TDRSS lightcurve for Trigger=520658

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 22 Apr 12 07:12:49 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     520658,   Seg_Num: 0
GRB_RA:          136.929d {+09h 07m 43s} (J2000),
                 137.098d {+09h 08m 24s} (current),
                 136.240d {+09h 04m 58s} (1950)
GRB_DEC:         +14.006d {+14d 00' 23"} (J2000),
                 +13.956d {+13d 57' 23"} (current),
                 +14.209d {+14d 12' 31"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       14754 [cnts]    Image_Peak=380 [image_cnts]
TRIGGER_DUR:     4.096 [sec] 
TRIGGER_INDEX:   298     E_range: 25-100 keV
BKG_INTEN:       128240 [cnts]
BKG_TIME:        25863.87 SOD {07:11:03.87} UT
BKG_DUR:         40 [sec]
GRB_DATE:        16039 TJD;   113 DOY;   12/04/22
GRB_TIME:        25923.64 SOD {07:12:03.64} UT
GRB_PHI:         -110.99 [deg]
GRB_THETA:        23.54 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     11.83 [sigma]
IMAGE_SIGNIF:    8.33 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +2  -1  +0  +0 +22  +0 
SUN_POSTN:        30.37d {+02h 01m 28s}  +12.36d {+12d 21' 40"}
SUN_DIST:        102.78 [deg]   Sun_angle= -7.1 [hr] (East of Sun)
MOON_POSTN:       40.22d {+02h 40m 53s}  +17.64d {+17d 38' 26"}
MOON_DIST:        92.16 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      215.24, 36.45 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      135.19, -2.38 [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 = 180.72,-19.45 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 22 Apr 12 07:32:44 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     520658,   Seg_Num: 0
GRB_RA:          136.929d {+09h 07m 43s} (J2000),
                 137.098d {+09h 08m 24s} (current),
                 136.240d {+09h 04m 58s} (1950)
GRB_DEC:         +14.006d {+14d 00' 23"} (J2000),
                 +13.956d {+13d 57' 23"} (current),
                 +14.209d {+14d 12' 31"} (1950)
GRB_DATE:        16039 TJD;   113 DOY;   12/04/22
GRB_TIME:        25923.64 SOD {07:12:03.64} UT
TRIGGER_INDEX:   298
GRB_PHI:         -110.99 [deg]
GRB_THETA:        23.54 [deg]
DELTA_TIME:      -56.00 [sec]
TRIGGER_DUR:     4.096 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     11.83 [sigma]
IMAGE_SIGNIF:    8.33 [sigma]
LC_URL:          sw00520658000msb.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

Plot creation:
Sun Apr 22 03:33:04 EDT 2012