TDRSS lightcurve for Trigger=1211212
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 26 Jan 24 20:05:27 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1211212, Seg_Num: 0
GRB_RA: 245.627d {+16h 22m 30s} (J2000),
245.970d {+16h 23m 53s} (current),
244.916d {+16h 19m 40s} (1950)
GRB_DEC: -15.672d {-15d 40' 18"} (J2000),
-15.727d {-15d 43' 36"} (current),
-15.555d {-15d 33' 19"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 0 [cnts] Image_Peak=4660 [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: 20335 TJD; 26 DOY; 24/01/26
GRB_TIME: 72111.19 SOD {20:01:51.19} UT
GRB_PHI: -101.12 [deg]
GRB_THETA: 0.16 [deg]
SOLN_STATUS: 0x1000041D
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 16.44 [sigma]
MERIT_PARAMS: +0 +0 +100 +6 +1 +4 +0 +0 -49 +0
SUN_POSTN: 308.74d {+20h 34m 58s} -18.68d {-18d 40' 49"}
SUN_DIST: 59.73 [deg] Sun_angle= 4.2 [hr] (West of Sun)
MOON_POSTN: 142.24d {+09h 28m 58s} +19.39d {+19d 23' 20"}
MOON_DIST: 107.79 [deg]
MOON_ILLUM: 99 [%]
GAL_COORDS: 359.50, 23.28 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 246.46, 5.80 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS: SWIFT-BAT GRB Coordinates.
COMMENTS: This Notice was delayed by more than 60 sec past the end of the trigger integration interval;
COMMENTS: probably due to it occurring during a Malindi downlink session.
COMMENTS: This is an image trigger. (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)
COMMENTS: A point_source was found.
COMMENTS: This matches a source in the on-board catalog: Num=21211=(null) (probably an AT_Slot).
COMMENTS: This does not match any source in the ground catalog.
COMMENTS: This is not a GRB.
COMMENTS: This is an interesting source.
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 26 Jan 24 20:08:56 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1211211, Seg_Num: 0
GRB_RA: 245.465d {+16h 21m 52s} (J2000),
245.807d {+16h 23m 14s} (current),
244.754d {+16h 19m 01s} (1950)
GRB_DEC: -15.660d {-15d 39' 36"} (J2000),
-15.716d {-15d 42' 55"} (current),
-15.543d {-15d 32' 35"} (1950)
GRB_DATE: 20335 TJD; 26 DOY; 24/01/26
GRB_TIME: 71703.19 SOD {19:55:03.19} UT
TRIGGER_INDEX: 20000
GRB_PHI: 175.54 [deg]
GRB_THETA: 42.05 [deg]
DELTA_TIME: 0.00 [sec]
TRIGGER_DUR: 64.000 [sec]
SOLN_STATUS: 0x413
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 10.46 [sigma]
LC_URL: sw01211211000msb.lc
GCN template for BAT paragraph
Click here!
At 19:55:03 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 240126 ***A*** (trigger=1211212). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 245.465, -15.660 which is
RA(J2000) = 16h 21m 52s
Dec(J2000) = -15d 39' 36"
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 ~0 counts/sec (15-350 keV), at ~ 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
TDRSS extended lightcurve from T0-1 to T0+2
T50 and T90 calculation
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 245.465 -15.660 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 245.465 -15.660
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: 2024 1 26 20 40.353312 21.461142
Obj: 2024 1 26 20 85.131438 -19.394116
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 1 26 20 6.735221 39.322973
Obj: 2024 1 26 20 65.056783 9.104522
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 1 26 20 359.411768 37.928458
Obj: 2024 1 26 20 61.103765 12.850699
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 1 26 20 312.685160 35.625059
Obj: 2024 1 26 20 35.111003 47.391853
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 1 26 20 288.332804 5.822952
Obj: 2024 1 26 20 248.950774 57.245166
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 1 26 20 274.598498 -27.634506
Obj: 2024 1 26 20 309.207325 22.051049
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 1 26 20 77.156854 -16.103820
Obj: 2024 1 26 20 123.315895 -68.493091
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 1 26 20 95.037070 47.363272
Obj: 2024 1 26 20 67.063410 -7.187640
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1211212/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:
Fri Jan 26 15:09:22 EST 2024