Data Sources: astronomerstelegram.org
Index Title Date
14566 MASTER OT J121212.00-453633.0 – new OT with ampl>5.2m 21 Apr 2021; 16:48 UT
14565 Apparent Outburst of Comet 22P/Kopff 20 Apr 2021; 21:14 UT
14564 MAXI J0903-531: confirmation of Be star companion and possible binary period 20 Apr 2021; 16:16 UT
14563 Aquila X-1 returns to quiescence : optical monitoring of the 2021 outburst 20 Apr 2021; 08:13 UT
14562 Spectroscopic Classifications of Optical Transients with Lick Shane + Kast 19 Apr 2021; 23:53 UT
14561 MAXI/GSC detection of a possible X-ray flare from the RS CVn binary system EI Eri 19 Apr 2021; 13:46 UT
14560 Long-Term X-ray Flaring Activity of the TeV-Detected Blazar H1426+428 19 Apr 2021; 10:29 UT
14559 NICER detection of periodicity in the new X-ray transient MAXI J0901-531 18 Apr 2021; 23:13 UT
14558 Insight-HXMT scanning survey detections of the new X-ray transient MAXI J0903-531 17 Apr 2021; 15:43 UT
14557 MAXI J0903-531: Swift localization and optical counterpart 16 Apr 2021; 18:20 UT
14556 Extremely bright pulse from FRB20201124A observed with the 25-m Stockert Radio Telescope 16 Apr 2021; 15:47 UT
14555 MAXI /GSC detection of a new X-ray transient MAXI J0903-531 16 Apr 2021; 08:02 UT
14554 MAXI/GSC detection of X-ray brightening from the X-ray pulsar XTE J1829-098 16 Apr 2021; 01:11 UT
14553 Visible and infrared spectroscopy of the nova V6595 Sagittarii 15 Apr 2021; 21:42 UT
14552 INTEGRAL hard X-ray constrains on the new X-ray transient Swift J174038.1-273712 15 Apr 2021; 13:04 UT
14551 MASTER OT J004310.68+412604.3 – OT outburst in M31 15 Apr 2021; 08:04 UT
14550 Swift Bulge Survey: Follow-up observations of the transient source Swift J174038.1-273712 15 Apr 2021; 03:51 UT
14549 Detection of a persistent radio source at the location of FRB20201124A with VLA 14 Apr 2021; 21:18 UT
14548 Strong increase of the optical brightness of BL Lac observed at the Hans-Haffner-Sternwarte 14 Apr 2021; 15:45 UT
14547 Enhanced optical activity of the 1156+295 (4C+29.45) quasar 14 Apr 2021; 07:32 UT
14546 Spectroscopic Classifications of Optical Transients with the Lick Shane telescope 13 Apr 2021; 20:48 UT
14545 NICER observations the new X-ray transient SWIFT J174038.1-273712 13 Apr 2021; 20:03 UT
14544 Spectroscopic classification of ASASSN-21fh as a classical nova of the Fe II class 13 Apr 2021; 01:36 UT
14543 Two Outbursts of Comet 29P/Schwassmann-Wachmann 1 12 Apr 2021; 23:12 UT
14542 MASTER OT detections in Gagarin Day 12 Apr 2021; 21:27 UT
14541 SN 2021hpr: prediscovery detection and follow-up observations 12 Apr 2021; 15:07 UT
14540 Detection of enhanced emission above 100 MeV, using Fermi-LAT data, associated with the PSR B1259-63/LS 2883 binary system approximately 60 days after periastron 12 Apr 2021; 05:38 UT
14539 ZTF detects an optical brightening of Swift J1357.2-0933 11 Apr 2021; 01:00 UT
14538 uGMRT localization of FRB20201124A 9 Apr 2021; 16:22 UT
14537 Radio observations of FRB20201124a at 4-8 GHz with the 100-m Effelsberg Radio Telescope 9 Apr 2021; 13:45 UT
14536 Swift Bulge Survey: Discovery of a new X-ray transient, Swift J174038.1-273712 9 Apr 2021; 12:15 UT
14535 Swift upper limit on early X-ray emission of Nova Sagittarii 2021 No. 2 = V6595 Sgr = PNV J17581670-2914490 9 Apr 2021; 07:46 UT
14534 NIR photometry of the FSRQ 5C12.291 8 Apr 2021; 21:55 UT
14533 Spectroscopic follow up of the classical nova V6595 Sgr (PNV J17581670-2914490) 8 Apr 2021; 19:39 UT
14532 MASTER follow-up optical observation of FRB201124A 8 Apr 2021; 17:20 UT
14531 MASTER OT J031055.01+472216.3: young SN in PGC2297096 or CV 8 Apr 2021; 16:38 UT
14530 Early NuSTAR and Swift X-ray detection of Nova Cassiopeiae 2021 = V1405 Cas = PNV J23244760+6111140 8 Apr 2021; 16:01 UT
14529 uGMRT detection of a persistent radio source coincident with FRB20201124A 8 Apr 2021; 14:39 UT
14528 Swift/XRT position of SRGA J181414.6-225604 8 Apr 2021; 01:27 UT
14527 NICER follow-up of SRGA J181414.6-225604 7 Apr 2021; 22:45 UT
14526 VLA/realfast localization and deep imaging of FRB 20201124A 7 Apr 2021; 18:56 UT
14525 Observations of FRB 20201124A with Swift/XRT and UVOT 7 Apr 2021; 17:33 UT
14524 Palomar Gattini-IR identification of a likely highly reddened infrared transient counterpart to SRG J181414.6-225604 = SRGe J181415.1-225617 7 Apr 2021; 17:14 UT
14523 Swift observations of FRB20201124A 7 Apr 2021; 14:18 UT
