TDRSS lightcurve for Trigger=535747

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 11 Oct 12 02:54:37 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     535747,   Seg_Num: 0
GRB_RA:          272.130d {+18h 08m 31s} (J2000),
                 272.320d {+18h 09m 17s} (current),
                 271.386d {+18h 05m 33s} (1950)
GRB_DEC:         -20.410d {-20d 24' 35"} (J2000),
                 -20.407d {-20d 24' 25"} (current),
                 -20.418d {-20d 25' 05"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       475 [cnts]    Image_Peak=51 [image_cnts]
TRIGGER_DUR:     0.064 [sec] 
TRIGGER_INDEX:   10409     E_range: 15-50 keV
BKG_INTEN:       36929 [cnts]
BKG_TIME:        10446.25 SOD {02:54:06.25} UT
BKG_DUR:         8 [sec]
GRB_DATE:        16211 TJD;   285 DOY;   12/10/11
GRB_TIME:        10461.29 SOD {02:54:21.29} UT
GRB_PHI:          37.91 [deg]
GRB_THETA:        10.81 [deg]
SOLN_STATUS:     0x18D
RATE_SIGNIF:     10.39 [sigma]
IMAGE_SIGNIF:    6.73 [sigma]
MERIT_PARAMS:     +0  +0 +124  -4  +1  -3  +0  +1 -27  +0 
SUN_POSTN:       196.79d {+13h 07m 08s}   -7.14d {-07d 08' 06"}
SUN_DIST:         74.00 [deg]   Sun_angle= -5.0 [hr] (East of Sun)
MOON_POSTN:      141.43d {+09h 25m 43s}   +9.69d {+09d 41' 15"}
MOON_DIST:       131.57 [deg]
MOON_ILLUM:      23 [%]
GAL_COORDS:        9.98, -0.21 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      272.00,  3.01 [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 matches a source in the on-board catalog: Num=10201=SGR1806-20,   delta=0.028 [deg].  
COMMENTS:        This matches a source in the ground catalog: SGR1806-20,   delta=0.028 [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 = 183.47,20.05 [deg].  
COMMENTS:        This AT will self-cancel at the end of the first orbit (ie I_signif<7.0 && Trig_dur<65msec).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 11 Oct 12 03:11:34 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     535747,   Seg_Num: 0
GRB_RA:          272.130d {+18h 08m 31s} (J2000),
                 272.320d {+18h 09m 17s} (current),
                 271.386d {+18h 05m 33s} (1950)
GRB_DEC:         -20.410d {-20d 24' 35"} (J2000),
                 -20.407d {-20d 24' 25"} (current),
                 -20.418d {-20d 25' 05"} (1950)
GRB_DATE:        16211 TJD;   285 DOY;   12/10/11
GRB_TIME:        10461.29 SOD {02:54:21.29} UT
TRIGGER_INDEX:   10409
GRB_PHI:          37.91 [deg]
GRB_THETA:        10.81 [deg]
DELTA_TIME:      -63.00 [sec]
TRIGGER_DUR:     0.064 [sec] 
SOLN_STATUS:     0x18D
RATE_SIGNIF:     10.39 [sigma]
IMAGE_SIGNIF:    6.73 [sigma]
LC_URL:          sw00535747000msb.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:
Wed Oct 10 23:11:43 EDT 2012