TDRSS lightcurve for Trigger=689956

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 09 Jun 16 02:38:04 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     689956,   Seg_Num: 0
GRB_RA:          266.422d {+17h 45m 41s} (J2000),
                 266.683d {+17h 46m 44s} (current),
                 265.627d {+17h 42m 31s} (1950)
GRB_DEC:         -29.008d {-29d 00' 29"} (J2000),
                 -29.014d {-29d 00' 49"} (current),
                 -28.989d {-28d 59' 20"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=11781 [image_cnts]
TRIGGER_DUR:     944.000 [sec]   (=15.7 [min])
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:        17548 TJD;   161 DOY;   16/06/09
GRB_TIME:        8463.61 SOD {02:21:03.61} UT
GRB_PHI:         -85.24 [deg]
GRB_THETA:         8.29 [deg]
SOLN_STATUS:     0x1000019D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    6.91 [sigma]
MERIT_PARAMS:     +0  +0 +95  +7  +1  -3  +0  +1 +98  +0 
SUN_POSTN:        77.72d {+05h 10m 53s}  +22.96d {+22d 57' 23"}
SUN_DIST:        169.93 [deg]   Sun_angle= 11.4 [hr] (West of Sun)
MOON_POSTN:      132.85d {+08h 51m 25s}  +14.56d {+14d 33' 33"}
MOON_DIST:       135.08 [deg]
MOON_ILLUM:      20 [%]
GAL_COORDS:      359.95, -0.05 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      266.86, -5.61 [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=15314=(null) (probably an AT_Slot).  
COMMENTS:        This matches a source in the ground catalog: IGR J17456-2901,   delta=0.016 [deg].  
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:     Thu 09 Jun 16 02:46:24 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     689956,   Seg_Num: 0
GRB_RA:          266.422d {+17h 45m 41s} (J2000),
                 266.683d {+17h 46m 44s} (current),
                 265.627d {+17h 42m 31s} (1950)
GRB_DEC:         -29.008d {-29d 00' 29"} (J2000),
                 -29.014d {-29d 00' 49"} (current),
                 -28.989d {-28d 59' 20"} (1950)
GRB_DATE:        17548 TJD;   161 DOY;   16/06/09
GRB_TIME:        8463.61 SOD {02:21:03.61} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -85.24 [deg]
GRB_THETA:         8.29 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     944.000 [sec]   (=15.7 [min])
SOLN_STATUS:     0x19D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    6.91 [sigma]
LC_URL:          sw00689956000msb.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:
Wed Jun  8 22:47:02 EDT 2016