TDRSS lightcurve for Trigger=1201696

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 10 Dec 23 21:29:35 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1201696,   Seg_Num: 0
GRB_RA:           95.772d {+06h 23m 05s} (J2000),
                  95.930d {+06h 23m 43s} (current),
                  95.443d {+06h 21m 46s} (1950)
GRB_DEC:         -48.359d {-48d 21' 32"} (J2000),
                 -48.373d {-48d 22' 21"} (current),
                 -48.332d {-48d 19' 54"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       12818 [cnts]    Image_Peak=271 [image_cnts]
TRIGGER_DUR:     2.048 [sec] 
TRIGGER_INDEX:   263     E_range: 25-100 keV
BKG_INTEN:       160067 [cnts]
BKG_TIME:        77311.47 SOD {21:28:31.47} UT
BKG_DUR:         24 [sec]
GRB_DATE:        20288 TJD;   344 DOY;   23/12/10
GRB_TIME:        77344.49 SOD {21:29:04.49} UT
GRB_PHI:         130.89 [deg]
GRB_THETA:        40.32 [deg]
SOLN_STATUS:     0x203
RATE_SIGNIF:     14.52 [sigma]
IMAGE_SIGNIF:    7.31 [sigma]
MERIT_PARAMS:     +1  +0  +0  +1  +2  -3  +0  +0 +28  +0 
SUN_POSTN:       257.56d {+17h 10m 15s}  -22.94d {-22d 56' 33"}
SUN_DIST:        106.81 [deg]   Sun_angle= 10.8 [hr] (West of Sun)
MOON_POSTN:      229.33d {+15h 17m 20s}  -20.69d {-20d 41' 20"}
MOON_DIST:        99.38 [deg]
MOON_ILLUM:      5 [%]
GAL_COORDS:      256.52,-24.44 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      102.19,-71.55 [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:        Since the foreground interval count rate is less than the bkg interval (SAA exit), this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 347.09,-18.40 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 10 Dec 23 21:49:24 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1201696,   Seg_Num: 0
GRB_RA:           95.772d {+06h 23m 05s} (J2000),
                  95.930d {+06h 23m 43s} (current),
                  95.443d {+06h 21m 46s} (1950)
GRB_DEC:         -48.359d {-48d 21' 32"} (J2000),
                 -48.373d {-48d 22' 21"} (current),
                 -48.332d {-48d 19' 54"} (1950)
GRB_DATE:        20288 TJD;   344 DOY;   23/12/10
GRB_TIME:        77344.49 SOD {21:29:04.49} UT
TRIGGER_INDEX:   263
GRB_PHI:         130.89 [deg]
GRB_THETA:        40.32 [deg]
DELTA_TIME:      57.00 [sec]
TRIGGER_DUR:     2.048 [sec] 
SOLN_STATUS:     0x203
RATE_SIGNIF:     14.52 [sigma]
IMAGE_SIGNIF:    7.31 [sigma]
LC_URL:          sw01201696000msb.lc

GCN template for BAT paragraph

  • Click here!
    At 21:29:04 UT, the Swift Burst Alert Telescope (BAT) triggered and
    located GRB 231210 ***A*** (trigger=1201696).  Swift slewed immediately to the burst.
    The BAT on-board calculated location is 
    RA, Dec 95.772, -48.359 which is 
       RA(J2000) = 06h 23m 05s
       Dec(J2000) = -48d 21' 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 ~7948 counts/sec (15-350 keV), at ~-22 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: 170.752 s +/- 32.3002 s
      Estimated T50 duration: 170.752 s +/- 83.8192 s
      Estimated Peak Interval: MET   723936577.47199988 +/- 0.500000 s
      Estimated background rate 1:    13632.188 near MET 723936556.800000 s
      Estimated background rate 2:     6185.791 near MET 723936747.136000 s
      Estimated total duration: 170.752 s (for data selection)
           (from MET 723936560.000000 to MET 723936730.752000)
      Estimated total fluence: -332046.049944 count
      Created GTI with 26 entries
    ------------------------------------------
     
    

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

    bat_grb_pos_cat.sh 95.772 -48.359 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 95.772 -48.359
    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 12 10 21 52.973198  6.780947
     Obj: 2023 12 10 21 301.334350  -59.322803
    
  • the object visibility at GSFC, Greenbelt, Maryland
     
    MMT Observatory, Mt. Hopkins, Arizona
          TimeUT       Azimuth     Elevation
     Sun: 2023 12 10 21 27.206380  30.161947
     Obj: 2023 12 10 21 344.337651  -72.497914
    
  • the object visibility at MMT, Mt. Hopkins, Arizona
     
    Hale Telescope, Palomar Mountain, California
          TimeUT       Azimuth     Elevation
     Sun: 2023 12 10 21 20.876193  30.697326
     Obj: 2023 12 10 21 357.333595  -74.969726
    
  • the object visibility at Hale Telescope, Palomar Mt., California
     
    Mauna Kea, Hawaii
          TimeUT       Azimuth     Elevation
     Sun: 2023 12 10 21 335.448878  43.276011
     Obj: 2023 12 10 21 37.672010  -48.527118
    
  • the object visibility at Mauna Kea, Hawaii
     
    Siding Spring Obs., Australia
          TimeUT       Azimuth     Elevation
     Sun: 2023 12 10 21 283.095388  24.233989
     Obj: 2023 12 10 21 46.908391  24.683947
    
  • the object visibility at Siding Spring Obs., Australia
     
    Tokyo, Japan
          TimeUT       Azimuth     Elevation
     Sun: 2023 12 10 21 288.630118  -13.741955
     Obj: 2023 12 10 21 40.102375  -13.809837
    
  • the object visibility at Tokyo, Japan
     
    William Herschel Telescope, La Palma, Canary Islands, Spain
          TimeUT       Azimuth     Elevation
     Sun: 2023 12 10 21 80.805065  -34.899739
     Obj: 2023 12 10 21 317.382623  -14.997732
    
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
     
    Gemini South, Cerro Pachon, Chile
          TimeUT       Azimuth     Elevation
     Sun: 2023 12 10 21 80.347005  31.899417
     Obj: 2023 12 10 21 330.969322  -0.840240
    
  • the object visibility at Gemini South, Cerro Pachon, Chile
     
     
     
    The data/results are in /local/data/bat1/prebascript/trigger1201696/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:
    Sun Dec 10 16:51:22 EST 2023