TDRSS lightcurve for Trigger=973628
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 22 May 20 11:41:52 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 973628, Seg_Num: 0
GRB_RA: 5.667d {+00h 22m 40s} (J2000),
5.928d {+00h 23m 43s} (current),
5.026d {+00h 20m 06s} (1950)
GRB_DEC: -0.282d {-00d 16' 53"} (J2000),
-0.169d {-00d 10' 06"} (current),
-0.559d {-00d 33' 31"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 916 [cnts] Image_Peak=116 [image_cnts]
TRIGGER_DUR: 0.128 [sec]
TRIGGER_INDEX: 122 E_range: 25-100 keV
BKG_INTEN: 21448 [cnts]
BKG_TIME: 42079.01 SOD {11:41:19.01} UT
BKG_DUR: 8 [sec]
GRB_DATE: 18991 TJD; 143 DOY; 20/05/22
GRB_TIME: 42094.12 SOD {11:41:34.12} UT
GRB_PHI: 170.50 [deg]
GRB_THETA: 24.82 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 30.62 [sigma]
IMAGE_SIGNIF: 9.79 [sigma]
MERIT_PARAMS: +1 +0 +0 -3 +2 +0 +0 +0 -55 +0
SUN_POSTN: 59.74d {+03h 58m 58s} +20.53d {+20d 31' 39"}
SUN_DIST: 56.50 [deg] Sun_angle= 3.6 [hr] (West of Sun)
MOON_POSTN: 57.50d {+03h 49m 59s} +17.34d {+17d 20' 07"}
MOON_DIST: 53.67 [deg]
MOON_ILLUM: 0 [%]
GAL_COORDS: 107.32,-62.28 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 5.09, -2.51 [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 = 353.33,-8.35 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 22 May 20 11:58:43 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 973628, Seg_Num: 0
GRB_RA: 5.667d {+00h 22m 40s} (J2000),
5.928d {+00h 23m 43s} (current),
5.026d {+00h 20m 06s} (1950)
GRB_DEC: -0.282d {-00d 16' 53"} (J2000),
-0.169d {-00d 10' 06"} (current),
-0.559d {-00d 33' 31"} (1950)
GRB_DATE: 18991 TJD; 143 DOY; 20/05/22
GRB_TIME: 42094.12 SOD {11:41:34.12} UT
TRIGGER_INDEX: 122
GRB_PHI: 170.50 [deg]
GRB_THETA: 24.82 [deg]
DELTA_TIME: -70.00 [sec]
TRIGGER_DUR: 0.128 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 30.62 [sigma]
IMAGE_SIGNIF: 9.79 [sigma]
LC_URL: sw00973628000msb.lc
GCN template for BAT paragraph
Click here!
At 11:41:34 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 200522 ***A*** (trigger=973628). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 5.667, -0.282 which is
RA(J2000) = 00h 22m 40s
Dec(J2000) = -00d 16' 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 ~5347 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: 58.496 s +/- 54.688 s
Estimated Peak Interval: MET 611840519.29600000 +/- 0.500000 s
Estimated background rate 1: 5279.532 near MET 611840506.624000 s
Estimated background rate 2: 5368.028 near MET 611840667.456000 s
Estimated total duration: 111.744 s (for data selection)
(from MET 611840518.848000 to MET 611840630.592000)
Estimated total fluence: 1085.031535 count
Created GTI with 8 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 5.667 -0.282 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 5.667 -0.282
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 5 22 13 270.549590 34.541827
Obj: 2020 5 22 13 347.938500 50.175034
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2020 5 22 13 249.614617 6.115185
Obj: 2020 5 22 13 300.692995 39.311396
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2020 5 22 13 246.642442 2.052403
Obj: 2020 5 22 13 296.753963 34.085008
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2020 5 22 13 226.269342 -33.883911
Obj: 2020 5 22 13 271.426360 3.413978
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2020 5 22 13 56.246024 -72.369479
Obj: 2020 5 22 13 303.525067 -42.052843
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2020 5 22 13 145.886206 -27.113704
Obj: 2020 5 22 13 215.209270 -50.248205
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2020 5 22 13 343.615068 81.466841
Obj: 2020 5 22 13 68.768051 33.101864
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2020 5 22 13 233.615413 16.142125
Obj: 2020 5 22 13 183.552920 59.766623
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger973628/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 May 22 09:02:23 EDT 2020