TDRSS lightcurve for Trigger=558631

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 20 Jun 13 02:27:50 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     558631,   Seg_Num: 0
GRB_RA:          271.805d {+18h 07m 13s} (J2000),
                 272.008d {+18h 08m 02s} (current),
                 271.050d {+18h 04m 12s} (1950)
GRB_DEC:         -22.291d {-22d 17' 26"} (J2000),
                 -22.288d {-22d 17' 17"} (current),
                 -22.298d {-22d 17' 51"} (1950)
GRB_ERROR:       4.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=2556 [image_cnts]
TRIGGER_DUR:     320.000 [sec]   (=5.3 [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:        16463 TJD;   171 DOY;   13/06/20
GRB_TIME:        8517.30 SOD {02:21:57.30} UT
GRB_PHI:         115.62 [deg]
GRB_THETA:        16.21 [deg]
SOLN_STATUS:     0x99D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    5.84 [sigma]
MERIT_PARAMS:     +0  +0 +124  +6  +1  -5  +0  +1 +99  +1 
SUN_POSTN:        88.85d {+05h 55m 24s}  +23.43d {+23d 25' 58"}
SUN_DIST:        176.87 [deg]   Sun_angle= 11.8 [hr] (West of Sun)
MOON_POSTN:      219.22d {+14h 36m 53s}  -15.61d {-15d 36' 38"}
MOON_DIST:        50.13 [deg]
MOON_ILLUM:      84 [%]
GAL_COORDS:        8.19, -0.86 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      271.67,  1.14 [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=15750=(null) (probably an AT_Slot).  
COMMENTS:        This matches a source in the ground catalog: SAX_J1806.5-221,   delta=0.176 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:           
COMMENTS:        The IMAGE_SIGNIF is VERY LOW, this is very likely not real.  
COMMENTS:        This trigger occurred at longitude,latitude = 6.26,19.57 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 20 Jun 13 02:40:15 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     558631,   Seg_Num: 0
GRB_RA:          271.805d {+18h 07m 13s} (J2000),
                 272.008d {+18h 08m 02s} (current),
                 271.050d {+18h 04m 12s} (1950)
GRB_DEC:         -22.291d {-22d 17' 26"} (J2000),
                 -22.288d {-22d 17' 17"} (current),
                 -22.298d {-22d 17' 51"} (1950)
GRB_DATE:        16463 TJD;   171 DOY;   13/06/20
GRB_TIME:        8517.30 SOD {02:21:57.30} UT
TRIGGER_INDEX:   20000
GRB_PHI:         115.62 [deg]
GRB_THETA:        16.21 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     320.000 [sec]   (=5.3 [min])
SOLN_STATUS:     0x99D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    5.84 [sigma]
LC_URL:          sw00558631000msb.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 Jun 19 22:40:43 EDT 2013