TDRSS lightcurve for Trigger=878911

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 24 Dec 18 13:37:07 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     878911,   Seg_Num: 0
GRB_RA:          125.931d {+08h 23m 43s} (J2000),
                 126.184d {+08h 24m 44s} (current),
                 125.266d {+08h 21m 04s} (1950)
GRB_DEC:          +6.206d {+06d 12' 20"} (J2000),
                  +6.143d {+06d 08' 36"} (current),
                  +6.368d {+06d 22' 04"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       2815 [cnts]    Image_Peak=172 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       17902 [cnts]
BKG_TIME:        48993.86 SOD {13:36:33.86} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18476 TJD;   358 DOY;   18/12/24
GRB_TIME:        49011.59 SOD {13:36:51.59} UT
GRB_PHI:         -171.26 [deg]
GRB_THETA:        29.94 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     10.14 [sigma]
IMAGE_SIGNIF:    8.72 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  -1  -5  +0 +80  +0 
SUN_POSTN:       272.93d {+18h 11m 43s}  -23.41d {-23d 24' 31"}
SUN_DIST:        143.66 [deg]   Sun_angle= 9.8 [hr] (West of Sun)
MOON_POSTN:      119.74d {+07h 58m 57s}  +20.59d {+20d 35' 39"}
MOON_DIST:        15.74 [deg]
MOON_ILLUM:      95 [%]
GAL_COORDS:      218.02, 23.33 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      126.74,-12.77 [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 = 214.64,-17.57 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 24 Dec 18 13:53:48 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     878911,   Seg_Num: 0
GRB_RA:          125.931d {+08h 23m 43s} (J2000),
                 126.184d {+08h 24m 44s} (current),
                 125.266d {+08h 21m 04s} (1950)
GRB_DEC:          +6.206d {+06d 12' 20"} (J2000),
                  +6.143d {+06d 08' 36"} (current),
                  +6.368d {+06d 22' 04"} (1950)
GRB_DATE:        18476 TJD;   358 DOY;   18/12/24
GRB_TIME:        49011.59 SOD {13:36:51.59} UT
TRIGGER_INDEX:   146
GRB_PHI:         -171.26 [deg]
GRB_THETA:        29.94 [deg]
DELTA_TIME:      -11.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     10.14 [sigma]
IMAGE_SIGNIF:    8.72 [sigma]
LC_URL:          sw00878911000msb.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 24 08:54:02 EST 2018