m 51.88s , +05d 35m 12.5s) | C | 60 | 17.3 | 13324 | 2021-09-11 06:44:02 | MASTER-OAFA | (20h 37m 59.48s , +05d 35m 04.8s) | C | 60 | 17.6 | 13403 | 2021-09-11 06:45:21 | MASTER-OAFA | (20h 39m 51.87s , +09d 24m 49.8s) | C | 60 | 17.1 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.

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[vsnet-grb-info 28705] Fermi trigger No 653031163: Global MASTER-Net observations report
by GCN Circulars 11 Sep '21

11 Sep '21

TITLE: GCN CIRCULAR NUMBER: 30808 SUBJECT: Fermi trigger No 653031163: Global MASTER-Net observations report DATE: 21/09/11 06:15:39 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov(a)xray.sai.msu.ru> V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) MASTER-OAFA robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Argentina (OAFA observatory of San Juan National University) started inspect of the Fermi GRB210911.23 (trigger No 653031163,19h 31m 19.20s , +12d 09m 36.0s, R=4.94) errorbox 159 sec after notice time and 200 sec after trigger time at 2021-09-11 05:35:58 UT, with upper limit up to 15.8 mag. The observations began at zenith distance = 83 deg. The sun altitude is -59.5 deg. The galactic latitude b = -4 deg., longitude l = 49 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1717161 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 215 | 2021-09-11 05:35:58 | MASTER-OAFA | (19h 29m 27.70s , +12d 47m 25.6s) | C | 30 | 15.1 | 270 | 2021-09-11 05:36:48 | MASTER-OAFA | (19h 29m 21.22s , +12d 46m 29.5s) | C | 40 | 15.3 | 339 | 2021-09-11 05:37:48 | MASTER-OAFA | (19h 29m 27.35s , +12d 46m 58.3s) | C | 60 | 15.5 | 424 | 2021-09-11 05:39:07 | MASTER-OAFA | (19h 29m 23.11s , +12d 48m 31.7s) | C | 70 | 15.8 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.

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[vsnet-grb-info 28704] Swift GRB210910.42: Global MASTER-Net observations report
by GCN Circulars 11 Sep '21

11 Sep '21

TITLE: GCN CIRCULAR NUMBER: 30807 SUBJECT: Swift GRB210910.42: Global MASTER-Net observations report DATE: 21/09/11 01:16:27 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov(a)xray.sai.msu.ru> V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) MASTER-OAFA robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Argentina (OAFA observatory of San Juan National University) was pointed to the Swift GRB210910.42 (trigger No 1072706,15h 55m 05.47s , -54d 03m 16.6s, R=0.05) errorbox 50906 sec after notice time and 50940 sec after trigger time at 2021-09-11 00:20:55 UT, with upper limit up to 15.3 mag. The observations began at zenith distance = 41 deg. The sun altitude is -25.7 deg. The galactic latitude b = -1 deg., longitude l = 328 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1716320 We obtain a following upper limits. Tmid-T0 | Site |Filt.| Expt. | Limit| Comment _________|_____________________|_____|_______|______|________ 51030 | MASTER-OAFA | C | 180 | 15.3 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.

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[vsnet-grb-info 28703] Fermi GBM observation of a bright flare in the direction of SGR 1935+2154
by GCN Circulars 11 Sep '21

11 Sep '21

TITLE: GCN CIRCULAR NUMBER: 30806 SUBJECT: Fermi GBM observation of a bright flare in the direction of SGR 1935+2154 DATE: 21/09/11 00:20:44 GMT FROM: Oliver J Roberts at USRA/NASA <oliver.roberts(a)nasa.gov> O.J. Roberts (USRA/NASA-MSFC), J. Wood (USRA/NASA-MSFC), report on behalf of the Fermi GBM Team: "At 00:45:46.94 UT on 10 September 2021, the Fermi Gamma-Ray Burst Monitor (GBM) triggered and located a bright, SGR-like flare from the direction of the magnetar SGR 1935+2154 (trigger 652927551/210910032). The flare was also observed by Konus Wind (Ridnaia et al., GCN 30804) and triangulated to an annulus incorporating the SGR position by the IPN (Ridnaia et al., GCN 30803). The on-ground calculated location using the Fermi GBM trigger data, is consistent with the known position of the SGR and the IPN localization. The angle from the Fermi LAT boresight at the GBM trigger time is 102 degrees. The burst has a duration (T90) of about 1.4 s (10-1000 keV). It is best fit by a double-blackbody model with temperatures of kT1 = 8.51 +/- 0.08 keV and kT2 = 16.55 +/- 0.18 keV. The event fluence (10-1000 keV) from T0-0.064s to T0+1.328s is (3.858 +/- 0.011)E-05 erg/cm^2. The average photon flux in the 10-1000 keV band during this period is 522.7 +/- 1.5 ph/s/cm^2. Fermi GBM has also triggered on 14 other bursts from the direction of SGR 1935+2154 over the last 4 days, indicating it has entered a stage of heightened activity in this latest outburst: Date and Time in UTC Fermi MET (s) 2021-09-06T01:44:30.10 652585475 2021-09-09T18:57:14.86 652906639 2021-09-09T20:21:28.37 652911693 2021-09-10T00:45:46.94 652927551 2021-09-10T01:00:43.71 652928448 2021-09-10T01:13:17.40 652929202 2021-09-10T01:27:05.60 652930030 2021-09-10T02:21:06.44 652933271 2021-09-10T02:36:38.24 652934203 2021-09-10T02:55:10.17 652935315 2021-09-10T05:35:55.51 652944960 2021-09-10T09:12:48.91 652957973 2021-09-10T15:50:56.89 652981861 2021-09-10T23:40:34.46 653010039 The spectral analysis results presented above are preliminary. We encourage multi-wavelength observations to follow-up this most recent activation. For Fermi GBM data and info, please visit the official Fermi GBM Support Page: https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/"

