TDRSS lightcurve for Trigger=1090656
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Thu 23 Dec 21 14:29:41 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1090656, Seg_Num: 0
GRB_RA: 227.164d {+15h 08m 39s} (J2000),
227.491d {+15h 09m 58s} (current),
226.421d {+15h 05m 41s} (1950)
GRB_DEC: -26.873d {-26d 52' 20"} (J2000),
-26.956d {-26d 57' 19"} (current),
-26.682d {-26d 40' 54"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 3527 [cnts] Image_Peak=225 [image_cnts]
TRIGGER_DUR: 1.024 [sec]
TRIGGER_INDEX: 148 E_range: 25-100 keV
BKG_INTEN: 16800 [cnts]
BKG_TIME: 52147.69 SOD {14:29:07.69} UT
BKG_DUR: 8 [sec]
GRB_DATE: 19571 TJD; 357 DOY; 21/12/23
GRB_TIME: 52166.70 SOD {14:29:26.70} UT
GRB_PHI: -82.36 [deg]
GRB_THETA: 33.29 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 30.44 [sigma]
IMAGE_SIGNIF: 12.22 [sigma]
MERIT_PARAMS: +1 +0 +0 +0 +2 +2 -100 +0 -75 +0
SUN_POSTN: 272.16d {+18h 08m 39s} -23.42d {-23d 25' 14"}
SUN_DIST: 40.37 [deg] Sun_angle= 3.0 [hr] (West of Sun)
MOON_POSTN: 144.87d {+09h 39m 28s} +19.46d {+19d 27' 41"}
MOON_DIST: 92.47 [deg]
MOON_ILLUM: 83 [%]
GAL_COORDS: 337.18, 26.72 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 232.13, -8.89 [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 = 211.13,17.63 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Thu 23 Dec 21 14:47:01 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1090656, Seg_Num: 0
GRB_RA: 227.164d {+15h 08m 39s} (J2000),
227.491d {+15h 09m 58s} (current),
226.421d {+15h 05m 41s} (1950)
GRB_DEC: -26.873d {-26d 52' 20"} (J2000),
-26.956d {-26d 57' 19"} (current),
-26.682d {-26d 40' 54"} (1950)
GRB_DATE: 19571 TJD; 357 DOY; 21/12/23
GRB_TIME: 52166.70 SOD {14:29:26.70} UT
TRIGGER_INDEX: 148
GRB_PHI: -82.36 [deg]
GRB_THETA: 33.29 [deg]
DELTA_TIME: 19.00 [sec]
TRIGGER_DUR: 1.024 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 30.44 [sigma]
IMAGE_SIGNIF: 12.22 [sigma]
LC_URL: sw01090656000msb.lc
GCN template for BAT paragraph
Click here!
At 14:29:26 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 211223 ***A*** (trigger=1090656). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 227.164, -26.873 which is
RA(J2000) = 15h 08m 39s
Dec(J2000) = -26d 52' 20"
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 ~2687 counts/sec (15-350 keV), at ~1 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: 12.736 s +/- 0.289772 s
Estimated T50 duration: 4.992 s +/- 0.181019 s
Estimated Peak Interval: MET 661962595.96799994 +/- 0.500000 s
Estimated background rate 1: 4130.482 near MET 661962580.320000 s
Estimated background rate 2: 4149.252 near MET 661962692.672000 s
Estimated total duration: 14.784 s (for data selection)
(from MET 661962589.440000 to MET 661962604.224000)
Estimated total fluence: 14815.735154 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 227.164 -26.873 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 227.164 -26.873
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: 2021 12 23 14 316.183445 13.516320
Obj: 2021 12 23 14 357.527974 23.964959
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2021 12 23 14 294.448085 -5.156088
Obj: 2021 12 23 14 325.146328 21.764552
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2021 12 23 14 291.287235 -10.450948
Obj: 2021 12 23 14 320.847869 17.396507
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2021 12 23 14 284.466354 -39.777796
Obj: 2021 12 23 14 298.245803 -1.431319
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2021 12 23 14 1.389250 -35.299708
Obj: 2021 12 23 14 319.748524 -18.570685
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2021 12 23 14 120.450636 -70.967473
Obj: 2021 12 23 14 259.357843 -65.877848
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2021 12 23 14 13.530318 36.561111
Obj: 2021 12 23 14 49.513540 12.300164
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2021 12 23 14 269.523892 52.717925
Obj: 2021 12 23 14 138.027760 85.508394
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1090656/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 Dec 23 09:48:04 EST 2021