TDRSS lightcurve for Trigger=690197

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 09 Jun 16 20:35:02 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     690197,   Seg_Num: 0
GRB_RA:          266.391d {+17h 45m 34s} (J2000),
                 266.652d {+17h 46m 36s} (current),
                 265.596d {+17h 42m 23s} (1950)
GRB_DEC:         -28.980d {-28d 58' 48"} (J2000),
                 -28.986d {-28d 59' 08"} (current),
                 -28.961d {-28d 57' 38"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=4272 [image_cnts]
TRIGGER_DUR:     384.000 [sec]   (=6.4 [min])
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:        17548 TJD;   161 DOY;   16/06/09
GRB_TIME:        73679.60 SOD {20:27:59.60} UT
GRB_PHI:          55.35 [deg]
GRB_THETA:        17.10 [deg]
SOLN_STATUS:     0x1000011D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.73 [sigma]
MERIT_PARAMS:     +0  +0 +105  +7  +1  -2  +0  +1 +98  +0 
SUN_POSTN:        78.50d {+05h 13m 59s}  +23.02d {+23d 00' 54"}
SUN_DIST:        170.55 [deg]   Sun_angle= 11.5 [hr] (West of Sun)
MOON_POSTN:      142.69d {+09h 30m 45s}  +12.37d {+12d 22' 26"}
MOON_DIST:       125.53 [deg]
MOON_ILLUM:      26 [%]
GAL_COORDS:      359.96, -0.01 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      266.83, -5.58 [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 matches a source in the on-board catalog: Num=15314=(null) (probably an AT_Slot).  
COMMENTS:        This matches a source in the ground catalog: IGR J17456-2901,   delta=0.044 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 128.04,18.06 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is spatially(0.00<0.1deg) coincident with the SWIFT_BAT event (trignum=689956).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 09 Jun 16 20:44:50 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     690197,   Seg_Num: 0
GRB_RA:          266.391d {+17h 45m 34s} (J2000),
                 266.652d {+17h 46m 36s} (current),
                 265.596d {+17h 42m 23s} (1950)
GRB_DEC:         -28.980d {-28d 58' 48"} (J2000),
                 -28.986d {-28d 59' 08"} (current),
                 -28.961d {-28d 57' 38"} (1950)
GRB_DATE:        17548 TJD;   161 DOY;   16/06/09
GRB_TIME:        73679.60 SOD {20:27:59.60} UT
TRIGGER_INDEX:   20000
GRB_PHI:          55.35 [deg]
GRB_THETA:        17.10 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     384.000 [sec]   (=6.4 [min])
SOLN_STATUS:     0x11D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.73 [sigma]
LC_URL:          sw00690197000msb.lc

GCN template for BAT paragraph

  • Click here!
    At 20:27:59 UT, the Swift Burst Alert Telescope (BAT) triggered and
    located GRB 160609 ***A*** (trigger=690197).  Swift slewed immediately to the burst.
    The BAT on-board calculated location is 
    RA, Dec 266.391, -28.980 which is 
       RA(J2000) = 17h 45m 34s
       Dec(J2000) = -28d 58' 48"
    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 ~1671 counts/sec (15-350 keV), at ~2 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: 12.288 s +/- 4.096 s
      Estimated T50 duration: 4.096 s +/- 4.096 s
      Estimated Peak Interval: MET   487197002.04799998 +/- 0.500000 s
      Estimated background rate 1:     7606.071 near MET 487196877.600000 s
      Estimated background rate 2:     7290.690 near MET 487197063.488000 s
      Estimated total duration: 161.856 s (for data selection)
           (from MET 487196883.200000 to MET 487197045.056000)
      Estimated total fluence: 2580.470583 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 266.391 -28.980 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: 2016 6 9 20 79.013589  50.439440
     Obj: 2016 6 9 20 261.224460  -59.856935
    
  • the object visibility at GSFC, Greenbelt, Maryland
     
    MMT Observatory, Mt. Hopkins, Arizona
          TimeUT       Azimuth     Elevation
     Sun: 2016 6 9 20 44.048148  78.355081
     Obj: 2016 6 9 20 190.777087  -87.253844
    
  • the object visibility at MMT, Mt. Hopkins, Arizona
     
    Hale Telescope, Palomar Mountain, California
          TimeUT       Azimuth     Elevation
     Sun: 2016 6 9 20 14.031779  79.377343
     Obj: 2016 6 9 20 131.981863  -83.650437
    
  • the object visibility at Hale Telescope, Palomar Mt., California
     
    Mauna Kea, Hawaii
          TimeUT       Azimuth     Elevation
     Sun: 2016 6 9 20 257.981943  56.566727
     Obj: 2016 6 9 20 68.257911  -49.169391
    
  • the object visibility at Mauna Kea, Hawaii
     
    Siding Spring Obs., Australia
          TimeUT       Azimuth     Elevation
     Sun: 2016 6 9 20 250.628675  -12.787927
     Obj: 2016 6 9 20 68.525546  21.962964
    
  • the object visibility at Siding Spring Obs., Australia
     
    Tokyo, Japan
          TimeUT       Azimuth     Elevation
     Sun: 2016 6 9 20 241.146952  -0.749313
     Obj: 2016 6 9 20 51.852571  2.456034
    
  • the object visibility at Tokyo, Japan
     
    William Herschel Telescope, La Palma, Canary Islands, Spain
          TimeUT       Azimuth     Elevation
     Sun: 2016 6 9 20 115.675049  1.316192
     Obj: 2016 6 9 20 297.329234  -10.704052
    
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
     
    Gemini South, Cerro Pachon, Chile
          TimeUT       Azimuth     Elevation
     Sun: 2016 6 9 20 133.005988  19.057792
     Obj: 2016 6 9 20 323.020462  -19.269240
    
  • the object visibility at Gemini South, Cerro Pachon, Chile
     
     
     
    The data/results are in /local/data/bat1/prebascript/trigger690197/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 Jun  9 16:45:02 EDT 2016