TDRSS lightcurve for Trigger=1205400
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 30 Dec 23 18:33:39 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1205400, Seg_Num: 0
GRB_RA: 83.530d {+05h 34m 07s} (J2000),
83.891d {+05h 35m 34s} (current),
82.779d {+05h 31m 07s} (1950)
GRB_DEC: +21.821d {+21d 49' 17"} (J2000),
+21.836d {+21d 50' 10"} (current),
+21.788d {+21d 47' 18"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 0 [cnts] Image_Peak=1160 [image_cnts]
TRIGGER_DUR: 64.000 [sec]
TRIGGER_INDEX: 20000 E_range: 15-50 keV
BKG_INTEN: 0 [cnts]
BKG_TIME: 0.00 SOD {00:00:00.00} UT
BKG_DUR: 0 [sec]
GRB_DATE: 20308 TJD; 364 DOY; 23/12/30
GRB_TIME: 65911.35 SOD {18:18:31.35} UT
GRB_PHI: 112.41 [deg]
GRB_THETA: 33.13 [deg]
SOLN_STATUS: 0x513
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 7.91 [sigma]
MERIT_PARAMS: +1 +0 +0 +6 +1 -2 +0 +1 +96 +0
SUN_POSTN: 279.57d {+18h 38m 17s} -23.14d {-23d 08' 37"}
SUN_DIST: 165.46 [deg] Sun_angle= -11.0 [hr] (East of Sun)
MOON_POSTN: 145.22d {+09h 40m 53s} +18.44d {+18d 26' 10"}
MOON_DIST: 57.31 [deg]
MOON_ILLUM: 87 [%]
GAL_COORDS: 184.67, -5.97 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 83.99, -1.48 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS: SWIFT-BAT GRB Coordinates.
COMMENTS: This Notice was delayed by more than 60 sec past the end of the trigger integration interval;
COMMENTS: probably due to it occurring during a Malindi downlink session.
COMMENTS: This is an image trigger. (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)
COMMENTS: A point_source was found.
COMMENTS: This does not match any source in the on-board catalog.
COMMENTS: This matches a source in the ground catalog: Crab, delta=0.215 [deg].
COMMENTS: This is not a GRB.
COMMENTS: This trigger occurred at longitude,latitude = 76.39,13.53 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 30 Dec 23 18:34:20 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1205400, Seg_Num: 0
GRB_RA: 83.530d {+05h 34m 07s} (J2000),
83.891d {+05h 35m 34s} (current),
82.779d {+05h 31m 07s} (1950)
GRB_DEC: +21.821d {+21d 49' 17"} (J2000),
+21.836d {+21d 50' 10"} (current),
+21.788d {+21d 47' 18"} (1950)
GRB_DATE: 20308 TJD; 364 DOY; 23/12/30
GRB_TIME: 65911.35 SOD {18:18:31.35} UT
TRIGGER_INDEX: 20000
GRB_PHI: 112.41 [deg]
GRB_THETA: 33.13 [deg]
DELTA_TIME: 0.00 [sec]
TRIGGER_DUR: 64.000 [sec]
SOLN_STATUS: 0x513
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 7.91 [sigma]
LC_URL: sw01205400000msb.lc
GCN template for BAT paragraph
Click here!
At 18:18:31 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 231230 ***A*** (trigger=1205400). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 83.530, +21.821 which is
RA(J2000) = 05h 34m 07s
Dec(J2000) = +21d 49' 17"
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 ~1007 counts/sec (15-350 keV), at ~1 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
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: 24.576 s +/- 14.7683 s
Estimated T50 duration: 24.576 s +/- 18.3179 s
Estimated Peak Interval: MET 725653291.00799990 +/- 0.500000 s
Estimated background rate 1: 3590.578 near MET 725653192.192000 s
Estimated background rate 2: 3794.702 near MET 725653309.440000 s
Estimated total duration: 24.576 s (for data selection)
(from MET 725653264.384000 to MET 725653288.960000)
Estimated total fluence: -416.254429 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 83.530 21.821 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 83.530 21.821
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 12 30 18 12.364135 26.803065
Obj: 2023 12 30 18 208.110009 -23.916175
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2023 12 30 18 336.233361 31.223202
Obj: 2023 12 30 18 172.700732 -36.163318
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2023 12 30 18 330.886489 27.482945
Obj: 2023 12 30 18 166.236902 -33.602808
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2023 12 30 18 300.340182 12.098694
Obj: 2023 12 30 18 127.269280 -25.128749
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2023 12 30 18 307.105566 -12.323881
Obj: 2023 12 30 18 117.010291 1.726894
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2023 12 30 18 263.826103 -52.382013
Obj: 2023 12 30 18 91.555230 38.832695
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2023 12 30 18 60.653011 4.170939
Obj: 2023 12 30 18 249.192308 7.514902
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2023 12 30 18 109.950352 72.499236
Obj: 2023 12 30 18 277.736197 -58.836050
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1205400/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 Dec 30 13:37:02 EST 2023