TDRSS lightcurve for Trigger=1001514
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 24 Oct 20 02:49:11 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1001514, Seg_Num: 0
GRB_RA: 125.948d {+08h 23m 47s} (J2000),
126.220d {+08h 24m 53s} (current),
125.293d {+08h 21m 10s} (1950)
GRB_DEC: +3.377d {+03d 22' 38"} (J2000),
+3.309d {+03d 18' 32"} (current),
+3.539d {+03d 32' 21"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 1687 [cnts] Image_Peak=105 [image_cnts]
TRIGGER_DUR: 0.512 [sec]
TRIGGER_INDEX: 69 E_range: 15-50 keV
BKG_INTEN: 19521 [cnts]
BKG_TIME: 10126.14 SOD {02:48:46.14} UT
BKG_DUR: 8 [sec]
GRB_DATE: 19146 TJD; 298 DOY; 20/10/24
GRB_TIME: 10139.13 SOD {02:48:59.13} UT
GRB_PHI: -99.77 [deg]
GRB_THETA: 35.57 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 15.62 [sigma]
IMAGE_SIGNIF: 9.01 [sigma]
MERIT_PARAMS: +1 +0 +0 -1 +1 -1 +0 +0 -10 +0
SUN_POSTN: 209.02d {+13h 56m 05s} -11.88d {-11d 52' 31"}
SUN_DIST: 83.65 [deg] Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN: 311.38d {+20h 45m 30s} -21.86d {-21d 51' 30"}
MOON_DIST: 160.79 [deg]
MOON_ILLUM: 56 [%]
GAL_COORDS: 220.75, 22.04 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 127.46,-15.51 [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 = 358.64,-16.03 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 24 Oct 20 03:06:57 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1001514, Seg_Num: 0
GRB_RA: 125.948d {+08h 23m 47s} (J2000),
126.220d {+08h 24m 53s} (current),
125.293d {+08h 21m 10s} (1950)
GRB_DEC: +3.377d {+03d 22' 38"} (J2000),
+3.309d {+03d 18' 32"} (current),
+3.539d {+03d 32' 21"} (1950)
GRB_DATE: 19146 TJD; 298 DOY; 20/10/24
GRB_TIME: 10139.13 SOD {02:48:59.13} UT
TRIGGER_INDEX: 69
GRB_PHI: -99.77 [deg]
GRB_THETA: 35.57 [deg]
DELTA_TIME: -18.00 [sec]
TRIGGER_DUR: 0.512 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 15.62 [sigma]
IMAGE_SIGNIF: 9.01 [sigma]
LC_URL: sw01001514000msb.lc
GCN template for BAT paragraph
Click here!
At 02:48:59 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 201024 ***A*** (trigger=1001514). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 125.948, +3.377 which is
RA(J2000) = 08h 23m 47s
Dec(J2000) = +03d 22' 38"
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 ~1531 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: 4.48 s +/- 0.286217 s
Estimated T50 duration: 2.176 s +/- 0.128 s
Estimated Peak Interval: MET 625200566.33599997 +/- 0.500000 s
Estimated background rate 1: 4426.387 near MET 625200552.768000 s
Estimated background rate 2: 4419.551 near MET 625200660.352000 s
Estimated total duration: 5.248 s (for data selection)
(from MET 625200564.736000 to MET 625200569.984000)
Estimated total fluence: 3695.749646 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 125.948 3.377 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 125.948 3.377
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: 2020 10 24 3 129.325201 -52.999289
Obj: 2020 10 24 3 243.156748 -24.581037
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2020 10 24 3 94.134288 -29.612980
Obj: 2020 10 24 3 212.749217 -50.019091
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2020 10 24 3 91.634344 -24.491954
Obj: 2020 10 24 3 203.182638 -50.915780
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2020 10 24 3 72.733839 11.463554
Obj: 2020 10 24 3 131.597925 -56.845179
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2020 10 24 3 136.320189 64.726530
Obj: 2020 10 24 3 87.452705 -10.582850
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2020 10 24 3 1.231158 43.677212
Obj: 2020 10 24 3 89.186419 7.013417
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2020 10 24 3 245.704385 -56.916745
Obj: 2020 10 24 3 278.687416 22.000473
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2020 10 24 3 30.582166 -42.568816
Obj: 2020 10 24 3 282.996612 -27.177572
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1001514/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:
Fri Oct 23 23:07:23 EDT 2020