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[vsnet-grb-info 28702] Fermi trigger No 653010039: Global MASTER-Net observations report
by GCN Circulars 11 Sep '21

11 Sep '21

TITLE: GCN CIRCULAR NUMBER: 30805 SUBJECT: Fermi trigger No 653010039: Global MASTER-Net observations report DATE: 21/09/11 00:00:52 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov(a)xray.sai.msu.ru> V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) MASTER-Kislovodsk robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB210910.99 (trigger No 653010039,19h 31m 43.92s , +12d 52m 58.8s, R=28.47) errorbox 31 sec after notice time and 265 sec after trigger time at 2021-09-10 23:44:59 UT, with upper limit up to 17.6 mag. The observations began at zenith distance = 75 deg. The sun altitude is -30.5 deg. The galactic latitude b = -3 deg., longitude l = 49 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1716923 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 295 | 2021-09-10 23:44:59 | MASTER-Kislovodsk | (20h 30m 47.13s , +12d 34m 01.3s) | C | 60 | 17.1 | 295 | 2021-09-10 23:44:59 | MASTER-Kislovodsk | (20h 26m 57.68s , +12d 56m 23.9s) | C | 60 | 17.3 | 375 | 2021-09-10 23:46:19 | MASTER-Kislovodsk | (19h 57m 44.89s , +22d 02m 33.6s) | C | 60 | 16.8 | 375 | 2021-09-10 23:46:19 | MASTER-Kislovodsk | (19h 53m 42.81s , +22d 24m 51.3s) | C | 60 | 17.1 | 455 | 2021-09-10 23:47:39 | MASTER-Kislovodsk | (19h 45m 44.38s , +27d 45m 09.9s) | C | 60 | 16.4 | 455 | 2021-09-10 23:47:39 | MASTER-Kislovodsk | (19h 41m 29.70s , +28d 07m 27.0s) | C | 60 | 16.8 | 536 | 2021-09-10 23:49:00 | MASTER-Kislovodsk | (19h 26m 06.90s , +25d 49m 41.5s) | C | 60 | 16.9 | 536 | 2021-09-10 23:49:00 | MASTER-Kislovodsk | (19h 21m 59.39s , +26d 11m 49.2s) | C | 60 | 17.2 | 617 | 2021-09-10 23:50:21 | MASTER-Kislovodsk | (20h 30m 47.32s , +08d 44m 08.5s) | C | 60 | 16.9 | 618 | 2021-09-10 23:50:21 | MASTER-Kislovodsk | (20h 27m 02.69s , +09d 06m 22.2s) | C | 60 | 17.1 | 698 | 2021-09-10 23:51:42 | MASTER-Kislovodsk | (20h 40m 36.87s , +06d 50m 27.4s) | C | 60 | 17.4 | 698 | 2021-09-10 23:51:42 | MASTER-Kislovodsk | (20h 36m 53.21s , +07d 12m 42.3s) | C | 60 | 17.6 | 778 | 2021-09-10 23:53:02 | MASTER-Kislovodsk | (20h 24m 53.63s , +14d 27m 33.9s) | C | 60 | 17.0 | 778 | 2021-09-10 23:53:02 | MASTER-Kislovodsk | (20h 21m 03.00s , +14d 49m 49.0s) | C | 60 | 17.6 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.

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[vsnet-grb-info 28701] Konus-Wind detection of the second intermediate flare from SGR 1935+2154
by GCN Circulars 10 Sep '21

10 Sep '21

TITLE: GCN CIRCULAR NUMBER: 30804 SUBJECT: Konus-Wind detection of the second intermediate flare from SGR 1935+2154 DATE: 21/09/10 21:03:57 GMT FROM: Anna Ridnaia at Ioffe Institute <ridnaia(a)mail.ioffe.ru> A. Ridnaia, D. Frederiks, S. Golenetskii, A. Lysenko, D. Svinkin, A. Tsvetkova, M. Ulanov, and T. Cline on behalf of the Konus-Wind team, report: The very bright burst from SGR 1935+2154 (IPN triangulation: Ridnaia et al., GCN Circ. 30803) triggered Konus-Wind at T0=2750.499 s UT (00:45:50.499) on 2021 September 10. The light curve shows a single pulse with a sharp(<10 ms) rise and a total duration of ~1.4 s. The emission is seen up to ~200 keV. The Konus-Wind light curve of this burst is available at http://www.ioffe.ru/LEA/SGRs/210910_T02750/ As observed by Konus-Wind, the burst had a fluence of 2.51(-0.04,+0.04)x10^-5 erg/cm2, and a 16-ms peak flux, measured from T0+0.322 s, of 3.09(-0.18,+0.18)x10^-5 erg/cm2/s (both in the 20 - 500 keV energy range). The time-averaged spectrum of the burst (measured from T0 to T0+0.512 s) is best fit in the 20 - 200 keV range by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) with alpha = 0.21(-0.18,+0.19) and Ep = 52(-1,+1) keV (chi2 = 37/22 dof). The rather long duration of the burst along with the large measured energy fluence put the burst in the class of "intermediate" SGR bursts. The event is as fluent as the April 12, 2015 Intermediate Flare (Kozlova et al. 2016, MNRAS 460, 2008); the spectrum of the burst is characterized by the higher peak energy than of the April 12, 2015 IF (Ep~35 keV). All the quoted errors are at the 90% confidence level. All the quoted values are preliminary.

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