TDRSS lightcurve for Trigger=966554

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 16 Apr 20 07:05:34 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     966554,   Seg_Num: 0
GRB_RA:          335.691d {+22h 22m 46s} (J2000),
                 335.957d {+22h 23m 50s} (current),
                 335.035d {+22h 20m 08s} (1950)
GRB_DEC:          -7.530d {-07d 31' 47"} (J2000),
                  -7.427d {-07d 25' 36"} (current),
                  -7.783d {-07d 46' 58"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       1769 [cnts]    Image_Peak=140 [image_cnts]
TRIGGER_DUR:     0.512 [sec] 
TRIGGER_INDEX:   43     E_range: 25-100 keV
BKG_INTEN:       17585 [cnts]
BKG_TIME:        25503.21 SOD {07:05:03.21} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18955 TJD;   107 DOY;   20/04/16
GRB_TIME:        25517.17 SOD {07:05:17.17} UT
GRB_PHI:         -168.20 [deg]
GRB_THETA:        47.06 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     21.65 [sigma]
IMAGE_SIGNIF:    10.19 [sigma]
MERIT_PARAMS:     +1  +0  +0  -1  +2  +0  +0  +0 -61  +0 
SUN_POSTN:        24.83d {+01h 39m 19s}  +10.32d {+10d 18' 57"}
SUN_DIST:         51.79 [deg]   Sun_angle= 3.3 [hr] (West of Sun)
MOON_POSTN:      315.51d {+21h 02m 01s}  -20.31d {-20d 18' 38"}
MOON_DIST:        23.62 [deg]
MOON_ILLUM:      37 [%]
GAL_COORDS:       55.06,-49.71 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      334.73,  2.41 [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 = 59.19,-20.64 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(0.0<100sec) coincident with the FERMI_GBM event (trignum=608713522).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 16 Apr 20 07:23:23 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     966554,   Seg_Num: 0
GRB_RA:          335.691d {+22h 22m 46s} (J2000),
                 335.957d {+22h 23m 50s} (current),
                 335.035d {+22h 20m 08s} (1950)
GRB_DEC:          -7.530d {-07d 31' 47"} (J2000),
                  -7.427d {-07d 25' 36"} (current),
                  -7.783d {-07d 46' 58"} (1950)
GRB_DATE:        18955 TJD;   107 DOY;   20/04/16
GRB_TIME:        25517.17 SOD {07:05:17.17} UT
TRIGGER_INDEX:   43
GRB_PHI:         -168.20 [deg]
GRB_THETA:        47.06 [deg]
DELTA_TIME:      45.00 [sec]
TRIGGER_DUR:     0.512 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     21.65 [sigma]
IMAGE_SIGNIF:    10.19 [sigma]
LC_URL:          sw00966554000msb.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:
Thu Apr 16 03:23:43 EDT 2020