TDRSS lightcurve for Trigger=280958

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 31 May 07 02:11:02 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     280958,   Seg_Num: 0
GRB_RA:            6.678d {+00h 26m 43s} (J2000),
                   6.791d {+00h 27m 10s} (current),
                   5.930d {+00h 23m 43s} (1950)
GRB_DEC:         +74.304d {+74d 18' 14"} (J2000),
                 +74.345d {+74d 20' 41"} (current),
                 +74.027d {+74d 01' 37"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       20036 [cnts]    Image_Peak=493 [image_cnts]
TRIGGER_DUR:     4.096 [sec] 
TRIGGER_INDEX:   302     E_range: 25-100 keV
BKG_INTEN:       173029 [cnts]
BKG_TIME:        7758.00 SOD {02:09:18.00} UT
BKG_DUR:         40 [sec]
GRB_DATE:        14251 TJD;   151 DOY;   07/05/31
GRB_TIME:        7817.52 SOD {02:10:17.52} UT
GRB_PHI:         -175.47 [deg]
GRB_THETA:        44.14 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     14.07 [sigma]
IMAGE_SIGNIF:    10.24 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +2  +5  +0  +0 -48  +1 
SUN_POSTN:        67.60d {+04h 30m 23s}  +21.84d {+21d 50' 27"}
SUN_DIST:         61.29 [deg]   Sun_angle= 4.1 [hr] (West of Sun)
MOON_POSTN:      235.16d {+15h 40m 40s}  -24.54d {-24d 32' 16"}
MOON_DIST:       124.26 [deg]
MOON_ILLUM:      99 [%]
GAL_COORDS:      121.23, 11.51 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       56.88, 60.55 [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 = 111.99,20.45 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 31 May 07 02:28:20 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     280958,   Seg_Num: 0
GRB_RA:            6.678d {+00h 26m 43s} (J2000),
                   6.791d {+00h 27m 10s} (current),
                   5.930d {+00h 23m 43s} (1950)
GRB_DEC:         +74.304d {+74d 18' 14"} (J2000),
                 +74.345d {+74d 20' 41"} (current),
                 +74.027d {+74d 01' 37"} (1950)
GRB_DATE:        14251 TJD;   151 DOY;   07/05/31
GRB_TIME:        7817.52 SOD {02:10:17.52} UT
TRIGGER_INDEX:   302
GRB_PHI:         -175.47 [deg]
GRB_THETA:        44.14 [deg]
DELTA_TIME:      -31.00 [sec]
TRIGGER_DUR:     4.096 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     14.07 [sigma]
IMAGE_SIGNIF:    10.24 [sigma]
LC_URL:          sw00280958000msb.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:
Wed May 30 22:28:45 EDT 2007