TDRSS lightcurve for Trigger=661775

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 27 Oct 15 03:58:42 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     661775,   Seg_Num: 0
GRB_RA:          272.491d {+18h 09m 58s} (J2000),
                 272.533d {+18h 10m 08s} (current),
                 272.361d {+18h 09m 27s} (1950)
GRB_DEC:         +61.381d {+61d 22' 51"} (J2000),
                 +61.385d {+61d 23' 05"} (current),
                 +61.369d {+61d 22' 08"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       2699 [cnts]    Image_Peak=136 [image_cnts]
TRIGGER_DUR:     0.512 [sec] 
TRIGGER_INDEX:   127     E_range: 50-350 keV
BKG_INTEN:       23807 [cnts]
BKG_TIME:        14288.67 SOD {03:58:08.67} UT
BKG_DUR:         8 [sec]
GRB_DATE:        17322 TJD;   300 DOY;   15/10/27
GRB_TIME:        14304.15 SOD {03:58:24.15} UT
GRB_PHI:           1.16 [deg]
GRB_THETA:        51.77 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     29.15 [sigma]
IMAGE_SIGNIF:    9.26 [sigma]
MERIT_PARAMS:     +1  +0  +0  -1  +3  +0  +0  +0  -3  +0 
SUN_POSTN:       211.18d {+14h 04m 44s}  -12.65d {-12d 39' 03"}
SUN_DIST:         88.18 [deg]   Sun_angle= -4.1 [hr] (East of Sun)
MOON_POSTN:       27.44d {+01h 49m 46s}   +8.67d {+08d 39' 55"}
MOON_DIST:        93.85 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       90.51, 28.49 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      283.05, 84.71 [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 = 136.64,-16.52 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(0.0<100sec) coincident with the FERMI_GBM event (trignum=467611108).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 27 Oct 15 04:15:12 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     661775,   Seg_Num: 0
GRB_RA:          272.491d {+18h 09m 58s} (J2000),
                 272.533d {+18h 10m 08s} (current),
                 272.361d {+18h 09m 27s} (1950)
GRB_DEC:         +61.381d {+61d 22' 51"} (J2000),
                 +61.385d {+61d 23' 05"} (current),
                 +61.369d {+61d 22' 08"} (1950)
GRB_DATE:        17322 TJD;   300 DOY;   15/10/27
GRB_TIME:        14304.15 SOD {03:58:24.15} UT
TRIGGER_INDEX:   127
GRB_PHI:           1.16 [deg]
GRB_THETA:        51.77 [deg]
DELTA_TIME:      52.00 [sec]
TRIGGER_DUR:     0.512 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     29.15 [sigma]
IMAGE_SIGNIF:    9.26 [sigma]
LC_URL:          sw00661775000msb.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:
Tue Oct 27 00:15:22 EDT 2015