TDRSS lightcurve for Trigger=1093611

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 17 Jan 22 20:06:23 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1093611,   Seg_Num: 0
GRB_RA:          191.947d {+12h 47m 47s} (J2000),
                 192.243d {+12h 48m 58s} (current),
                 191.276d {+12h 45m 06s} (1950)
GRB_DEC:         -28.744d {-28d 44' 38"} (J2000),
                 -28.864d {-28d 51' 51"} (current),
                 -28.472d {-28d 28' 17"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       9731 [cnts]    Image_Peak=271 [image_cnts]
TRIGGER_DUR:     4.096 [sec] 
TRIGGER_INDEX:   448     E_range: 15-50 keV
BKG_INTEN:       83238 [cnts]
BKG_TIME:        72267.54 SOD {20:04:27.54} UT
BKG_DUR:         40 [sec]
GRB_DATE:        19596 TJD;    17 DOY;   22/01/17
GRB_TIME:        72328.15 SOD {20:05:28.15} UT
GRB_PHI:          31.07 [deg]
GRB_THETA:        12.52 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     11.04 [sigma]
IMAGE_SIGNIF:    7.14 [sigma]
MERIT_PARAMS:     +1  +0  +0  +2  +1  -3  +0  +0  +8  +0 
SUN_POSTN:       299.77d {+19h 59m 06s}  -20.62d {-20d 37' 08"}
SUN_DIST:         94.41 [deg]   Sun_angle= 7.2 [hr] (West of Sun)
MOON_POSTN:      118.87d {+07h 55m 30s}  +25.02d {+25d 01' 12"}
MOON_DIST:        88.68 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      301.97, 34.12 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      202.64,-21.66 [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 = 202.24,-9.18 [deg].

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 17 Jan 22 20:24:17 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1093611,   Seg_Num: 0
GRB_RA:          191.947d {+12h 47m 47s} (J2000),
                 192.243d {+12h 48m 58s} (current),
                 191.276d {+12h 45m 06s} (1950)
GRB_DEC:         -28.744d {-28d 44' 38"} (J2000),
                 -28.864d {-28d 51' 51"} (current),
                 -28.472d {-28d 28' 17"} (1950)
GRB_DATE:        19596 TJD;    17 DOY;   22/01/17
GRB_TIME:        72328.15 SOD {20:05:28.15} UT
TRIGGER_INDEX:   448
GRB_PHI:          31.07 [deg]
GRB_THETA:        12.52 [deg]
DELTA_TIME:      19.00 [sec]
TRIGGER_DUR:     4.096 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     11.04 [sigma]
IMAGE_SIGNIF:    7.14 [sigma]
LC_URL:          sw01093611000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 20:05:28 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 220117 ***A*** (trigger=1093611).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 191.947, -28.744 which is 
   RA(J2000) = 12h 47m 47s
   Dec(J2000) = -28d 44' 38"
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 ~1031 counts/sec (15-350 keV), at ~1 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

    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: 38.144 s +/- 4.098 s
  Estimated T50 duration: 17.792 s +/- 1.30535 s
  Estimated Peak Interval: MET   664142759.61599994 +/- 0.500000 s
  Estimated background rate 1:     3656.459 near MET 664142744.768000 s
  Estimated background rate 2:     3604.639 near MET 664142871.040000 s
  Estimated total duration: 42.624 s (for data selection)
       (from MET 664142756.736000 to MET 664142799.360000)
  Estimated total fluence: 4427.592007 count
  Created GTI with 4 entries
------------------------------------------

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

    bat_grb_pos_cat.sh 191.947 -28.744 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 191.947 -28.744
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 1 17 20 39.742966  19.529955
 Obj: 2022 1 17 20 100.886527  -61.473075
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2022 1 17 20 7.150619  37.335127
 Obj: 2022 1 17 20 74.232460  -33.530124
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2022 1 17 20 0.098070  35.990179
 Obj: 2022 1 17 20 72.855723  -29.163538
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2022 1 17 20 314.855136  34.671342
 Obj: 2022 1 17 20 55.570987  7.501680
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2022 1 17 20 289.728127  7.283642
 Obj: 2022 1 17 20 98.208421  78.026215
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2022 1 17 20 276.810463  -28.112925
 Obj: 2022 1 17 20 356.996229  26.633927
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2022 1 17 20 75.565034  -17.419108
 Obj: 2022 1 17 20 276.767421  -66.754283
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2022 1 17 20 92.085445  47.652425
 Obj: 2022 1 17 20 25.683813  -25.667750
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1093611/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:
Mon Jan 17 15:25:43 EST 2022