TDRSS lightcurve for Trigger=303609

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 18 Feb 08 20:09:21 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     303609,   Seg_Num: 0
GRB_RA:          355.922d {+23h 43m 41s} (J2000),
                 356.025d {+23h 44m 06s} (current),
                 355.286d {+23h 41m 09s} (1950)
GRB_DEC:         +12.175d {+12d 10' 29"} (J2000),
                 +12.220d {+12d 13' 12"} (current),
                 +11.897d {+11d 53' 50"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       15663 [cnts]    Image_Peak=224 [image_cnts]
TRIGGER_DUR:     4.096 [sec] 
TRIGGER_INDEX:   291     E_range: 15-50 keV
BKG_INTEN:       143465 [cnts]
BKG_TIME:        72469.41 SOD {20:07:49.41} UT
BKG_DUR:         40 [sec]
GRB_DATE:        14514 TJD;    49 DOY;   08/02/18
GRB_TIME:        72522.79 SOD {20:08:42.79} UT
GRB_PHI:         -36.12 [deg]
GRB_THETA:        47.40 [deg]
SOLN_STATUS:     0x83
RATE_SIGNIF:     9.84 [sigma]
IMAGE_SIGNIF:    6.62 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +1  +0 -100  +0 -83  +1 
SUN_POSTN:       331.65d {+22h 06m 37s}  -11.63d {-11d 37' 51"}
SUN_DIST:         33.97 [deg]   Sun_angle= -1.6 [hr] (East of Sun)
MOON_POSTN:      123.53d {+08h 14m 07s}  +22.24d {+22d 14' 19"}
MOON_DIST:       118.08 [deg]
MOON_ILLUM:      94 [%]
GAL_COORDS:       98.05,-47.40 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:        1.18, 12.78 [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:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 278.21,20.27 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 18 Feb 08 20:25:28 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     303609,   Seg_Num: 0
GRB_RA:          355.922d {+23h 43m 41s} (J2000),
                 356.025d {+23h 44m 06s} (current),
                 355.286d {+23h 41m 09s} (1950)
GRB_DEC:         +12.175d {+12d 10' 29"} (J2000),
                 +12.220d {+12d 13' 12"} (current),
                 +11.897d {+11d 53' 50"} (1950)
GRB_DATE:        14514 TJD;    49 DOY;   08/02/18
GRB_TIME:        72522.79 SOD {20:08:42.79} UT
TRIGGER_INDEX:   291
GRB_PHI:         -36.12 [deg]
GRB_THETA:        47.40 [deg]
DELTA_TIME:      -57.00 [sec]
TRIGGER_DUR:     4.096 [sec] 
SOLN_STATUS:     0x83
RATE_SIGNIF:     9.84 [sigma]
IMAGE_SIGNIF:    6.62 [sigma]
LC_URL:          sw00303609000msb.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:
Mon Feb 18 15:25:45 EST 2008