TDRSS lightcurve for Trigger=1110821
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 18 Jun 22 09:10:55 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1110821, Seg_Num: 0
GRB_RA: 38.966d {+02h 35m 52s} (J2000),
39.368d {+02h 37m 28s} (current),
38.077d {+02h 32m 19s} (1950)
GRB_DEC: +55.214d {+55d 12' 49"} (J2000),
+55.310d {+55d 18' 38"} (current),
+54.996d {+54d 59' 44"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 3815 [cnts] Image_Peak=132 [image_cnts]
TRIGGER_DUR: 2.048 [sec]
TRIGGER_INDEX: 262 E_range: 25-100 keV
BKG_INTEN: 38272 [cnts]
BKG_TIME: 32994.65 SOD {09:09:54.65} UT
BKG_DUR: 24 [sec]
GRB_DATE: 19748 TJD; 169 DOY; 22/06/18
GRB_TIME: 33029.92 SOD {09:10:29.92} UT
GRB_PHI: -41.14 [deg]
GRB_THETA: 46.96 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 7.14 [sigma]
IMAGE_SIGNIF: 9.03 [sigma]
MERIT_PARAMS: +1 +0 +0 +1 +2 -1 +0 +1 -67 +0
SUN_POSTN: 86.88d {+05h 47m 31s} +23.40d {+23d 24' 17"}
SUN_DIST: 47.20 [deg] Sun_angle= 3.2 [hr] (West of Sun)
MOON_POSTN: 325.87d {+21h 43m 30s} -19.16d {-19d 09' 32"}
MOON_DIST: 96.73 [deg]
MOON_ILLUM: 79 [%]
GAL_COORDS: 137.52, -4.67 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 55.93, 37.65 [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 = 37.28,14.07 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 18 Jun 22 09:29:10 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1110821, Seg_Num: 0
GRB_RA: 38.966d {+02h 35m 52s} (J2000),
39.368d {+02h 37m 28s} (current),
38.077d {+02h 32m 19s} (1950)
GRB_DEC: +55.214d {+55d 12' 49"} (J2000),
+55.310d {+55d 18' 38"} (current),
+54.996d {+54d 59' 44"} (1950)
GRB_DATE: 19748 TJD; 169 DOY; 22/06/18
GRB_TIME: 33029.92 SOD {09:10:29.92} UT
TRIGGER_INDEX: 262
GRB_PHI: -41.14 [deg]
GRB_THETA: 46.96 [deg]
DELTA_TIME: -5.00 [sec]
TRIGGER_DUR: 2.048 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 7.14 [sigma]
IMAGE_SIGNIF: 9.03 [sigma]
LC_URL: sw01110821000msb.lc
GCN template for BAT paragraph
Click here!
At 09:10:29 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 220618 ***A*** (trigger=1110821). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 38.966, +55.214 which is
RA(J2000) = 02h 35m 52s
Dec(J2000) = +55d 12' 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 ~867 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: 85.632 s +/- 4.39741 s
Estimated T50 duration: 32.512 s +/- 3.13796 s
Estimated Peak Interval: MET 677236260.99199986 +/- 0.500000 s
Estimated background rate 1: 3048.750 near MET 677236237.600000 s
Estimated background rate 2: 3088.174 near MET 677236393.920000 s
Estimated total duration: 102.72 s (for data selection)
(from MET 677236240.000000 to MET 677236342.720000)
Estimated total fluence: 11790.309206 count
Created GTI with 5 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 38.966 55.214 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 38.966 55.214
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 6 18 9 231.227205 -7.782389
Obj: 2022 6 18 9 225.152031 39.081052
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2022 6 18 9 204.965745 -30.579359
Obj: 2022 6 18 9 213.975357 15.807166
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2022 6 18 9 198.594331 -30.905274
Obj: 2022 6 18 9 212.149322 14.449175
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2022 6 18 9 153.396679 -42.070216
Obj: 2022 6 18 9 194.895906 -11.636820
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2022 6 18 9 104.446714 -22.775473
Obj: 2022 6 18 9 148.016567 -58.398721
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2022 6 18 9 108.004768 15.541221
Obj: 2022 6 18 9 155.665004 7.858099
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2022 6 18 9 259.490851 33.203042
Obj: 2022 6 18 9 199.076627 61.000890
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2022 6 18 9 260.694510 -33.904285
Obj: 2022 6 18 9 213.259751 -13.999815
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1110821/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 Jun 18 05:30:23 EDT 2022