TDRSS lightcurve for Trigger=1248132
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sun 11 Aug 24 14:07:46 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1248132, Seg_Num: 0
GRB_RA: 226.373d {+15h 05m 30s} (J2000),
226.634d {+15h 06m 32s} (current),
225.844d {+15h 03m 23s} (1950)
GRB_DEC: +28.854d {+28d 51' 15"} (J2000),
+28.760d {+28d 45' 36"} (current),
+29.047d {+29d 02' 50"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 2706 [cnts] Image_Peak=141 [image_cnts]
TRIGGER_DUR: 1.024 [sec]
TRIGGER_INDEX: 146 E_range: 25-100 keV
BKG_INTEN: 17591 [cnts]
BKG_TIME: 50838.02 SOD {14:07:18.02} UT
BKG_DUR: 8 [sec]
GRB_DATE: 20533 TJD; 224 DOY; 24/08/11
GRB_TIME: 50853.19 SOD {14:07:33.19} UT
GRB_PHI: -23.30 [deg]
GRB_THETA: 32.95 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 8.88 [sigma]
IMAGE_SIGNIF: 7.37 [sigma]
MERIT_PARAMS: +1 +0 +0 +0 +2 -3 +0 +0 -20 +0
SUN_POSTN: 141.81d {+09h 27m 15s} +15.00d {+15d 00' 08"}
SUN_DIST: 78.41 [deg] Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN: 214.43d {+14h 17m 44s} -16.58d {-16d 34' 38"}
MOON_DIST: 46.85 [deg]
MOON_ILLUM: 40 [%]
GAL_COORDS: 44.22, 60.45 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 212.82, 44.02 [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 = 61.62,20.61 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sun 11 Aug 24 14:11:35 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1248132, Seg_Num: 0
GRB_RA: 226.373d {+15h 05m 30s} (J2000),
226.634d {+15h 06m 32s} (current),
225.844d {+15h 03m 23s} (1950)
GRB_DEC: +28.854d {+28d 51' 15"} (J2000),
+28.760d {+28d 45' 36"} (current),
+29.047d {+29d 02' 50"} (1950)
GRB_DATE: 20533 TJD; 224 DOY; 24/08/11
GRB_TIME: 50853.19 SOD {14:07:33.19} UT
TRIGGER_INDEX: 146
GRB_PHI: -23.30 [deg]
GRB_THETA: 32.95 [deg]
DELTA_TIME: -76.00 [sec]
TRIGGER_DUR: 1.024 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 8.88 [sigma]
IMAGE_SIGNIF: 7.37 [sigma]
LC_URL: sw01248132000msb.lc
GCN template for BAT paragraph
Click here!
At 14:07:33 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 240811 ***A*** (trigger=1248132). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 226.373, +28.854 which is
RA(J2000) = 15h 05m 30s
Dec(J2000) = +28d 51' 15"
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 ~3847 counts/sec (15-350 keV), at ~11 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: 26.752 s +/- 0.729712 s
Estimated T50 duration: 9.856 s +/- 0.256 s
Estimated Peak Interval: MET 745078093.31200004 +/- 0.500000 s
Estimated background rate 1: 4749.399 near MET 745078074.880000 s
Estimated background rate 2: 3991.841 near MET 745078208.832000 s
Estimated total duration: 57.984 s (for data selection)
(from MET 745078087.360000 to MET 745078145.344000)
Estimated total fluence: 26819.743685 count
Created GTI with 18 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 226.373 28.854 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 226.373 28.854
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 8 11 14 285.436778 41.175368
Obj: 2024 8 11 14 220.167144 -9.590536
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 8 11 14 260.776088 13.908051
Obj: 2024 8 11 14 192.472412 -28.424908
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 8 11 14 258.084123 9.252900
Obj: 2024 8 11 14 186.461308 -27.611743
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 8 11 14 240.109155 -27.552691
Obj: 2024 8 11 14 146.556305 -32.412831
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 8 11 14 9.285737 -73.543690
Obj: 2024 8 11 14 114.089041 -16.420876
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 8 11 14 156.307519 -37.308224
Obj: 2024 8 11 14 107.981424 26.625646
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 8 11 14 36.989514 73.249519
Obj: 2024 8 11 14 249.906649 25.882721
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 8 11 14 228.430203 28.733674
Obj: 2024 8 11 14 258.194247 -44.813313
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1248132/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 Aug 11 10:12:02 EDT 2024