TDRSS lightcurve for Trigger=1159327
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 10 Mar 23 21:00:48 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1159327, Seg_Num: 0
GRB_RA: 272.154d {+18h 08m 37s} (J2000),
272.499d {+18h 10m 00s} (current),
271.410d {+18h 05m 38s} (1950)
GRB_DEC: -20.416d {-20d 24' 56"} (J2000),
-20.411d {-20d 24' 37"} (current),
-20.425d {-20d 25' 27"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 2981 [cnts] Image_Peak=743 [image_cnts]
TRIGGER_DUR: 0.032 [sec]
TRIGGER_INDEX: 10300 E_range: 15-25 keV
BKG_INTEN: 10713 [cnts]
BKG_TIME: 75625.09 SOD {21:00:25.09} UT
BKG_DUR: 8 [sec]
GRB_DATE: 20013 TJD; 69 DOY; 23/03/10
GRB_TIME: 75635.33 SOD {21:00:35.33} UT
GRB_PHI: -153.97 [deg]
GRB_THETA: 30.54 [deg]
SOLN_STATUS: 0x10D
RATE_SIGNIF: 255.99 [sigma]
IMAGE_SIGNIF: 22.11 [sigma]
MERIT_PARAMS: +0 +0 +2 -5 +0 +7 +0 +1 -20 +0
SUN_POSTN: 350.84d {+23h 23m 20s} -3.95d {-03d 56' 56"}
SUN_DIST: 77.70 [deg] Sun_angle= 5.2 [hr] (West of Sun)
MOON_POSTN: 206.51d {+13h 46m 03s} -10.31d {-10d 18' 38"}
MOON_DIST: 64.05 [deg]
MOON_ILLUM: 89 [%]
GAL_COORDS: 9.99, -0.24 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 272.02, 3.01 [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 matches a source in the on-board catalog: Num=10201=SGR1806-20, delta=0.007 [deg].
COMMENTS: This matches a source in the ground catalog: SGR1806-20, delta=0.007 [deg].
COMMENTS: This is not a GRB.
COMMENTS: This is an interesting source.
COMMENTS: This trigger occurred at longitude,latitude = 75.57,-12.82 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 10 Mar 23 21:17:25 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1159327, Seg_Num: 0
GRB_RA: 272.154d {+18h 08m 37s} (J2000),
272.499d {+18h 10m 00s} (current),
271.410d {+18h 05m 38s} (1950)
GRB_DEC: -20.416d {-20d 24' 56"} (J2000),
-20.411d {-20d 24' 37"} (current),
-20.425d {-20d 25' 27"} (1950)
GRB_DATE: 20013 TJD; 69 DOY; 23/03/10
GRB_TIME: 75635.53 SOD {21:00:35.53} UT
TRIGGER_INDEX: 10300
GRB_PHI: -153.97 [deg]
GRB_THETA: 30.54 [deg]
DELTA_TIME: 77.00 [sec]
TRIGGER_DUR: 0.032 [sec]
SOLN_STATUS: 0x10D
RATE_SIGNIF: 255.99 [sigma]
IMAGE_SIGNIF: 22.11 [sigma]
LC_URL: sw01159327000msb.lc
GCN template for BAT paragraph
Click here!
At 21:00:35 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 230310 ***A*** (trigger=1159327). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 272.154, -20.416 which is
RA(J2000) = 18h 08m 37s
Dec(J2000) = -20d 24' 56"
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 ~175531 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: 0.512 s +/- 0.128 s
Estimated T50 duration: 0.256 s +/- 0.128 s
Estimated Peak Interval: MET 700174866.68799996 +/- 0.500000 s
Estimated background rate 1: 3827.952 near MET 700174854.784000 s
Estimated background rate 2: 3727.106 near MET 700174976.832000 s
Estimated total duration: 34.176 s (for data selection)
(from MET 700174866.368000 to MET 700174900.544000)
Estimated total fluence: 77794.895314 count
Created GTI with 7 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 272.154 -20.416 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 272.154 -20.416
SGR 1806-20 10201 272.164 -20.411 0.010624027531743676
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 10 21 63.200175 23.587301
Obj: 2023 3 10 21 101.155557 -46.073943
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2023 3 10 21 33.210539 49.093350
Obj: 2023 3 10 21 76.831045 -18.303130
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2023 3 10 21 23.843776 50.042215
Obj: 2023 3 10 21 74.435720 -13.829005
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2023 3 10 21 313.293916 56.813904
Obj: 2023 3 10 21 56.278442 22.897039
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2023 3 10 21 267.654895 11.417648
Obj: 2023 3 10 21 183.215331 79.102035
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2023 3 10 21 270.100018 -6.889299
Obj: 2023 3 10 21 340.680857 32.747852
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2023 3 10 21 98.447245 -22.968974
Obj: 2023 3 10 21 236.236904 -75.996949
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2023 3 10 21 101.986090 26.886956
Obj: 2023 3 10 21 42.803532 -25.953267
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1159327/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 10 16:17:43 EST 2023