TDRSS lightcurve for Trigger=999571
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 10 Oct 20 14:49:38 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 999571, Seg_Num: 0
GRB_RA: 277.675d {+18h 30m 42s} (J2000),
277.955d {+18h 31m 49s} (current),
277.002d {+18h 28m 00s} (1950)
GRB_DEC: -6.758d {-06d 45' 30"} (J2000),
-6.743d {-06d 44' 33"} (current),
-6.794d {-06d 47' 38"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 134 [cnts] Image_Peak=29 [image_cnts]
TRIGGER_DUR: 0.008 [sec]
TRIGGER_INDEX: 10109 E_range: 15-50 keV
BKG_INTEN: 21450 [cnts]
BKG_TIME: 53350.21 SOD {14:49:10.21} UT
BKG_DUR: 8 [sec]
GRB_DATE: 19132 TJD; 284 DOY; 20/10/10
GRB_TIME: 53363.97 SOD {14:49:23.97} UT
GRB_PHI: -141.40 [deg]
GRB_THETA: 20.86 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 23.25 [sigma]
IMAGE_SIGNIF: 7.03 [sigma]
MERIT_PARAMS: +1 +0 +0 -7 +1 -3 +0 +1 -16 +0
SUN_POSTN: 196.38d {+13h 05m 31s} -6.97d {-06d 58' 06"}
SUN_DIST: 80.87 [deg] Sun_angle= -5.4 [hr] (East of Sun)
MOON_POSTN: 117.16d {+07h 48m 39s} +23.99d {+23d 59' 25"}
MOON_DIST: 154.76 [deg]
MOON_ILLUM: 44 [%]
GAL_COORDS: 24.55, 1.50 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 277.95, 16.47 [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 = 69.75,4.87 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 10 Oct 20 15:08:39 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 999571, Seg_Num: 0
GRB_RA: 277.675d {+18h 30m 42s} (J2000),
277.955d {+18h 31m 49s} (current),
277.002d {+18h 28m 00s} (1950)
GRB_DEC: -6.758d {-06d 45' 30"} (J2000),
-6.743d {-06d 44' 33"} (current),
-6.794d {-06d 47' 38"} (1950)
GRB_DATE: 19132 TJD; 284 DOY; 20/10/10
GRB_TIME: 53364.13 SOD {14:49:24.13} UT
TRIGGER_INDEX: 10109
GRB_PHI: -141.40 [deg]
GRB_THETA: 20.86 [deg]
DELTA_TIME: 49.00 [sec]
TRIGGER_DUR: 0.008 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 23.25 [sigma]
IMAGE_SIGNIF: 7.03 [sigma]
LC_URL: sw00999571000msb.lc
GCN template for BAT paragraph
Click here!
At 14:49:24 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 201010 ***A*** (trigger=999571). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 277.675, -6.758 which is
RA(J2000) = 18h 30m 42s
Dec(J2000) = -06d 45' 30"
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 ~1945 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: 33.792 s +/- 12.1611 s
Estimated T50 duration: 33.792 s +/- 20.5117 s
Estimated Peak Interval: MET 624034190.20799994 +/- 0.500000 s
Estimated background rate 1: 5432.957 near MET 624034178.176000 s
Estimated background rate 2: 5579.383 near MET 624034300.032000 s
Estimated total duration: 33.792 s (for data selection)
(from MET 624034189.952000 to MET 624034223.744000)
Estimated total fluence: -1367.772040 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 277.675 -6.758 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 277.675 -6.758
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 10 15 322.997353 36.670657
Obj: 2020 10 10 15 262.082440 -20.284102
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2020 10 10 15 290.976788 18.537701
Obj: 2020 10 10 15 240.458059 -48.698152
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2020 10 10 15 287.728981 13.225308
Obj: 2020 10 10 15 232.193070 -51.976222
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2020 10 10 15 270.728002 -18.978687
Obj: 2020 10 10 15 144.334755 -74.140085
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2020 10 10 15 334.256877 -48.502740
Obj: 2020 10 10 15 70.345097 -17.591379
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2020 10 10 15 180.528914 -62.589306
Obj: 2020 10 10 15 89.287604 -10.986493
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2020 10 10 15 43.568358 44.069864
Obj: 2020 10 10 15 297.142276 28.892937
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2020 10 10 15 227.670082 58.065300
Obj: 2020 10 10 15 283.416503 -9.184923
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger999571/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 Oct 10 11:09:03 EDT 2020