TDRSS lightcurve for Trigger=1016010

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 05 Jan 21 11:56:16 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1016010,   Seg_Num: 0
GRB_RA:          244.978d {+16h 19m 55s} (J2000),
                 245.278d {+16h 21m 07s} (current),
                 244.267d {+16h 17m 04s} (1950)
GRB_DEC:         -15.844d {-15d 50' 38"} (J2000),
                 -15.893d {-15d 53' 35"} (current),
                 -15.725d {-15d 43' 29"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1914 [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:        19219 TJD;     5 DOY;   21/01/05
GRB_TIME:        42901.72 SOD {11:55:01.72} UT
GRB_PHI:         -115.47 [deg]
GRB_THETA:        32.11 [deg]
SOLN_STATUS:     0x513
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    13.54 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  +3 -100  +0 -76  +0 
SUN_POSTN:       286.68d {+19h 06m 42s}  -22.55d {-22d 33' 01"}
SUN_DIST:         39.53 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      185.32d {+12h 21m 17s}   +3.25d {+03d 14' 55"}
MOON_DIST:        62.28 [deg]
MOON_ILLUM:      60 [%]
GAL_COORDS:      358.92, 23.65 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      245.87,  5.52 [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 matches a source in the ground catalog: Sco_X-1,   delta=0.204 [deg].  
COMMENTS:        This is not a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 277.53,10.16 [deg].  
COMMENTS:           
COMMENTS:        This trigger occured while the StarTracker had lost lock, so it is possibly bogus.  

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 05 Jan 21 12:12:24 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1016010,   Seg_Num: 0
GRB_RA:          244.978d {+16h 19m 55s} (J2000),
                 245.278d {+16h 21m 07s} (current),
                 244.267d {+16h 17m 04s} (1950)
GRB_DEC:         -15.844d {-15d 50' 38"} (J2000),
                 -15.893d {-15d 53' 35"} (current),
                 -15.725d {-15d 43' 29"} (1950)
GRB_DATE:        19219 TJD;     5 DOY;   21/01/05
GRB_TIME:        42901.72 SOD {11:55:01.72} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -115.47 [deg]
GRB_THETA:        32.11 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x513
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    13.54 [sigma]
LC_URL:          sw01016010000msb.lc

GCN template for BAT paragraph

  • Click here!
    At 11:55:01 UT, the Swift Burst Alert Telescope (BAT) triggered and
    located GRB 210105 ***A*** (trigger=1016010).  Swift slewed immediately to the burst.
    The BAT on-board calculated location is 
    RA, Dec 244.978, -15.844 which is 
       RA(J2000) = 16h 19m 55s
       Dec(J2000) = -15d 50' 38"
    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 ~812 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 background rate 1:     4170.933 near MET 631540547.520000 s
      Estimated background rate 2:     4059.782 near MET 631540652.480000 s
      Estimated total fluence: 0.000000 count
      Created GTI with 2 entries
    ------------------------------------------
     
    

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

    bat_grb_pos_cat.sh 244.978 -15.844 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 244.978 -15.844
    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: 2021 1 5 12 294.428129  -5.865285
     Obj: 2021 1 5 12 319.943933  24.915030
    
  • the object visibility at GSFC, Greenbelt, Maryland
     
    MMT Observatory, Mt. Hopkins, Arizona
          TimeUT       Azimuth     Elevation
     Sun: 2021 1 5 12 279.256209  -30.397603
     Obj: 2021 1 5 12 293.412580  6.733289
    
  • the object visibility at MMT, Mt. Hopkins, Arizona
     
    Hale Telescope, Palomar Mountain, California
          TimeUT       Azimuth     Elevation
     Sun: 2021 1 5 12 275.382252  -35.611781
     Obj: 2021 1 5 12 290.170005  1.430669
    
  • the object visibility at Hale Telescope, Palomar Mt., California
     
    Mauna Kea, Hawaii
          TimeUT       Azimuth     Elevation
     Sun: 2021 1 5 12 281.394836  -68.735622
     Obj: 2021 1 5 12 277.565649  -29.278679
    
  • the object visibility at Mauna Kea, Hawaii
     
    Siding Spring Obs., Australia
          TimeUT       Azimuth     Elevation
     Sun: 2021 1 5 12 34.395959  -27.682528
     Obj: 2021 1 5 12 348.822705  -42.129823
    
  • the object visibility at Siding Spring Obs., Australia
     
    Tokyo, Japan
          TimeUT       Azimuth     Elevation
     Sun: 2021 1 5 12 91.865754  -45.451754
     Obj: 2021 1 5 12 156.747943  -70.150467
    
  • the object visibility at Tokyo, Japan
     
    William Herschel Telescope, La Palma, Canary Islands, Spain
          TimeUT       Azimuth     Elevation
     Sun: 2021 1 5 12 337.517541  35.238863
     Obj: 2021 1 5 12 27.902878  40.663170
    
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
     
    Gemini South, Cerro Pachon, Chile
          TimeUT       Azimuth     Elevation
     Sun: 2021 1 5 12 282.376390  25.349294
     Obj: 2021 1 5 12 250.463730  57.808666
    
  • the object visibility at Gemini South, Cerro Pachon, Chile
     
     
     
    The data/results are in /local/data/bat1/prebascript/trigger1016010/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 Jan  5 07:12:43 EST 2021