TDRSS lightcurve for Trigger=823001

Notes:

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

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 07 Apr 18 01:55:37 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     823001,   Seg_Num: 0
GRB_RA:           35.241d {+02h 20m 58s} (J2000),
                  35.514d {+02h 22m 03s} (current),
                  34.495d {+02h 17m 59s} (1950)
GRB_DEC:         +33.499d {+33d 29' 56"} (J2000),
                 +33.582d {+33d 34' 54"} (current),
                 +33.270d {+33d 16' 14"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       16130 [cnts]    Image_Peak=422 [image_cnts]
TRIGGER_DUR:     4.096 [sec] 
TRIGGER_INDEX:   291     E_range: 15-50 keV
BKG_INTEN:       145632 [cnts]
BKG_TIME:        6835.25 SOD {01:53:55.25} UT
BKG_DUR:         40 [sec]
GRB_DATE:        18215 TJD;    97 DOY;   18/04/07
GRB_TIME:        6889.78 SOD {01:54:49.78} UT
GRB_PHI:         -98.28 [deg]
GRB_THETA:        25.74 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     7.74 [sigma]
IMAGE_SIGNIF:    9.45 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +1  +0 -100  +0 -84  +0 
SUN_POSTN:        15.87d {+01h 03m 28s}   +6.76d {+06d 45' 33"}
SUN_DIST:         32.41 [deg]   Sun_angle= -1.3 [hr] (East of Sun)
MOON_POSTN:      274.15d {+18h 16m 37s}  -20.20d {-20d 12' 08"}
MOON_DIST:       126.72 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:      143.58,-25.76 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       44.14, 18.36 [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:        This trigger occurred at longitude,latitude = 176.17,6.89 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 07 Apr 18 02:11:57 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     823001,   Seg_Num: 0
GRB_RA:           35.241d {+02h 20m 58s} (J2000),
                  35.514d {+02h 22m 03s} (current),
                  34.495d {+02h 17m 59s} (1950)
GRB_DEC:         +33.499d {+33d 29' 56"} (J2000),
                 +33.582d {+33d 34' 54"} (current),
                 +33.270d {+33d 16' 14"} (1950)
GRB_DATE:        18215 TJD;    97 DOY;   18/04/07
GRB_TIME:        6889.78 SOD {01:54:49.78} UT
TRIGGER_INDEX:   291
GRB_PHI:         -98.28 [deg]
GRB_THETA:        25.74 [deg]
DELTA_TIME:      -11.00 [sec]
TRIGGER_DUR:     4.096 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     7.74 [sigma]
IMAGE_SIGNIF:    9.45 [sigma]
LC_URL:          sw00823001000msb.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:
Fri Apr  6 22:12:59 EDT 2018