TDRSS lightcurve for Trigger=261664

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 23 Feb 07 01:22:48 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     261664,   Seg_Num: 0
GRB_RA:          153.452d {+10h 13m 49s} (J2000),
                 153.560d {+10h 14m 15s} (current),
                 152.693d {+10h 10m 46s} (1950)
GRB_DEC:         +43.121d {+43d 07' 16"} (J2000),
                 +43.086d {+43d 05' 08"} (current),
                 +43.369d {+43d 22' 10"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       14874 [cnts]    Image_Peak=336 [image_cnts]
TRIGGER_DUR:     3.072 [sec] 
TRIGGER_INDEX:   474     E_range: 25-100 keV
BKG_INTEN:       140062 [cnts]
BKG_TIME:        4454.21 SOD {01:14:14.21} UT
BKG_DUR:         32 [sec]
GRB_DATE:        14154 TJD;    54 DOY;   07/02/23
GRB_TIME:        4500.68 SOD {01:15:00.68} UT
GRB_PHI:         173.39 [deg]
GRB_THETA:        28.18 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     8.42 [sigma]
IMAGE_SIGNIF:    7.24 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +2  -1  +0  +0 +83  +1 
SUN_POSTN:       335.93d {+22h 23m 43s}  -10.03d {-10d 01' 37"}
SUN_DIST:        146.88 [deg]   Sun_angle= -11.8 [hr] (East of Sun)
MOON_POSTN:       43.59d {+02h 54m 22s}  +21.42d {+21d 25' 24"}
MOON_DIST:        89.01 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:      175.77, 54.45 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      138.82, 29.83 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 60 sec past the end of the trigger integration interval;  
COMMENTS:        probably due to it occurring during a Malindi downlink session.  
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 = 16.74,-17.73 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 23 Feb 07 01:24:17 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     261664,   Seg_Num: 0
GRB_RA:          153.452d {+10h 13m 49s} (J2000),
                 153.560d {+10h 14m 15s} (current),
                 152.693d {+10h 10m 46s} (1950)
GRB_DEC:         +43.121d {+43d 07' 16"} (J2000),
                 +43.086d {+43d 05' 08"} (current),
                 +43.369d {+43d 22' 10"} (1950)
GRB_DATE:        14154 TJD;    54 DOY;   07/02/23
GRB_TIME:        4500.68 SOD {01:15:00.68} UT
TRIGGER_INDEX:   474
GRB_PHI:         173.39 [deg]
GRB_THETA:        28.18 [deg]
DELTA_TIME:      -5.00 [sec]
TRIGGER_DUR:     3.072 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     8.42 [sigma]
IMAGE_SIGNIF:    7.24 [sigma]
LC_URL:          sw00261664000msb.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:
Thu Feb 22 21:40:26 EST 2007