TDRSS lightcurve for Trigger=811074

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 21 Feb 18 06:32:58 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     811074,   Seg_Num: 0
GRB_RA:          326.772d {+21h 47m 05s} (J2000),
                 327.183d {+21h 48m 44s} (current),
                 325.626d {+21h 42m 30s} (1950)
GRB_DEC:         -72.868d {-72d 52' 05"} (J2000),
                 -72.784d {-72d 47' 00"} (current),
                 -73.100d {-73d 05' 57"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       99768 [cnts]    Image_Peak=693 [image_cnts]
TRIGGER_DUR:     16.384 [sec] 
TRIGGER_INDEX:   377     E_range: 25-100 keV
BKG_INTEN:       343267 [cnts]
BKG_TIME:        23347.48 SOD {06:29:07.48} UT
BKG_DUR:         64 [sec]
GRB_DATE:        18170 TJD;    52 DOY;   18/02/21
GRB_TIME:        23444.83 SOD {06:30:44.83} UT
GRB_PHI:         -43.31 [deg]
GRB_THETA:        41.62 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     9.59 [sigma]
IMAGE_SIGNIF:    7.01 [sigma]
MERIT_PARAMS:     +1  +0  +0  +4  +2  -3  +0  +0 -46  +0 
SUN_POSTN:       334.54d {+22h 18m 10s}  -10.55d {-10d 33' 17"}
SUN_DIST:         62.38 [deg]   Sun_angle= 0.5 [hr] (West of Sun)
MOON_POSTN:       35.75d {+02h 23m 00s}   +8.67d {+08d 40' 15"}
MOON_DIST:        92.13 [deg]
MOON_ILLUM:      28 [%]
GAL_COORDS:      318.58,-38.14 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      295.01,-54.35 [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 = 285.05,-6.64 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 21 Feb 18 06:48:15 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     811074,   Seg_Num: 0
GRB_RA:          326.772d {+21h 47m 05s} (J2000),
                 327.183d {+21h 48m 44s} (current),
                 325.626d {+21h 42m 30s} (1950)
GRB_DEC:         -72.868d {-72d 52' 05"} (J2000),
                 -72.784d {-72d 47' 00"} (current),
                 -73.100d {-73d 05' 57"} (1950)
GRB_DATE:        18170 TJD;    52 DOY;   18/02/21
GRB_TIME:        23444.83 SOD {06:30:44.83} UT
TRIGGER_INDEX:   377
GRB_PHI:         -43.31 [deg]
GRB_THETA:        41.62 [deg]
DELTA_TIME:      25.00 [sec]
TRIGGER_DUR:     16.384 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     9.59 [sigma]
IMAGE_SIGNIF:    7.01 [sigma]
LC_URL:          sw00811074000msb.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:
Wed Feb 21 01:48:43 EST 2018