TDRSS lightcurve for Trigger=310319

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 27 Apr 08 18:36:33 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     310319,   Seg_Num: 0
GRB_RA:          267.546d {+17h 50m 11s} (J2000),
                 267.678d {+17h 50m 43s} (current),
                 266.751d {+17h 47m 00s} (1950)
GRB_DEC:         -29.010d {-29d 00' 34"} (J2000),
                 -29.012d {-29d 00' 41"} (current),
                 -28.996d {-28d 59' 44"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       14407 [cnts]    Image_Peak=306 [image_cnts]
TRIGGER_DUR:     4.096 [sec] 
TRIGGER_INDEX:   408     E_range: 15-25 keV
BKG_INTEN:       129520 [cnts]
BKG_TIME:        66885.25 SOD {18:34:45.25} UT
BKG_DUR:         40 [sec]
GRB_DATE:        14583 TJD;   118 DOY;   08/04/27
GRB_TIME:        66944.57 SOD {18:35:44.57} UT
GRB_PHI:         -105.34 [deg]
GRB_THETA:         1.02 [deg]
SOLN_STATUS:     0x18D
RATE_SIGNIF:     8.00 [sigma]
IMAGE_SIGNIF:    6.83 [sigma]
MERIT_PARAMS:     +0  +0 +100  +2  +0  -2  +0  +1 +63  +1 
SUN_POSTN:        35.50d {+02h 21m 59s}  +14.13d {+14d 07' 48"}
SUN_DIST:        129.67 [deg]   Sun_angle= 8.5 [hr] (West of Sun)
MOON_POSTN:      300.94d {+20h 03m 45s}  -22.64d {-22d 38' 37"}
MOON_DIST:        30.50 [deg]
MOON_ILLUM:      58 [%]
GAL_COORDS:        0.45, -0.89 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      267.84, -5.59 [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 matches a source in the on-board catalog: Num=10343=SAX J1750.8-2900,   delta=0.031 [deg].  
COMMENTS:        This matches a source in the ground catalog: SAX J1750.8-2900,   delta=0.031 [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 = 176.63,14.09 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 27 Apr 08 18:52:28 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     310319,   Seg_Num: 0
GRB_RA:          267.546d {+17h 50m 11s} (J2000),
                 267.678d {+17h 50m 43s} (current),
                 266.751d {+17h 47m 00s} (1950)
GRB_DEC:         -29.010d {-29d 00' 34"} (J2000),
                 -29.012d {-29d 00' 41"} (current),
                 -28.996d {-28d 59' 44"} (1950)
GRB_DATE:        14583 TJD;   118 DOY;   08/04/27
GRB_TIME:        66944.57 SOD {18:35:44.57} UT
TRIGGER_INDEX:   408
GRB_PHI:         -105.34 [deg]
GRB_THETA:         1.02 [deg]
DELTA_TIME:      -11.00 [sec]
TRIGGER_DUR:     4.096 [sec] 
SOLN_STATUS:     0x18D
RATE_SIGNIF:     8.00 [sigma]
IMAGE_SIGNIF:    6.83 [sigma]
LC_URL:          sw00310319000msb.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:
Sun Apr 27 14:52:47 EDT 2008