TDRSS lightcurve for Trigger=1054627

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Jun 21 15:04:02 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1054627,   Seg_Num: 0
GRB_RA:          204.285d {+13h 37m 08s} (J2000),
                 204.547d {+13h 38m 11s} (current),
                 203.674d {+13h 34m 42s} (1950)
GRB_DEC:         +14.480d {+14d 28' 49"} (J2000),
                 +14.372d {+14d 22' 18"} (current),
                 +14.735d {+14d 44' 05"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       2875 [cnts]    Image_Peak=132 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   147     E_range: 25-100 keV
BKG_INTEN:       16961 [cnts]
BKG_TIME:        54204.82 SOD {15:03:24.82} UT
BKG_DUR:         8 [sec]
GRB_DATE:        19375 TJD;   161 DOY;   21/06/10
GRB_TIME:        54223.38 SOD {15:03:43.38} UT
GRB_PHI:          49.36 [deg]
GRB_THETA:        35.78 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     18.81 [sigma]
IMAGE_SIGNIF:    7.79 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  -2  +0  +0 +41  +0 
SUN_POSTN:        79.08d {+05h 16m 19s}  +23.06d {+23d 03' 21"}
SUN_DIST:        114.84 [deg]   Sun_angle= -8.4 [hr] (East of Sun)
MOON_POSTN:       81.14d {+05h 24m 34s}  +24.17d {+24d 09' 57"}
MOON_DIST:       112.64 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      345.31, 73.47 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      196.77, 22.82 [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 = 102.11,-3.90 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(1.0<100sec) coincident with the FERMI_GBM event (trignum=645030227).

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 10 Jun 21 15:21:38 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1054627,   Seg_Num: 0
GRB_RA:          204.285d {+13h 37m 08s} (J2000),
                 204.547d {+13h 38m 11s} (current),
                 203.674d {+13h 34m 42s} (1950)
GRB_DEC:         +14.480d {+14d 28' 49"} (J2000),
                 +14.372d {+14d 22' 18"} (current),
                 +14.735d {+14d 44' 05"} (1950)
GRB_DATE:        19375 TJD;   161 DOY;   21/06/10
GRB_TIME:        54223.38 SOD {15:03:43.38} UT
TRIGGER_INDEX:   147
GRB_PHI:          49.36 [deg]
GRB_THETA:        35.78 [deg]
DELTA_TIME:      31324.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x2003
RATE_SIGNIF:     18.81 [sigma]
IMAGE_SIGNIF:    7.79 [sigma]
LC_URL:          sw01054627000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 15:03:43 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 210610 ***A*** (trigger=1054627).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 204.285, +14.480 which is 
   RA(J2000) = 13h 37m 08s
   Dec(J2000) = +14d 28' 49"
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 ~1984 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

    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: 12.8 s +/- 1.13499 s
  Estimated T50 duration: 3.776 s +/- 0.344651 s
  Estimated Peak Interval: MET   645030250.68799996 +/- 0.500000 s
  Estimated background rate 1:     4072.232 near MET 645030232.800000 s
  Estimated background rate 2:     4234.756 near MET 645030256.576000 s
  Estimated total duration: 15.552 s (for data selection)
       (from MET 645030238.400000 to MET 645030253.952000)
  Estimated total fluence: 4550.864670 count
  Created GTI with 6 entries
------------------------------------------

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

    bat_grb_pos_cat.sh 204.285 14.480 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 204.285 14.480
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: 2021 6 10 15 290.655362  58.317675
 Obj: 2021 6 10 15 205.863498  -32.745291
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2021 6 10 15 260.636633  31.361412
 Obj: 2021 6 10 15 164.478264  -42.613527
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2021 6 10 15 258.828613  26.691658
 Obj: 2021 6 10 15 157.582159  -39.397265
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2021 6 10 15 240.843998  -10.120426
 Obj: 2021 6 10 15 117.283836  -24.938850
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2021 6 10 15 300.737615  -75.341371
 Obj: 2021 6 10 15 113.910581  10.237091
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2021 6 10 15 176.800956  -32.494176
 Obj: 2021 6 10 15 79.901941  39.519559
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2021 6 10 15 82.867954  65.332969
 Obj: 2021 6 10 15 253.238840  -0.585564
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2021 6 10 15 208.438504  30.871693
 Obj: 2021 6 10 15 295.400394  -59.609535
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1054627/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 10 11:22:14 EDT 2021