TDRSS lightcurve for Trigger=727422

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 19 Dec 16 07:33:38 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     727422,   Seg_Num: 0
GRB_RA:          119.852d {+07h 59m 25s} (J2000),
                 120.004d {+08h 00m 01s} (current),
                 119.406d {+07h 57m 37s} (1950)
GRB_DEC:         -38.820d {-38d 49' 12"} (J2000),
                 -38.867d {-38d 52' 01"} (current),
                 -38.683d {-38d 40' 56"} (1950)
GRB_ERROR:       4.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=888 [image_cnts]
TRIGGER_DUR:     64.000 [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:        17741 TJD;   354 DOY;   16/12/19
GRB_TIME:        27142.67 SOD {07:32:22.67} UT
GRB_PHI:         -83.84 [deg]
GRB_THETA:        14.24 [deg]
SOLN_STATUS:     0x99D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    5.84 [sigma]
MERIT_PARAMS:     +0  +0 +95  +6  +1  -5  +0  +1 +35  +1 
SUN_POSTN:       267.64d {+17h 50m 33s}  -23.42d {-23d 25' 07"}
SUN_DIST:        110.74 [deg]   Sun_angle= 9.8 [hr] (West of Sun)
MOON_POSTN:      159.15d {+10h 36m 35s}   +8.85d {+08d 50' 57"}
MOON_DIST:        59.99 [deg]
MOON_ILLUM:      68 [%]
GAL_COORDS:      254.54, -4.77 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      136.30,-57.56 [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 matches a source in the on-board catalog: Num=10603=IGR07597-3842,   delta=0.135 [deg].  
COMMENTS:        This matches a source in the ground catalog: IGR07597-3842,   delta=0.135 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:           
COMMENTS:        The IMAGE_SIGNIF is VERY LOW, this is very likely not real.  
COMMENTS:        This trigger occurred at longitude,latitude = 231.99,17.63 [deg].  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 19 Dec 16 07:53:23 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     727422,   Seg_Num: 0
GRB_RA:          119.852d {+07h 59m 25s} (J2000),
                 120.004d {+08h 00m 01s} (current),
                 119.406d {+07h 57m 37s} (1950)
GRB_DEC:         -38.820d {-38d 49' 12"} (J2000),
                 -38.867d {-38d 52' 01"} (current),
                 -38.683d {-38d 40' 56"} (1950)
GRB_DATE:        17741 TJD;   354 DOY;   16/12/19
GRB_TIME:        27142.67 SOD {07:32:22.67} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -83.84 [deg]
GRB_THETA:        14.24 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x99D
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    5.84 [sigma]
LC_URL:          sw00727422000msb.lc

GCN template for BAT paragraph

  • Click here!
    At 07:32:22 UT, the Swift Burst Alert Telescope (BAT) triggered and
    located GRB 161219 ***A*** (trigger=727422).  Swift slewed immediately to the burst.
    The BAT on-board calculated location is 
    RA, Dec 119.852, -38.820 which is 
       RA(J2000) = 07h 59m 25s
       Dec(J2000) = -38d 49' 12"
    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 ~1007 counts/sec (15-350 keV), at ~2 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 background rate 1:     4458.813 near MET 503825640.960000 s
      Estimated background rate 2:     4458.813 near MET 503825640.960000 s
      Estimated total fluence: 0.000000 count
      Created GTI with 1 entries
    ------------------------------------------
     
    

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

    bat_grb_pos_cat.sh 119.852 -38.820 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: 2016 12 19 7 245.386218  -61.413015
     Obj: 2016 12 19 7 356.762403  12.004571
    
  • the object visibility at GSFC, Greenbelt, Maryland
     
    MMT Observatory, Mt. Hopkins, Arizona
          TimeUT       Azimuth     Elevation
     Sun: 2016 12 19 7 147.256901  -80.336665
     Obj: 2016 12 19 7 330.713021  11.033166
    
  • the object visibility at MMT, Mt. Hopkins, Arizona
     
    Hale Telescope, Palomar Mountain, California
          TimeUT       Azimuth     Elevation
     Sun: 2016 12 19 7 131.117439  -75.752192
     Obj: 2016 12 19 7 326.943321  6.995677
    
  • the object visibility at Hale Telescope, Palomar Mt., California
     
    Mauna Kea, Hawaii
          TimeUT       Azimuth     Elevation
     Sun: 2016 12 19 7 76.072817  -43.391762
     Obj: 2016 12 19 7 308.944251  -6.885039
    
  • the object visibility at Mauna Kea, Hawaii
     
    Siding Spring Obs., Australia
          TimeUT       Azimuth     Elevation
     Sun: 2016 12 19 7 76.589643  24.743643
     Obj: 2016 12 19 7 328.168191  -9.795429
    
  • the object visibility at Siding Spring Obs., Australia
     
    Tokyo, Japan
          TimeUT       Azimuth     Elevation
     Sun: 2016 12 19 7 52.008226  10.359570
     Obj: 2016 12 19 7 289.841755  -69.324239
    
  • the object visibility at Tokyo, Japan
     
    William Herschel Telescope, La Palma, Canary Islands, Spain
          TimeUT       Azimuth     Elevation
     Sun: 2016 12 19 7 289.685535  -13.267669
     Obj: 2016 12 19 7 39.782890  5.146403
    
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
     
    Gemini South, Cerro Pachon, Chile
          TimeUT       Azimuth     Elevation
     Sun: 2016 12 19 7 324.611545  -27.035482
     Obj: 2016 12 19 7 9.512466  81.331948
    
  • the object visibility at Gemini South, Cerro Pachon, Chile
     
     
     
    The data/results are in /local/data/bat1/prebascript/trigger727422/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 Dec 19 02:53:42 EST 2016