TDRSS lightcurve for Trigger=1258721
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sun 06 Oct 24 21:53:14 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1258721, Seg_Num: 0
GRB_RA: 304.794d {+20h 19m 11s} (J2000),
305.209d {+20h 20m 50s} (current),
303.955d {+20h 15m 49s} (1950)
GRB_DEC: -40.796d {-40d 47' 44"} (J2000),
-40.717d {-40d 43' 00"} (current),
-40.953d {-40d 57' 10"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 47844 [cnts] Image_Peak=971 [image_cnts]
TRIGGER_DUR: 16.384 [sec]
TRIGGER_INDEX: 479 E_range: 25-100 keV
BKG_INTEN: 174753 [cnts]
BKG_TIME: 78621.69 SOD {21:50:21.69} UT
BKG_DUR: 64 [sec]
GRB_DATE: 20589 TJD; 280 DOY; 24/10/06
GRB_TIME: 78718.27 SOD {21:51:58.27} UT
GRB_PHI: 49.54 [deg]
GRB_THETA: 24.56 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 13.41 [sigma]
IMAGE_SIGNIF: 11.04 [sigma]
MERIT_PARAMS: +1 +0 +0 +4 +2 +0 +0 +0 +21 +0
SUN_POSTN: 193.01d {+12h 52m 02s} -5.57d {-05d 34' 20"}
SUN_DIST: 102.81 [deg] Sun_angle= -7.5 [hr] (East of Sun)
MOON_POSTN: 236.09d {+15h 44m 22s} -24.13d {-24d 07' 43"}
MOON_DIST: 59.12 [deg]
MOON_ILLUM: 15 [%]
GAL_COORDS: 0.13,-33.34 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 297.49,-20.62 [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 = 12.78,-20.30 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sun 06 Oct 24 22:08:36 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1258721, Seg_Num: 0
GRB_RA: 304.794d {+20h 19m 11s} (J2000),
305.209d {+20h 20m 50s} (current),
303.955d {+20h 15m 49s} (1950)
GRB_DEC: -40.796d {-40d 47' 44"} (J2000),
-40.717d {-40d 43' 00"} (current),
-40.953d {-40d 57' 10"} (1950)
GRB_DATE: 20589 TJD; 280 DOY; 24/10/06
GRB_TIME: 78718.27 SOD {21:51:58.27} UT
TRIGGER_INDEX: 479
GRB_PHI: 49.54 [deg]
GRB_THETA: 24.56 [deg]
DELTA_TIME: -56.00 [sec]
TRIGGER_DUR: 16.384 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 13.41 [sigma]
IMAGE_SIGNIF: 11.04 [sigma]
LC_URL: sw01258721000msb.lc
GCN template for BAT paragraph
Click here!
At 21:51:58 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 241006 ***A*** (trigger=1258721). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 304.794, -40.796 which is
RA(J2000) = 20h 19m 11s
Dec(J2000) = -40d 47' 44"
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 ~1500 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
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: 101.504 s +/- 2.89772 s
Estimated T50 duration: 57.6 s +/- 2.90196 s
Estimated Peak Interval: MET 749944417.08799994 +/- 0.500000 s
Estimated background rate 1: 5353.795 near MET 749944336.960000 s
Estimated background rate 2: 4837.321 near MET 749944513.344000 s
Estimated total duration: 142.848 s (for data selection)
(from MET 749944345.920000 to MET 749944488.768000)
Estimated total fluence: 27745.998756 count
Created GTI with 6 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 304.794 -40.796 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 304.794 -40.796
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 6 22 76.545289 7.454815
Obj: 2024 10 6 22 333.122333 3.559607
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 10 6 22 54.418999 35.537454
Obj: 2024 10 6 22 313.903005 -7.373349
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 10 6 22 47.833217 38.423776
Obj: 2024 10 6 22 311.059051 -12.218407
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 10 6 22 353.248041 64.407406
Obj: 2024 10 6 22 306.318227 -31.630652
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 10 6 22 257.505839 29.722756
Obj: 2024 10 6 22 352.530118 -17.506584
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 10 6 22 283.211663 9.026479
Obj: 2024 10 6 22 39.965966 -81.500453
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 10 6 22 109.542663 -41.333486
Obj: 2024 10 6 22 17.677257 17.438923
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 10 6 22 89.410484 10.053192
Obj: 2024 10 6 22 301.169343 63.152318
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1258721/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 Oct 6 18:09:02 EDT 2024