TDRSS lightcurve for Trigger=761622

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 11 Jul 17 22:20:46 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     761622,   Seg_Num: 0
GRB_RA:           45.786d {+03h 03m 09s} (J2000),
                  46.088d {+03h 04m 21s} (current),
                  44.928d {+02h 59m 43s} (1950)
GRB_DEC:         +47.850d {+47d 51' 01"} (J2000),
                 +47.918d {+47d 55' 05"} (current),
                 +47.655d {+47d 39' 17"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       7255 [cnts]    Image_Peak=1030 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   137     E_range: 15-50 keV
BKG_INTEN:       23561 [cnts]
BKG_TIME:        80412.64 SOD {22:20:12.64} UT
BKG_DUR:         8 [sec]
GRB_DATE:        17945 TJD;   192 DOY;   17/07/11
GRB_TIME:        80425.38 SOD {22:20:25.38} UT
GRB_PHI:         -11.36 [deg]
GRB_THETA:        11.77 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     72.53 [sigma]
IMAGE_SIGNIF:    21.47 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +1  +7  +0  +1 -53  +0 
SUN_POSTN:       111.42d {+07h 25m 40s}  +21.98d {+21d 58' 38"}
SUN_DIST:         57.51 [deg]   Sun_angle= 4.4 [hr] (West of Sun)
MOON_POSTN:      323.22d {+21h 32m 53s}  -14.18d {-14d 10' 33"}
MOON_DIST:        95.80 [deg]
MOON_ILLUM:      93 [%]
GAL_COORDS:      144.63, -9.40 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       57.56, 29.27 [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 = 125.87,19.26 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(0.0<100sec) coincident with the FERMI_GBM event (trignum=521504430).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 11 Jul 17 22:39:40 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     761622,   Seg_Num: 0
GRB_RA:           45.786d {+03h 03m 09s} (J2000),
                  46.088d {+03h 04m 21s} (current),
                  44.928d {+02h 59m 43s} (1950)
GRB_DEC:         +47.850d {+47d 51' 01"} (J2000),
                 +47.918d {+47d 55' 05"} (current),
                 +47.655d {+47d 39' 17"} (1950)
GRB_DATE:        17945 TJD;   192 DOY;   17/07/11
GRB_TIME:        80425.38 SOD {22:20:25.38} UT
TRIGGER_INDEX:   137
GRB_PHI:         -11.36 [deg]
GRB_THETA:        11.77 [deg]
DELTA_TIME:      6.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     72.53 [sigma]
IMAGE_SIGNIF:    21.47 [sigma]
LC_URL:          sw00761622000msb.lc

GCN template for BAT paragraph

  • Click here!
    At 22:20:25 UT, the Swift Burst Alert Telescope (BAT) triggered and
    located GRB 170711 ***A*** (trigger=761622).  Swift slewed immediately to the burst.
    The BAT on-board calculated location is 
    RA, Dec 45.786, +47.850 which is 
       RA(J2000) = 03h 03m 09s
       Dec(J2000) = +47d 51' 01"
    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 ~7135 counts/sec (15-350 keV), at ~0 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: 7.68 s +/- 0.286217 s
      Estimated T50 duration: 2.944 s +/- 0.128 s
      Estimated Peak Interval: MET   521504445.31199998 +/- 0.500000 s
      Estimated background rate 1:     5438.619 near MET 521504431.520000 s
      Estimated background rate 2:     2497.024 near MET 521504541.504000 s
      Estimated total duration: 10.048 s (for data selection)
           (from MET 521504442.240000 to MET 521504452.288000)
      Estimated total fluence: 25035.975703 count
      Created GTI with 11 entries
    ------------------------------------------
     
    

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

    bat_grb_pos_cat.sh 45.786 47.850 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 7 11 22 96.692370  27.851522
     Obj: 2017 7 11 22 152.427408  5.075321
    
  • the object visibility at GSFC, Greenbelt, Maryland
     
    MMT Observatory, Mt. Hopkins, Arizona
          TimeUT       Azimuth     Elevation
     Sun: 2017 7 11 22 82.954839  55.571645
     Obj: 2017 7 11 22 137.259206  15.395217
    
  • the object visibility at MMT, Mt. Hopkins, Arizona
     
    Hale Telescope, Palomar Mountain, California
          TimeUT       Azimuth     Elevation
     Sun: 2017 7 11 22 75.626682  60.225415
     Obj: 2017 7 11 22 134.834835  20.097043
    
  • the object visibility at Hale Telescope, Palomar Mt., California
     
    Mauna Kea, Hawaii
          TimeUT       Azimuth     Elevation
     Sun: 2017 7 11 22 251.352628  82.784504
     Obj: 2017 7 11 22 135.471174  35.869823
    
  • the object visibility at Mauna Kea, Hawaii
     
    Siding Spring Obs., Australia
          TimeUT       Azimuth     Elevation
     Sun: 2017 7 11 22 236.803283  9.597945
     Obj: 2017 7 11 22 178.304714  10.728560
    
  • the object visibility at Siding Spring Obs., Australia
     
    Tokyo, Japan
          TimeUT       Azimuth     Elevation
     Sun: 2017 7 11 22 256.848662  20.550017
     Obj: 2017 7 11 22 213.720491  72.847107
    
  • the object visibility at Tokyo, Japan
     
    William Herschel Telescope, La Palma, Canary Islands, Spain
          TimeUT       Azimuth     Elevation
     Sun: 2017 7 11 22 131.031283  -20.202673
     Obj: 2017 7 11 22 190.577092  -12.104196
    
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
     
    Gemini South, Cerro Pachon, Chile
          TimeUT       Azimuth     Elevation
     Sun: 2017 7 11 22 115.314999  -0.645009
     Obj: 2017 7 11 22 132.335226  -56.465606
    
  • the object visibility at Gemini South, Cerro Pachon, Chile
     
     
     
    The data/results are in /local/data/bat1/prebascript/trigger761622/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:
    Tue Jul 11 18:40:05 EDT 2017