TDRSS lightcurve for Trigger=277821

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 01 May 07 00:44:16 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     277821,   Seg_Num: 0
GRB_RA:          315.890d {+21h 03m 34s} (J2000),
                 315.954d {+21h 03m 49s} (current),
                 315.448d {+21h 01m 48s} (1950)
GRB_DEC:         +45.734d {+45d 44' 03"} (J2000),
                 +45.764d {+45d 45' 49"} (current),
                 +45.535d {+45d 32' 07"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=12289 [image_cnts]
TRIGGER_DUR:     1640.000 [sec]   (=27.3 [min])
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        14221 TJD;   121 DOY;   07/05/01
GRB_TIME:        990.07 SOD {00:16:30.07} UT
GRB_PHI:         174.70 [deg]
GRB_THETA:        38.93 [deg]
SOLN_STATUS:     0x11D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    8.25 [sigma]
MERIT_PARAMS:     +0  +0 +100  +6  +1  -1  +0  +1 -28  +1 
SUN_POSTN:        37.87d {+02h 31m 30s}  +14.90d {+14d 54' 15"}
SUN_DIST:         73.80 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:      201.97d {+13h 27m 54s}  -12.71d {-12d 42' 47"}
MOON_DIST:       115.74 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:       87.11, -0.69 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      342.20, 58.24 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
COMMENTS:        A point_source was found.  
COMMENTS:        This matches a source in the on-board catalog: Num=10572=SAX2103.5+4545,   delta=0.024 [deg].  
COMMENTS:        This matches a source in the ground catalog: SAX2103.5+4545,   delta=0.024 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        This is an interesting source.  
COMMENTS:        This trigger occurred at longitude,latitude = 151.75,-17.35 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 01 May 07 00:44:58 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     277821,   Seg_Num: 0
GRB_RA:          315.890d {+21h 03m 34s} (J2000),
                 315.954d {+21h 03m 49s} (current),
                 315.448d {+21h 01m 48s} (1950)
GRB_DEC:         +45.734d {+45d 44' 03"} (J2000),
                 +45.764d {+45d 45' 49"} (current),
                 +45.535d {+45d 32' 07"} (1950)
GRB_DATE:        14221 TJD;   121 DOY;   07/05/01
GRB_TIME:        990.07 SOD {00:16:30.07} UT
TRIGGER_INDEX:   20000
GRB_PHI:         174.70 [deg]
GRB_THETA:        38.93 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     1640.000 [sec]   (=27.3 [min])
SOLN_STATUS:     0x11D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    8.25 [sigma]
LC_URL:          sw00277821000msb.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

Plot creation:
Mon Apr 30 20:45:43 EDT 2007