TDRSS lightcurve for Trigger=1246907

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 05 Aug 24 02:02:39 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1246907,   Seg_Num: 0
GRB_RA:          190.911d {+12h 43m 39s} (J2000),
                 191.262d {+12h 45m 03s} (current),
                 190.201d {+12h 40m 48s} (1950)
GRB_DEC:         -53.622d {-53d 37' 17"} (J2000),
                 -53.756d {-53d 45' 20"} (current),
                 -53.348d {-53d 20' 51"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       5565 [cnts]    Image_Peak=593 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   148     E_range: 25-100 keV
BKG_INTEN:       17680 [cnts]
BKG_TIME:        7326.06 SOD {02:02:06.06} UT
BKG_DUR:         8 [sec]
GRB_DATE:        20527 TJD;   218 DOY;   24/08/05
GRB_TIME:        7342.64 SOD {02:02:22.64} UT
GRB_PHI:         -88.33 [deg]
GRB_THETA:        33.58 [deg]
SOLN_STATUS:     0x30000003
RATE_SIGNIF:     73.46 [sigma]
IMAGE_SIGNIF:    18.95 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  +6  +0  +1  -9  +0 
SUN_POSTN:       135.63d {+09h 02m 30s}  +16.86d {+16d 51' 53"}
SUN_DIST:         85.10 [deg]   Sun_angle= -3.7 [hr] (East of Sun)
MOON_POSTN:      143.75d {+09h 35m 01s}  +18.29d {+18d 17' 10"}
MOON_DIST:        82.75 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      301.76,  9.23 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      216.01,-43.95 [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 = 247.37,14.05 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is spatially(0.00<0.1deg) and temporally(2.0<100sec) coincident with the INTEGRAL event (trignum=10834).  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 05 Aug 24 02:23:21 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1245636,   Seg_Num: 0
GRB_RA:           37.829d {+02h 31m 19s} (J2000),
                  38.285d {+02h 33m 08s} (current),
                  36.908d {+02h 27m 38s} (1950)
GRB_DEC:         +59.074d {+59d 04' 27"} (J2000),
                 +59.182d {+59d 10' 55"} (current),
                 +58.853d {+58d 51' 10"} (1950)
GRB_DATE:        20521 TJD;   212 DOY;   24/07/30
GRB_TIME:        28326.09 SOD {07:52:06.09} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -99.78 [deg]
GRB_THETA:         8.92 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.74 [sigma]
LC_URL:          sw01245636000msb.lc

GCN template for BAT paragraph

  • Click here!
    At 07:52:06 UT, the Swift Burst Alert Telescope (BAT) triggered and
    located GRB 240730 ***A*** (trigger=1246907).  Swift slewed immediately to the burst.
    The BAT on-board calculated location is 
    RA, Dec 37.829, +59.074 which is 
       RA(J2000) = 02h 31m 19s
       Dec(J2000) = +59d 04' 27"
    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.
    
  • 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

     
    

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

    bat_grb_pos_cat.sh 37.829 59.074 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 37.829 59.074
    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 8 5 2 130.764227  -17.874255
     Obj: 2024 8 5 2 203.516168  16.014823
    
  • the object visibility at GSFC, Greenbelt, Maryland
     
    MMT Observatory, Mt. Hopkins, Arizona
          TimeUT       Azimuth     Elevation
     Sun: 2024 8 5 2 108.035566  2.921172
     Obj: 2024 8 5 2 187.352126  1.622917
    
  • the object visibility at MMT, Mt. Hopkins, Arizona
     
    Hale Telescope, Palomar Mountain, California
          TimeUT       Azimuth     Elevation
     Sun: 2024 8 5 2 104.799686  8.231170
     Obj: 2024 8 5 2 184.335369  2.766461
    
  • the object visibility at Hale Telescope, Palomar Mt., California
     
    Mauna Kea, Hawaii
          TimeUT       Azimuth     Elevation
     Sun: 2024 8 5 2 95.673118  40.220234
     Obj: 2024 8 5 2 164.979075  -7.241337
    
  • the object visibility at Mauna Kea, Hawaii
     
    Siding Spring Obs., Australia
          TimeUT       Azimuth     Elevation
     Sun: 2024 8 5 2 183.768464  41.733535
     Obj: 2024 8 5 2 144.399458  -28.693832
    
  • the object visibility at Siding Spring Obs., Australia
     
    Tokyo, Japan
          TimeUT       Azimuth     Elevation
     Sun: 2024 8 5 2 310.138514  65.216568
     Obj: 2024 8 5 2 142.278513  35.043024
    
  • the object visibility at Tokyo, Japan
     
    William Herschel Telescope, La Palma, Canary Islands, Spain
          TimeUT       Azimuth     Elevation
     Sun: 2024 8 5 2 193.358990  -43.367450
     Obj: 2024 8 5 2 215.745770  33.189733
    
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
     
    Gemini South, Cerro Pachon, Chile
          TimeUT       Azimuth     Elevation
     Sun: 2024 8 5 2 81.021208  -48.680065
     Obj: 2024 8 5 2 215.190112  -43.768420
    
  • the object visibility at Gemini South, Cerro Pachon, Chile
     
     
     
    The data/results are in /local/data/bat1/prebascript/trigger1246907/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 Aug  4 22:23:42 EDT 2024