TDRSS lightcurve for Trigger=1203197

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 19 Dec 23 17:17:07 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1203197,   Seg_Num: 0
GRB_RA:          245.292d {+16h 21m 10s} (J2000),
                 245.634d {+16h 22m 32s} (current),
                 244.581d {+16h 18m 19s} (1950)
GRB_DEC:         -15.798d {-15d 47' 52"} (J2000),
                 -15.854d {-15d 51' 12"} (current),
                 -15.680d {-15d 40' 48"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=7898 [image_cnts]
TRIGGER_DUR:     328.000 [sec]   (=5.5 [min])
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:        20297 TJD;   353 DOY;   23/12/19
GRB_TIME:        61119.42 SOD {16:58:39.42} UT
GRB_PHI:         -67.84 [deg]
GRB_THETA:        37.50 [deg]
SOLN_STATUS:     0x413
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    14.05 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  +3 -100  +0 -92  +0 
SUN_POSTN:       267.31d {+17h 49m 15s}  -23.41d {-23d 24' 44"}
SUN_DIST:         21.74 [deg]   Sun_angle= 1.4 [hr] (West of Sun)
MOON_POSTN:      357.93d {+23h 51m 43s}   -3.38d {-03d 22' 30"}
MOON_DIST:       110.38 [deg]
MOON_ILLUM:      49 [%]
GAL_COORDS:      359.17, 23.45 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      246.16,  5.62 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 60 sec past the end of the trigger integration interval;  
COMMENTS:        probably due to it occurring during a Malindi downlink session.  
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 = 264.45,-13.54 [deg].

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 19 Dec 23 17:17:53 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1203197,   Seg_Num: 0
GRB_RA:          245.292d {+16h 21m 10s} (J2000),
                 245.634d {+16h 22m 32s} (current),
                 244.581d {+16h 18m 19s} (1950)
GRB_DEC:         -15.798d {-15d 47' 52"} (J2000),
                 -15.854d {-15d 51' 12"} (current),
                 -15.680d {-15d 40' 48"} (1950)
GRB_DATE:        20297 TJD;   353 DOY;   23/12/19
GRB_TIME:        61119.42 SOD {16:58:39.42} UT
TRIGGER_INDEX:   20000
GRB_PHI:         -67.84 [deg]
GRB_THETA:        37.50 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     328.000 [sec]   (=5.5 [min])
SOLN_STATUS:     0x413
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    14.05 [sigma]
LC_URL:          sw01203197000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 16:58:39 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 231219 ***A*** (trigger=1203197).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 245.292, -15.798 which is 
   RA(J2000) = 16h 21m 10s
   Dec(J2000) = -15d 47' 52"
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 ~1343 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

    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: 120.832 s +/- 17.3543 s
  Estimated T50 duration: 49.152 s +/- 20.48 s
  Estimated Peak Interval: MET   724698049.85599995 +/- 0.500000 s
  Estimated background rate 1:     4241.938 near MET 724697942.016000 s
  Estimated background rate 2:     4368.457 near MET 724698117.440000 s
  Estimated total duration: 140.928 s (for data selection)
       (from MET 724697956.032000 to MET 724698096.960000)
  Estimated total fluence: 10603.890240 count
  Created GTI with 13 entries
------------------------------------------

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

    bat_grb_pos_cat.sh 245.292 -15.798 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 245.292 -15.798
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: 2023 12 19 17 358.299130  27.522846
 Obj: 2023 12 19 17 22.868303  32.002789
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2023 12 19 17 323.775483  25.164501
 Obj: 2023 12 19 17 342.184860  40.578594
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2023 12 19 17 319.319504  20.721107
 Obj: 2023 12 19 17 335.645774  37.206008
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2023 12 19 17 295.265112  0.630302
 Obj: 2023 12 19 17 297.501007  22.259922
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2023 12 19 17 316.723497  -20.810691
 Obj: 2023 12 19 17 296.434573  -11.152141
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2023 12 19 17 252.909340  -63.522848
 Obj: 2023 12 19 17 260.008559  -42.193090
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2023 12 19 17 52.794878  14.011581
 Obj: 2023 12 19 17 70.870075  1.632075
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2023 12 19 17 150.235805  82.109432
 Obj: 2023 12 19 17 115.563400  62.192400
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1203197/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 Dec 19 12:20:22 EST 2023