TDRSS lightcurve for Trigger=1115156

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 08 Jul 22 04:40:04 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1115156,   Seg_Num: 0
GRB_RA:          103.118d {+06h 52m 28s} (J2000),
                 103.786d {+06h 55m 09s} (current),
                 101.630d {+06h 46m 31s} (1950)
GRB_DEC:         +72.191d {+72d 11' 28"} (J2000),
                 +72.162d {+72d 09' 43"} (current),
                 +72.251d {+72d 15' 03"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       6292 [cnts]    Image_Peak=216 [image_cnts]
TRIGGER_DUR:     2.048 [sec] 
TRIGGER_INDEX:   443     E_range: 15-50 keV
BKG_INTEN:       63024 [cnts]
BKG_TIME:        16738.54 SOD {04:38:58.54} UT
BKG_DUR:         24 [sec]
GRB_DATE:        19768 TJD;   189 DOY;   22/07/08
GRB_TIME:        16769.83 SOD {04:39:29.83} UT
GRB_PHI:         -136.26 [deg]
GRB_THETA:        25.42 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     11.53 [sigma]
IMAGE_SIGNIF:    7.34 [sigma]
MERIT_PARAMS:     +1  +0  +0  +1  +1  -3  +0  +0 -64  +0 
SUN_POSTN:       107.39d {+07h 09m 33s}  +22.47d {+22d 28' 24"}
SUN_DIST:         49.73 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:      208.16d {+13h 52m 39s}   -9.71d {-09d 42' 26"}
MOON_DIST:       103.62 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:      142.79, 25.81 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       96.08, 49.03 [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 = 1.54,-4.97 [deg].

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 08 Jul 22 04:59:42 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1115156,   Seg_Num: 0
GRB_RA:          103.118d {+06h 52m 28s} (J2000),
                 103.786d {+06h 55m 09s} (current),
                 101.630d {+06h 46m 31s} (1950)
GRB_DEC:         +72.191d {+72d 11' 28"} (J2000),
                 +72.162d {+72d 09' 43"} (current),
                 +72.251d {+72d 15' 03"} (1950)
GRB_DATE:        19768 TJD;   189 DOY;   22/07/08
GRB_TIME:        16769.83 SOD {04:39:29.83} UT
TRIGGER_INDEX:   443
GRB_PHI:         -136.26 [deg]
GRB_THETA:        25.42 [deg]
DELTA_TIME:      71.00 [sec]
TRIGGER_DUR:     2.048 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     11.53 [sigma]
IMAGE_SIGNIF:    7.34 [sigma]
LC_URL:          sw01115156000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 04:39:29 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 220708 ***A*** (trigger=1115156).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 103.118, +72.191 which is 
   RA(J2000) = 06h 52m 28s
   Dec(J2000) = +72d 11' 28"
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 ~1515 counts/sec (15-350 keV), at ~2 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: 107.52 s +/- 49.827 s
  Estimated T50 duration: 107.52 s +/- 74.5058 s
  Estimated Peak Interval: MET   678948001.15199995 +/- 0.500000 s
  Estimated background rate 1:     4694.287 near MET 678947986.240000 s
  Estimated background rate 2:     4907.874 near MET 678948144.960000 s
  Estimated total duration: 107.52 s (for data selection)
       (from MET 678947996.480000 to MET 678948104.000000)
  Estimated total fluence: -6268.925510 count
  Created GTI with 7 entries
------------------------------------------

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

    bat_grb_pos_cat.sh 103.118 72.191 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 103.118 72.191
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: 2022 7 8 5 176.165039  -28.453519
 Obj: 2022 7 8 5 179.991747  21.131086
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2022 7 8 5 141.503263  -24.974689
 Obj: 2022 7 8 5 169.701975  16.462761
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2022 7 8 5 137.138939  -20.423734
 Obj: 2022 7 8 5 167.969920  19.075182
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2022 7 8 5 113.708456  0.667182
 Obj: 2022 7 8 5 161.848768  15.396714
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2022 7 8 5 137.626773  22.639552
 Obj: 2022 7 8 5 166.605248  -18.229659
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2022 7 8 5 68.839445  64.553567
 Obj: 2022 7 8 5 166.703178  49.285892
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2022 7 8 5 232.279267  -16.095439
 Obj: 2022 7 8 5 196.082730  18.597316
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2022 7 8 5 345.097642  -81.895575
 Obj: 2022 7 8 5 182.688672  -48.079620
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1115156/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:
Fri Jul  8 01:00:06 EDT 2022