TDRSS lightcurve for Trigger=278809

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 07 May 07 13:25:08 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     278809,   Seg_Num: 0
GRB_RA:          243.010d {+16h 12m 02s} (J2000),
                 243.042d {+16h 12m 10s} (current),
                 242.791d {+16h 11m 10s} (1950)
GRB_DEC:         +59.488d {+59d 29' 16"} (J2000),
                 +59.469d {+59d 28' 09"} (current),
                 +59.615d {+59d 36' 53"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       278 [cnts]    Image_Peak=37 [image_cnts]
TRIGGER_DUR:     0.032 [sec] 
TRIGGER_INDEX:   10327     E_range: 50-350 keV
BKG_INTEN:       34711 [cnts]
BKG_TIME:        48278.06 SOD {13:24:38.06} UT
BKG_DUR:         8 [sec]
GRB_DATE:        14227 TJD;   127 DOY;   07/05/07
GRB_TIME:        48291.82 SOD {13:24:51.82} UT
GRB_PHI:         -14.60 [deg]
GRB_THETA:        34.31 [deg]
SOLN_STATUS:     0x83
RATE_SIGNIF:     11.35 [sigma]
IMAGE_SIGNIF:    6.54 [sigma]
MERIT_PARAMS:     +1  +0  +0  -5  +3  +1  +0  +0 +21  +1 
SUN_POSTN:        44.15d {+02h 56m 36s}  +16.80d {+16d 48' 10"}
SUN_DIST:        102.19 [deg]   Sun_angle= 10.7 [hr] (West of Sun)
MOON_POSTN:      286.43d {+19h 05m 43s}  -26.99d {-26d 59' 17"}
MOON_DIST:        93.55 [deg]
MOON_ILLUM:      77 [%]
GAL_COORDS:       90.71, 43.03 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      197.44, 76.02 [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 = 144.43,19.37 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 07 May 07 13:42:43 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     278809,   Seg_Num: 0
GRB_RA:          243.010d {+16h 12m 02s} (J2000),
                 243.042d {+16h 12m 10s} (current),
                 242.791d {+16h 11m 10s} (1950)
GRB_DEC:         +59.488d {+59d 29' 16"} (J2000),
                 +59.469d {+59d 28' 09"} (current),
                 +59.615d {+59d 36' 53"} (1950)
GRB_DATE:        14227 TJD;   127 DOY;   07/05/07
GRB_TIME:        48291.92 SOD {13:24:51.92} UT
TRIGGER_INDEX:   10327
GRB_PHI:         -14.60 [deg]
GRB_THETA:        34.31 [deg]
DELTA_TIME:      54.00 [sec]
TRIGGER_DUR:     0.032 [sec] 
SOLN_STATUS:     0x83
RATE_SIGNIF:     11.35 [sigma]
IMAGE_SIGNIF:    6.54 [sigma]
LC_URL:          sw00278809000msb.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 May  7 10:57:23 EDT 2007