TDRSS lightcurve for Trigger=890732

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 26 Feb 19 06:19:55 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     890732,   Seg_Num: 0
GRB_RA:          247.821d {+16h 31m 17s} (J2000),
                 248.175d {+16h 32m 42s} (current),
                 246.897d {+16h 27m 35s} (1950)
GRB_DEC:         -47.792d {-47d 47' 30"} (J2000),
                 -47.832d {-47d 49' 54"} (current),
                 -47.685d {-47d 41' 04"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=6526 [image_cnts]
TRIGGER_DUR:     384.000 [sec]   (=6.4 [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:        18540 TJD;    57 DOY;   19/02/26
GRB_TIME:        22369.51 SOD {06:12:49.51} UT
GRB_PHI:         -97.52 [deg]
GRB_THETA:        20.69 [deg]
SOLN_STATUS:     0x11D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    11.43 [sigma]
MERIT_PARAMS:     +0  +0 +124  +7  +1  +1  +0  +1  -9  +0 
SUN_POSTN:       339.06d {+22h 36m 13s}   -8.81d {-08d 48' 28"}
SUN_DIST:         84.07 [deg]   Sun_angle= 6.1 [hr] (West of Sun)
MOON_POSTN:      243.67d {+16h 14m 41s}  -17.05d {-17d 02' 43"}
MOON_DIST:        31.01 [deg]
MOON_ILLUM:      52 [%]
GAL_COORDS:      336.30,  0.32 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      253.67,-25.60 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
COMMENTS:        A point_source was found.  
COMMENTS:        This matches a source in the on-board catalog: Num=10577=4U_1630-47_SGR,   delta=0.800 [deg].  
COMMENTS:        This matches a source in the ground catalog: AX_1631.9-4752,   delta=0.153 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        This is an interesting source.  
COMMENTS:        This trigger occurred at longitude,latitude = 321.61,20.61 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 26 Feb 19 06:32:39 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     890732,   Seg_Num: 0
GRB_RA:          247.821d {+16h 31m 17s} (J2000),
                 248.175d {+16h 32m 42s} (current),
                 246.897d {+16h 27m 35s} (1950)
GRB_DEC:         -47.792d {-47d 47' 30"} (J2000),
                 -47.832d {-47d 49' 54"} (current),
                 -47.685d {-47d 41' 04"} (1950)
GRB_DATE:        18540 TJD;    57 DOY;   19/02/26
GRB_TIME:        22369.51 SOD {06:12:49.51} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -97.52 [deg]
GRB_THETA:        20.69 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     384.000 [sec]   (=6.4 [min])
SOLN_STATUS:     0x11D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    11.43 [sigma]
LC_URL:          sw00890732000msb.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:
Tue Feb 26 01:33:03 EST 2019