TDRSS lightcurve for Trigger=501485

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 26 Aug 11 08:31:27 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     501485,   Seg_Num: 0
GRB_RA:          264.165d {+17h 36m 40s} (J2000),
                 264.348d {+17h 37m 23s} (current),
                 263.381d {+17h 33m 31s} (1950)
GRB_DEC:         -27.375d {-27d 22' 29"} (J2000),
                 -27.381d {-27d 22' 52"} (current),
                 -27.345d {-27d 20' 40"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1519 [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:        15799 TJD;   238 DOY;   11/08/26
GRB_TIME:        30608.70 SOD {08:30:08.70} UT
GRB_PHI:         -48.11 [deg]
GRB_THETA:         3.47 [deg]
SOLN_STATUS:     0x19D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    6.59 [sigma]
MERIT_PARAMS:     +0  +0 +124  +6  +1  -4  +0  +1 +37  +0 
SUN_POSTN:       154.73d {+10h 18m 55s}  +10.48d {+10d 29' 02"}
SUN_DIST:        112.14 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      116.88d {+07h 47m 31s}  +18.21d {+18d 12' 31"}
MOON_DIST:       148.74 [deg]
MOON_ILLUM:      10 [%]
GAL_COORDS:        0.28,  2.50 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      264.81, -4.04 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
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=15709=(null) (probably an AT_Slot).  
COMMENTS:        This matches a source in the ground catalog: IGR_J17364-2711,   delta=0.180 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 175.29,1.35 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 26 Aug 11 08:47:13 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     501485,   Seg_Num: 0
GRB_RA:          264.165d {+17h 36m 40s} (J2000),
                 264.348d {+17h 37m 23s} (current),
                 263.381d {+17h 33m 31s} (1950)
GRB_DEC:         -27.375d {-27d 22' 29"} (J2000),
                 -27.381d {-27d 22' 52"} (current),
                 -27.345d {-27d 20' 40"} (1950)
GRB_DATE:        15799 TJD;   238 DOY;   11/08/26
GRB_TIME:        30608.70 SOD {08:30:08.70} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -48.11 [deg]
GRB_THETA:         3.47 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x19D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    6.59 [sigma]
LC_URL:          sw00501485000msb.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

Extended TDRSS lc No.4

Plot creation:
Fri Aug 26 04:47:23 EDT 2011