TDRSS lightcurve for Trigger=912239

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 30 Jun 19 23:53:24 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     912239,   Seg_Num: 0
GRB_RA:          293.908d {+19h 35m 38s} (J2000),
                 294.222d {+19h 36m 53s} (current),
                 293.103d {+19h 32m 25s} (1950)
GRB_DEC:         -32.751d {-32d 45' 03"} (J2000),
                 -32.707d {-32d 42' 24"} (current),
                 -32.862d {-32d 51' 43"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       3049 [cnts]    Image_Peak=182 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       17465 [cnts]
BKG_TIME:        85960.83 SOD {23:52:40.83} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18664 TJD;   181 DOY;   19/06/30
GRB_TIME:        85979.52 SOD {23:52:59.52} UT
GRB_PHI:         136.09 [deg]
GRB_THETA:        23.19 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     16.09 [sigma]
IMAGE_SIGNIF:    9.75 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  +0  +0  +0 +96  +0 
SUN_POSTN:        99.69d {+06h 38m 46s}  +23.14d {+23d 08' 14"}
SUN_DIST:        164.01 [deg]   Sun_angle= 11.0 [hr] (West of Sun)
MOON_POSTN:       74.16d {+04h 56m 37s}  +19.77d {+19d 46' 23"}
MOON_DIST:       142.07 [deg]
MOON_ILLUM:      4 [%]
GAL_COORDS:        6.63,-22.96 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      290.32,-10.98 [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 = 66.52,4.33 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 01 Jul 19 00:10:27 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     912239,   Seg_Num: 0
GRB_RA:          293.908d {+19h 35m 38s} (J2000),
                 294.222d {+19h 36m 53s} (current),
                 293.103d {+19h 32m 25s} (1950)
GRB_DEC:         -32.751d {-32d 45' 03"} (J2000),
                 -32.707d {-32d 42' 24"} (current),
                 -32.862d {-32d 51' 43"} (1950)
GRB_DATE:        18664 TJD;   181 DOY;   19/06/30
GRB_TIME:        85979.52 SOD {23:52:59.52} UT
TRIGGER_INDEX:   146
GRB_PHI:         136.09 [deg]
GRB_THETA:        23.19 [deg]
DELTA_TIME:      52.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     16.09 [sigma]
IMAGE_SIGNIF:    9.75 [sigma]
LC_URL:          sw00912239000msb.lc

GCN template for BAT paragraph

  • Click here!
    At 23:52:59 UT, the Swift Burst Alert Telescope (BAT) triggered and
    located GRB 190630 ***A*** (trigger=912239).  Swift slewed immediately to the burst.
    The BAT on-board calculated location is 
    RA, Dec 293.908, -32.751 which is 
       RA(J2000) = 19h 35m 38s
       Dec(J2000) = -32d 45' 03"
    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 ~2116 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: 81.024 s +/- 4.10212 s
      Estimated T50 duration: 26.112 s +/- 0.729712 s
      Estimated Peak Interval: MET   583631602.81599998 +/- 0.500000 s
      Estimated background rate 1:     4674.256 near MET 583631589.280000 s
      Estimated background rate 2:     4219.147 near MET 583631756.352000 s
      Estimated total duration: 124.224 s (for data selection)
           (from MET 583631599.360000 to MET 583631723.584000)
      Estimated total fluence: 26818.888612 count
      Created GTI with 10 entries
    ------------------------------------------
     
    

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

    bat_grb_pos_cat.sh 293.908 -32.751 0.083
    No match
    

    Search for this GRB position to the source locations in BAT transient monitor (search radius within 12 arcmin)

    python compare_catalog.py 293.908 -32.751
    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: 2019 7 1 0 115.143989  5.857484
     Obj: 2019 7 1 0 295.101512  -21.898559
    
  • the object visibility at GSFC, Greenbelt, Maryland
     
    MMT Observatory, Mt. Hopkins, Arizona
          TimeUT       Azimuth     Elevation
     Sun: 2019 7 1 0 100.070849  30.205642
     Obj: 2019 7 1 0 286.133871  -45.512344
    
  • the object visibility at MMT, Mt. Hopkins, Arizona
     
    Hale Telescope, Palomar Mountain, California
          TimeUT       Azimuth     Elevation
     Sun: 2019 7 1 0 96.249475  35.437652
     Obj: 2019 7 1 0 282.506657  -50.809716
    
  • the object visibility at Hale Telescope, Palomar Mt., California
     
    Mauna Kea, Hawaii
          TimeUT       Azimuth     Elevation
     Sun: 2019 7 1 0 102.920280  68.263004
     Obj: 2019 7 1 0 330.941137  -75.028516
    
  • the object visibility at Mauna Kea, Hawaii
     
    Siding Spring Obs., Australia
          TimeUT       Azimuth     Elevation
     Sun: 2019 7 1 0 213.658908  27.328058
     Obj: 2019 7 1 0 38.930265  -12.208523
    
  • the object visibility at Siding Spring Obs., Australia
     
    Tokyo, Japan
          TimeUT       Azimuth     Elevation
     Sun: 2019 7 1 0 271.374170  46.028180
     Obj: 2019 7 1 0 72.758644  -37.984703
    
  • the object visibility at Tokyo, Japan
     
    William Herschel Telescope, La Palma, Canary Islands, Spain
          TimeUT       Azimuth     Elevation
     Sun: 2019 7 1 0 158.240387  -34.897031
     Obj: 2019 7 1 0 329.951690  20.627122
    
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
     
    Gemini South, Cerro Pachon, Chile
          TimeUT       Azimuth     Elevation
     Sun: 2019 7 1 0 102.787912  -26.026472
     Obj: 2019 7 1 0 297.833210  18.129270
    
  • the object visibility at Gemini South, Cerro Pachon, Chile
     
     
     
    The data/results are in /local/data/bat1/prebascript/trigger912239/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:
    Sun Jun 30 20:10:43 EDT 2019