TDRSS lightcurve for Trigger=1213095

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 05 Feb 24 22:13:21 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1213095,   Seg_Num: 0
GRB_RA:          351.476d {+23h 25m 54s} (J2000),
                 351.813d {+23h 27m 15s} (current),
                 350.774d {+23h 23m 06s} (1950)
GRB_DEC:         -55.132d {-55d 07' 55"} (J2000),
                 -54.999d {-54d 59' 57"} (current),
                 -55.407d {-55d 24' 25"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       1652 [cnts]    Image_Peak=158 [image_cnts]
TRIGGER_DUR:     0.512 [sec] 
TRIGGER_INDEX:   121     E_range: 15-50 keV
BKG_INTEN:       16037 [cnts]
BKG_TIME:        79975.13 SOD {22:12:55.13} UT
BKG_DUR:         8 [sec]
GRB_DATE:        20345 TJD;    36 DOY;   24/02/05
GRB_TIME:        79986.78 SOD {22:13:06.78} UT
GRB_PHI:         -97.12 [deg]
GRB_THETA:         9.68 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     18.97 [sigma]
IMAGE_SIGNIF:    10.45 [sigma]
MERIT_PARAMS:     +1  +0  +0  -1  +1  +0  +0  +0 -68  +0 
SUN_POSTN:       319.06d {+21h 16m 14s}  -15.86d {-15d 51' 28"}
SUN_DIST:         46.54 [deg]   Sun_angle= -2.2 [hr] (East of Sun)
MOON_POSTN:      260.99d {+17h 23m 57s}  -27.79d {-27d 47' 38"}
MOON_DIST:        68.00 [deg]
MOON_ILLUM:      21 [%]
GAL_COORDS:      326.08,-57.98 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      324.44,-45.98 [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 = 203.47,-20.61 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(2.0<100sec) coincident with the FERMI_GBM event (trignum=728863993).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 05 Feb 24 22:29:55 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1213095,   Seg_Num: 0
GRB_RA:          351.476d {+23h 25m 54s} (J2000),
                 351.813d {+23h 27m 15s} (current),
                 350.774d {+23h 23m 06s} (1950)
GRB_DEC:         -55.132d {-55d 07' 55"} (J2000),
                 -54.999d {-54d 59' 57"} (current),
                 -55.407d {-55d 24' 25"} (1950)
GRB_DATE:        20345 TJD;    36 DOY;   24/02/05
GRB_TIME:        79986.78 SOD {22:13:06.78} UT
TRIGGER_INDEX:   121
GRB_PHI:         -97.12 [deg]
GRB_THETA:         9.68 [deg]
DELTA_TIME:      -43.00 [sec]
TRIGGER_DUR:     0.512 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     18.97 [sigma]
IMAGE_SIGNIF:    10.45 [sigma]
LC_URL:          sw01213095000msb.lc

GCN template for BAT paragraph

  • Click here!
    At 22:13:06 UT, the Swift Burst Alert Telescope (BAT) triggered and
    located GRB 240205 ***A*** (trigger=1213095).  Swift slewed immediately to the burst.
    The BAT on-board calculated location is 
    RA, Dec 351.476, -55.132 which is 
       RA(J2000) = 23h 25m 54s
       Dec(J2000) = -55d 07' 55"
    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 ~9695 counts/sec (15-350 keV), at ~7 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

    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: 6.4 s +/- 0.128 s
      Estimated T50 duration: 3.712 s +/- 0.128 s
      Estimated Peak Interval: MET   728864026.75199997 +/- 0.500000 s
      Estimated background rate 1:     3629.173 near MET 728864006.464000 s
      Estimated background rate 2:     3579.553 near MET 728864164.160000 s
      Estimated total duration: 105.472 s (for data selection)
           (from MET 728864017.728000 to MET 728864123.200000)
      Estimated total fluence: 49306.162843 count
      Created GTI with 12 entries
    ------------------------------------------
     
    

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

    bat_grb_pos_cat.sh 351.476 -55.132 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 351.476 -55.132
    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: 2024 2 5 22 64.526466  5.375755
     Obj: 2024 2 5 22 20.141529  -9.045881
    
  • the object visibility at GSFC, Greenbelt, Maryland
     
    MMT Observatory, Mt. Hopkins, Arizona
          TimeUT       Azimuth     Elevation
     Sun: 2024 2 5 22 40.591656  31.696395
     Obj: 2024 2 5 22 1.358259  3.254091
    
  • the object visibility at MMT, Mt. Hopkins, Arizona
     
    Hale Telescope, Palomar Mountain, California
          TimeUT       Azimuth     Elevation
     Sun: 2024 2 5 22 34.159946  33.438021
     Obj: 2024 2 5 22 357.924402  1.556389
    
  • the object visibility at Hale Telescope, Palomar Mt., California
     
    Mauna Kea, Hawaii
          TimeUT       Azimuth     Elevation
     Sun: 2024 2 5 22 344.731008  53.086188
     Obj: 2024 2 5 22 337.150424  6.950186
    
  • the object visibility at Mauna Kea, Hawaii
     
    Siding Spring Obs., Australia
          TimeUT       Azimuth     Elevation
     Sun: 2024 2 5 22 271.441959  29.330691
     Obj: 2024 2 5 22 322.465042  21.056306
    
  • the object visibility at Siding Spring Obs., Australia
     
    Tokyo, Japan
          TimeUT       Azimuth     Elevation
     Sun: 2024 2 5 22 287.800816  -2.199417
     Obj: 2024 2 5 22 316.060861  -41.144182
    
  • the object visibility at Tokyo, Japan
     
    William Herschel Telescope, La Palma, Canary Islands, Spain
          TimeUT       Azimuth     Elevation
     Sun: 2024 2 5 22 93.477618  -40.730065
     Obj: 2024 2 5 22 39.516978  -26.203599
    
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
     
    Gemini South, Cerro Pachon, Chile
          TimeUT       Azimuth     Elevation
     Sun: 2024 2 5 22 83.224622  20.613193
     Obj: 2024 2 5 22 38.066019  51.245807
    
  • the object visibility at Gemini South, Cerro Pachon, Chile
     
     
     
    The data/results are in /local/data/bat1/prebascript/trigger1213095/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 Feb  5 17:30:26 EST 2024