TDRSS lightcurve for Trigger=1262764
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 26 Oct 24 22:42:48 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1262764, Seg_Num: 0
GRB_RA: 293.423d {+19h 33m 42s} (J2000),
293.539d {+19h 34m 09s} (current),
293.191d {+19h 32m 46s} (1950)
GRB_DEC: +57.980d {+57d 58' 49"} (J2000),
+58.035d {+58d 02' 07"} (current),
+57.870d {+57d 52' 13"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 3871 [cnts] Image_Peak=113 [image_cnts]
TRIGGER_DUR: 1.024 [sec]
TRIGGER_INDEX: 155 E_range: 50-350 keV
BKG_INTEN: 16564 [cnts]
BKG_TIME: 81733.57 SOD {22:42:13.57} UT
BKG_DUR: 8 [sec]
GRB_DATE: 20609 TJD; 300 DOY; 24/10/26
GRB_TIME: 81752.00 SOD {22:42:32.00} UT
GRB_PHI: 43.91 [deg]
GRB_THETA: 41.17 [deg]
SOLN_STATUS: 0x20000083
RATE_SIGNIF: 35.86 [sigma]
IMAGE_SIGNIF: 6.81 [sigma]
MERIT_PARAMS: +1 +0 +0 +0 +3 -3 +0 +0 +11 +0
SUN_POSTN: 211.76d {+14h 07m 03s} -12.85d {-12d 51' 11"}
SUN_DIST: 96.60 [deg] Sun_angle= -5.5 [hr] (East of Sun)
MOON_POSTN: 156.57d {+10h 26m 16s} +12.92d {+12d 55' 06"}
MOON_DIST: 100.81 [deg]
MOON_ILLUM: 26 [%]
GAL_COORDS: 89.81, 17.46 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 332.63, 76.27 [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: Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.
COMMENTS: This trigger occurred at longitude,latitude = 255.10,-14.17 [deg].
COMMENTS:
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 26 Oct 24 23:04:00 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1262764, Seg_Num: 0
GRB_RA: 293.423d {+19h 33m 42s} (J2000),
293.539d {+19h 34m 09s} (current),
293.191d {+19h 32m 46s} (1950)
GRB_DEC: +57.980d {+57d 58' 49"} (J2000),
+58.035d {+58d 02' 07"} (current),
+57.870d {+57d 52' 13"} (1950)
GRB_DATE: 20609 TJD; 300 DOY; 24/10/26
GRB_TIME: 81752.00 SOD {22:42:32.00} UT
TRIGGER_INDEX: 155
GRB_PHI: 43.91 [deg]
GRB_THETA: 41.17 [deg]
DELTA_TIME: 77.00 [sec]
TRIGGER_DUR: 1.024 [sec]
SOLN_STATUS: 0x83
RATE_SIGNIF: 35.86 [sigma]
IMAGE_SIGNIF: 6.81 [sigma]
LC_URL: sw01262764000msb.lc
GCN template for BAT paragraph
Click here!
At 22:42:32 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 241026 ***A*** (trigger=1262764). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 293.423, +57.980 which is
RA(J2000) = 19h 33m 42s
Dec(J2000) = +57d 58' 49"
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 ~3639 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: 6.848 s +/- 0.256 s
Estimated T50 duration: 3.2 s +/- 0.128 s
Estimated Peak Interval: MET 751675386.94400001 +/- 0.500000 s
Estimated background rate 1: 5099.770 near MET 751675374.080000 s
Estimated background rate 2: 5431.396 near MET 751675546.496000 s
Estimated total duration: 134.912 s (for data selection)
(from MET 751675384.960000 to MET 751675519.872000)
Estimated total fluence: 10468.943874 count
Created GTI with 12 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 293.423 57.980 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 293.423 57.980
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 10 26 23 80.944299 -9.358889
Obj: 2024 10 26 23 164.639753 69.908921
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 10 26 23 60.634104 19.045938
Obj: 2024 10 26 23 204.795745 58.941842
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 10 26 23 55.868677 22.462223
Obj: 2024 10 26 23 210.159546 58.087919
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 10 26 23 22.522834 54.838978
Obj: 2024 10 26 23 213.943887 27.925945
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 10 26 23 254.393194 46.936701
Obj: 2024 10 26 23 217.512951 -44.021582
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 10 26 23 299.210946 16.722908
Obj: 2024 10 26 23 199.764036 8.067430
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 10 26 23 114.085731 -58.462263
Obj: 2024 10 26 23 142.859258 35.086988
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 10 26 23 75.113937 0.069117
Obj: 2024 10 26 23 171.716315 0.604010
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1262764/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 Oct 26 19:04:42 EDT 2024