TDRSS lightcurve for Trigger=645176

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 20 Jun 15 13:32:15 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     645176,   Seg_Num: 0
GRB_RA:          306.002d {+20h 24m 00s} (J2000),
                 306.153d {+20h 24m 37s} (current),
                 305.512d {+20h 22m 03s} (1950)
GRB_DEC:         +33.859d {+33d 51' 33"} (J2000),
                 +33.910d {+33d 54' 36"} (current),
                 +33.697d {+33d 41' 47"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=301726 [image_cnts]
TRIGGER_DUR:     192.000 [sec]   (=3.2 [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:        17193 TJD;   171 DOY;   15/06/20
GRB_TIME:        48506.25 SOD {13:28:26.25} UT
GRB_PHI:         -125.96 [deg]
GRB_THETA:         0.04 [deg]
SOLN_STATUS:     0x1D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    27.15 [sigma]
MERIT_PARAMS:     +0  +0 +100  +8  +1  +9  +0  +1 +38  +0 
SUN_POSTN:        88.83d {+05h 55m 18s}  +23.43d {+23d 25' 56"}
SUN_DIST:        112.56 [deg]   Sun_angle= 9.5 [hr] (West of Sun)
MOON_POSTN:      137.50d {+09h 09m 59s}  +12.36d {+12d 21' 48"}
MOON_DIST:       132.48 [deg]
MOON_ILLUM:      16 [%]
GAL_COORDS:       73.11, -2.09 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      321.04, 51.11 [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=23949=(null) (probably an AT_Slot).  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is not a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 235.71,3.05 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 20 Jun 15 13:45:10 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     645176,   Seg_Num: 0
GRB_RA:          306.002d {+20h 24m 00s} (J2000),
                 306.153d {+20h 24m 37s} (current),
                 305.512d {+20h 22m 03s} (1950)
GRB_DEC:         +33.859d {+33d 51' 33"} (J2000),
                 +33.910d {+33d 54' 36"} (current),
                 +33.697d {+33d 41' 47"} (1950)
GRB_DATE:        17193 TJD;   171 DOY;   15/06/20
GRB_TIME:        48506.25 SOD {13:28:26.25} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -125.96 [deg]
GRB_THETA:         0.04 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     192.000 [sec]   (=3.2 [min])
SOLN_STATUS:     0x1D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    27.15 [sigma]
LC_URL:          sw00645176000msb.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:
Sat Jun 20 09:45:22 EDT 2015