TDRSS lightcurve for Trigger=614094

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 30 Sep 14 19:42:01 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     614094,   Seg_Num: 0
GRB_RA:            6.355d {+00h 25m 25s} (J2000),
                   6.548d {+00h 26m 11s} (current),
                   5.701d {+00h 22m 48s} (1950)
GRB_DEC:         +24.275d {+24d 16' 30"} (J2000),
                 +24.357d {+24d 21' 24"} (current),
                 +23.998d {+23d 59' 53"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       3883 [cnts]    Image_Peak=183 [image_cnts]
TRIGGER_DUR:     0.512 [sec] 
TRIGGER_INDEX:   207     E_range: 50-350 keV
BKG_INTEN:       19113 [cnts]
BKG_TIME:        70891.40 SOD {19:41:31.40} UT
BKG_DUR:         8 [sec]
GRB_DATE:        16930 TJD;   273 DOY;   14/09/30
GRB_TIME:        70902.02 SOD {19:41:42.02} UT
GRB_PHI:          79.68 [deg]
GRB_THETA:        32.87 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     73.13 [sigma]
IMAGE_SIGNIF:    9.73 [sigma]
MERIT_PARAMS:     +1  +0  +0  -1  +3  +0  +0  +0 +93  +0 
SUN_POSTN:       186.95d {+12h 27m 48s}   -3.00d {-03d 00' 04"}
SUN_DIST:        158.64 [deg]   Sun_angle= -12.0 [hr] (East of Sun)
MOON_POSTN:      264.74d {+17h 38m 58s}  -18.48d {-18d 28' 50"}
MOON_DIST:       107.91 [deg]
MOON_ILLUM:      39 [%]
GAL_COORDS:      115.38,-38.21 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       15.78, 19.70 [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 = 319.76,18.09 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 30 Sep 14 19:58:32 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     614094,   Seg_Num: 0
GRB_RA:            6.355d {+00h 25m 25s} (J2000),
                   6.548d {+00h 26m 11s} (current),
                   5.701d {+00h 22m 48s} (1950)
GRB_DEC:         +24.275d {+24d 16' 30"} (J2000),
                 +24.357d {+24d 21' 24"} (current),
                 +23.998d {+23d 59' 53"} (1950)
GRB_DATE:        16930 TJD;   273 DOY;   14/09/30
GRB_TIME:        70902.02 SOD {19:41:42.02} UT
TRIGGER_INDEX:   207
GRB_PHI:          79.68 [deg]
GRB_THETA:        32.87 [deg]
DELTA_TIME:      58.00 [sec]
TRIGGER_DUR:     0.512 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     73.13 [sigma]
IMAGE_SIGNIF:    9.73 [sigma]
LC_URL:          sw00614094000msb.lc

GCN template for BAT paragraph

  • Click here!
    At 19:41:42 UT, the Swift Burst Alert Telescope (BAT) triggered and
    located GRB 140930 ***A*** (trigger=614094).  Swift slewed immediately to the burst.
    The BAT on-board calculated location is 
    RA, Dec 6.355, +24.275 which is 
       RA(J2000) = 00h 25m 25s
       Dec(J2000) = +24d 16' 30"
    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 ~11382 counts/sec (15-350 keV), at ~0 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: 149.632 s +/- 4.096 s
      Estimated T50 duration: 117.76 s +/- 8.50701 s
      Estimated Peak Interval: MET   433798915.07199997 +/- 0.500000 s
      Estimated background rate 1:     5515.496 near MET 433798902.848000 s
      Estimated background rate 2:     5274.867 near MET 433799086.784000 s
      Estimated total duration: 157.952 s (for data selection)
           (from MET 433798914.496000 to MET 433799072.448000)
      Estimated total fluence: 22564.816482 count
      Created GTI with 8 entries
    ------------------------------------------
     
    

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

    bat_grb_pos_cat.sh 6.355 24.275 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: 2014 9 30 19 40.648161  39.632022
     Obj: 2014 9 30 19 209.599816  -20.539835
    
  • the object visibility at GSFC, Greenbelt, Maryland
     
    MMT Observatory, Mt. Hopkins, Arizona
          TimeUT       Azimuth     Elevation
     Sun: 2014 9 30 19 353.254234  55.105700
     Obj: 2014 9 30 19 176.182024  -33.888716
    
  • the object visibility at MMT, Mt. Hopkins, Arizona
     
    Hale Telescope, Palomar Mountain, California
          TimeUT       Azimuth     Elevation
     Sun: 2014 9 30 19 343.726146  52.460769
     Obj: 2014 9 30 19 169.872507  -31.622220
    
  • the object visibility at Hale Telescope, Palomar Mt., California
     
    Mauna Kea, Hawaii
          TimeUT       Azimuth     Elevation
     Sun: 2014 9 30 19 290.132474  37.233970
     Obj: 2014 9 30 19 131.260940  -25.676184
    
  • the object visibility at Mauna Kea, Hawaii
     
    Siding Spring Obs., Australia
          TimeUT       Azimuth     Elevation
     Sun: 2014 9 30 19 279.905197  -10.288182
     Obj: 2014 9 30 19 117.604205  -1.872342
    
  • the object visibility at Siding Spring Obs., Australia
     
    Tokyo, Japan
          TimeUT       Azimuth     Elevation
     Sun: 2014 9 30 19 254.196913  -26.647009
     Obj: 2014 9 30 19 95.926308  37.597192
    
  • the object visibility at Tokyo, Japan
     
    William Herschel Telescope, La Palma, Canary Islands, Spain
          TimeUT       Azimuth     Elevation
     Sun: 2014 9 30 19 86.963559  -0.726361
     Obj: 2014 9 30 19 248.152580  11.015932
    
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
     
    Gemini South, Cerro Pachon, Chile
          TimeUT       Azimuth     Elevation
     Sun: 2014 9 30 19 121.688954  46.300958
     Obj: 2014 9 30 19 271.515251  -57.264642
    
  • the object visibility at Gemini South, Cerro Pachon, Chile
     
     
     
    The data/results are in /local/data/bat1/prebascript/trigger614094/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:
    Tue Sep 30 15:59:02 EDT 2014