TDRSS lightcurve for Trigger=1230423
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Thu 23 May 24 14:43:50 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1230423, Seg_Num: 0
GRB_RA: 33.567d {+02h 14m 16s} (J2000),
33.849d {+02h 15m 24s} (current),
32.989d {+02h 11m 57s} (1950)
GRB_DEC: -22.020d {-22d 01' 12"} (J2000),
-21.907d {-21d 54' 26"} (current),
-22.253d {-22d 15' 10"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 10596 [cnts] Image_Peak=281 [image_cnts]
TRIGGER_DUR: 4.096 [sec]
TRIGGER_INDEX: 292 E_range: 15-50 keV
BKG_INTEN: 92122 [cnts]
BKG_TIME: 52934.50 SOD {14:42:14.50} UT
BKG_DUR: 40 [sec]
GRB_DATE: 20453 TJD; 144 DOY; 24/05/23
GRB_TIME: 52991.90 SOD {14:43:11.90} UT
GRB_PHI: -5.33 [deg]
GRB_THETA: 42.59 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 8.54 [sigma]
IMAGE_SIGNIF: 8.50 [sigma]
MERIT_PARAMS: +1 +0 +0 +2 +1 -1 +0 +0 -63 +0
SUN_POSTN: 60.91d {+04h 03m 39s} +20.75d {+20d 44' 47"}
SUN_DIST: 50.17 [deg] Sun_angle= 1.8 [hr] (West of Sun)
MOON_POSTN: 240.66d {+16h 02m 38s} -24.57d {-24d 33' 58"}
MOON_DIST: 126.73 [deg]
MOON_ILLUM: 100 [%]
GAL_COORDS: 202.27,-70.51 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 22.57,-33.22 [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 = 279.27,8.90 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Thu 23 May 24 15:04:46 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1230423, Seg_Num: 0
GRB_RA: 33.567d {+02h 14m 16s} (J2000),
33.849d {+02h 15m 24s} (current),
32.989d {+02h 11m 57s} (1950)
GRB_DEC: -22.020d {-22d 01' 12"} (J2000),
-21.907d {-21d 54' 26"} (current),
-22.253d {-22d 15' 10"} (1950)
GRB_DATE: 20453 TJD; 144 DOY; 24/05/23
GRB_TIME: 52991.90 SOD {14:43:11.90} UT
TRIGGER_INDEX: 292
GRB_PHI: -5.33 [deg]
GRB_THETA: 42.59 [deg]
DELTA_TIME: 19.00 [sec]
TRIGGER_DUR: 4.096 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 8.54 [sigma]
IMAGE_SIGNIF: 8.50 [sigma]
LC_URL: sw01230423000msb.lc
GCN template for BAT paragraph
Click here!
At 14:43:11 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 240523 ***A*** (trigger=1230423). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 33.567, -22.020 which is
RA(J2000) = 02h 14m 16s
Dec(J2000) = -22d 01' 12"
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 ~1081 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
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: 35.2 s +/- 3.08862 s
Estimated T50 duration: 19.84 s +/- 1.05551 s
Estimated Peak Interval: MET 738168224.22399998 +/- 0.500000 s
Estimated background rate 1: 4045.766 near MET 738168211.520000 s
Estimated background rate 2: 3990.520 near MET 738168336.256000 s
Estimated total duration: 39.552 s (for data selection)
(from MET 738168221.440000 to MET 738168260.992000)
Estimated total fluence: 5498.869407 count
Created GTI with 4 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 33.567 -22.020 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 33.567 -22.020
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: 2024 5 23 15 294.759052 57.340456
Obj: 2024 5 23 15 355.218370 28.911494
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 5 23 15 263.395089 30.969713
Obj: 2024 5 23 15 320.421433 24.915284
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 5 23 15 261.440302 26.186369
Obj: 2024 5 23 15 316.093602 20.312059
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 5 23 15 243.229431 -10.581627
Obj: 2024 5 23 15 292.887134 -1.276749
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 5 23 15 305.835944 -73.383488
Obj: 2024 5 23 15 317.918967 -23.650110
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 5 23 15 177.434399 -34.826258
Obj: 2024 5 23 15 246.676873 -64.917059
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 5 23 15 78.376640 63.909632
Obj: 2024 5 23 15 52.176241 17.001380
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 5 23 15 208.988969 33.218344
Obj: 2024 5 23 15 171.260227 81.473722
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1230423/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:
Thu May 23 11:05:03 EDT 2024