TDRSS lightcurve for Trigger=846299

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 05 Jul 18 15:42:36 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     846299,   Seg_Num: 0
GRB_RA:          212.594d {+14h 10m 23s} (J2000),
                 212.843d {+14h 11m 22s} (current),
                 211.924d {+14h 07m 42s} (1950)
GRB_DEC:         -11.630d {-11d 37' 48"} (J2000),
                 -11.717d {-11d 43' 01"} (current),
                 -11.395d {-11d 23' 41"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1229 [image_cnts]
TRIGGER_DUR:     72.000 [sec] 
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        18304 TJD;   186 DOY;   18/07/05
GRB_TIME:        56474.78 SOD {15:41:14.78} UT
GRB_PHI:          -3.30 [deg]
GRB_THETA:        47.55 [deg]
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.79 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  -2  +0  +0 +35  +0 
SUN_POSTN:       104.75d {+06h 58m 59s}  +22.74d {+22d 44' 38"}
SUN_DIST:        111.04 [deg]   Sun_angle= -7.2 [hr] (East of Sun)
MOON_POSTN:        6.86d {+00h 27m 25s}   -2.06d {-02d 03' 24"}
MOON_DIST:       150.73 [deg]
MOON_ILLUM:      57 [%]
GAL_COORDS:      331.80, 46.77 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      214.36,  1.43 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
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 = 132.75,-13.82 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 05 Jul 18 15:58:41 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     846299,   Seg_Num: 0
GRB_RA:          212.594d {+14h 10m 23s} (J2000),
                 212.843d {+14h 11m 22s} (current),
                 211.924d {+14h 07m 42s} (1950)
GRB_DEC:         -11.630d {-11d 37' 48"} (J2000),
                 -11.717d {-11d 43' 01"} (current),
                 -11.395d {-11d 23' 41"} (1950)
GRB_DATE:        18304 TJD;   186 DOY;   18/07/05
GRB_TIME:        56474.78 SOD {15:41:14.78} UT
TRIGGER_INDEX:   20000
GRB_PHI:          -3.30 [deg]
GRB_THETA:        47.55 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     72.000 [sec] 
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.79 [sigma]
LC_URL:          sw00846299000msb.lc

GCN template for BAT paragraph

  • Click here!
    At 15:41:14 UT, the Swift Burst Alert Telescope (BAT) triggered and
    located GRB 180705 ***A*** (trigger=846299).  Swift slewed immediately to the burst.
    The BAT on-board calculated location is 
    RA, Dec 212.594, -11.630 which is 
       RA(J2000) = 14h 10m 23s
       Dec(J2000) = -11d 37' 48"
    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 ~6491 counts/sec (15-350 keV), at ~4 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: 123.904 s +/- 2.98545 s
      Estimated T50 duration: 65.536 s +/- 4.096 s
      Estimated Peak Interval: MET   552498243.00799990 +/- 0.500000 s
      Estimated background rate 1:     5783.401 near MET 552498085.248000 s
      Estimated background rate 2:        0.000 near MET 552498269.632000 s
      Estimated total duration: 158.848 s (for data selection)
           (from MET 552498098.496000 to MET 552498257.344000)
      Estimated total fluence: 440178.118230 count
      Created GTI with 7 entries
    ------------------------------------------
     
    

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

    bat_grb_pos_cat.sh 212.594 -11.630 0.083
    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: 2018 7 5 15 289.772517  57.198358
     Obj: 2018 7 5 15 241.811303  -46.462450
    
  • the object visibility at GSFC, Greenbelt, Maryland
     
    MMT Observatory, Mt. Hopkins, Arizona
          TimeUT       Azimuth     Elevation
     Sun: 2018 7 5 15 260.403636  30.163942
     Obj: 2018 7 5 15 192.295183  -69.645862
    
  • the object visibility at MMT, Mt. Hopkins, Arizona
     
    Hale Telescope, Palomar Mountain, California
          TimeUT       Azimuth     Elevation
     Sun: 2018 7 5 15 258.538552  25.505895
     Obj: 2018 7 5 15 175.644368  -68.324922
    
  • the object visibility at Hale Telescope, Palomar Mt., California
     
    Mauna Kea, Hawaii
          TimeUT       Azimuth     Elevation
     Sun: 2018 7 5 15 240.582979  -11.306568
     Obj: 2018 7 5 15 95.650574  -50.554782
    
  • the object visibility at Mauna Kea, Hawaii
     
    Siding Spring Obs., Australia
          TimeUT       Azimuth     Elevation
     Sun: 2018 7 5 15 304.687866  -76.062792
     Obj: 2018 7 5 15 82.807269  10.841082
    
  • the object visibility at Siding Spring Obs., Australia
     
    Tokyo, Japan
          TimeUT       Azimuth     Elevation
     Sun: 2018 7 5 15 175.388670  -32.732735
     Obj: 2018 7 5 15 67.363367  11.042930
    
  • the object visibility at Tokyo, Japan
     
    William Herschel Telescope, La Palma, Canary Islands, Spain
          TimeUT       Azimuth     Elevation
     Sun: 2018 7 5 15 81.193969  66.335648
     Obj: 2018 7 5 15 283.782272  0.651003
    
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
     
    Gemini South, Cerro Pachon, Chile
          TimeUT       Azimuth     Elevation
     Sun: 2018 7 5 15 209.818688  30.613061
     Obj: 2018 7 5 15 307.782868  -30.221599
    
  • the object visibility at Gemini South, Cerro Pachon, Chile
     
     
     
    The data/results are in /local/data/bat1/prebascript/trigger846299/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 Jul  5 11:59:02 EDT 2018