TDRSS lightcurve for Trigger=1129775

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 16 Oct 22 23:39:41 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1129775,   Seg_Num: 0
GRB_RA:           38.949d {+02h 35m 48s} (J2000),
                  39.186d {+02h 36m 45s} (current),
                  38.429d {+02h 33m 43s} (1950)
GRB_DEC:         -34.624d {-34d 37' 26"} (J2000),
                 -34.526d {-34d 31' 31"} (current),
                 -34.841d {-34d 50' 28"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       4064 [cnts]    Image_Peak=416 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       15385 [cnts]
BKG_TIME:        85145.95 SOD {23:39:05.95} UT
BKG_DUR:         8 [sec]
GRB_DATE:        19868 TJD;   289 DOY;   22/10/16
GRB_TIME:        85164.19 SOD {23:39:24.19} UT
GRB_PHI:         -69.17 [deg]
GRB_THETA:        24.27 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     44.29 [sigma]
IMAGE_SIGNIF:    15.30 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  +4  +0  +0 +68  +0 
SUN_POSTN:       201.83d {+13h 27m 20s}   -9.16d {-09d 09' 26"}
SUN_DIST:        133.33 [deg]   Sun_angle= 10.8 [hr] (West of Sun)
MOON_POSTN:      107.57d {+07h 10m 17s}  +27.17d {+27d 10' 04"}
MOON_DIST:        89.36 [deg]
MOON_ILLUM:      57 [%]
GAL_COORDS:      237.92,-66.47 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       21.23,-46.64 [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 = 88.55,-19.08 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(2.0<100sec) coincident with the FERMI_GBM event (trignum=687656367).

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 16 Oct 22 23:56:21 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1129775,   Seg_Num: 0
GRB_RA:           38.949d {+02h 35m 48s} (J2000),
                  39.186d {+02h 36m 45s} (current),
                  38.429d {+02h 33m 43s} (1950)
GRB_DEC:         -34.624d {-34d 37' 26"} (J2000),
                 -34.526d {-34d 31' 31"} (current),
                 -34.841d {-34d 50' 28"} (1950)
GRB_DATE:        19868 TJD;   289 DOY;   22/10/16
GRB_TIME:        85164.19 SOD {23:39:24.19} UT
TRIGGER_INDEX:   146
GRB_PHI:         -69.17 [deg]
GRB_THETA:        24.27 [deg]
DELTA_TIME:      -63.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     44.29 [sigma]
IMAGE_SIGNIF:    15.30 [sigma]
LC_URL:          sw01129775000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 23:39:24 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 221016 ***A*** (trigger=1129775).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 38.949, -34.624 which is 
   RA(J2000) = 02h 35m 48s
   Dec(J2000) = -34d 37' 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 ~3720 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: 72.832 s +/- 28.6729 s
  Estimated T50 duration: 5.632 s +/- 0.128 s
  Estimated Peak Interval: MET   687656394.62400007 +/- 0.500000 s
  Estimated background rate 1:     3811.094 near MET 687656379.200000 s
  Estimated background rate 2:     3628.560 near MET 687656554.944000 s
  Estimated total duration: 141.568 s (for data selection)
       (from MET 687656388.800000 to MET 687656530.368000)
  Estimated total fluence: 23479.084612 count
  Created GTI with 12 entries
------------------------------------------

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

    bat_grb_pos_cat.sh 38.949 -34.624 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 38.949 -34.624
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 10 16 23 83.640618  -6.751424
 Obj: 2022 10 16 23 290.534630  -32.339823
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2022 10 16 23 63.398025  21.733602
 Obj: 2022 10 16 23 285.871564  -56.709703
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2022 10 16 23 58.473738  25.336973
 Obj: 2022 10 16 23 281.973478  -62.004086
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2022 10 16 23 24.444076  58.420660
 Obj: 2022 10 16 23 14.868532  -74.740718
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2022 10 16 23 250.290761  44.539067
 Obj: 2022 10 16 23 45.712366  -3.239545
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2022 10 16 23 296.032794  18.909096
 Obj: 2022 10 16 23 65.753672  -28.430237
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2022 10 16 23 119.122029  -55.916941
 Obj: 2022 10 16 23 321.776465  12.605635
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2022 10 16 23 78.493503  -1.514636
 Obj: 2022 10 16 23 304.775676  9.175554
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1129775/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:
Sun Oct 16 19:57:02 EDT 2022