TDRSS lightcurve for Trigger=668879

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 30 Dec 15 22:59:40 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     668879,   Seg_Num: 0
GRB_RA:          306.016d {+20h 24m 04s} (J2000),
                 306.172d {+20h 24m 41s} (current),
                 305.526d {+20h 22m 06s} (1950)
GRB_DEC:         +33.850d {+33d 51' 00"} (J2000),
                 +33.903d {+33d 54' 09"} (current),
                 +33.687d {+33d 41' 14"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       23857 [cnts]    Image_Peak=481 [image_cnts]
TRIGGER_DUR:     8.192 [sec] 
TRIGGER_INDEX:   477     E_range: 25-100 keV
BKG_INTEN:       171222 [cnts]
BKG_TIME:        81800.37 SOD {22:43:20.37} UT
BKG_DUR:         64 [sec]
GRB_DATE:        17386 TJD;   364 DOY;   15/12/30
GRB_TIME:        81891.50 SOD {22:44:51.50} UT
GRB_PHI:         148.52 [deg]
GRB_THETA:         0.06 [deg]
SOLN_STATUS:     0x1000010D
RATE_SIGNIF:     10.14 [sigma]
IMAGE_SIGNIF:    7.91 [sigma]
MERIT_PARAMS:     +0  +0 +113  +3  +2  -2  +0  +1 -46  +0 
SUN_POSTN:       279.71d {+18h 38m 50s}  -23.14d {-23d 08' 10"}
SUN_DIST:         62.35 [deg]   Sun_angle= -1.8 [hr] (East of Sun)
MOON_POSTN:      165.15d {+11h 00m 37s}   +5.37d {+05d 22' 02"}
MOON_DIST:       126.17 [deg]
MOON_ILLUM:      71 [%]
GAL_COORDS:       73.10, -2.10 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      321.05, 51.10 [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 a rate trigger.  
COMMENTS:        A point_source was found.  
COMMENTS:        This matches a source in the on-board catalog: Num=10763=(null) (probably an AT_Slot).  
COMMENTS:        This matches a source in the ground catalog: V_404_Cyg,   delta=0.017 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 259.04,19.42 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 30 Dec 15 23:04:47 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     668879,   Seg_Num: 0
GRB_RA:          306.016d {+20h 24m 04s} (J2000),
                 306.172d {+20h 24m 41s} (current),
                 305.526d {+20h 22m 06s} (1950)
GRB_DEC:         +33.850d {+33d 51' 00"} (J2000),
                 +33.903d {+33d 54' 09"} (current),
                 +33.687d {+33d 41' 14"} (1950)
GRB_DATE:        17386 TJD;   364 DOY;   15/12/30
GRB_TIME:        81891.50 SOD {22:44:51.50} UT
TRIGGER_INDEX:   477
GRB_PHI:         148.52 [deg]
GRB_THETA:         0.06 [deg]
DELTA_TIME:      6.00 [sec]
TRIGGER_DUR:     8.192 [sec] 
SOLN_STATUS:     0x10D
RATE_SIGNIF:     10.14 [sigma]
IMAGE_SIGNIF:    7.91 [sigma]
LC_URL:          sw00668879000msb.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

Plot creation:
Wed Dec 30 18:05:03 EST 2015