TDRSS lightcurve for Trigger=994856

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 06 Sep 20 13:11:37 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     994856,   Seg_Num: 0
GRB_RA:          272.293d {+18h 09m 10s} (J2000),
                 272.275d {+18h 09m 06s} (current),
                 272.336d {+18h 09m 21s} (1950)
GRB_DEC:         +67.852d {+67d 51' 08"} (J2000),
                 +67.857d {+67d 51' 24"} (current),
                 +67.841d {+67d 50' 27"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       6889 [cnts]    Image_Peak=282 [image_cnts]
TRIGGER_DUR:     2.048 [sec] 
TRIGGER_INDEX:   473     E_range: 25-100 keV
BKG_INTEN:       66904 [cnts]
BKG_TIME:        47430.41 SOD {13:10:30.41} UT
BKG_DUR:         24 [sec]
GRB_DATE:        19098 TJD;   250 DOY;   20/09/06
GRB_TIME:        47464.07 SOD {13:11:04.07} UT
GRB_PHI:         112.09 [deg]
GRB_THETA:         8.43 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     12.32 [sigma]
IMAGE_SIGNIF:    8.66 [sigma]
MERIT_PARAMS:     +1  +0  +0  +1  +2  -1  +0  +0  +0  +0 
SUN_POSTN:       165.63d {+11h 02m 32s}   +6.14d {+06d 08' 20"}
SUN_DIST:         90.47 [deg]   Sun_angle= -7.1 [hr] (East of Sun)
MOON_POSTN:       31.47d {+02h 05m 53s}   +8.53d {+08d 31' 45"}
MOON_DIST:        92.55 [deg]
MOON_ILLUM:      84 [%]
GAL_COORDS:       97.88, 28.94 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       56.53, 88.43 [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 = 74.57,20.35 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 06 Sep 20 13:29:45 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     994856,   Seg_Num: 0
GRB_RA:          272.293d {+18h 09m 10s} (J2000),
                 272.275d {+18h 09m 06s} (current),
                 272.336d {+18h 09m 21s} (1950)
GRB_DEC:         +67.852d {+67d 51' 08"} (J2000),
                 +67.857d {+67d 51' 24"} (current),
                 +67.841d {+67d 50' 27"} (1950)
GRB_DATE:        19098 TJD;   250 DOY;   20/09/06
GRB_TIME:        47464.07 SOD {13:11:04.07} UT
TRIGGER_INDEX:   473
GRB_PHI:         112.09 [deg]
GRB_THETA:         8.43 [deg]
DELTA_TIME:      -5.00 [sec]
TRIGGER_DUR:     2.048 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     12.32 [sigma]
IMAGE_SIGNIF:    8.66 [sigma]
LC_URL:          sw00994856000msb.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:
Sun Sep  6 09:30:23 EDT 2020