TDRSS lightcurve for Trigger=785510

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 02 Nov 17 15:21:24 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     785510,   Seg_Num: 0
GRB_RA:          288.103d {+19h 12m 25s} (J2000),
                 288.293d {+19h 13m 10s} (current),
                 287.572d {+19h 10m 17s} (1950)
GRB_DEC:         +22.438d {+22d 26' 16"} (J2000),
                 +22.469d {+22d 28' 08"} (current),
                 +22.353d {+22d 21' 09"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       26455 [cnts]    Image_Peak=295 [image_cnts]
TRIGGER_DUR:     8.192 [sec] 
TRIGGER_INDEX:   335     E_range: 25-100 keV
BKG_INTEN:       195448 [cnts]
BKG_TIME:        55140.06 SOD {15:19:00.06} UT
BKG_DUR:         64 [sec]
GRB_DATE:        18059 TJD;   306 DOY;   17/11/02
GRB_TIME:        55229.59 SOD {15:20:29.59} UT
GRB_PHI:          59.33 [deg]
GRB_THETA:        37.02 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     9.32 [sigma]
IMAGE_SIGNIF:    7.05 [sigma]
MERIT_PARAMS:     +1  +0  +0  +3  +2  -3  +0  +1 -20  +0 
SUN_POSTN:       217.98d {+14h 31m 55s}  -14.94d {-14d 56' 13"}
SUN_DIST:         78.33 [deg]   Sun_angle= -4.7 [hr] (East of Sun)
MOON_POSTN:       19.01d {+01h 16m 01s}   +3.46d {+03d 27' 43"}
MOON_DIST:        89.34 [deg]
MOON_ILLUM:      97 [%]
GAL_COORDS:       55.27,  5.67 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      293.70, 44.40 [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 = 31.57,17.45 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 02 Nov 17 15:39:47 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     785510,   Seg_Num: 0
GRB_RA:          288.103d {+19h 12m 25s} (J2000),
                 288.293d {+19h 13m 10s} (current),
                 287.572d {+19h 10m 17s} (1950)
GRB_DEC:         +22.438d {+22d 26' 16"} (J2000),
                 +22.469d {+22d 28' 08"} (current),
                 +22.353d {+22d 21' 09"} (1950)
GRB_DATE:        18059 TJD;   306 DOY;   17/11/02
GRB_TIME:        55229.59 SOD {15:20:29.59} UT
TRIGGER_INDEX:   335
GRB_PHI:          59.33 [deg]
GRB_THETA:        37.02 [deg]
DELTA_TIME:      6.00 [sec]
TRIGGER_DUR:     8.192 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     9.32 [sigma]
IMAGE_SIGNIF:    7.05 [sigma]
LC_URL:          sw00785510000msb.lc

GCN template for BAT paragraph

  • Click here!
    At 15:20:29 UT, the Swift Burst Alert Telescope (BAT) triggered and
    located GRB 171102 ***A*** (trigger=785510).  Swift slewed immediately to the burst.
    The BAT on-board calculated location is 
    RA, Dec 288.103, +22.438 which is 
       RA(J2000) = 19h 12m 25s
       Dec(J2000) = +22d 26' 16"
    with an uncertainty of 3 arcmin (radius, 90% containment, including 
    systematic uncertainty).  The BAT light curve showed a [**double-peaked**]
    structure with a duration of about TTT sec.  The peak count rate
    was ~1617 counts/sec (15-350 keV), at ~4 sec after the trigger.
    
