TDRSS lightcurve for Trigger=828672

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 25 Apr 18 06:46:36 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     828672,   Seg_Num: 0
GRB_RA:           64.469d {+04h 17m 53s} (J2000),
                  64.644d {+04h 18m 35s} (current),
                  63.992d {+04h 15m 58s} (1950)
GRB_DEC:         -32.956d {-32d 57' 20"} (J2000),
                 -32.912d {-32d 54' 42"} (current),
                 -33.077d {-33d 04' 36"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       3223 [cnts]    Image_Peak=122 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   148     E_range: 25-100 keV
BKG_INTEN:       20789 [cnts]
BKG_TIME:        24363.15 SOD {06:46:03.15} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18233 TJD;   115 DOY;   18/04/25
GRB_TIME:        24381.78 SOD {06:46:21.78} UT
GRB_PHI:         -62.23 [deg]
GRB_THETA:        36.54 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     11.91 [sigma]
IMAGE_SIGNIF:    7.04 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  -3  +0  +0 -56  +0 
SUN_POSTN:        32.74d {+02h 10m 59s}  +13.20d {+13d 11' 46"}
SUN_DIST:         55.26 [deg]   Sun_angle= -2.1 [hr] (East of Sun)
MOON_POSTN:      158.40d {+10h 33m 35s}  +11.38d {+11d 22' 39"}
MOON_DIST:        99.27 [deg]
MOON_ILLUM:      76 [%]
GAL_COORDS:      233.48,-45.38 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       52.91,-53.16 [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 = 106.51,-16.23 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 25 Apr 18 07:06:28 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     828672,   Seg_Num: 0
GRB_RA:           64.469d {+04h 17m 53s} (J2000),
                  64.644d {+04h 18m 35s} (current),
                  63.992d {+04h 15m 58s} (1950)
GRB_DEC:         -32.956d {-32d 57' 20"} (J2000),
                 -32.912d {-32d 54' 42"} (current),
                 -33.077d {-33d 04' 36"} (1950)
GRB_DATE:        18233 TJD;   115 DOY;   18/04/25
GRB_TIME:        24381.78 SOD {06:46:21.78} UT
TRIGGER_INDEX:   148
GRB_PHI:         -62.23 [deg]
GRB_THETA:        36.54 [deg]
DELTA_TIME:      58.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     11.91 [sigma]
IMAGE_SIGNIF:    7.04 [sigma]
LC_URL:          sw00828672000msb.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:
Wed Apr 25 03:06:43 EDT 2018