TDRSS lightcurve for Trigger=868846

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 26 Oct 18 02:59:01 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     868846,   Seg_Num: 0
GRB_RA:          135.249d {+09h 01m 00s} (J2000),
                 135.427d {+09h 01m 42s} (current),
                 134.775d {+08h 59m 06s} (1950)
GRB_DEC:         -40.341d {-40d 20' 26"} (J2000),
                 -40.415d {-40d 24' 54"} (current),
                 -40.144d {-40d 08' 37"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1441 [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:        18417 TJD;   299 DOY;   18/10/26
GRB_TIME:        10666.18 SOD {02:57:46.18} UT
GRB_PHI:         -62.78 [deg]
GRB_THETA:        10.71 [deg]
SOLN_STATUS:     0x413
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    9.33 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  +0  +0  +1 -33  +0 
SUN_POSTN:       210.45d {+14h 01m 47s}  -12.39d {-12d 23' 20"}
SUN_DIST:         70.65 [deg]   Sun_angle= 5.0 [hr] (West of Sun)
MOON_POSTN:       49.28d {+03h 17m 06s}  +13.27d {+13d 16' 08"}
MOON_DIST:        95.68 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      262.76,  3.91 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      156.55,-53.84 [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 does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 32.46,-9.14 [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:     Fri 26 Oct 18 03:14:52 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     868846,   Seg_Num: 0
GRB_RA:          135.249d {+09h 01m 00s} (J2000),
                 135.427d {+09h 01m 42s} (current),
                 134.775d {+08h 59m 06s} (1950)
GRB_DEC:         -40.341d {-40d 20' 26"} (J2000),
                 -40.415d {-40d 24' 54"} (current),
                 -40.144d {-40d 08' 37"} (1950)
GRB_DATE:        18417 TJD;   299 DOY;   18/10/26
GRB_TIME:        10666.18 SOD {02:57:46.18} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -62.78 [deg]
GRB_THETA:        10.71 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x413
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    9.33 [sigma]
LC_URL:          sw00868846000msb.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:
Thu Oct 25 23:15:23 EDT 2018