TDRSS lightcurve for Trigger=456967

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 09 Jul 11 21:33:03 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     456967,   Seg_Num: 0
GRB_RA:          164.614d {+10h 58m 27s} (J2000),
                 164.755d {+10h 59m 01s} (current),
                 164.006d {+10h 56m 02s} (1950)
GRB_DEC:         -23.484d {-23d 29' 01"} (J2000),
                 -23.546d {-23d 32' 44"} (current),
                 -23.216d {-23d 12' 56"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       4045 [cnts]    Image_Peak=175 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       25593 [cnts]
BKG_TIME:        77544.85 SOD {21:32:24.85} UT
BKG_DUR:         8 [sec]
GRB_DATE:        15751 TJD;   190 DOY;   11/07/09
GRB_TIME:        77559.83 SOD {21:32:39.83} UT
GRB_PHI:         147.27 [deg]
GRB_THETA:        28.65 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     12.48 [sigma]
IMAGE_SIGNIF:    7.39 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  -3  +0  +0 -32  +0 
SUN_POSTN:       108.78d {+07h 15m 07s}  +22.31d {+22d 18' 53"}
SUN_DIST:         71.16 [deg]   Sun_angle= -3.7 [hr] (East of Sun)
MOON_POSTN:      215.23d {+14h 20m 54s}  -17.92d {-17d 55' 13"}
MOON_DIST:        47.31 [deg]
MOON_ILLUM:      68 [%]
GAL_COORDS:      271.96, 32.51 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      175.81,-27.54 [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 = 227.50,16.23 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 09 Jul 11 21:45:03 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     456967,   Seg_Num: 0
GRB_RA:          164.614d {+10h 58m 27s} (J2000),
                 164.755d {+10h 59m 01s} (current),
                 164.006d {+10h 56m 02s} (1950)
GRB_DEC:         -23.484d {-23d 29' 01"} (J2000),
                 -23.546d {-23d 32' 44"} (current),
                 -23.216d {-23d 12' 56"} (1950)
GRB_DATE:        15751 TJD;   190 DOY;   11/07/09
GRB_TIME:        77559.83 SOD {21:32:39.83} UT
TRIGGER_INDEX:   146
GRB_PHI:         147.27 [deg]
GRB_THETA:        28.65 [deg]
DELTA_TIME:      -56.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     12.48 [sigma]
IMAGE_SIGNIF:    7.39 [sigma]
LC_URL:          sw00456967000msb.lc

GCN template for BAT paragraph

  • Click here!
    At 21:32:39 UT, the Swift Burst Alert Telescope (BAT) triggered and
    located GRB 110709 ***A*** (trigger=456967).  Swift slewed immediately to the burst.
    The BAT on-board calculated location is 
    RA, Dec 164.614, -23.484 which is 
       RA(J2000) = 10h 58m 27s
       Dec(J2000) = -23d 29' 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 ~4299 counts/sec (15-350 keV), at ~30 sec after the trigger.
    

    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

    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: 34.432 s +/- 0.729712 s
      Estimated T50 duration: 18.432 s +/- 0.746362 s
      Estimated Peak Interval: MET   331940006.91199994 +/- 0.500000 s
      Estimated background rate 1:     6003.542 near MET 331939944.800000 s
      Estimated background rate 2:     5643.253 near MET 331940082.688000 s
      Estimated total duration: 65.856 s (for data selection)
           (from MET 331939947.200000 to MET 331940013.056000)
      Estimated total fluence: 93084.768055 count
      Created GTI with 34 entries
    ------------------------------------------
     
    

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

    bat_grb_pos_cat.sh 164.614 -23.484 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: 2011 7 9 21 87.932417  39.603840
     Obj: 2011 7 9 21 0.328474  27.417756
    
  • the object visibility at GSFC, Greenbelt, Maryland
     
    MMT Observatory, Mt. Hopkins, Arizona
          TimeUT       Azimuth     Elevation
     Sun: 2011 7 9 21 70.214352  68.076902
     Obj: 2011 7 9 21 325.532272  26.026244
    
  • the object visibility at MMT, Mt. Hopkins, Arizona
     
    Hale Telescope, Palomar Mountain, California
          TimeUT       Azimuth     Elevation
     Sun: 2011 7 9 21 56.696977  71.864680
     Obj: 2011 7 9 21 320.963685  21.671187
    
  • the object visibility at Hale Telescope, Palomar Mt., California
     
    Mauna Kea, Hawaii
          TimeUT       Azimuth     Elevation
     Sun: 2011 7 9 21 259.206238  69.071777
     Obj: 2011 7 9 21 296.065292  2.246237
    
  • the object visibility at Mauna Kea, Hawaii
     
    Siding Spring Obs., Australia
          TimeUT       Azimuth     Elevation
     Sun: 2011 7 9 21 244.736604  -1.723555
     Obj: 2011 7 9 21 315.347217  -19.553325
    
  • the object visibility at Siding Spring Obs., Australia
     
    Tokyo, Japan
          TimeUT       Azimuth     Elevation
     Sun: 2011 7 9 21 249.049908  8.973191
     Obj: 2011 7 9 21 255.116327  -62.029935
    
  • the object visibility at Tokyo, Japan
     
    William Herschel Telescope, La Palma, Canary Islands, Spain
          TimeUT       Azimuth     Elevation
     Sun: 2011 7 9 21 122.032702  -9.472122
     Obj: 2011 7 9 21 53.884261  12.552850
    
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
     
    Gemini South, Cerro Pachon, Chile
          TimeUT       Azimuth     Elevation
     Sun: 2011 7 9 21 123.697036  10.358579
     Obj: 2011 7 9 21 139.318369  81.232852
    
  • the object visibility at Gemini South, Cerro Pachon, Chile
     
     
     
    The data/results are in /local/data/raid2/prebascript/trigger456967/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:
    Sat Jul  9 17:45:25 EDT 2011