TDRSS lightcurve for Trigger=308812

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 09 Apr 08 01:23:11 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     308812,   Seg_Num: 0
GRB_RA:           84.333d {+05h 37m 20s} (J2000),
                  84.443d {+05h 37m 46s} (current),
                  83.668d {+05h 34m 40s} (1950)
GRB_DEC:          +5.085d {+05d 05' 07"} (J2000),
                  +5.090d {+05d 05' 23"} (current),
                  +5.056d {+05d 03' 22"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       3124 [cnts]    Image_Peak=260 [image_cnts]
TRIGGER_DUR:     0.512 [sec] 
TRIGGER_INDEX:   124     E_range: 25-100 keV
BKG_INTEN:       33925 [cnts]
BKG_TIME:        4965.29 SOD {01:22:45.29} UT
BKG_DUR:         8 [sec]
GRB_DATE:        14565 TJD;   100 DOY;   08/04/09
GRB_TIME:        4977.58 SOD {01:22:57.58} UT
GRB_PHI:         -146.27 [deg]
GRB_THETA:        39.90 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     19.84 [sigma]
IMAGE_SIGNIF:    14.13 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2 +12  +0  +0 -40  +1 
SUN_POSTN:        18.07d {+01h 12m 16s}   +7.66d {+07d 39' 23"}
SUN_DIST:         65.96 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:       56.57d {+03h 46m 17s}  +25.11d {+25d 06' 25"}
MOON_DIST:        33.39 [deg]
MOON_ILLUM:      12 [%]
GAL_COORDS:      199.64,-13.96 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       84.06,-18.24 [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 = 227.27,12.67 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 09 Apr 08 01:47:15 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     308812,   Seg_Num: 0
GRB_RA:           84.333d {+05h 37m 20s} (J2000),
                  84.443d {+05h 37m 46s} (current),
                  83.668d {+05h 34m 40s} (1950)
GRB_DEC:          +5.085d {+05d 05' 07"} (J2000),
                  +5.090d {+05d 05' 23"} (current),
                  +5.056d {+05d 03' 22"} (1950)
GRB_DATE:        14565 TJD;   100 DOY;   08/04/09
GRB_TIME:        4977.58 SOD {01:22:57.58} UT
TRIGGER_INDEX:   124
GRB_PHI:         -146.27 [deg]
GRB_THETA:        39.90 [deg]
DELTA_TIME:      51.00 [sec]
TRIGGER_DUR:     0.512 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     19.84 [sigma]
IMAGE_SIGNIF:    14.13 [sigma]
LC_URL:          sw00308812000msb.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:
Tue Apr  8 21:48:47 EDT 2008