TDRSS lightcurve for Trigger=820513

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 31 Mar 18 15:39:16 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     820513,   Seg_Num: 0
GRB_RA:          196.820d {+13h 07m 17s} (J2000),
                 196.999d {+13h 08m 00s} (current),
                 196.328d {+13h 05m 19s} (1950)
GRB_DEC:         +61.725d {+61d 43' 30"} (J2000),
                 +61.628d {+61d 37' 40"} (current),
                 +61.992d {+61d 59' 31"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       7525 [cnts]    Image_Peak=250 [image_cnts]
TRIGGER_DUR:     2.048 [sec] 
TRIGGER_INDEX:   264     E_range: 25-100 keV
BKG_INTEN:       69352 [cnts]
BKG_TIME:        56283.28 SOD {15:38:03.28} UT
BKG_DUR:         24 [sec]
GRB_DATE:        18208 TJD;    90 DOY;   18/03/31
GRB_TIME:        56319.32 SOD {15:38:39.32} UT
GRB_PHI:         -67.56 [deg]
GRB_THETA:        34.35 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     21.67 [sigma]
IMAGE_SIGNIF:    9.48 [sigma]
MERIT_PARAMS:     +1  +0  +0  +1  +2  +0  +0  +0 +40  +0 
SUN_POSTN:        10.00d {+00h 40m 00s}   +4.30d {+04d 18' 15"}
SUN_DIST:        113.85 [deg]   Sun_angle= 11.5 [hr] (West of Sun)
MOON_POSTN:      193.25d {+12h 53m 00s}   -0.89d {-00d 53' 36"}
MOON_DIST:        62.59 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      119.64, 55.30 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      153.65, 59.60 [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 = 51.62,-4.01 [deg].

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 31 Mar 18 15:56:15 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     820513,   Seg_Num: 0
GRB_RA:          196.820d {+13h 07m 17s} (J2000),
                 196.999d {+13h 08m 00s} (current),
                 196.328d {+13h 05m 19s} (1950)
GRB_DEC:         +61.725d {+61d 43' 30"} (J2000),
                 +61.628d {+61d 37' 40"} (current),
                 +61.992d {+61d 59' 31"} (1950)
GRB_DATE:        18208 TJD;    90 DOY;   18/03/31
GRB_TIME:        56319.32 SOD {15:38:39.32} UT
TRIGGER_INDEX:   264
GRB_PHI:         -67.56 [deg]
GRB_THETA:        34.35 [deg]
DELTA_TIME:      76.00 [sec]
TRIGGER_DUR:     2.048 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     21.67 [sigma]
IMAGE_SIGNIF:    9.48 [sigma]
LC_URL:          sw00820513000msb.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:
Sat Mar 31 11:56:24 EDT 2018