TDRSS lightcurve for Trigger=146970

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 21 Jul 05 04:31:17 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     146970,   Seg_Num: 0
GRB_RA:          253.445d {+16h 53m 47s} (J2000),
                 253.532d {+16h 54m 08s} (current),
                 252.661d {+16h 50m 39s} (1950)
GRB_DEC:         -28.390d {-28d 23' 22"} (J2000),
                 -28.398d {-28d 23' 53"} (current),
                 -28.308d {-28d 18' 29"} (1950)
GRB_ERROR:       4.00 [arcmin radius, statistical only]
GRB_INTEN:       21583 [cnts]    Image_Peak=195 [image_cnts]
TRIGGER_DUR:     5.504 [sec]
TRIGGER_INDEX:   489     E_range: 50-350 keV
BKG_INTEN:       181877 [cnts]
BKG_TIME:        16088.00 SOD {04:28:08.00} UT
BKG_DUR:         48 [sec]
GRB_DATE:        13572 TJD;   202 DOY;   05/07/21
GRB_TIME:        16154.28 SOD {04:29:14.28} UT
GRB_PHI:          91.37 [deg]
GRB_THETA:        39.08 [deg]
SOLN_STATUS:     0x83
RATE_SIGNIF:     15.09 [sigma]
IMAGE_SIGNIF:    6.22 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +3  +4  +0  +1 +72  +1 
SUN_POSTN:       120.64d {+08h 02m 34s}  +20.45d {+20d 27' 18"}
SUN_DIST:        136.65 [deg]
MOON_POSTN:      297.43d {+19h 49m 44s}  -26.06d {-26d 03' 47"}
MOON_DIST:        38.89 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      353.95,  9.66 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      255.41, -5.79 [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:        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 21 Jul 05 04:34:25 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     146970,   Seg_Num: 0
GRB_RA:          253.445d {+16h 53m 47s} (J2000),
                 253.532d {+16h 54m 08s} (current),
                 252.661d {+16h 50m 39s} (1950)
GRB_DEC:         -28.390d {-28d 23' 22"} (J2000),
                 -28.398d {-28d 23' 53"} (current),
                 -28.308d {-28d 18' 29"} (1950)
GRB_DATE:        13572 TJD;   202 DOY;   05/07/21
GRB_TIME:        16154.28 SOD {04:29:14.28} UT
TRIGGER_INDEX:   489
GRB_PHI:          91.37 [deg]
GRB_THETA:        39.08 [deg]
DELTA_TIME:      65504.00 [sec]
LC_URL:          sw00146970000msb.lc
SUN_POSTN:       120.64d {+08h 02m 34s}  +20.45d {+20d 27' 18"}
SUN_DIST:        136.65 [deg]
MOON_POSTN:      297.43d {+19h 49m 44s}  -26.06d {-26d 03' 47"}
MOON_DIST:        38.89 [deg]

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:
Thu Jul 21 00:38:04 EDT 2005