TDRSS lightcurve for Trigger=1131397
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Thu 27 Oct 22 19:19:12 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1131397, Seg_Num: 0
GRB_RA: 225.603d {+15h 02m 25s} (J2000),
225.796d {+15h 03m 11s} (current),
225.179d {+15h 00m 43s} (1950)
GRB_DEC: +47.448d {+47d 26' 53"} (J2000),
+47.359d {+47d 21' 34"} (current),
+47.644d {+47d 38' 37"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 2553 [cnts] Image_Peak=274 [image_cnts]
TRIGGER_DUR: 1.024 [sec]
TRIGGER_INDEX: 141 E_range: 15-50 keV
BKG_INTEN: 12787 [cnts]
BKG_TIME: 69201.88 SOD {19:13:21.88} UT
BKG_DUR: 8 [sec]
GRB_DATE: 19879 TJD; 300 DOY; 22/10/27
GRB_TIME: 69218.78 SOD {19:13:38.78} UT
GRB_PHI: 177.41 [deg]
GRB_THETA: 42.66 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 22.27 [sigma]
IMAGE_SIGNIF: 14.69 [sigma]
MERIT_PARAMS: +1 +0 +0 +0 +1 +3 +0 +0 -47 +0
SUN_POSTN: 212.09d {+14h 08m 22s} -12.97d {-12d 58' 08"}
SUN_DIST: 61.56 [deg] Sun_angle= -0.9 [hr] (East of Sun)
MOON_POSTN: 242.58d {+16h 10m 19s} -22.91d {-22d 54' 52"}
MOON_DIST: 71.88 [deg]
MOON_ILLUM: 7 [%]
GAL_COORDS: 80.22, 57.37 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 197.62, 60.24 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS: SWIFT-BAT GRB Coordinates.
COMMENTS: This Notice was delayed by more than 60 sec past the end of the trigger integration interval;
COMMENTS: probably due to it occurring during a Malindi downlink session.
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 = 176.20,13.06 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Thu 27 Oct 22 19:35:33 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1131397, Seg_Num: 0
GRB_RA: 225.603d {+15h 02m 25s} (J2000),
225.796d {+15h 03m 11s} (current),
225.179d {+15h 00m 43s} (1950)
GRB_DEC: +47.448d {+47d 26' 53"} (J2000),
+47.359d {+47d 21' 34"} (current),
+47.644d {+47d 38' 37"} (1950)
GRB_DATE: 19879 TJD; 300 DOY; 22/10/27
GRB_TIME: 69218.78 SOD {19:13:38.78} UT
TRIGGER_INDEX: 141
GRB_PHI: 177.41 [deg]
GRB_THETA: 42.66 [deg]
DELTA_TIME: 71.00 [sec]
TRIGGER_DUR: 1.024 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 22.27 [sigma]
IMAGE_SIGNIF: 14.69 [sigma]
LC_URL: sw01131397000msb.lc
GCN template for BAT paragraph
Click here!
At 19:13:38 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 221027 ***A*** (trigger=1131397). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 225.603, +47.448 which is
RA(J2000) = 15h 02m 25s
Dec(J2000) = +47d 26' 53"
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 ~2000 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: 5.568 s +/- 0.34465 s
Estimated T50 duration: 3.392 s +/- 0.32 s
Estimated Peak Interval: MET 688590849.47199988 +/- 0.500000 s
Estimated background rate 1: 2876.507 near MET 688590834.560000 s
Estimated background rate 2: 2999.788 near MET 688590988.416000 s
Estimated total duration: 97.792 s (for data selection)
(from MET 688590843.520000 to MET 688590941.312000)
Estimated total fluence: 2267.902776 count
Created GTI with 7 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 225.603 47.448 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 225.603 47.448
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: 2022 10 27 19 36.293794 30.186753
Obj: 2022 10 27 19 128.507122 74.520917
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2022 10 27 19 356.759058 45.259567
Obj: 2022 10 27 19 213.407565 70.096197
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2022 10 27 19 348.879830 42.972795
Obj: 2022 10 27 19 223.351085 68.254947
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2022 10 27 19 301.547192 33.329459
Obj: 2022 10 27 19 225.544232 34.167721
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2022 10 27 19 287.517216 -3.596868
Obj: 2022 10 27 19 232.081892 -39.576689
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2022 10 27 19 264.519323 -31.142800
Obj: 2022 10 27 19 209.867382 2.052521
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2022 10 27 19 78.887440 -6.803180
Obj: 2022 10 27 19 130.885045 29.177014
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2022 10 27 19 108.296291 51.245522
Obj: 2022 10 27 19 163.884285 9.356644
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1131397/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 Oct 27 15:36:02 EDT 2022