TDRSS lightcurve for Trigger=874475

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 03 Dec 18 12:09:08 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     874475,   Seg_Num: 0
GRB_RA:          108.369d {+07h 13m 29s} (J2000),
                 108.528d {+07h 14m 07s} (current),
                 107.948d {+07h 11m 48s} (1950)
GRB_DEC:         -39.769d {-39d 46' 07"} (J2000),
                 -39.802d {-39d 48' 07"} (current),
                 -39.682d {-39d 40' 55"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       2182 [cnts]    Image_Peak=145 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       12160 [cnts]
BKG_TIME:        43713.97 SOD {12:08:33.97} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18455 TJD;   337 DOY;   18/12/03
GRB_TIME:        43727.86 SOD {12:08:47.86} UT
GRB_PHI:         156.97 [deg]
GRB_THETA:        21.64 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     14.83 [sigma]
IMAGE_SIGNIF:    8.24 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  -1  +0  +0 +31  +0 
SUN_POSTN:       249.72d {+16h 38m 53s}  -22.13d {-22d 07' 38"}
SUN_DIST:        108.27 [deg]   Sun_angle= 9.4 [hr] (West of Sun)
MOON_POSTN:      205.66d {+13h 42m 38s}   -5.10d {-05d 05' 55"}
MOON_DIST:        92.18 [deg]
MOON_ILLUM:      15 [%]
GAL_COORDS:      251.17,-13.06 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      120.28,-61.29 [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 = 204.54,20.18 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 03 Dec 18 12:30:17 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     874475,   Seg_Num: 0
GRB_RA:          108.369d {+07h 13m 29s} (J2000),
                 108.528d {+07h 14m 07s} (current),
                 107.948d {+07h 11m 48s} (1950)
GRB_DEC:         -39.769d {-39d 46' 07"} (J2000),
                 -39.802d {-39d 48' 07"} (current),
                 -39.682d {-39d 40' 55"} (1950)
GRB_DATE:        18455 TJD;   337 DOY;   18/12/03
GRB_TIME:        43727.86 SOD {12:08:47.86} UT
TRIGGER_INDEX:   146
GRB_PHI:         156.97 [deg]
GRB_THETA:        21.64 [deg]
DELTA_TIME:      52.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     14.83 [sigma]
IMAGE_SIGNIF:    8.24 [sigma]
LC_URL:          sw00874475000msb.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:
Mon Dec  3 07:30:43 EST 2018