TDRSS lightcurve for Trigger=880127

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 28 Dec 18 23:51:34 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     880127,   Seg_Num: 0
GRB_RA:           18.159d {+01h 12m 38s} (J2000),
                  18.343d {+01h 13m 22s} (current),
                  17.673d {+01h 10m 42s} (1950)
GRB_DEC:         -60.951d {-60d 57' 03"} (J2000),
                 -60.851d {-60d 51' 01"} (current),
                 -61.216d {-61d 12' 56"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       27505 [cnts]    Image_Peak=436 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   158     E_range: 50-350 keV
BKG_INTEN:       168037 [cnts]
BKG_TIME:        85809.84 SOD {23:50:09.84} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18480 TJD;   362 DOY;   18/12/28
GRB_TIME:        85828.40 SOD {23:50:28.40} UT
GRB_PHI:          10.01 [deg]
GRB_THETA:        19.27 [deg]
SOLN_STATUS:     0xC3
RATE_SIGNIF:     28.61 [sigma]
IMAGE_SIGNIF:    6.61 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +3  -4  +0  +0 -26  +0 
SUN_POSTN:       277.84d {+18h 31m 21s}  -23.24d {-23d 14' 25"}
SUN_DIST:         74.75 [deg]   Sun_angle= -6.7 [hr] (East of Sun)
MOON_POSTN:      183.61d {+12h 14m 25s}   +3.60d {+03d 35' 57"}
MOON_DIST:       121.67 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:      298.33,-55.99 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      335.64,-59.57 [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 during a high background rate interval.  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 28 Dec 18 23:56:33 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     880127,   Seg_Num: 0
GRB_RA:           18.159d {+01h 12m 38s} (J2000),
                  18.343d {+01h 13m 22s} (current),
                  17.673d {+01h 10m 42s} (1950)
GRB_DEC:         -60.951d {-60d 57' 03"} (J2000),
                 -60.851d {-60d 51' 01"} (current),
                 -61.216d {-61d 12' 56"} (1950)
GRB_DATE:        18480 TJD;   362 DOY;   18/12/28
GRB_TIME:        85828.40 SOD {23:50:28.40} UT
TRIGGER_INDEX:   158
GRB_PHI:          10.01 [deg]
GRB_THETA:        19.27 [deg]
DELTA_TIME:      23056.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0xC3
RATE_SIGNIF:     28.61 [sigma]
IMAGE_SIGNIF:    6.61 [sigma]
LC_URL:          sw00880127000msb.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:
Fri Dec 28 18:57:06 EST 2018