TDRSS lightcurve for Trigger=1032183

Notes:

GCN BAT Position Notice



GCN BAT Lightcurve Notice


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 12 Feb 21 04:44:14 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1032183,   Seg_Num: 0
GRB_RA:           72.261d {+04h 49m 03s} (J2000),
                  72.546d {+04h 50m 11s} (current),
                  71.587d {+04h 46m 21s} (1950)
GRB_DEC:          +7.234d {+07d 14' 01"} (J2000),
                  +7.269d {+07d 16' 09"} (current),
                  +7.147d {+07d 08' 50"} (1950)
GRB_DATE:        19257 TJD;    43 DOY;   21/02/12
GRB_TIME:        15918.01 SOD {04:25:18.01} UT
TRIGGER_INDEX:   479
GRB_PHI:         -64.82 [deg]
GRB_THETA:         5.24 [deg]
DELTA_TIME:      1539.00 [sec]
TRIGGER_DUR:     16.384 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     10.77 [sigma]
IMAGE_SIGNIF:    7.13 [sigma]
LC_URL:          sw01032183000msb.lc




 GCN template for BAT paragraph 


  •  Click here! 

    At 04:25:18 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 210212 ***A*** (trigger=1032183).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 72.261, +7.234 which is 
   RA(J2000) = 04h 49m 03s
   Dec(J2000) = +07d 14' 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 ~1218 counts/sec (15-350 keV), at ~6 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 
    






    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 background rate 1:     4916.071 near MET 634796725.600000 s
  Estimated background rate 2:     5184.423 near MET 634796741.600000 s
  Estimated total fluence: 0.000000 count
  Created GTI with 2 entries
------------------------------------------
 

    

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

    bat_grb_pos_cat.sh 72.261 7.234 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 72.261 7.234
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: 2021 2 12 4 138.178828  -58.638302
 Obj: 2021 2 12 4 70.310046  33.256007

    

  •  the object visibility at GSFC, Greenbelt, Maryland

     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2021 2 12 4 96.645283  -36.822491
 Obj: 2021 2 12 4 39.175423  60.082857

    

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

     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2021 2 12 4 94.228539  -31.644213
 Obj: 2021 2 12 4 26.753950  61.436880

    

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

     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2021 2 12 4 73.919834  4.044221
 Obj: 2021 2 12 4 292.801722  61.754419

    

  •  the object visibility at Mauna Kea, Hawaii 

     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2021 2 12 4 121.907674  61.028734
 Obj: 2021 2 12 4 259.384054  3.344278

    

  •  the object visibility at Siding Spring Obs., Australia 

     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2021 2 12 4 10.892153  41.274768
 Obj: 2021 2 12 4 259.389683  -2.596025

    

  •  the object visibility at Tokyo, Japan 

     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2021 2 12 4 254.927386  -51.667053
 Obj: 2021 2 12 4 107.211123  -14.985050

    

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

     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2021 2 12 4 20.408957  -43.733741
 Obj: 2021 2 12 4 113.743728  22.584860

    

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

     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1032183/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 Feb 11 23:44:46 EST 2021