TDRSS lightcurve for Trigger=1036024

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 06 Mar 21 09:32:45 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1036024,   Seg_Num: 0
GRB_RA:          331.848d {+22h 07m 23s} (J2000),
                 332.109d {+22h 08m 26s} (current),
                 331.230d {+22h 04m 55s} (1950)
GRB_DEC:         +10.175d {+10d 10' 30"} (J2000),
                 +10.279d {+10d 16' 44"} (current),
                  +9.930d {+09d 55' 49"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       6666 [cnts]    Image_Peak=185 [image_cnts]
TRIGGER_DUR:     2.048 [sec] 
TRIGGER_INDEX:   264     E_range: 25-100 keV
BKG_INTEN:       69735 [cnts]
BKG_TIME:        34301.38 SOD {09:31:41.38} UT
BKG_DUR:         24 [sec]
GRB_DATE:        19279 TJD;    65 DOY;   21/03/06
GRB_TIME:        34334.27 SOD {09:32:14.27} UT
GRB_PHI:         -72.69 [deg]
GRB_THETA:        37.79 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     10.04 [sigma]
IMAGE_SIGNIF:    8.40 [sigma]
MERIT_PARAMS:     +1  +0  +0  +1  +2  -1 -100  +0 -92  +0 
SUN_POSTN:       347.15d {+23h 08m 35s}   -5.51d {-05d 30' 28"}
SUN_DIST:         21.76 [deg]   Sun_angle= 1.0 [hr] (West of Sun)
MOON_POSTN:      259.33d {+17h 17m 18s}  -23.45d {-23d 26' 52"}
MOON_DIST:        78.69 [deg]
MOON_ILLUM:      46 [%]
GAL_COORDS:       70.45,-35.48 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      337.71, 20.29 [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 = 19.73,-8.56 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(0.0<100sec) coincident with the FERMI_GBM event (trignum=636715939).

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 06 Mar 21 09:37:40 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     86200,   Seg_Num: 2
GRB_RA:          331.848d {+22h 07m 23s} (J2000),
                 332.109d {+22h 08m 26s} (current),
                 331.230d {+22h 04m 55s} (1950)
GRB_DEC:         +10.175d {+10d 10' 30"} (J2000),
                 +10.279d {+10d 16' 44"} (current),
                  +9.930d {+09d 55' 49"} (1950)
GRB_DATE:        19279 TJD;    65 DOY;   21/03/06
GRB_TIME:        34334.27 SOD {09:32:14.27} UT
TRIGGER_INDEX:   264
GRB_PHI:         -72.69 [deg]
GRB_THETA:        37.79 [deg]
DELTA_TIME:      17156.00 [sec]
TRIGGER_DUR:     2.048 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    0.00 [sigma]
LC_URL:          sw01036024000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 09:32:14 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 210306 ***A*** (trigger=1036024).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 331.848, +10.175 which is 
   RA(J2000) = 22h 07m 23s
   Dec(J2000) = +10d 10' 30"
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 ~1390 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

    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: 3.904 s +/- 0.243705 s
  Estimated T50 duration: 1.664 s +/- 0.181019 s
  Estimated Peak Interval: MET   636715961.08800006 +/- 0.500000 s
  Estimated background rate 1:     6303.669 near MET 636715948.640000 s
  Estimated background rate 2:     6396.569 near MET 636715966.656000 s
  Estimated total duration: 4.032 s (for data selection)
       (from MET 636715959.680000 to MET 636715963.712000)
  Estimated total fluence: 1644.297527 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 331.848 10.175 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 331.848 10.175
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: 2021 3 6 9 250.610511  -30.445607
 Obj: 2021 3 6 9 249.129455  -8.738201
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2021 3 6 9 220.993182  -57.395408
 Obj: 2021 3 6 9 225.259170  -35.837277
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2021 3 6 9 209.582697  -58.954764
 Obj: 2021 3 6 9 218.384534  -37.961942
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2021 3 6 9 118.590597  -62.826363
 Obj: 2021 3 6 9 163.266984  -58.696308
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2021 3 6 9 79.645664  -6.288906
 Obj: 2021 3 6 9 85.497310  -27.318083
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2021 3 6 9 82.140625  1.652109
 Obj: 2021 3 6 9 103.644498  -1.670603
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2021 3 6 9 286.952251  17.787988
 Obj: 2021 3 6 9 280.377079  38.783242
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2021 3 6 9 290.749975  -21.855423
 Obj: 2021 3 6 9 268.105418  -17.456268
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1036024/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:
Sat Mar  6 04:38:08 EST 2021