TDRSS lightcurve for Trigger=1101053

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 03 Apr 22 20:42:57 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1101053,   Seg_Num: 0
GRB_RA:          191.025d {+12h 44m 06s} (J2000),
                 189.879d {+12h 39m 31s} (current),
                 195.378d {+13h 01m 31s} (1950)
GRB_DEC:         +89.170d {+89d 10' 13"} (J2000),
                 +89.048d {+89d 02' 54"} (current),
                 +89.442d {+89d 26' 31"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       4319 [cnts]    Image_Peak=300 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   137     E_range: 15-50 keV
BKG_INTEN:       24968 [cnts]
BKG_TIME:        74547.10 SOD {20:42:27.10} UT
BKG_DUR:         8 [sec]
GRB_DATE:        19672 TJD;    93 DOY;   22/04/03
GRB_TIME:        74562.65 SOD {20:42:42.65} UT
GRB_PHI:         -144.99 [deg]
GRB_THETA:        34.24 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     18.68 [sigma]
IMAGE_SIGNIF:    12.67 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +1  +2  +0  +0  -8  +0 
SUN_POSTN:        12.96d {+00h 51m 50s}   +5.55d {+05d 33' 02"}
SUN_DIST:         85.40 [deg]   Sun_angle= -11.8 [hr] (East of Sun)
MOON_POSTN:       42.26d {+02h 49m 02s}  +15.57d {+15d 34' 21"}
MOON_DIST:        75.23 [deg]
MOON_ILLUM:      7 [%]
GAL_COORDS:      122.97, 27.96 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       92.06, 66.71 [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 = 66.53,20.55 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(3.0<100sec) coincident with the FERMI_GBM event (trignum=670711364).

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 03 Apr 22 21:00:03 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1101053,   Seg_Num: 0
GRB_RA:          191.025d {+12h 44m 06s} (J2000),
                 189.879d {+12h 39m 31s} (current),
                 195.378d {+13h 01m 31s} (1950)
GRB_DEC:         +89.170d {+89d 10' 13"} (J2000),
                 +89.048d {+89d 02' 54"} (current),
                 +89.442d {+89d 26' 31"} (1950)
GRB_DATE:        19672 TJD;    93 DOY;   22/04/03
GRB_TIME:        74562.65 SOD {20:42:42.65} UT
TRIGGER_INDEX:   137
GRB_PHI:         -144.99 [deg]
GRB_THETA:        34.24 [deg]
DELTA_TIME:      45.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     18.68 [sigma]
IMAGE_SIGNIF:    12.67 [sigma]
LC_URL:          sw01101053000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 20:42:42 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 220403 ***A*** (trigger=1101053).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 191.025, +89.170 which is 
   RA(J2000) = 12h 44m 06s
   Dec(J2000) = +89d 10' 13"
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 ~2798 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: 36.8 s +/- 2.5989 s
  Estimated T50 duration: 12.672 s +/- 0.224 s
  Estimated Peak Interval: MET   670711390.62399995 +/- 0.500000 s
  Estimated background rate 1:     5431.458 near MET 670711372.800000 s
  Estimated background rate 2:     5257.307 near MET 670711518.528000 s
  Estimated total duration: 81.536 s (for data selection)
       (from MET 670711377.600000 to MET 670711459.136000)
  Estimated total fluence: 43966.085188 count
  Created GTI with 10 entries
------------------------------------------

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

    bat_grb_pos_cat.sh 191.025 89.170 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 191.025 89.170
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 4 3 21 72.200116  28.928909
 Obj: 2022 4 3 21 181.052889  38.493038
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2022 4 3 21 44.029201  56.233577
 Obj: 2022 4 3 21 180.484690  30.798027
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2022 4 3 21 33.073447  58.081780
 Obj: 2022 4 3 21 180.384816  32.426925
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2022 4 3 21 301.094786  64.462531
 Obj: 2022 4 3 21 179.678154  18.898751
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2022 4 3 21 258.521732  7.882262
 Obj: 2022 4 3 21 178.925745  -31.573370
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2022 4 3 21 263.245123  -0.051998
 Obj: 2022 4 3 21 178.846332  34.379833
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2022 4 3 21 108.139886  -19.516326
 Obj: 2022 4 3 21 180.954443  29.178047
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2022 4 3 21 109.541815  20.129942
 Obj: 2022 4 3 21 181.010185  -30.753465
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1101053/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 Apr  3 17:00:31 EDT 2022