TDRSS lightcurve for Trigger=818110

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 26 Mar 18 16:23:02 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     818110,   Seg_Num: 0
GRB_RA:          135.501d {+09h 02m 00s} (J2000),
                 135.673d {+09h 02m 42s} (current),
                 135.029d {+09h 00m 07s} (1950)
GRB_DEC:         -40.760d {-40d 45' 35"} (J2000),
                 -40.833d {-40d 49' 56"} (current),
                 -40.562d {-40d 33' 43"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1225 [image_cnts]
TRIGGER_DUR:     64.000 [sec] 
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:        18203 TJD;    85 DOY;   18/03/26
GRB_TIME:        58907.31 SOD {16:21:47.31} UT
GRB_PHI:           9.90 [deg]
GRB_THETA:        13.02 [deg]
SOLN_STATUS:     0x513
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.53 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  -2  +0  +1 +51  +0 
SUN_POSTN:         5.47d {+00h 21m 54s}   +2.37d {+02d 22' 05"}
SUN_DIST:        120.99 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:      124.88d {+08h 19m 31s}  +18.67d {+18d 40' 06"}
MOON_DIST:        60.34 [deg]
MOON_ILLUM:      73 [%]
GAL_COORDS:      263.20,  3.78 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      157.18,-54.11 [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 does not match any source in the on-board catalog.  
COMMENTS:        This matches a source in the ground catalog: Vela_X-1,   delta=0.206 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 108.59,-13.23 [deg].  
COMMENTS:           
COMMENTS:        This trigger occured while the StarTracker had lost lock, so it is possibly bogus.  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 26 Mar 18 16:39:33 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     818110,   Seg_Num: 0
GRB_RA:          135.501d {+09h 02m 00s} (J2000),
                 135.673d {+09h 02m 42s} (current),
                 135.029d {+09h 00m 07s} (1950)
GRB_DEC:         -40.760d {-40d 45' 35"} (J2000),
                 -40.833d {-40d 49' 56"} (current),
                 -40.562d {-40d 33' 43"} (1950)
GRB_DATE:        18203 TJD;    85 DOY;   18/03/26
GRB_TIME:        58907.31 SOD {16:21:47.31} UT
TRIGGER_INDEX:   20000
GRB_PHI:           9.90 [deg]
GRB_THETA:        13.02 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x513
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.53 [sigma]
LC_URL:          sw00818110000msb.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:
Mon Mar 26 12:39:42 EDT 2018