  • Test version of draft template

    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

    Tilan's background subtracted TDRSS light curves

    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

    TDRSS extended lightcurve from T0-1 to T0+2

    T50 and T90 calculation

    ******************************************
             battblocks v1.18
    ------------------------------------------
         Input Data: bat_raw_lc.fits
         Output GTI: bb.gti
     Events to Skip: 128     Changepoint log(prob) Prior: 6.000000
      Internal Tick: 1.000000e-04 s
      Lookback time: 0 s
     Bkg. Subtract?: yes (for fluence/T50/T90 calculations)
    ------------------------------------------
      Estimated T90 duration: 66.56 s +/- 2.90513 s
      Estimated T50 duration: 40.448 s +/- 2.89772 s
      Estimated Peak Interval: MET   531328914.68799996 +/- 0.500000 s
      Estimated background rate 1:     6463.750 near MET 531328833.600000 s
      Estimated background rate 2:     5916.699 near MET 531328984.320000 s
      Estimated total duration: 91.52 s (for data selection)
           (from MET 531328841.600000 to MET 531328933.120000)
      Estimated total fluence: 18534.034273 count
      Created GTI with 7 entries
    ------------------------------------------
     
    

    Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)

    bat_grb_pos_cat.sh 288.103 22.438 0.083
    No match
    

    Link to SIMBAD

  • Click here for the SIMBAD search!

    Frank's UVOT result

  • Click here!

    Frank's UVOT Blinking images

  • Click here!

    Elevation angle of GRB/Sun at the ground telescope locations

    GSFC, Greenbelt, Maryland
          TimeUT       Azimuth     Elevation
     Sun: 2017 11 2 15 328.125554  29.904180
     Obj: 2017 11 2 15 247.210485  7.620682
    
  • the object visibility at GSFC, Greenbelt, Maryland
     
    MMT Observatory, Mt. Hopkins, Arizona
          TimeUT       Azimuth     Elevation
     Sun: 2017 11 2 15 298.041918  14.273365
     Obj: 2017 11 2 15 226.141344  -19.390075
    
  • the object visibility at MMT, Mt. Hopkins, Arizona
     
    Hale Telescope, Palomar Mountain, California
          TimeUT       Azimuth     Elevation
     Sun: 2017 11 2 15 294.668244  9.013052
     Obj: 2017 11 2 15 221.126776  -21.667232
    
  • the object visibility at Hale Telescope, Palomar Mt., California
     
    Mauna Kea, Hawaii
          TimeUT       Azimuth     Elevation
     Sun: 2017 11 2 15 279.060991  -20.581241
     Obj: 2017 11 2 15 183.871796  -47.630375
    
  • the object visibility at Mauna Kea, Hawaii
     
    Siding Spring Obs., Australia
          TimeUT       Azimuth     Elevation
     Sun: 2017 11 2 15 337.209030  -40.781228
     Obj: 2017 11 2 15 92.760547  -42.687586
    
  • the object visibility at Siding Spring Obs., Australia
     
    Tokyo, Japan
          TimeUT       Azimuth     Elevation
     Sun: 2017 11 2 15 183.082564  -70.525659
     Obj: 2017 11 2 15 120.064101  -3.136124
    
  • the object visibility at Tokyo, Japan
     
    William Herschel Telescope, La Palma, Canary Islands, Spain
          TimeUT       Azimuth     Elevation
     Sun: 2017 11 2 15 38.283709  37.135409
     Obj: 2017 11 2 15 270.727606  53.893017
    
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
     
    Gemini South, Cerro Pachon, Chile
          TimeUT       Azimuth     Elevation
     Sun: 2017 11 2 15 238.112928  64.321844
     Obj: 2017 11 2 15 251.551743  -13.362013
    
  • the object visibility at Gemini South, Cerro Pachon, Chile
     
     
     
    The data/results are in /local/data/bat1/prebascript/trigger785510/tdrss_ql/
     
    bat_raw_lc.fits  : TDRSS FITS light curve from GCN
    gcn_position.txt : GCN BAT position notice
    ratelc_tdrss.qdp : QDP file of the TDRSS light curve
    tdrss_lc.gif     : GIF TDRSS light curve
    sc_att.qdp       : QDP file of the spacecraft attitude
    sc_att.gif       : GIF spacecraft attitude
    bb.gti           : Bayesian block GTI file (battblocks)
    dur.gti          : Duration GTI file (battblocks)
    battblocks.log   : Output log of battblocks
     
    
    
    Plot creation:
    Thu Nov  2 11:40:04 EDT 2017