TDRSS lightcurve for Trigger=958733

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 28 Feb 20 11:15:47 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     958733,   Seg_Num: 0
GRB_RA:          252.026d {+16h 48m 06s} (J2000),
                 252.252d {+16h 49m 00s} (current),
                 251.466d {+16h 45m 52s} (1950)
GRB_DEC:         +16.960d {+16d 57' 37"} (J2000),
                 +16.926d {+16d 55' 33"} (current),
                 +17.047d {+17d 02' 51"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       29390 [cnts]    Image_Peak=388 [image_cnts]
TRIGGER_DUR:     8.192 [sec] 
TRIGGER_INDEX:   454     E_range: 15-50 keV
BKG_INTEN:       215343 [cnts]
BKG_TIME:        40391.48 SOD {11:13:11.48} UT
BKG_DUR:         64 [sec]
GRB_DATE:        18907 TJD;    59 DOY;   20/02/28
GRB_TIME:        40481.15 SOD {11:14:41.15} UT
GRB_PHI:         145.68 [deg]
GRB_THETA:        39.30 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     9.74 [sigma]
IMAGE_SIGNIF:    7.13 [sigma]
MERIT_PARAMS:     +1  +0  +0  +3  +1  -3  +0  +0  +2  +0 
SUN_POSTN:       340.90d {+22h 43m 37s}   -8.07d {-08d 04' 14"}
SUN_DIST:         91.07 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:       31.27d {+02h 05m 04s}   +7.84d {+07d 50' 25"}
MOON_DIST:       132.51 [deg]
MOON_ILLUM:      20 [%]
GAL_COORDS:       35.45, 34.70 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      247.67, 39.02 [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 = 285.53,0.93 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(2.0<100sec) coincident with the FERMI_GBM event (trignum=604581288).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 28 Feb 20 11:31:58 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     958733,   Seg_Num: 0
GRB_RA:          252.026d {+16h 48m 06s} (J2000),
                 252.252d {+16h 49m 00s} (current),
                 251.466d {+16h 45m 52s} (1950)
GRB_DEC:         +16.960d {+16d 57' 37"} (J2000),
                 +16.926d {+16d 55' 33"} (current),
                 +17.047d {+17d 02' 51"} (1950)
GRB_DATE:        18907 TJD;    59 DOY;   20/02/28
GRB_TIME:        40481.15 SOD {11:14:41.15} UT
TRIGGER_INDEX:   454
GRB_PHI:         145.68 [deg]
GRB_THETA:        39.30 [deg]
DELTA_TIME:      -5.00 [sec]
TRIGGER_DUR:     8.192 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     9.74 [sigma]
IMAGE_SIGNIF:    7.13 [sigma]
LC_URL:          sw00958733000msb.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:
Fri Feb 28 06:32:23 EST 2020