TDRSS lightcurve for Trigger=1192088
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 15 Sep 23 01:31:55 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1192088, Seg_Num: 0
GRB_RA: 244.944d {+16h 19m 47s} (J2000),
245.281d {+16h 21m 07s} (current),
244.234d {+16h 16m 56s} (1950)
GRB_DEC: -15.440d {-15d 26' 23"} (J2000),
-15.496d {-15d 29' 43"} (current),
-15.321d {-15d 19' 13"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 0 [cnts] Image_Peak=2318 [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: 20202 TJD; 258 DOY; 23/09/15
GRB_TIME: 5439.98 SOD {01:30:39.98} UT
GRB_PHI: 173.09 [deg]
GRB_THETA: 29.71 [deg]
SOLN_STATUS: 0x513
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 9.92 [sigma]
MERIT_PARAMS: +1 +0 +0 +6 +1 +0 +0 +0 -27 +0
SUN_POSTN: 172.63d {+11h 30m 30s} +3.18d {+03d 11' 01"}
SUN_DIST: 74.21 [deg] Sun_angle= -4.8 [hr] (East of Sun)
MOON_POSTN: 173.86d {+11h 35m 26s} +5.80d {+05d 48' 09"}
MOON_DIST: 73.83 [deg]
MOON_ILLUM: 0 [%]
GAL_COORDS: 359.24, 23.94 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 245.77, 5.92 [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: Sco_X-1, delta=0.203 [deg].
COMMENTS: This is not a GRB.
COMMENTS: This trigger occurred at longitude,latitude = 241.19,-20.51 [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: Fri 15 Sep 23 01:48:20 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1192088, Seg_Num: 0
GRB_RA: 244.944d {+16h 19m 47s} (J2000),
245.281d {+16h 21m 07s} (current),
244.234d {+16h 16m 56s} (1950)
GRB_DEC: -15.440d {-15d 26' 23"} (J2000),
-15.496d {-15d 29' 43"} (current),
-15.321d {-15d 19' 13"} (1950)
GRB_DATE: 20202 TJD; 258 DOY; 23/09/15
GRB_TIME: 5439.98 SOD {01:30:39.98} UT
TRIGGER_INDEX: 20000
GRB_PHI: 173.09 [deg]
GRB_THETA: 29.71 [deg]
DELTA_TIME: 0.00 [sec]
TRIGGER_DUR: 64.000 [sec]
SOLN_STATUS: 0x513
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 9.92 [sigma]
LC_URL: sw01192088000msb.lc
GCN template for BAT paragraph
Click here!
At 01:30:39 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 230915 ***A*** (trigger=1192088). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 244.944, -15.440 which is
RA(J2000) = 16h 19m 47s
Dec(J2000) = -15d 26' 23"
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 ~1229 counts/sec (15-350 keV), at ~175 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: 36.864 s +/- 41.1643 s
Estimated T50 duration: 36.864 s +/- 41.1643 s
Estimated Peak Interval: MET 716434402.62399995 +/- 0.500000 s
Estimated background rate 1: 4344.433 near MET 716434305.856000 s
Estimated background rate 2: 4996.460 near MET 716434429.248000 s
Estimated total duration: 36.864 s (for data selection)
(from MET 716434363.712000 to MET 716434400.576000)
Estimated total fluence: -525.053504 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 244.944 -15.440 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 244.944 -15.440
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 15 1 111.541774 -19.802948
Obj: 2023 9 15 1 47.854582 20.529487
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2023 9 15 1 89.966025 6.101200
Obj: 2023 9 15 1 15.607875 41.386705
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2023 9 15 1 86.470308 11.092658
Obj: 2023 9 15 1 7.778864 40.777508
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2023 9 15 1 72.221117 47.414645
Obj: 2023 9 15 1 315.513925 42.340856
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2023 9 15 1 205.683085 52.550915
Obj: 2023 9 15 1 282.331425 9.635839
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2023 9 15 1 309.361412 46.923352
Obj: 2023 9 15 1 275.108134 -20.589058
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2023 9 15 1 175.767646 -58.003193
Obj: 2023 9 15 1 83.040678 -20.423937
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2023 9 15 1 73.793756 -31.237037
Obj: 2023 9 15 1 95.204905 40.298594
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1192088/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 Sep 14 21:48:42 EDT 2023