TDRSS lightcurve for Trigger=813771

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 12 Mar 18 00:30:00 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     813771,   Seg_Num: 0
GRB_RA:          275.025d {+18h 20m 06s} (J2000),
                 275.245d {+18h 20m 59s} (current),
                 274.419d {+18h 17m 41s} (1950)
GRB_DEC:          +7.192d {+07d 11' 33"} (J2000),
                  +7.201d {+07d 12' 05"} (current),
                  +7.169d {+07d 10' 10"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=7354 [image_cnts]
TRIGGER_DUR:     1024.000 [sec]   (=17.1 [min])
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        18189 TJD;    71 DOY;   18/03/12
GRB_TIME:        699.39 SOD {00:11:39.39} UT
GRB_PHI:         -171.02 [deg]
GRB_THETA:        37.11 [deg]
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.92 [sigma]
MERIT_PARAMS:     +1  +0  +0  +8  +1  -2  +0  +0 -21  +0 
SUN_POSTN:       352.08d {+23h 28m 20s}   -3.42d {-03d 24' 57"}
SUN_DIST:         77.41 [deg]   Sun_angle= 5.1 [hr] (West of Sun)
MOON_POSTN:      290.19d {+19h 20m 45s}  -19.82d {-19d 48' 58"}
MOON_DIST:        30.76 [deg]
MOON_ILLUM:      27 [%]
GAL_COORDS:       35.83, 10.22 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      275.79, 30.53 [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 an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
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 = 90.64,-9.32 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 12 Mar 18 00:41:15 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     813771,   Seg_Num: 0
GRB_RA:          275.025d {+18h 20m 06s} (J2000),
                 275.245d {+18h 20m 59s} (current),
                 274.419d {+18h 17m 41s} (1950)
GRB_DEC:          +7.192d {+07d 11' 33"} (J2000),
                  +7.201d {+07d 12' 05"} (current),
                  +7.169d {+07d 10' 10"} (1950)
GRB_DATE:        18189 TJD;    71 DOY;   18/03/12
GRB_TIME:        699.39 SOD {00:11:39.39} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -171.02 [deg]
GRB_THETA:        37.11 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     1024.000 [sec]   (=17.1 [min])
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.92 [sigma]
LC_URL:          sw00813771000msb.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:
Sun Mar 11 20:41:42 EDT 2018