TDRSS lightcurve for Trigger=1162001

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 28 Mar 23 14:55:08 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1162001,   Seg_Num: 0
GRB_RA:          290.986d {+19h 23m 57s} (J2000),
                 290.595d {+19h 22m 23s} (current),
                 291.810d {+19h 27m 14s} (1950)
GRB_DEC:         +80.016d {+80d 00' 58"} (J2000),
                 +80.062d {+80d 03' 44"} (current),
                 +79.915d {+79d 54' 53"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       3774 [cnts]    Image_Peak=489 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       11946 [cnts]
BKG_TIME:        53672.99 SOD {14:54:32.99} UT
BKG_DUR:         8 [sec]
GRB_DATE:        20031 TJD;    87 DOY;   23/03/28
GRB_TIME:        53688.54 SOD {14:54:48.54} UT
GRB_PHI:         -147.34 [deg]
GRB_THETA:        37.35 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     53.78 [sigma]
IMAGE_SIGNIF:    17.77 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  +5  +0  +0  -9  +0 
SUN_POSTN:         7.05d {+00h 28m 11s}   +3.04d {+03d 02' 38"}
SUN_DIST:         84.68 [deg]   Sun_angle= 5.1 [hr] (West of Sun)
MOON_POSTN:       92.64d {+06h 10m 33s}  +27.87d {+27d 51' 56"}
MOON_DIST:        71.62 [deg]
MOON_ILLUM:      46 [%]
GAL_COORDS:      111.99, 25.29 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       75.68, 75.46 [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 = 201.44,13.78 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(1.0<100sec) coincident with the FERMI_GBM event (trignum=701708092).

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 28 Mar 23 15:06:39 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1162001,   Seg_Num: 0
GRB_RA:          290.986d {+19h 23m 57s} (J2000),
                 290.595d {+19h 22m 23s} (current),
                 291.810d {+19h 27m 14s} (1950)
GRB_DEC:         +80.016d {+80d 00' 58"} (J2000),
                 +80.062d {+80d 03' 44"} (current),
                 +79.915d {+79d 54' 53"} (1950)
GRB_DATE:        20031 TJD;    87 DOY;   23/03/28
GRB_TIME:        53688.54 SOD {14:54:48.54} UT
TRIGGER_INDEX:   146
GRB_PHI:         -147.34 [deg]
GRB_THETA:        37.35 [deg]
DELTA_TIME:      45.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     53.78 [sigma]
IMAGE_SIGNIF:    17.77 [sigma]
LC_URL:          sw01162001000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 14:54:48 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 230328 ***A*** (trigger=1162001).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 290.986, +80.016 which is 
   RA(J2000) = 19h 23m 57s
   Dec(J2000) = +80d 00' 58"
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 ~4375 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

    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: 36.864 s +/- 101.126 s
  Estimated T50 duration: 20.48 s +/- 93.1127 s
  Estimated Peak Interval: MET   701708267.00799990 +/- 0.500000 s
  Estimated background rate 1:     2961.839 near MET 701708104.320000 s
  Estimated background rate 2:     3965.169 near MET 701708299.776000 s
  Estimated total duration: 180.992 s (for data selection)
       (from MET 701708112.640000 to MET 701708293.632000)
  Estimated total fluence: 9788.411133 count
  Created GTI with 24 entries
------------------------------------------

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

    bat_grb_pos_cat.sh 290.986 80.016 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 290.986 80.016
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: 2023 3 28 15 311.039500  42.770242
 Obj: 2023 3 28 15 170.296313  45.890910
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2023 3 28 15 279.473424  20.511761
 Obj: 2023 3 28 15 177.979676  41.464645
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2023 3 28 15 276.560476  15.282936
 Obj: 2023 3 28 15 179.332250  43.250858
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2023 3 28 15 259.081601  -19.758690
 Obj: 2023 3 28 15 186.548600  27.738095
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2023 3 28 15 335.253417  -59.496850
 Obj: 2023 3 28 15 191.610161  -31.011108
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2023 3 28 15 172.922725  -52.349088
 Obj: 2023 3 28 15 191.031035  30.822485
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2023 3 28 15 47.805372  54.745171
 Obj: 2023 3 28 15 169.139339  26.254358
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2023 3 28 15 223.375021  47.350521
 Obj: 2023 3 28 15 171.870287  -23.560907
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1162001/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:
Tue Mar 28 11:07:03 EDT 2023