TDRSS lightcurve for Trigger=889785

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 20 Feb 19 02:59:48 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     889785,   Seg_Num: 0
GRB_RA:          330.142d {+22h 00m 34s} (J2000),
                 330.609d {+22h 02m 26s} (current),
                 328.899d {+21h 55m 36s} (1950)
GRB_DEC:         -76.691d {-76d 41' 27"} (J2000),
                 -76.598d {-76d 35' 53"} (current),
                 -76.931d {-76d 55' 50"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       2717 [cnts]    Image_Peak=158 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   139     E_range: 15-50 keV
BKG_INTEN:       16189 [cnts]
BKG_TIME:        10761.55 SOD {02:59:21.55} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18534 TJD;    51 DOY;   19/02/20
GRB_TIME:        10774.67 SOD {02:59:34.67} UT
GRB_PHI:         -143.37 [deg]
GRB_THETA:        38.17 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     14.56 [sigma]
IMAGE_SIGNIF:    9.05 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +1  +0  +0  +0 -41  +0 
SUN_POSTN:       333.21d {+22h 12m 50s}  -11.06d {-11d 03' 19"}
SUN_DIST:         65.56 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      160.89d {+10h 43m 34s}  +11.77d {+11d 46' 20"}
MOON_DIST:       114.94 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      314.13,-36.46 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      292.08,-57.91 [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 = 216.92,-18.70 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 20 Feb 19 03:22:59 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     889785,   Seg_Num: 0
GRB_RA:          330.142d {+22h 00m 34s} (J2000),
                 330.609d {+22h 02m 26s} (current),
                 328.899d {+21h 55m 36s} (1950)
GRB_DEC:         -76.691d {-76d 41' 27"} (J2000),
                 -76.598d {-76d 35' 53"} (current),
                 -76.931d {-76d 55' 50"} (1950)
GRB_DATE:        18534 TJD;    51 DOY;   19/02/20
GRB_TIME:        10774.67 SOD {02:59:34.67} UT
TRIGGER_INDEX:   139
GRB_PHI:         -143.37 [deg]
GRB_THETA:        38.17 [deg]
DELTA_TIME:      -31.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     14.56 [sigma]
IMAGE_SIGNIF:    9.05 [sigma]
LC_URL:          sw00889785000msb.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:
Tue Feb 19 22:23:24 EST 2019