TDRSS lightcurve for Trigger=450161

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 28 Mar 11 13:57:07 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     450161,   Seg_Num: 0
GRB_RA:          251.203d {+16h 44m 49s} (J2000),
                 251.253d {+16h 45m 01s} (current),
                 250.978d {+16h 43m 55s} (1950)
GRB_DEC:         +57.580d {+57d 34' 49"} (J2000),
                 +57.560d {+57d 33' 36"} (current),
                 +57.670d {+57d 40' 14"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1240 [image_cnts]
TRIGGER_DUR:     64.000 [sec] 
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        15648 TJD;    87 DOY;   11/03/28
GRB_TIME:        49241.20 SOD {13:40:41.20} UT
GRB_PHI:          79.23 [deg]
GRB_THETA:         0.01 [deg]
SOLN_STATUS:     0x9D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    6.57 [sigma]
MERIT_PARAMS:     +0  +0 +100  +6  +1  -4  +0  +0 +18  +0 
SUN_POSTN:         6.93d {+00h 27m 42s}   +2.99d {+02d 59' 32"}
SUN_DIST:        100.84 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      303.00d {+20h 12m 00s}  -17.12d {-17d 07' 07"}
MOON_DIST:        86.05 [deg]
MOON_ILLUM:      30 [%]
GAL_COORDS:       86.71, 39.44 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      216.93, 77.52 [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 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: Num=20158=(null) (probably an AT_Slot).  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is not a GRB.  
COMMENTS:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 28 Mar 11 14:00:59 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     450161,   Seg_Num: 0
GRB_RA:          251.203d {+16h 44m 49s} (J2000),
                 251.253d {+16h 45m 01s} (current),
                 250.978d {+16h 43m 55s} (1950)
GRB_DEC:         +57.580d {+57d 34' 49"} (J2000),
                 +57.560d {+57d 33' 36"} (current),
                 +57.670d {+57d 40' 14"} (1950)
GRB_DATE:        15648 TJD;    87 DOY;   11/03/28
GRB_TIME:        49241.20 SOD {13:40:41.20} UT
TRIGGER_INDEX:   20000
GRB_PHI:          79.23 [deg]
GRB_THETA:         0.01 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x9D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    6.57 [sigma]
LC_URL:          sw00450161000msb.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:
Mon Mar 28 10:02:10 EDT 2011