TDRSS lightcurve for Trigger=1149250

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 16 Jan 23 15:34:36 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1149250,   Seg_Num: 0
GRB_RA:          223.463d {+14h 53m 51s} (J2000),
                 223.785d {+14h 55m 08s} (current),
                 222.765d {+14h 51m 04s} (1950)
GRB_DEC:         -16.871d {-16d 52' 16"} (J2000),
                 -16.964d {-16d 57' 50"} (current),
                 -16.668d {-16d 40' 04"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=2150 [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:        19960 TJD;    16 DOY;   23/01/16
GRB_TIME:        56001.41 SOD {15:33:21.41} UT
GRB_PHI:          32.07 [deg]
GRB_THETA:        30.46 [deg]
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    13.88 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  +3  -5  +0 -33  +0 
SUN_POSTN:       298.24d {+19h 52m 59s}  -20.90d {-20d 54' 00"}
SUN_DIST:         69.91 [deg]   Sun_angle= 5.0 [hr] (West of Sun)
MOON_POSTN:      222.51d {+14h 50m 03s}  -16.94d {-16d 56' 11"}
MOON_DIST:         1.22 [deg]
MOON_ILLUM:      34 [%]
GAL_COORDS:      340.48, 36.92 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      226.01, -0.25 [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 does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 264.79,0.90 [deg].

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 16 Jan 23 15:51:01 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1149250,   Seg_Num: 0
GRB_RA:          223.463d {+14h 53m 51s} (J2000),
                 223.785d {+14h 55m 08s} (current),
                 222.765d {+14h 51m 04s} (1950)
GRB_DEC:         -16.871d {-16d 52' 16"} (J2000),
                 -16.964d {-16d 57' 50"} (current),
                 -16.668d {-16d 40' 04"} (1950)
GRB_DATE:        19960 TJD;    16 DOY;   23/01/16
GRB_TIME:        56001.41 SOD {15:33:21.41} UT
TRIGGER_INDEX:   20000
GRB_PHI:          32.07 [deg]
GRB_THETA:        30.46 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    13.88 [sigma]
LC_URL:          sw01149250000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 15:33:21 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 230116 ***A*** (trigger=1149250).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 223.463, -16.871 which is 
   RA(J2000) = 14h 53m 51s
   Dec(J2000) = -16d 52' 16"
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 ~882 counts/sec (15-350 keV), at ~6 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

    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: 47.104 s +/- 2.89772 s
  Estimated T50 duration: 28.672 s +/- 2.90196 s
  Estimated Peak Interval: MET   695576088.89599991 +/- 0.500000 s
  Estimated background rate 1:     2764.504 near MET 695576023.168000 s
  Estimated background rate 2:     2720.398 near MET 695576127.808000 s
  Estimated total duration: 81.28 s (for data selection)
       (from MET 695576038.336000 to MET 695576119.616000)
  Estimated total fluence: 5566.716379 count
  Created GTI with 4 entries
------------------------------------------

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

    bat_grb_pos_cat.sh 223.463 -16.871 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 223.463 -16.871
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 1 16 15 324.946737  21.766066
 Obj: 2023 1 16 15 41.467133  22.848727
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2023 1 16 15 298.914046  5.692583
 Obj: 2023 1 16 15 7.148231  41.023246
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2023 1 16 15 295.649810  0.445534
 Obj: 2023 1 16 15 359.561216  39.653816
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2023 1 16 15 283.757374  -28.067261
 Obj: 2023 1 16 15 311.223142  36.890211
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2023 1 16 15 346.988917  -36.748091
 Obj: 2023 1 16 15 286.783245  5.042677
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2023 1 16 15 158.883247  -75.679310
 Obj: 2023 1 16 15 272.997078  -26.656891
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2023 1 16 15 27.902884  35.094188
 Obj: 2023 1 16 15 78.828788  -15.472456
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2023 1 16 15 256.918173  62.361149
 Obj: 2023 1 16 15 97.231205  46.499442
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1149250/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 Jan 16 10:51:42 EST 2023