Gamma-ray Burst 201220A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN/BACODINE POSITION NOTICE
  

  TITLE:           GCN/MAXI NOTICE
  NOTICE_DATE:     Sun 20 Dec 20 13:40:15 UT
  NOTICE_TYPE:     MAXI Unknown Source Position
  EVENT_ID_NUM:      9203274470 
  EVENT_RA:        282.27d {+18h 49m 05s} (J2000),
                   282.54d {+18h 50m 10s} (current),
                   281.62d {+18h 46m 30s} (1950)
  EVENT_DEC:        -1.15d {-01d 08' 55"} (J2000),
                    -1.12d {-01d 07' 25"} (current),
                    -1.21d {-01d 12' 23"} (1950)
  EVENT_ERROR:     1.0 [deg radius, stat+sys, 90% containment]
  EVENT_FLUX:      52.0 +- 0.0 [mCrab]
  EVENT_DATE:      19203 TJD;   355 DOY;   20/12/20
  EVENT_TIME:      29394.00 SOD {08:09:54.00} UT
  EVENT_TSCALE:    1day
  EVENT_EBAND:     Low, 2-4 keV
  SUN_POSTN:       269.06d {+17h 56m 15s}  -23.43d {-23d 25' 58"}
  SUN_DIST:         25.86 [deg] 
  MOON_POSTN:      346.64d {+23h 06m 34s}  -11.43d {-11d 25' 33"}
  MOON_DIST:        64.41 [deg] 
  MOON_ILLUM:      36 [%] 
  GAL_COORDS:       31.64, -0.00 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:      283.22, 21.73 [deg] ecliptic lon,lat of the burst (or transient)
  COMMENTS:        MAXI Unknown Source Position. GRB or unknown X-ray Transient.
  COMMENTS:        WARNING: Message received with negative flux value(s).
  

• GCN NOTICE
  

  TITLE:           GCN/MAXI NOTICE
  NOTICE_DATE:     Sun 20 Dec 20 13:40:45 UT
  NOTICE_TYPE:     MAXI Unknown Source Position
  EVENT_ID_NUM:      9203274470 
  EVENT_RA:        282.17d {+18h 48m 40s} (J2000),
                   282.44d {+18h 49m 45s} (current),
                   281.52d {+18h 46m 04s} (1950)
  EVENT_DEC:        -1.50d {-01d 30' 09"} (J2000),
                    -1.48d {-01d 28' 40"} (current),
                    -1.56d {-01d 33' 35"} (1950)
  EVENT_ERROR:     1.0 [deg radius, stat+sys, 90% containment]
  EVENT_FLUX:      63.0 +- 0.0 [mCrab]
  EVENT_DATE:      19203 TJD;   355 DOY;   20/12/20
  EVENT_TIME:      29394.00 SOD {08:09:54.00} UT
  EVENT_TSCALE:    1day
  EVENT_EBAND:     Low, 2-4 keV
  SUN_POSTN:       269.06d {+17h 56m 15s}  -23.43d {-23d 25' 58"}
  SUN_DIST:         25.50 [deg] 
  MOON_POSTN:      346.65d {+23h 06m 35s}  -11.42d {-11d 25' 27"}
  MOON_DIST:        64.44 [deg] 
  MOON_ILLUM:      36 [%] 
  GAL_COORDS:       31.28, -0.07 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:      283.08, 21.39 [deg] ecliptic lon,lat of the burst (or transient)
  COMMENTS:        MAXI Unknown Source Position. GRB or unknown X-ray Transient.