TDRSS lightcurve for Trigger=882809

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 09 Jan 19 11:56:32 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     882809,   Seg_Num: 0
GRB_RA:           55.595d {+03h 42m 23s} (J2000),
                  56.016d {+03h 44m 04s} (current),
                  54.497d {+03h 37m 59s} (1950)
GRB_DEC:         +63.578d {+63d 34' 40"} (J2000),
                 +63.637d {+63d 38' 14"} (current),
                 +63.418d {+63d 25' 06"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       3294 [cnts]    Image_Peak=183 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   137     E_range: 15-50 keV
BKG_INTEN:       19486 [cnts]
BKG_TIME:        42953.77 SOD {11:55:53.77} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18492 TJD;     9 DOY;   19/01/09
GRB_TIME:        42969.20 SOD {11:56:09.20} UT
GRB_PHI:          31.31 [deg]
GRB_THETA:        28.79 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     15.03 [sigma]
IMAGE_SIGNIF:    8.64 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +1  -1  +0  +1 +57  +0 
SUN_POSTN:       290.49d {+19h 21m 57s}  -22.10d {-22d 06' 01"}
SUN_DIST:        125.18 [deg]   Sun_angle= -8.4 [hr] (East of Sun)
MOON_POSTN:      329.36d {+21h 57m 26s}  -15.30d {-15d 17' 44"}
MOON_DIST:       102.20 [deg]
MOON_ILLUM:      10 [%]
GAL_COORDS:      140.63,  6.75 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       70.06, 42.50 [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 = 179.02,3.07 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(1.0<100sec) coincident with the FERMI_GBM event (trignum=568727775).

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 09 Jan 19 12:25:00 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     882809,   Seg_Num: 0
GRB_RA:           55.595d {+03h 42m 23s} (J2000),
                  56.016d {+03h 44m 04s} (current),
                  54.497d {+03h 37m 59s} (1950)
GRB_DEC:         +63.578d {+63d 34' 40"} (J2000),
                 +63.637d {+63d 38' 14"} (current),
                 +63.418d {+63d 25' 06"} (1950)
GRB_DATE:        18492 TJD;     9 DOY;   19/01/09
GRB_TIME:        42969.20 SOD {11:56:09.20} UT
TRIGGER_INDEX:   137
GRB_PHI:          31.31 [deg]
GRB_THETA:        28.79 [deg]
DELTA_TIME:      58.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     15.03 [sigma]
IMAGE_SIGNIF:    8.64 [sigma]
LC_URL:          sw00882809000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 11:56:09 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 190109 ***A*** (trigger=882809).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 55.595, +63.578 which is 
   RA(J2000) = 03h 42m 23s
   Dec(J2000) = +63d 34' 40"
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 ~1851 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: 7.232 s +/- 0.256 s
  Estimated T50 duration: 2.56 s +/- 0.181019 s
  Estimated Peak Interval: MET   568727791.87199998 +/- 0.500000 s
  Estimated background rate 1:     4185.988 near MET 568727777.920000 s
  Estimated background rate 2:     4223.504 near MET 568727887.040000 s
  Estimated total duration: 8.32 s (for data selection)
       (from MET 568727787.840000 to MET 568727796.160000)
  Estimated total fluence: 4634.693918 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 55.595 63.578 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 55.595 63.578
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: 2019 1 9 12 293.856807  -5.842054
 Obj: 2019 1 9 12 168.970542  14.459467
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2019 1 9 12 278.613237  -30.524976
 Obj: 2019 1 9 12 156.775644  15.871781
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2019 1 9 12 274.696844  -35.727135
 Obj: 2019 1 9 12 154.808147  19.461303
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2019 1 9 12 280.187937  -69.102754
 Obj: 2019 1 9 12 151.864922  23.524362
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2019 1 9 12 34.997389  -27.883220
 Obj: 2019 1 9 12 170.659928  -6.452171
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2019 1 9 12 92.212462  -44.938323
 Obj: 2019 1 9 12 175.764554  60.604707
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2019 1 9 12 336.918378  35.530786
 Obj: 2019 1 9 12 194.598853  6.255164
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2019 1 9 12 282.079819  24.847653
 Obj: 2019 1 9 12 165.721571  -54.652908
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger882809/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 Jan  9 07:25:23 EST 2019