14522 Cometary Activity on Asteroid 2005 XR132 Observed at Lulin Observatory 7 Apr 2021; 13:54 UT
14521 SRG/ART-XC detection of an ongoing activity from X-ray pulsar XTE J1829-098 7 Apr 2021; 12:13 UT
14520 MAGIC detection of an increased activity from PG 1553+113 in very-high-energy gamma rays 7 Apr 2021; 11:41 UT
14519 High Frequency Radio Observations of FRB 20201124A at 2.26 GHz using the Deep Space Network 7 Apr 2021; 05:21 UT
14518 FAST detection and localization of FRB20201124A 6 Apr 2021; 16:32 UT
14517 INTEGRAL upper limits at higher energies on the SRG transient SRGA J181414.6-225604==SRGe J181415.1-225617 6 Apr 2021; 15:58 UT
14516 A redshift for the putative host galaxy of FRB20201124A 6 Apr 2021; 14:08 UT
14515 ASKAP localisation of the FRB 20201124A source 6 Apr 2021; 12:50 UT
14514 Correction: ATel #14513 Spectroscopic Classification of PNV J17581670-2914490 as a classical nova 6 Apr 2021; 07:03 UT
14513 Spectroscopic Classification of PNV J17581670-2914490 as a classical nova 6 Apr 2021; 05:25 UT
14512 A NuSTAR Observation of the black hole candidate XTE J1859+226 at a low Eddington fraction 5 Apr 2021; 22:01 UT
14511 MASTER optical observation of the blazar GB6 J1058+2817 5 Apr 2021; 16:57 UT
14510 SRG discovery of SRGA J181414.6-225604 == SRGe J181415.1-225617 – possible Galactic X-ray transient 4 Apr 2021; 21:33 UT
14509 Correction to ATel #14508 4 Apr 2021; 03:07 UT
14508 A second fast radio burst from the source of FRB 201124A detected by ASKAP 3 Apr 2021; 10:32 UT
14507 ATCA observations of radio flaring emission from GX 339-4 during the current hard-to-soft state transition 3 Apr 2021; 08:08 UT
14506 Detection of very-high-energy gamma-ray emission from GB6 J1058+2817 with the MAGIC telescopes 2 Apr 2021; 18:58 UT
14505 Correction for Atel #14504 2 Apr 2021; 13:08 UT
14504 Insight-HXMT detection of the hard-to-soft state transition in the black hole binary GX339-4 2 Apr 2021; 10:03 UT
14503 MASTER optical activity of blazar H 1426+428 2 Apr 2021; 06:55 UT
14502 ASKAP detection of a repeat burst from the FRB 20201124A source 2 Apr 2021; 02:05 UT
14501 VERITAS detection of an elevated VHE flux from the blazar H 1426+428 31 Mar 2021; 22:06 UT
14500 Spectroscopic Classification of AT 2021hiz with SOAR 31 Mar 2021; 21:49 UT
14499 Chandra Observations of MAXI J1848-015 prior to its outburst and a possible NIR counterpart 31 Mar 2021; 19:55 UT
14498 MAXI/GSC detection of (quasi-)periodic outbursts in 2014-2015 and the current status of Swift J1626.6-5156 31 Mar 2021; 14:46 UT
14497 Recent high activity from a repeating Fast Radio Burst discovered by CHIME/FRB 31 Mar 2021; 02:11 UT
14496 Optical follow-up of GB6 J1058+2817 30 Mar 2021; 20:41 UT
14495 NICER and Swift observations of the new outburst of MAXI J1820+070 30 Mar 2021; 20:09 UT
14494 Ongoing state transition of the BH XRB GX 339-4 confirmed in the optical by XB-NEWS 30 Mar 2021; 16:27 UT
14493 A descriptive title 30 Mar 2021; 16:24 UT
14492 XB-NEWS detects a new outburst from the black hole X-ray binary MAXI J1820+070 29 Mar 2021; 17:58 UT
14491 Fermi-LAT detection of gamma-ray flaring activity from the BL Lac GB6 J1058+2817 29 Mar 2021; 17:56 UT
14490 NICER X-ray activity shows GX 339-4 undergoing a rapid state transition 28 Mar 2021; 14:22 UT
14489 The H-alpha measurement of Swift J1626.6-5156 with the Southern African Large Telescope (SALT) 27 Mar 2021; 16:07 UT
14488 Spectroscopic classification and BVRI photometry of ASASSN-21eh as a classical nova 27 Mar 2021; 09:03 UT
14487 Optical Spectroscopy of Transient TCP J18490521-1902054: A classical nova of the Fe II class in an early outburst phase 27 Mar 2021; 08:02 UT
14486 Small Apparent Outbursts of Comet 7P/Pons-Winnecke 26 Mar 2021; 19:15 UT
14485 MASTER OT J220020.25-464517.2 discovery 26 Mar 2021; 15:46 UT
14484 Detection of Low Frequency QPO in GX 339-4 with NuSTAR 25 Mar 2021; 23:33 UT
14483 MAGIC detection of an increased activity from M87 at very-high-energy gamma rays 23 Mar 2021; 23:09 UT
14482 Visible and Infrared Spectra of the nova V1405 Cassiopeiae 23 Mar 2021; 22:02 UT
14481 Enhanced activity from Centaurus X-3 as detected by Fermi/GBM 23 Mar 2021; 18:48 UT
14480 One more burst from FRB 180916.J0158+65 observed with the Medicina Northern Cross at 408 MHz 23 Mar 2021; 09:29 UT
14479 Spectroscopic Classifications of Optical Transients with Lick Shane + Kast 22 Mar 2021; 15:56 UT