TDRSS lightcurve for Trigger=1095288

Notes:

GCN BAT Position Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 06 Mar 22 18:15:57 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1095288,   Seg_Num: 0
GRB_RA:            5.378d {+00h 21m 31s} (J2000),
                   5.698d {+00h 22m 47s} (current),
                   4.666d {+00h 18m 40s} (1950)
GRB_DEC:         +71.354d {+71d 21' 14"} (J2000),
                 +71.477d {+71d 28' 36"} (current),
                 +71.076d {+71d 04' 35"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       1502 [cnts]    Image_Peak=179 [image_cnts]
TRIGGER_DUR:     0.512 [sec] 
TRIGGER_INDEX:   124     E_range: 25-100 keV
BKG_INTEN:       12913 [cnts]
BKG_TIME:        65723.26 SOD {18:15:23.26} UT
BKG_DUR:         8 [sec]
GRB_DATE:        19644 TJD;    65 DOY;   22/03/06
GRB_TIME:        65737.47 SOD {18:15:37.47} UT
GRB_PHI:         124.85 [deg]
GRB_THETA:        18.27 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     22.78 [sigma]
IMAGE_SIGNIF:    12.05 [sigma]
MERIT_PARAMS:     +1  +0  +0  -1  +2  +1  +0  +1 -21  +0 
SUN_POSTN:       347.26d {+23h 09m 02s}   -5.46d {-05d 27' 39"}
SUN_DIST:         77.89 [deg]   Sun_angle= -1.2 [hr] (East of Sun)
MOON_POSTN:       33.70d {+02h 14m 49s}  +11.79d {+11d 47' 07"}
MOON_DIST:        62.08 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      120.52,  8.62 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       51.79, 59.03 [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 = 274.94,14.13 [deg].

GCN BAT Lightcurve Notice

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 06 Mar 22 18:38:07 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1095288,   Seg_Num: 0
GRB_RA:            5.378d {+00h 21m 31s} (J2000),
                   5.698d {+00h 22m 47s} (current),
                   4.666d {+00h 18m 40s} (1950)
GRB_DEC:         +71.354d {+71d 21' 14"} (J2000),
                 +71.477d {+71d 28' 36"} (current),
                 +71.076d {+71d 04' 35"} (1950)
GRB_DATE:        19644 TJD;    65 DOY;   22/03/06
GRB_TIME:        65737.47 SOD {18:15:37.47} UT
TRIGGER_INDEX:   124
GRB_PHI:         124.85 [deg]
GRB_THETA:        18.27 [deg]
DELTA_TIME:      19.00 [sec]
TRIGGER_DUR:     0.512 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     22.78 [sigma]
IMAGE_SIGNIF:    12.05 [sigma]
LC_URL:          sw01095288000msb.lc

GCN template for BAT paragraph

  • Click here! 
    At 18:15:37 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 220306 ***A*** (trigger=1095288).  Swift slewed immediately to the burst.
The BAT on-board calculated location is 
RA, Dec 5.378, +71.354 which is 
   RA(J2000) = 00h 21m 31s
   Dec(J2000) = +71d 21' 14"
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 ~2656 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: 41.024 s +/- 0.758609 s
  Estimated T50 duration: 9.472 s +/- 2.43537 s
  Estimated Peak Interval: MET   668283366.65599990 +/- 0.500000 s
  Estimated background rate 1:     3226.562 near MET 668283352.320000 s
  Estimated background rate 2:     3129.969 near MET 668283482.688000 s
  Estimated total duration: 50.816 s (for data selection)
       (from MET 668283362.240000 to MET 668283413.056000)
  Estimated total fluence: 7096.677529 count
  Created GTI with 9 entries
------------------------------------------

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

    bat_grb_pos_cat.sh 5.378 71.354 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 5.378 71.354
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 3 6 18 13.797276  44.586635
 Obj: 2022 3 6 18 185.048782  57.210005
  • the object visibility at GSFC, Greenbelt, Maryland 
     
MMT Observatory, Mt. Hopkins, Arizona
      TimeUT       Azimuth     Elevation
 Sun: 2022 3 6 18 323.845116  46.254769
 Obj: 2022 3 6 18 197.457703  44.158444
  • the object visibility at MMT, Mt. Hopkins, Arizona 
     
Hale Telescope, Palomar Mountain, California
      TimeUT       Azimuth     Elevation
 Sun: 2022 3 6 18 317.856998  41.774369
 Obj: 2022 3 6 18 199.406042  44.142981
  • the object visibility at Hale Telescope, Palomar Mt., California 
     
Mauna Kea, Hawaii
      TimeUT       Azimuth     Elevation
 Sun: 2022 3 6 18 282.866002  17.835465
 Obj: 2022 3 6 18 199.690248  19.617460
  • the object visibility at Mauna Kea, Hawaii 
     
Siding Spring Obs., Australia
      TimeUT       Azimuth     Elevation
 Sun: 2022 3 6 18 294.332975  -25.442283
 Obj: 2022 3 6 18 195.835911  -45.122421
  • the object visibility at Siding Spring Obs., Australia 
     
Tokyo, Japan
      TimeUT       Azimuth     Elevation
 Sun: 2022 3 6 18 240.363419  -43.713507
 Obj: 2022 3 6 18 186.742710  16.856617
  • the object visibility at Tokyo, Japan 
     
William Herschel Telescope, La Palma, Canary Islands, Spain
      TimeUT       Azimuth     Elevation
 Sun: 2022 3 6 18 74.552578  15.599850
 Obj: 2022 3 6 18 161.558733  39.297889
  • the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain 
     
Gemini South, Cerro Pachon, Chile
      TimeUT       Azimuth     Elevation
 Sun: 2022 3 6 18 146.128289  61.041403
 Obj: 2022 3 6 18 180.883695  -11.866984
  • the object visibility at Gemini South, Cerro Pachon, Chile 
     
 
 
The data/results are in /local/data/bat1/prebascript/trigger1095288/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 Mar  6 13:38:42 EST 2022