TDRSS lightcurve for Trigger=280447

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 26 May 07 08:50:34 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     280447,   Seg_Num: 0
GRB_RA:          301.271d {+20h 05m 05s} (J2000),
                 301.345d {+20h 05m 23s} (current),
                 300.776d {+20h 03m 06s} (1950)
GRB_DEC:         +31.484d {+31d 29' 02"} (J2000),
                 +31.505d {+31d 30' 19"} (current),
                 +31.340d {+31d 20' 25"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1169 [image_cnts]
TRIGGER_DUR:     64.000 [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:        14246 TJD;   146 DOY;   07/05/26
GRB_TIME:        31758.02 SOD {08:49:18.02} UT
GRB_PHI:         -29.25 [deg]
GRB_THETA:        49.67 [deg]
SOLN_STATUS:     0x413
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    8.39 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  -1  +0  +1 +22  +1 
SUN_POSTN:        62.79d {+04h 11m 10s}  +21.08d {+21d 05' 05"}
SUN_DIST:        103.12 [deg]   Sun_angle= 8.1 [hr] (West of Sun)
MOON_POSTN:      181.42d {+12h 05m 41s}   -2.42d {-02d 25' 07"}
MOON_DIST:       116.55 [deg]
MOON_ILLUM:      73 [%]
GAL_COORDS:       68.92, -0.09 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      313.84, 50.27 [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 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 = 179.05,-14.59 [deg].  
COMMENTS:        This trigger occured while the StarTracker had lost lock, so it is possibly bogus.  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 26 May 07 09:06:03 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     280447,   Seg_Num: 0
GRB_RA:          301.271d {+20h 05m 05s} (J2000),
                 301.345d {+20h 05m 23s} (current),
                 300.776d {+20h 03m 06s} (1950)
GRB_DEC:         +31.484d {+31d 29' 02"} (J2000),
                 +31.505d {+31d 30' 19"} (current),
                 +31.340d {+31d 20' 25"} (1950)
GRB_DATE:        14246 TJD;   146 DOY;   07/05/26
GRB_TIME:        31758.02 SOD {08:49:18.02} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -29.25 [deg]
GRB_THETA:        49.67 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x413
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    8.39 [sigma]
LC_URL:          sw00280447000msb.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:
Sat May 26 05:06:25 EDT 2007