TDRSS lightcurve for Trigger=309665

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 20 Apr 08 04:13:03 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     309665,   Seg_Num: 0
GRB_RA:          152.639d {+10h 10m 33s} (J2000),
                 152.765d {+10h 11m 04s} (current),
                 151.876d {+10h 07m 30s} (1950)
GRB_DEC:         +43.242d {+43d 14' 33"} (J2000),
                 +43.201d {+43d 12' 05"} (current),
                 +43.489d {+43d 29' 20"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       377 [cnts]    Image_Peak=47 [image_cnts]
TRIGGER_DUR:     0.064 [sec] 
TRIGGER_INDEX:   10427     E_range: 50-350 keV
BKG_INTEN:       28886 [cnts]
BKG_TIME:        15157.26 SOD {04:12:37.26} UT
BKG_DUR:         8 [sec]
GRB_DATE:        14576 TJD;   111 DOY;   08/04/20
GRB_TIME:        15167.18 SOD {04:12:47.18} UT
GRB_PHI:         -92.72 [deg]
GRB_THETA:         2.38 [deg]
SOLN_STATUS:     0x83
RATE_SIGNIF:     8.88 [sigma]
IMAGE_SIGNIF:    6.61 [sigma]
MERIT_PARAMS:     +1  +0  +0  -4  +3  -1  +0  +0 +26  +1 
SUN_POSTN:        28.35d {+01h 53m 24s}  +11.63d {+11d 37' 55"}
SUN_DIST:        105.40 [deg]   Sun_angle= -8.3 [hr] (East of Sun)
MOON_POSTN:      203.80d {+13h 35m 13s}  -14.72d {-14d 43' 20"}
MOON_DIST:        74.38 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      175.81, 53.84 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      138.14, 29.69 [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 = 204.84,-19.42 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 20 Apr 08 04:18:03 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     309665,   Seg_Num: 0
GRB_RA:          152.639d {+10h 10m 33s} (J2000),
                 152.765d {+10h 11m 04s} (current),
                 151.876d {+10h 07m 30s} (1950)
GRB_DEC:         +43.242d {+43d 14' 33"} (J2000),
                 +43.201d {+43d 12' 05"} (current),
                 +43.489d {+43d 29' 20"} (1950)
GRB_DATE:        14576 TJD;   111 DOY;   08/04/20
GRB_TIME:        15167.20 SOD {04:12:47.20} UT
TRIGGER_INDEX:   10427
GRB_PHI:         -92.72 [deg]
GRB_THETA:         2.38 [deg]
DELTA_TIME:      -32.00 [sec]
TRIGGER_DUR:     0.064 [sec] 
SOLN_STATUS:     0x83
RATE_SIGNIF:     8.88 [sigma]
IMAGE_SIGNIF:    6.61 [sigma]
LC_URL:          sw00309665000msb.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:
Sun Apr 20 00:29:06 EDT 2008