TDRSS lightcurve for Trigger=277086

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 25 Apr 07 11:02:01 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     277086,   Seg_Num: 0
GRB_RA:          315.911d {+21h 03m 39s} (J2000),
                 315.976d {+21h 03m 54s} (current),
                 315.470d {+21h 01m 53s} (1950)
GRB_DEC:         +45.775d {+45d 46' 30"} (J2000),
                 +45.804d {+45d 48' 16"} (current),
                 +45.576d {+45d 34' 33"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=3381 [image_cnts]
TRIGGER_DUR:     128.000 [sec] 
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:        14215 TJD;   115 DOY;   07/04/25
GRB_TIME:        39582.08 SOD {10:59:42.08} UT
GRB_PHI:         -143.81 [deg]
GRB_THETA:         0.01 [deg]
SOLN_STATUS:     0x11D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    10.62 [sigma]
MERIT_PARAMS:     +0  +0 +100  +7  +1  +0  +0  +1 -32  +1 
SUN_POSTN:        32.59d {+02h 10m 22s}  +13.14d {+13d 08' 40"}
SUN_DIST:         71.33 [deg]   Sun_angle= 5.1 [hr] (West of Sun)
MOON_POSTN:      141.87d {+09h 27m 28s}  +17.49d {+17d 29' 22"}
MOON_DIST:       116.48 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       87.15, -0.68 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      342.27, 58.27 [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=0.020 [deg].  
COMMENTS:        This matches a source in the ground catalog: SAX2103.5+4545,   delta=0.020 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        This is an interesting source.  
COMMENTS:        This trigger occurred at longitude,latitude = 288.23,17.33 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 25 Apr 07 11:03:21 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     277086,   Seg_Num: 0
GRB_RA:          315.911d {+21h 03m 39s} (J2000),
                 315.976d {+21h 03m 54s} (current),
                 315.470d {+21h 01m 53s} (1950)
GRB_DEC:         +45.775d {+45d 46' 30"} (J2000),
                 +45.804d {+45d 48' 16"} (current),
                 +45.576d {+45d 34' 33"} (1950)
GRB_DATE:        14215 TJD;   115 DOY;   07/04/25
GRB_TIME:        39582.08 SOD {10:59:42.08} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -143.81 [deg]
GRB_THETA:         0.01 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     128.000 [sec] 
SOLN_STATUS:     0x11D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    10.62 [sigma]
LC_URL:          sw00277086000msb.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:
Wed Apr 25 07:04:08 EDT 2007