TDRSS lightcurve for Trigger=204415

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 08 Apr 06 13:17:02 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     204415,   Seg_Num: 0
GRB_RA:          278.942d {+18h 35m 46s} (J2000),
                 279.045d {+18h 36m 11s} (current),
                 278.122d {+18h 32m 29s} (1950)
GRB_DEC:         -33.119d {-33d 07' 08"} (J2000),
                 -33.114d {-33d 06' 48"} (current),
                 -33.160d {-33d 09' 36"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1248 [image_cnts]
TRIGGER_DUR:     64.000 [sec] 
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        -1.12 SOD {00:00:-1.-11} UT
BKG_DUR:         0 [sec]
GRB_DATE:        13833 TJD;    98 DOY;   06/04/08
GRB_TIME:        47742.87 SOD {13:15:42.87} UT
GRB_PHI:          -7.58 [deg]
GRB_THETA:        28.41 [deg]
SOLN_STATUS:     0x19D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    5.63 [sigma]
MERIT_PARAMS:     +0  +0 +100  +6  +1  -5  +0  +1 +18  +1 
SUN_POSTN:        17.13d {+01h 08m 31s}   +7.28d {+07d 16' 36"}
SUN_DIST:        100.72 [deg]   Sun_angle= 6.5 [hr] (West of Sun)
MOON_POSTN:      145.84d {+09h 43m 22s}  +17.49d {+17d 29' 24"}
MOON_DIST:       135.32 [deg]
MOON_ILLUM:      78 [%]
GAL_COORDS:        1.42,-11.43 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      277.59, -9.92 [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.  
COMMENTS:        This matches a source in the ground catalog: X 1832-330,   delta=0.137 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        This is an interesting source.  
COMMENTS:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 218.72,-10.69 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 08 Apr 06 13:19:33 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     204415,   Seg_Num: 0
GRB_RA:          278.942d {+18h 35m 46s} (J2000),
                 279.045d {+18h 36m 11s} (current),
                 278.122d {+18h 32m 29s} (1950)
GRB_DEC:         -33.119d {-33d 07' 08"} (J2000),
                 -33.114d {-33d 06' 48"} (current),
                 -33.160d {-33d 09' 36"} (1950)
GRB_DATE:        13833 TJD;    98 DOY;   06/04/08
GRB_TIME:        47742.87 SOD {13:15:42.87} UT
TRIGGER_INDEX:   20000
GRB_PHI:          -7.58 [deg]
GRB_THETA:        28.41 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x19D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    5.63 [sigma]
LC_URL:          sw00204415000msb.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:
Sat Apr  8 09:21:05 EDT 2006