TDRSS lightcurve for Trigger=1005428

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 11 Nov 20 09:45:18 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1005428,   Seg_Num: 0
GRB_RA:          277.701d {+18h 30m 48s} (J2000),
                 277.982d {+18h 31m 56s} (current),
                 277.028d {+18h 28m 07s} (1950)
GRB_DEC:          -6.741d {-06d 44' 27"} (J2000),
                  -6.725d {-06d 43' 30"} (current),
                  -6.777d {-06d 46' 35"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       418 [cnts]    Image_Peak=84 [image_cnts]
TRIGGER_DUR:     0.008 [sec] 
TRIGGER_INDEX:   10109     E_range: 15-50 keV
BKG_INTEN:       27615 [cnts]
BKG_TIME:        35094.03 SOD {09:44:54.03} UT
BKG_DUR:         8 [sec]
GRB_DATE:        19164 TJD;   316 DOY;   20/11/11
GRB_TIME:        35106.19 SOD {09:45:06.19} UT
GRB_PHI:          13.46 [deg]
GRB_THETA:         5.32 [deg]
SOLN_STATUS:     0x1000000D
RATE_SIGNIF:     73.53 [sigma]
IMAGE_SIGNIF:    10.59 [sigma]
MERIT_PARAMS:     +0  +0 +100  -7  +1  +0  +0  +1 -63  +0 
SUN_POSTN:       227.02d {+15h 08m 04s}  -17.59d {-17d 35' 40"}
SUN_DIST:         50.83 [deg]   Sun_angle= -3.4 [hr] (East of Sun)
MOON_POSTN:      178.53d {+11h 54m 06s}   +6.27d {+06d 15' 54"}
MOON_DIST:       100.08 [deg]
MOON_ILLUM:      20 [%]
GAL_COORDS:       24.58,  1.49 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      277.98, 16.49 [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 matches a source in the on-board catalog: Num=24219=(null) (probably an AT_Slot).  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is not a GRB.  
COMMENTS:        This is an interesting source.  
COMMENTS:        This trigger occurred at longitude,latitude = 53.32,1.99 [deg].  
COMMENTS:

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 11 Nov 20 10:04:02 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1005428,   Seg_Num: 0
GRB_RA:          277.701d {+18h 30m 48s} (J2000),
                 277.982d {+18h 31m 56s} (current),
                 277.028d {+18h 28m 07s} (1950)
GRB_DEC:          -6.741d {-06d 44' 27"} (J2000),
                  -6.725d {-06d 43' 30"} (current),
                  -6.777d {-06d 46' 35"} (1950)
GRB_DATE:        19164 TJD;   316 DOY;   20/11/11
GRB_TIME:        35106.42 SOD {09:45:06.42} UT
TRIGGER_INDEX:   10109
GRB_PHI:          13.46 [deg]
GRB_THETA:         5.32 [deg]
DELTA_TIME:      40.00 [sec]
TRIGGER_DUR:     0.008 [sec] 
SOLN_STATUS:     0xD
RATE_SIGNIF:     73.53 [sigma]
IMAGE_SIGNIF:    10.59 [sigma]
LC_URL:          sw01005428000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 09:45:06 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 201111 ***A*** (trigger=1005428).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 277.701, -6.741 which is 
   RA(J2000) = 18h 30m 48s
   Dec(J2000) = -06d 44' 27"
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 ~6484 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: 0.128 s +/- 0.128 s
  Estimated T50 duration: 0.128 s +/- 0.128 s
  Estimated Peak Interval: MET   626780732.48000002 +/- 0.500000 s
  Estimated background rate 1:     5807.957 near MET 626780720.576000 s
  Estimated background rate 2:     5769.786 near MET 626780825.600000 s
  Estimated total duration: 0.128 s (for data selection)
       (from MET 626780732.352000 to MET 626780732.480000)
  Estimated total fluence: 872.270620 count
  Created GTI with 3 entries
------------------------------------------

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

    bat_grb_pos_cat.sh 277.701 -6.741 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 277.701 -6.741
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: 2020 11 11 10 275.916330  -21.254722
 Obj: 2020 11 11 10 222.304644  -50.322896
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2020 11 11 10 260.228580  -49.124753
 Obj: 2020 11 11 10 160.906041  -63.865902
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2020 11 11 10 253.545179  -53.660905
 Obj: 2020 11 11 10 150.314526  -60.259460
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2020 11 11 10 139.628852  -87.090018
 Obj: 2020 11 11 10 96.691677  -37.103926
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2020 11 11 10 56.843764  -16.369156
 Obj: 2020 11 11 10 93.805969  19.153317
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2020 11 11 10 83.669300  -22.792888
 Obj: 2020 11 11 10 62.768783  23.794177
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2020 11 11 10 311.636334  26.813141
 Obj: 2020 11 11 10 273.365616  -7.937517
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2020 11 11 10 288.916529  2.569501
 Obj: 2020 11 11 10 315.482471  -42.192087
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1005428/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:
Wed Nov 11 05:04:43 EST 2020