TDRSS lightcurve for Trigger=597519

Notes:

GCN BAT Position Notice



GCN BAT Lightcurve Notice


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 28 Apr 14 22:57:57 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     597519,   Seg_Num: 0
GRB_RA:          266.125d {+17h 44m 30s} (J2000),
                 266.352d {+17h 45m 24s} (current),
                 265.332d {+17h 41m 20s} (1950)
GRB_DEC:         -28.719d {-28d 43' 08"} (J2000),
                 -28.724d {-28d 43' 27"} (current),
                 -28.698d {-28d 41' 53"} (1950)
GRB_DATE:        16775 TJD;   118 DOY;   14/04/28
GRB_TIME:        81650.00 SOD {22:40:50.00} UT
TRIGGER_INDEX:   20000
GRB_PHI:         107.58 [deg]
GRB_THETA:         0.05 [deg]
DELTA_TIME:      45.00 [sec]
TRIGGER_DUR:     


 GCN template for BAT paragraph 


  •  Click here! 

    At 22:40:50 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 140428 ***A*** (trigger=597519).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 266.125, -28.719 which is 
   RA(J2000) = 17h 44m 30s
   Dec(J2000) = -28d 43' 08"
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 ~0 counts/sec (15-350 keV), at ~ 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 
    






    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)
------------------------------------------
 

    

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

    bat_grb_pos_cat.sh 266.125 -28.719 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: 2014 4 28 22 91.050636  21.859814
 Obj: 2014 4 28 22 248.644770  -68.367032

    

  •  the object visibility at GSFC, Greenbelt, Maryland

     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2014 4 28 22 73.373525  50.198610
 Obj: 2014 4 28 22 104.591979  -80.107292

    

  •  the object visibility at MMT, Mt. Hopkins, Arizona 

     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2014 4 28 22 65.857757  54.353668
 Obj: 2014 4 28 22 103.194043  -74.812930

    

  •  the object visibility at Hale Telescope, Palomar Mt., California

     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2014 4 28 22 316.309128  82.516489
 Obj: 2014 4 28 22 68.577436  -39.084555

    

  •  the object visibility at Mauna Kea, Hawaii 

     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2014 4 28 22 241.592429  15.942900
 Obj: 2014 4 28 22 73.173992  31.165388

    

  •  the object visibility at Siding Spring Obs., Australia 

     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2014 4 28 22 264.850127  18.285222
 Obj: 2014 4 28 22 44.831553  9.749271

    

  •  the object visibility at Tokyo, Japan 

     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2014 4 28 22 126.508066  -26.898738
 Obj: 2014 4 28 22 292.687472  -19.748613

    

  •  the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain

     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2014 4 28 22 107.827546  1.801000
 Obj: 2014 4 28 22 332.107460  -24.834091

    

  •  the object visibility at Gemini South, Cerro Pachon, Chile 

     
 
 
The data/results are in /local/data/raid2/prebascript/trigger597519/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:
Mon Apr 28 18:58:25 EDT 2014