TDRSS lightcurve for Trigger=984929

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 29 Jul 20 19:39:05 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     984929,   Seg_Num: 0
GRB_RA:          184.375d {+12h 17m 30s} (J2000),
                 184.629d {+12h 18m 31s} (current),
                 183.754d {+12h 15m 01s} (1950)
GRB_DEC:         +45.582d {+45d 34' 56"} (J2000),
                 +45.468d {+45d 28' 05"} (current),
                 +45.860d {+45d 51' 36"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       16144 [cnts]    Image_Peak=386 [image_cnts]
TRIGGER_DUR:     8.192 [sec] 
TRIGGER_INDEX:   490     E_range: 50-350 keV
BKG_INTEN:       110445 [cnts]
BKG_TIME:        70590.63 SOD {19:36:30.63} UT
BKG_DUR:         64 [sec]
GRB_DATE:        19059 TJD;   211 DOY;   20/07/29
GRB_TIME:        70685.09 SOD {19:38:05.09} UT
GRB_PHI:         -158.89 [deg]
GRB_THETA:        41.53 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     9.59 [sigma]
IMAGE_SIGNIF:    8.81 [sigma]
MERIT_PARAMS:     +1  +0  +0  +3  +3  -1  +0  +0 -61  +0 
SUN_POSTN:       129.53d {+08h 38m 08s}  +18.49d {+18d 29' 13"}
SUN_DIST:         52.66 [deg]   Sun_angle= -3.7 [hr] (East of Sun)
MOON_POSTN:      245.59d {+16h 22m 21s}  -19.62d {-19d 37' 16"}
MOON_DIST:        85.34 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      140.81, 70.35 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      161.38, 42.57 [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:        Galaxy NGC4242 (of total mag=11.00 and dia=4.80 arcmin) is inside the position error circle.  
COMMENTS:        There is a 0.09% probability that an NGC galaxy would happen by chance coincidence.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 239.83,12.03 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 29 Jul 20 20:03:16 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     984929,   Seg_Num: 0
GRB_RA:          184.375d {+12h 17m 30s} (J2000),
                 184.629d {+12h 18m 31s} (current),
                 183.754d {+12h 15m 01s} (1950)
GRB_DEC:         +45.582d {+45d 34' 56"} (J2000),
                 +45.468d {+45d 28' 05"} (current),
                 +45.860d {+45d 51' 36"} (1950)
GRB_DATE:        19059 TJD;   211 DOY;   20/07/29
GRB_TIME:        70685.09 SOD {19:38:05.09} UT
TRIGGER_INDEX:   490
GRB_PHI:         -158.89 [deg]
GRB_THETA:        41.53 [deg]
DELTA_TIME:      -5.00 [sec]
TRIGGER_DUR:     
 

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

Plot creation:
Wed Jul 29 16:03:43 EDT 2020