TDRSS lightcurve for Trigger=1176135

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 22 Jun 23 10:11:29 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1176135,   Seg_Num: 0
GRB_RA:          292.532d {+19h 30m 08s} (J2000),
                 292.911d {+19h 31m 39s} (current),
                 291.724d {+19h 26m 54s} (1950)
GRB_DEC:         -32.922d {-32d 55' 16"} (J2000),
                 -32.871d {-32d 52' 15"} (current),
                 -33.026d {-33d 01' 34"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       1376 [cnts]    Image_Peak=91 [image_cnts]
TRIGGER_DUR:     0.512 [sec] 
TRIGGER_INDEX:   68     E_range: 15-50 keV
BKG_INTEN:       16073 [cnts]
BKG_TIME:        36248.48 SOD {10:04:08.48} UT
BKG_DUR:         8 [sec]
GRB_DATE:        20117 TJD;   173 DOY;   23/06/22
GRB_TIME:        36261.28 SOD {10:04:21.28} UT
GRB_PHI:          77.22 [deg]
GRB_THETA:        31.88 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     15.09 [sigma]
IMAGE_SIGNIF:    7.44 [sigma]
MERIT_PARAMS:     +1  +0  +0  -1  +1  -2  +0  +0 +93  +0 
SUN_POSTN:        90.83d {+06h 03m 19s}  +23.43d {+23d 26' 00"}
SUN_DIST:        158.43 [deg]   Sun_angle= 10.5 [hr] (West of Sun)
MOON_POSTN:      142.00d {+09h 28m 01s}  +20.06d {+20d 03' 48"}
MOON_DIST:       151.11 [deg]
MOON_ILLUM:      16 [%]
GAL_COORDS:        6.06,-21.92 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      289.13,-10.97 [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 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 = 258.70,20.40 [deg].

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 22 Jun 23 10:22:43 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1176135,   Seg_Num: 0
GRB_RA:          292.532d {+19h 30m 08s} (J2000),
                 292.911d {+19h 31m 39s} (current),
                 291.724d {+19h 26m 54s} (1950)
GRB_DEC:         -32.922d {-32d 55' 16"} (J2000),
                 -32.871d {-32d 52' 15"} (current),
                 -33.026d {-33d 01' 34"} (1950)
GRB_DATE:        20117 TJD;   173 DOY;   23/06/22
GRB_TIME:        36261.28 SOD {10:04:21.28} UT
TRIGGER_INDEX:   68
GRB_PHI:          77.22 [deg]
GRB_THETA:        31.88 [deg]
DELTA_TIME:      -3272.00 [sec]
TRIGGER_DUR:     0.512 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     15.09 [sigma]
IMAGE_SIGNIF:    7.44 [sigma]
LC_URL:          sw01176135000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 10:04:21 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 230622 ***A*** (trigger=1176135).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 292.532, -32.922 which is 
   RA(J2000) = 19h 30m 08s
   Dec(J2000) = -32d 55' 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 ~2023 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

    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: 91.648 s +/- 57.0432 s
  Estimated T50 duration: 91.648 s +/- 61.1294 s
  Estimated Peak Interval: MET   709121093.69599998 +/- 0.500000 s
  Estimated background rate 1:     3758.062 near MET 709121080.832000 s
  Estimated background rate 2:     3631.560 near MET 709121231.616000 s
  Estimated total duration: 91.648 s (for data selection)
       (from MET 709121092.864000 to MET 709121184.512000)
  Estimated total fluence: -1146.055142 count
  Created GTI with 5 entries
------------------------------------------

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

    bat_grb_pos_cat.sh 292.532 -32.922 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 292.532 -32.922
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 6 22 10 240.881493  1.773402
 Obj: 2023 6 22 10 40.223542  4.411025
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2023 6 22 10 218.285333  -23.933771
 Obj: 2023 6 22 10 14.685532  23.654473
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2023 6 22 10 212.732082  -25.509464
 Obj: 2023 6 22 10 9.180425  23.067849
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2023 6 22 10 171.418589  -46.290883
 Obj: 2023 6 22 10 332.196925  30.626016
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2023 6 22 10 98.137227  -35.173514
 Obj: 2023 6 22 10 296.599146  20.872079
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2023 6 22 10 115.623309  4.228942
 Obj: 2023 6 22 10 293.582817  -25.778949
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2023 6 22 10 265.160147  46.063623
 Obj: 2023 6 22 10 66.573297  -30.122302
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2023 6 22 10 254.597970  -21.453752
 Obj: 2023 6 22 10 71.643312  42.820806
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1176135/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:
Thu Jun 22 06:24:23 EDT 2023