TDRSS lightcurve for Trigger=1035922

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 05 Mar 21 19:03:18 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1035922,   Seg_Num: 0
GRB_RA:          319.814d {+21h 19m 15s} (J2000),
                 320.033d {+21h 20m 08s} (current),
                 319.297d {+21h 17m 11s} (1950)
GRB_DEC:         +34.557d {+34d 33' 24"} (J2000),
                 +34.647d {+34d 38' 49"} (current),
                 +34.345d {+34d 20' 41"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       4041 [cnts]    Image_Peak=382 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       18822 [cnts]
BKG_TIME:        68565.38 SOD {19:02:45.38} UT
BKG_DUR:         8 [sec]
GRB_DATE:        19278 TJD;    64 DOY;   21/03/05
GRB_TIME:        68584.45 SOD {19:03:04.45} UT
GRB_PHI:         -128.02 [deg]
GRB_THETA:        25.07 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     31.20 [sigma]
IMAGE_SIGNIF:    14.41 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  +3  +0  +0 -67  +0 
SUN_POSTN:       346.59d {+23h 06m 20s}   -5.74d {-05d 44' 31"}
SUN_DIST:         47.52 [deg]   Sun_angle= 1.8 [hr] (West of Sun)
MOON_POSTN:      250.33d {+16h 41m 19s}  -21.81d {-21d 48' 38"}
MOON_DIST:        86.92 [deg]
MOON_ILLUM:      53 [%]
GAL_COORDS:       80.92,-10.49 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      337.40, 47.04 [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 = 203.80,-18.27 [deg].

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 05 Mar 21 19:23:38 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1035922,   Seg_Num: 0
GRB_RA:          319.814d {+21h 19m 15s} (J2000),
                 320.033d {+21h 20m 08s} (current),
                 319.297d {+21h 17m 11s} (1950)
GRB_DEC:         +34.557d {+34d 33' 24"} (J2000),
                 +34.647d {+34d 38' 49"} (current),
                 +34.345d {+34d 20' 41"} (1950)
GRB_DATE:        19278 TJD;    64 DOY;   21/03/05
GRB_TIME:        68584.45 SOD {19:03:04.45} UT
TRIGGER_INDEX:   146
GRB_PHI:         -128.02 [deg]
GRB_THETA:        25.07 [deg]
DELTA_TIME:      12.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     31.20 [sigma]
IMAGE_SIGNIF:    14.41 [sigma]
LC_URL:          sw01035922000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 19:03:04 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 210305 ***A*** (trigger=1035922).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 319.814, +34.557 which is 
   RA(J2000) = 21h 19m 15s
   Dec(J2000) = +34d 33' 24"
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 ~3236 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: 66.048 s +/- 3.10944 s
  Estimated T50 duration: 29.184 s +/- 1.03197 s
  Estimated Peak Interval: MET   636663855.80799997 +/- 0.500000 s
  Estimated background rate 1:     4135.313 near MET 636663788.800000 s
  Estimated background rate 2:     3967.415 near MET 636663966.400000 s
  Estimated total duration: 145.28 s (for data selection)
       (from MET 636663790.400000 to MET 636663935.680000)
  Estimated total fluence: 70436.569740 count
  Created GTI with 15 entries
------------------------------------------

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

    bat_grb_pos_cat.sh 319.814 34.557 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 319.814 34.557
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 5 19 32.829828  39.693417
 Obj: 2021 3 5 19 100.437500  49.195866
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2021 3 5 19 345.140860  51.528638
 Obj: 2021 3 5 19 106.214379  75.200546
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2021 3 5 19 336.887596  48.306837
 Obj: 2021 3 5 19 100.985441  80.499507
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2021 3 5 19 290.077804  31.217354
 Obj: 2021 3 5 19 232.730116  61.733536
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2021 3 5 19 285.249319  -13.255192
 Obj: 2021 3 5 19 236.504433  -11.928973
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2021 3 5 19 252.963876  -32.563571
 Obj: 2021 3 5 19 236.151083  12.154842
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2021 3 5 19 81.966882  2.623820
 Obj: 2021 3 5 19 129.502526  1.272121
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2021 3 5 19 124.265953  52.079062
 Obj: 2021 3 5 19 135.967425  5.536641
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1035922/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:
Fri Mar  5 14:24:23 EST 2021