TDRSS lightcurve for Trigger=977310

Notes:

• 1) None of the TDRSS light curves are background subtracted.

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 12 Jun 20 04:47:31 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     977310,   Seg_Num: 0
GRB_RA:          302.681d {+20h 10m 43s} (J2000),
                 303.040d {+20h 12m 10s} (current),
                 301.802d {+20h 07m 12s} (1950)
GRB_DEC:         -45.357d {-45d 21' 24"} (J2000),
                 -45.295d {-45d 17' 41"} (current),
                 -45.505d {-45d 30' 19"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       7233 [cnts]    Image_Peak=254 [image_cnts]
TRIGGER_DUR:     2.048 [sec] 
TRIGGER_INDEX:   262     E_range: 25-100 keV
BKG_INTEN:       71146 [cnts]
BKG_TIME:        16742.90 SOD {04:39:02.90} UT
BKG_DUR:         24 [sec]
GRB_DATE:        19012 TJD;   164 DOY;   20/06/12
GRB_TIME:        16777.14 SOD {04:39:37.14} UT
GRB_PHI:          33.18 [deg]
GRB_THETA:        15.60 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     10.09 [sigma]
IMAGE_SIGNIF:    8.04 [sigma]
MERIT_PARAMS:     +1  +0  +0  +1  +2  -2  +0  +0 +76  +0 
SUN_POSTN:        80.96d {+05h 23m 50s}  +23.18d {+23d 10' 32"}
SUN_DIST:        139.44 [deg]   Sun_angle= 9.2 [hr] (West of Sun)
MOON_POSTN:      343.35d {+22h 53m 25s}  -12.49d {-12d 29' 37"}
MOON_DIST:        47.36 [deg]
MOON_ILLUM:      60 [%]
GAL_COORDS:      354.50,-32.45 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      294.68,-24.68 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 60 sec past the end of the trigger integration interval;  
COMMENTS:        probably due to it occurring during a Malindi downlink session.  
COMMENTS:        This is a rate trigger.  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 17.02,-20.02 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 12 Jun 20 04:59:54 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     977310,   Seg_Num: 0
GRB_RA:          302.681d {+20h 10m 43s} (J2000),
                 303.040d {+20h 12m 10s} (current),
                 301.802d {+20h 07m 12s} (1950)
GRB_DEC:         -45.357d {-45d 21' 24"} (J2000),
                 -45.295d {-45d 17' 41"} (current),
                 -45.505d {-45d 30' 19"} (1950)
GRB_DATE:        19012 TJD;   164 DOY;   20/06/12
GRB_TIME:        16777.14 SOD {04:39:37.14} UT
TRIGGER_INDEX:   262
GRB_PHI:          33.18 [deg]
GRB_THETA:        15.60 [deg]
DELTA_TIME:      -63.00 [sec]
TRIGGER_DUR:     2.048 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     10.09 [sigma]
IMAGE_SIGNIF:    8.04 [sigma]
LC_URL:          sw00977310000msb.lc

Initial TDRSS lightcurve and spacecraft attitude plot

TDRSS lightcurve from T0-30 to T0+50 (zoom in)

TDRSS light curve from T0-1 to T0+2 (More zoom in)

1.6s binned TDRSS light curve

Extended TDRSS light curve and spacecraft attitude plot(s)

Extended TDRSS lc No.1

Extended TDRSS lc No.2

Extended TDRSS lc No.3

Extended TDRSS lc No.4

Plot creation:
Fri Jun 12 01:00:24 EDT 2020