TDRSS lightcurve for Trigger=1191903
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Wed 13 Sep 23 16:45:30 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1191903, Seg_Num: 0
GRB_RA: 299.695d {+19h 58m 47s} (J2000),
299.917d {+19h 59m 40s} (current),
299.226d {+19h 56m 54s} (1950)
GRB_DEC: +35.434d {+35d 26' 01"} (J2000),
+35.499d {+35d 29' 57"} (current),
+35.297d {+35d 17' 48"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 0 [cnts] Image_Peak=3409 [image_cnts]
TRIGGER_DUR: 64.000 [sec]
TRIGGER_INDEX: 20000 E_range: 15-50 keV
BKG_INTEN: 0 [cnts]
BKG_TIME: 0.00 SOD {00:00:00.00} UT
BKG_DUR: 0 [sec]
GRB_DATE: 20200 TJD; 256 DOY; 23/09/13
GRB_TIME: 60255.99 SOD {16:44:15.99} UT
GRB_PHI: -158.75 [deg]
GRB_THETA: 5.85 [deg]
SOLN_STATUS: 0x513
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 16.14 [sigma]
MERIT_PARAMS: +1 +0 +0 +6 +1 +4 +0 +1 +46 +0
SUN_POSTN: 171.40d {+11h 25m 37s} +3.71d {+03d 42' 26"}
SUN_DIST: 117.93 [deg] Sun_angle= -8.6 [hr] (East of Sun)
MOON_POSTN: 159.05d {+10h 36m 12s} +13.09d {+13d 05' 36"}
MOON_DIST: 118.92 [deg]
MOON_ILLUM: 2 [%]
GAL_COORDS: 71.58, 3.12 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 313.95, 54.44 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS: SWIFT-BAT GRB Coordinates.
COMMENTS: This is an image trigger. (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)
COMMENTS: A point_source was found.
COMMENTS: This does not match any source in the on-board catalog.
COMMENTS: This matches a source in the ground catalog: Cyg X-1, delta=0.247 [deg].
COMMENTS: This is not a GRB.
COMMENTS: This trigger occurred at longitude,latitude = 131.57,6.81 [deg].
COMMENTS:
COMMENTS: This trigger occured while the StarTracker had lost lock, so it is possibly bogus.
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Wed 13 Sep 23 16:55:40 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1191903, Seg_Num: 0
GRB_RA: 299.695d {+19h 58m 47s} (J2000),
299.917d {+19h 59m 40s} (current),
299.226d {+19h 56m 54s} (1950)
GRB_DEC: +35.434d {+35d 26' 01"} (J2000),
+35.499d {+35d 29' 57"} (current),
+35.297d {+35d 17' 48"} (1950)
GRB_DATE: 20200 TJD; 256 DOY; 23/09/13
GRB_TIME: 60255.99 SOD {16:44:15.99} UT
TRIGGER_INDEX: 20000
GRB_PHI: -158.75 [deg]
GRB_THETA: 5.85 [deg]
DELTA_TIME: 0.00 [sec]
TRIGGER_DUR: 64.000 [sec]
SOLN_STATUS: 0x513
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 16.14 [sigma]
LC_URL: sw01191903000msb.lc
GCN template for BAT paragraph
Click here!
At 16:44:15 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 230913 ***A*** (trigger=1191903). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 299.695, +35.434 which is
RA(J2000) = 19h 58m 47s
Dec(J2000) = +35d 26' 01"
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 ~1250 counts/sec (15-350 keV), at ~4 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
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 background rate 1: 3771.165 near MET 716316368.960000 s
Estimated background rate 2: 3771.165 near MET 716316368.960000 s
Estimated total fluence: 0.000000 count
Created GTI with 1 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 299.695 35.434 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 299.695 35.434
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: 2023 9 13 16 333.011395 51.684809
Obj: 2023 9 13 16 208.266841 -8.788963
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2023 9 13 16 289.962536 35.118076
Obj: 2023 9 13 16 180.966916 -22.839867
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2023 9 13 16 286.738474 29.803843
Obj: 2023 9 13 16 175.738356 -21.029513
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2023 9 13 16 264.814264 -3.420042
Obj: 2023 9 13 16 143.116059 -21.046405
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2023 9 13 16 308.741666 -50.855510
Obj: 2023 9 13 16 124.950295 -11.179246
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2023 9 13 16 200.370509 -49.994307
Obj: 2023 9 13 16 110.909753 38.144595
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2023 9 13 16 66.326381 42.415249
Obj: 2023 9 13 16 239.353273 19.252547
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2023 9 13 16 198.195915 54.484346
Obj: 2023 9 13 16 250.336832 -55.470655
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1191903/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:
Wed Sep 13 12:56:03 EDT 2023