TDRSS lightcurve for Trigger=348781

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 09 Apr 09 03:17:34 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     348781,   Seg_Num: 0
GRB_RA:          268.829d {+17h 55m 19s} (J2000),
                 268.928d {+17h 55m 43s} (current),
                 268.293d {+17h 53m 10s} (1950)
GRB_DEC:         +20.664d {+20d 39' 49"} (J2000),
                 +20.663d {+20d 39' 46"} (current),
                 +20.671d {+20d 40' 14"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       28208 [cnts]    Image_Peak=329 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   157     E_range: 50-350 keV
BKG_INTEN:       179685 [cnts]
BKG_TIME:        11755.35 SOD {03:15:55.35} UT
BKG_DUR:         8 [sec]
GRB_DATE:        14930 TJD;    99 DOY;   09/04/09
GRB_TIME:        11774.30 SOD {03:16:14.30} UT
GRB_PHI:         -11.40 [deg]
GRB_THETA:        47.32 [deg]
SOLN_STATUS:     0xC3
RATE_SIGNIF:     23.79 [sigma]
IMAGE_SIGNIF:    6.61 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +3  -4  +0  +0 +25  +0 
SUN_POSTN:        17.92d {+01h 11m 40s}   +7.60d {+07d 35' 46"}
SUN_DIST:        104.78 [deg]   Sun_angle= 7.3 [hr] (West of Sun)
MOON_POSTN:      190.51d {+12h 42m 03s}   -9.59d {-09d 35' 15"}
MOON_DIST:        82.73 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       45.99, 21.27 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      268.47, 44.10 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 60 sec past the end of the trigger integration interval;  
COMMENTS:        probably due to it occurring during a Malindi downlink session.  
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:        This trigger occurred during a high background rate interval.  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 09 Apr 09 03:21:59 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     348781,   Seg_Num: 0
GRB_RA:          268.829d {+17h 55m 19s} (J2000),
                 268.928d {+17h 55m 43s} (current),
                 268.293d {+17h 53m 10s} (1950)
GRB_DEC:         +20.664d {+20d 39' 49"} (J2000),
                 +20.663d {+20d 39' 46"} (current),
                 +20.671d {+20d 40' 14"} (1950)
GRB_DATE:        14930 TJD;    99 DOY;   09/04/09
GRB_TIME:        11774.30 SOD {03:16:14.30} UT
TRIGGER_INDEX:   157
GRB_PHI:         -11.40 [deg]
GRB_THETA:        47.32 [deg]
DELTA_TIME:      26.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0xC3
RATE_SIGNIF:     23.79 [sigma]
IMAGE_SIGNIF:    6.61 [sigma]
LC_URL:          sw00348781000msb.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

Plot creation:
Wed Apr  8 23:22:04 EDT 2009