TDRSS lightcurve for Trigger=967774

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 25 Apr 20 00:17:11 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     967774,   Seg_Num: 0
GRB_RA:           85.241d {+05h 40m 58s} (J2000),
                  85.474d {+05h 41m 54s} (current),
                  84.667d {+05h 38m 40s} (1950)
GRB_DEC:         -13.459d {-13d 27' 31"} (J2000),
                 -13.450d {-13d 26' 58"} (current),
                 -13.483d {-13d 28' 59"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       10538 [cnts]    Image_Peak=344 [image_cnts]
TRIGGER_DUR:     4.096 [sec] 
TRIGGER_INDEX:   298     E_range: 25-100 keV
BKG_INTEN:       88756 [cnts]
BKG_TIME:        927.17 SOD {00:15:27.17} UT
BKG_DUR:         40 [sec]
GRB_DATE:        18964 TJD;   116 DOY;   20/04/25
GRB_TIME:        981.76 SOD {00:16:21.76} UT
GRB_PHI:          -4.50 [deg]
GRB_THETA:        12.68 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     13.49 [sigma]
IMAGE_SIGNIF:    8.62 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +2  -1  +0  +0 -52  +0 
SUN_POSTN:        32.98d {+02h 11m 54s}  +13.28d {+13d 16' 33"}
SUN_DIST:         58.48 [deg]   Sun_angle= -3.5 [hr] (East of Sun)
MOON_POSTN:       54.85d {+03h 39m 24s}  +16.57d {+16d 34' 10"}
MOON_DIST:        42.62 [deg]
MOON_ILLUM:      3 [%]
GAL_COORDS:      217.43,-21.60 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       84.22,-36.80 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
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 = 253.26,19.68 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 25 Apr 20 00:22:06 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     967774,   Seg_Num: 0
GRB_RA:           85.241d {+05h 40m 58s} (J2000),
                  85.474d {+05h 41m 54s} (current),
                  84.667d {+05h 38m 40s} (1950)
GRB_DEC:         -13.459d {-13d 27' 31"} (J2000),
                 -13.450d {-13d 26' 58"} (current),
                 -13.483d {-13d 28' 59"} (1950)
GRB_DATE:        18964 TJD;   116 DOY;   20/04/25
GRB_TIME:        981.76 SOD {00:16:21.76} UT
TRIGGER_INDEX:   298
GRB_PHI:          -4.50 [deg]
GRB_THETA:        12.68 [deg]
DELTA_TIME:      16657.00 [sec]
TRIGGER_DUR:     4.096 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     13.49 [sigma]
IMAGE_SIGNIF:    8.62 [sigma]
LC_URL:          sw00967774000msb.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

Plot creation:
Fri Apr 24 20:22:47 EDT 2020