TDRSS lightcurve for Trigger=1167288

Notes:

GCN BAT Position Notice



GCN BAT Lightcurve Notice


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 06 May 23 17:26:00 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1167288,   Seg_Num: 0
GRB_RA:          134.373d {+08h 57m 30s} (J2000),
                 134.765d {+08h 59m 04s} (current),
                 133.531d {+08h 54m 07s} (1950)
GRB_DEC:         +45.126d {+45d 07' 32"} (J2000),
                 +45.034d {+45d 02' 04"} (current),
                 +45.319d {+45d 19' 08"} (1950)
GRB_DATE:        20070 TJD;   126 DOY;   23/05/06
GRB_TIME:        61759.35 SOD {17:09:19.35} UT
TRIGGER_INDEX:   141
GRB_PHI:         -163.33 [deg]
GRB_THETA:        42.92 [deg]
DELTA_TIME:      -18.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     11.22 [sigma]
IMAGE_SIGNIF:    7.73 [sigma]
LC_URL:          sw01167288000msb.lc




 GCN template for BAT paragraph 


  •  Click here! 

    At 17:09:19 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 230506 ***A*** (trigger=1167288).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 134.373, +45.126 which is 
   RA(J2000) = 08h 57m 30s
   Dec(J2000) = +45d 07' 32"
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 ~1226 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
    




    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: 24.32 s +/- 1.94648 s
  Estimated T50 duration: 6.656 s +/- 0.46151 s
  Estimated Peak Interval: MET   705085791.42400002 +/- 0.500000 s
  Estimated background rate 1:     2161.144 near MET 705085774.880000 s
  Estimated background rate 2:     2129.889 near MET 705085894.912000 s
  Estimated total duration: 30.144 s (for data selection)
       (from MET 705085783.360000 to MET 705085813.504000)
  Estimated total fluence: 6256.766142 count
  Created GTI with 6 entries
------------------------------------------
 

    

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

    bat_grb_pos_cat.sh 134.373 45.126 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 134.373 45.126
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: 2023 5 6 17 356.133560  67.552650
 Obj: 2023 5 6 17 230.982014  24.677151

    

  •  the object visibility at GSFC, Greenbelt, Maryland

     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2023 5 6 17 286.627469  54.436351
 Obj: 2023 5 6 17 214.440657  0.596287

    

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

     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2023 5 6 17 283.769927  49.128843
 Obj: 2023 5 6 17 211.218426  -0.740485

    

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

     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2023 5 6 17 257.278957  14.538908
 Obj: 2023 5 6 17 186.654549  -24.694056

    

  •  the object visibility at Mauna Kea, Hawaii 

     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2023 5 6 17 279.414707  -47.200050
 Obj: 2023 5 6 17 124.444924  -51.292820

    

  •  the object visibility at Siding Spring Obs., Australia 

     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2023 5 6 17 212.009946  -32.572766
 Obj: 2023 5 6 17 140.300162  7.995479

    

  •  the object visibility at Tokyo, Japan 

     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2023 5 6 17 90.189907  36.083681
 Obj: 2023 5 6 17 229.347977  58.730099

    

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

     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2023 5 6 17 174.294095  42.839281
 Obj: 2023 5 6 17 228.257458  -18.991887

    

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

     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1167288/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 May  6 13:26:22 EDT 2023