TDRSS lightcurve for Trigger=1014316

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 23 Dec 20 17:58:41 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1014316,   Seg_Num: 0
GRB_RA:          132.849d {+08h 51m 24s} (J2000),
                 133.367d {+08h 53m 28s} (current),
                 131.600d {+08h 46m 24s} (1950)
GRB_DEC:         +71.174d {+71d 10' 26"} (J2000),
                 +71.094d {+71d 05' 38"} (current),
                 +71.361d {+71d 21' 39"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       2902 [cnts]    Image_Peak=162 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       16813 [cnts]
BKG_TIME:        64693.79 SOD {17:58:13.79} UT
BKG_DUR:         8 [sec]
GRB_DATE:        19206 TJD;   358 DOY;   20/12/23
GRB_TIME:        64706.97 SOD {17:58:26.97} UT
GRB_PHI:          91.75 [deg]
GRB_THETA:        25.08 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     15.19 [sigma]
IMAGE_SIGNIF:    8.13 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  -2  +0  +0 +60  +0 
SUN_POSTN:       272.59d {+18h 10m 22s}  -23.41d {-23d 24' 51"}
SUN_DIST:        126.95 [deg]   Sun_angle= 9.3 [hr] (West of Sun)
MOON_POSTN:       21.77d {+01h 27m 05s}   +4.26d {+04d 15' 22"}
MOON_DIST:        92.79 [deg]
MOON_ILLUM:      67 [%]
GAL_COORDS:      142.91, 35.11 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      110.29, 50.74 [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 = 182.20,15.00 [deg].

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 23 Dec 20 18:26:21 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1014316,   Seg_Num: 0
GRB_RA:          132.849d {+08h 51m 24s} (J2000),
                 133.367d {+08h 53m 28s} (current),
                 131.600d {+08h 46m 24s} (1950)
GRB_DEC:         +71.174d {+71d 10' 26"} (J2000),
                 +71.094d {+71d 05' 38"} (current),
                 +71.361d {+71d 21' 39"} (1950)
GRB_DATE:        19206 TJD;   358 DOY;   20/12/23
GRB_TIME:        64706.97 SOD {17:58:26.97} UT
TRIGGER_INDEX:   146
GRB_PHI:          91.75 [deg]
GRB_THETA:        25.08 [deg]
DELTA_TIME:      -38.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     15.19 [sigma]
IMAGE_SIGNIF:    8.13 [sigma]
LC_URL:          sw01014316000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 17:58:26 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 201223 ***A*** (trigger=1014316).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 132.849, +71.174 which is 
   RA(J2000) = 08h 51m 24s
   Dec(J2000) = +71d 10' 26"
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 ~1632 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: 8 s +/- 5.28 s
  Estimated T50 duration: 8 s +/- 5.28 s
  Estimated Peak Interval: MET   630439133.56800008 +/- 0.500000 s
  Estimated background rate 1:     4085.875 near MET 630439112.800000 s
  Estimated background rate 2:     4038.340 near MET 630439269.568000 s
  Estimated total duration: 103.616 s (for data selection)
       (from MET 630439116.800000 to MET 630439220.416000)
  Estimated total fluence: 1237.816195 count
  Created GTI with 10 entries
------------------------------------------

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

    bat_grb_pos_cat.sh 132.849 71.174 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 132.849 71.174
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: 2020 12 23 18 13.084095  26.406997
 Obj: 2020 12 23 18 170.561405  21.873384
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2020 12 23 18 337.117215  31.231856
 Obj: 2020 12 23 18 162.083283  21.528790
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2020 12 23 18 331.735439  27.549106
 Obj: 2020 12 23 18 160.683164  24.719823
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2020 12 23 18 300.924678  12.593735
 Obj: 2020 12 23 18 160.115292  24.048351
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2020 12 23 18 306.827325  -11.619120
 Obj: 2020 12 23 18 174.115832  -13.207257
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2020 12 23 18 264.733220  -51.871878
 Obj: 2020 12 23 18 179.280775  53.280249
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2020 12 23 18 60.820312  3.433982
 Obj: 2020 12 23 18 189.829178  12.178951
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2020 12 23 18 108.101644  71.995292
 Obj: 2020 12 23 18 169.607853  -47.494021
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1014316/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:
Wed Dec 23 13:27:04 EST 2020