TDRSS lightcurve for Trigger=420247

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 23 Apr 10 00:35:22 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     420247,   Seg_Num: 0
GRB_RA:          136.477d {+09h 05m 54s} (J2000),
                 136.625d {+09h 06m 30s} (current),
                 135.760d {+09h 03m 02s} (1950)
GRB_DEC:         +21.479d {+21d 28' 46"} (J2000),
                 +21.438d {+21d 26' 16"} (current),
                 +21.680d {+21d 40' 48"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       15361 [cnts]    Image_Peak=1406 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   155     E_range: 50-350 keV
BKG_INTEN:       45965 [cnts]
BKG_TIME:        2082.26 SOD {00:34:42.26} UT
BKG_DUR:         8 [sec]
GRB_DATE:        15309 TJD;   113 DOY;   10/04/23
GRB_TIME:        2099.16 SOD {00:34:59.16} UT
GRB_PHI:         179.49 [deg]
GRB_THETA:        32.26 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     116.22 [sigma]
IMAGE_SIGNIF:    21.49 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +3  +7  -5  +0 +17  +0 
SUN_POSTN:        30.56d {+02h 02m 15s}  +12.43d {+12d 25' 51"}
SUN_DIST:         99.95 [deg]   Sun_angle= -7.1 [hr] (East of Sun)
MOON_POSTN:      140.91d {+09h 23m 38s}  +12.19d {+12d 11' 08"}
MOON_DIST:        10.12 [deg]
MOON_ILLUM:      65 [%]
GAL_COORDS:      206.24, 38.72 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      132.61,  4.65 [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:        This trigger occurred at longitude,latitude = 352.83,-6.98 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 23 Apr 10 00:58:47 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     420247,   Seg_Num: 0
GRB_RA:          136.477d {+09h 05m 54s} (J2000),
                 136.625d {+09h 06m 30s} (current),
                 135.760d {+09h 03m 02s} (1950)
GRB_DEC:         +21.479d {+21d 28' 46"} (J2000),
                 +21.438d {+21d 26' 16"} (current),
                 +21.680d {+21d 40' 48"} (1950)
GRB_DATE:        15309 TJD;   113 DOY;   10/04/23
GRB_TIME:        2099.16 SOD {00:34:59.16} UT
TRIGGER_INDEX:   155
GRB_PHI:         179.49 [deg]
GRB_THETA:        32.26 [deg]
DELTA_TIME:      71.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     116.22 [sigma]
IMAGE_SIGNIF:    21.49 [sigma]
LC_URL:          sw00420247000msb.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

Plot creation:
Thu Apr 22 21:01:25 EDT 2010