TDRSS lightcurve for Trigger=1281241
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Tue 14 Jan 25 07:33:56 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1281241, Seg_Num: 0
GRB_RA: 166.590d {+11h 06m 22s} (J2000),
166.902d {+11h 07m 37s} (current),
165.967d {+11h 03m 52s} (1950)
GRB_DEC: -15.143d {-15d 08' 34"} (J2000),
-15.279d {-15d 16' 43"} (current),
-14.873d {-14d 52' 21"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 9127 [cnts] Image_Peak=185 [image_cnts]
TRIGGER_DUR: 4.096 [sec]
TRIGGER_INDEX: 299 E_range: 25-100 keV
BKG_INTEN: 80093 [cnts]
BKG_TIME: 27141.10 SOD {07:32:21.10} UT
BKG_DUR: 40 [sec]
GRB_DATE: 20689 TJD; 14 DOY; 25/01/14
GRB_TIME: 27199.47 SOD {07:33:19.47} UT
GRB_PHI: 39.29 [deg]
GRB_THETA: 41.20 [deg]
SOLN_STATUS: 0x83
RATE_SIGNIF: 9.38 [sigma]
IMAGE_SIGNIF: 6.87 [sigma]
MERIT_PARAMS: +1 +0 +0 +2 +2 -3 +0 +0 +48 +0
SUN_POSTN: 296.29d {+19h 45m 10s} -21.24d {-21d 14' 14"}
SUN_DIST: 118.37 [deg] Sun_angle= 8.6 [hr] (West of Sun)
MOON_POSTN: 122.20d {+08h 08m 49s} +24.58d {+24d 35' 02"}
MOON_DIST: 59.08 [deg]
MOON_ILLUM: 100 [%]
GAL_COORDS: 268.67, 40.64 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 173.83,-19.19 [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: Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.
COMMENTS: This trigger occurred at longitude,latitude = 295.71,18.87 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Tue 14 Jan 25 08:09:44 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1281241, Seg_Num: 0
GRB_RA: 166.590d {+11h 06m 22s} (J2000),
166.902d {+11h 07m 37s} (current),
165.967d {+11h 03m 52s} (1950)
GRB_DEC: -15.143d {-15d 08' 34"} (J2000),
-15.279d {-15d 16' 43"} (current),
-14.873d {-14d 52' 21"} (1950)
GRB_DATE: 20689 TJD; 14 DOY; 25/01/14
GRB_TIME: 27199.47 SOD {07:33:19.47} UT
TRIGGER_INDEX: 299
GRB_PHI: 39.29 [deg]
GRB_THETA: 41.20 [deg]
DELTA_TIME: -76.00 [sec]
TRIGGER_DUR: 4.096 [sec]
SOLN_STATUS: 0x83
RATE_SIGNIF: 9.38 [sigma]
IMAGE_SIGNIF: 6.87 [sigma]
LC_URL: sw01281241000msb.lc
GCN template for BAT paragraph
Click here!
At 07:33:19 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 250114 ***A*** (trigger=1281241). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 166.590, -15.143 which is
RA(J2000) = 11h 06m 22s
Dec(J2000) = -15d 08' 34"
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 ~875 counts/sec (15-350 keV), at ~3 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: 140.928 s +/- 2.89772 s
Estimated T50 duration: 89.088 s +/- 2.98545 s
Estimated Peak Interval: MET 758532980.60799992 +/- 0.500000 s
Estimated background rate 1: 3991.088 near MET 758532822.336000 s
Estimated background rate 2: 3831.190 near MET 758533001.088000 s
Estimated total duration: 147.584 s (for data selection)
(from MET 758532835.072000 to MET 758532982.656000)
Estimated total fluence: 14038.846076 count
Created GTI with 9 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 166.590 -15.143 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 166.590 -15.143
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: 2025 1 14 8 254.660532 -51.288719
Obj: 2025 1 14 8 347.937066 34.850288
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2025 1 14 8 210.023143 -78.125111
Obj: 2025 1 14 8 311.109385 26.691606
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2025 1 14 8 181.610900 -77.892545
Obj: 2025 1 14 8 307.039933 21.723839
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2025 1 14 8 80.899544 -54.273243
Obj: 2025 1 14 8 284.788815 -4.092781
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2025 1 14 8 73.338970 13.828030
Obj: 2025 1 14 8 318.297740 -32.206068
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2025 1 14 8 61.134279 3.538316
Obj: 2025 1 14 8 226.677887 -64.307022
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2025 1 14 8 293.003580 -2.419672
Obj: 2025 1 14 8 53.493501 25.480189
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2025 1 14 8 313.472224 -21.954633
Obj: 2025 1 14 8 195.766090 74.415460
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1281241/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:
Tue Jan 14 03:10:03 EST 2025