TDRSS lightcurve for Trigger=180884

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 09 Feb 06 10:52:40 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     180884,   Seg_Num: 0
GRB_RA:          283.381d {+18h 53m 31s} (J2000),
                 283.459d {+18h 53m 50s} (current),
                 282.736d {+18h 50m 57s} (1950)
GRB_DEC:          -0.860d {-00d 51' 36"} (J2000),
                  -0.852d {-00d 51' 07"} (current),
                  -0.923d {-00d 55' 22"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=5712 [image_cnts]
TRIGGER_DUR:     496.000 [sec]   (=8.3 [min])
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        -1.00 SOD {00:00:-1.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        13775 TJD;    40 DOY;   06/02/09
GRB_TIME:        37854.99 SOD {10:30:54.99} UT
GRB_PHI:         -141.32 [deg]
GRB_THETA:        10.39 [deg]
SOLN_STATUS:     0x9D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    6.51 [sigma]
MERIT_PARAMS:     +0  +0 +100  +8  +1  -4 -100  +1 -74  +1 
SUN_POSTN:       322.95d {+21h 31m 47s}  -14.64d {-14d 38' 24"}
SUN_DIST:         41.38 [deg]   Sun_angle= 2.6 [hr] (West of Sun)
MOON_POSTN:      100.50d {+06h 41m 59s}  +28.24d {+28d 14' 36"}
MOON_DIST:       152.46 [deg]
MOON_ILLUM:      88 [%]
GAL_COORDS:       32.40, -0.86 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      284.44, 21.91 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 30 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.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is not a GRB.  
COMMENTS:        This is an interesting source.  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 09 Feb 06 10:53:01 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     180884,   Seg_Num: 0
GRB_RA:          283.381d {+18h 53m 31s} (J2000),
                 283.459d {+18h 53m 50s} (current),
                 282.736d {+18h 50m 57s} (1950)
GRB_DEC:          -0.860d {-00d 51' 36"} (J2000),
                  -0.852d {-00d 51' 07"} (current),
                  -0.923d {-00d 55' 22"} (1950)
GRB_DATE:        13775 TJD;    40 DOY;   06/02/09
GRB_TIME:        37854.99 SOD {10:30:54.99} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -141.32 [deg]
GRB_THETA:        10.39 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     496.000 [sec]   (=20.7 [min])
SOLN_STATUS:     0x9D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    6.51 [sigma]
LC_URL:          sw00180884000msb.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

Plot creation:
Thu Feb  9 05:54:06 EST 2006