TDRSS lightcurve for Trigger=1270788
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Wed 27 Nov 24 21:43:31 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1270788, Seg_Num: 0
GRB_RA: 327.922d {+21h 51m 41s} (J2000),
328.352d {+21h 53m 25s} (current),
327.053d {+21h 48m 13s} (1950)
GRB_DEC: -56.685d {-56d 41' 06"} (J2000),
-56.568d {-56d 34' 02"} (current),
-56.920d {-56d 55' 11"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 7828 [cnts] Image_Peak=468 [image_cnts]
TRIGGER_DUR: 1.024 [sec]
TRIGGER_INDEX: 137 E_range: 15-50 keV
BKG_INTEN: 52937 [cnts]
BKG_TIME: 78181.38 SOD {21:43:01.38} UT
BKG_DUR: 8 [sec]
GRB_DATE: 20641 TJD; 332 DOY; 24/11/27
GRB_TIME: 78196.23 SOD {21:43:16.23} UT
GRB_PHI: -178.08 [deg]
GRB_THETA: 11.81 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 12.04 [sigma]
IMAGE_SIGNIF: 12.63 [sigma]
MERIT_PARAMS: +1 +0 +0 +0 +1 +2 +0 +0 -35 +0
SUN_POSTN: 244.27d {+16h 17m 05s} -21.33d {-21d 19' 48"}
SUN_DIST: 69.12 [deg] Sun_angle= -5.6 [hr] (East of Sun)
MOON_POSTN: 205.98d {+13h 43m 54s} -12.87d {-12d 52' 17"}
MOON_DIST: 95.84 [deg]
MOON_ILLUM: 10 [%]
GAL_COORDS: 337.34,-46.64 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 307.80,-40.59 [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 = 344.59,-18.86 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Wed 27 Nov 24 21:59:40 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1270788, Seg_Num: 0
GRB_RA: 327.922d {+21h 51m 41s} (J2000),
328.352d {+21h 53m 25s} (current),
327.053d {+21h 48m 13s} (1950)
GRB_DEC: -56.685d {-56d 41' 06"} (J2000),
-56.568d {-56d 34' 02"} (current),
-56.920d {-56d 55' 11"} (1950)
GRB_DATE: 20641 TJD; 332 DOY; 24/11/27
GRB_TIME: 78196.23 SOD {21:43:16.23} UT
TRIGGER_INDEX: 137
GRB_PHI: -178.08 [deg]
GRB_THETA: 11.81 [deg]
DELTA_TIME: -43.00 [sec]
TRIGGER_DUR: 1.024 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 12.04 [sigma]
IMAGE_SIGNIF: 12.63 [sigma]
LC_URL: sw01270788000msb.lc
GCN template for BAT paragraph
Click here!
At 21:43:16 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 241127 ***A*** (trigger=1270788). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 327.922, -56.685 which is
RA(J2000) = 21h 51m 41s
Dec(J2000) = -56d 41' 06"
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 ~8537 counts/sec (15-350 keV), at ~0 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
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: 183.04 s +/- 38.6729 s
Estimated T50 duration: 183.04 s +/- 87.6777 s
Estimated Peak Interval: MET 754436631.29600000 +/- 0.500000 s
Estimated background rate 1: 14223.281 near MET 754436609.600000 s
Estimated background rate 2: 6223.535 near MET 754436806.080000 s
Estimated total duration: 183.04 s (for data selection)
(from MET 754436612.800000 to MET 754436795.840000)
Estimated total fluence: -305653.334532 count
Created GTI with 22 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 327.922 -56.685 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 327.922 -56.685
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 11 27 22 64.614052 -2.877933
Obj: 2024 11 27 22 355.346535 -5.872770
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2024 11 27 22 42.504827 23.615151
Obj: 2024 11 27 22 338.082499 -5.330740
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2024 11 27 22 37.018610 25.563950
Obj: 2024 11 27 22 335.356001 -8.855231
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2024 11 27 22 355.846410 48.697321
Obj: 2024 11 27 22 325.306202 -14.874742
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2024 11 27 22 274.154165 37.271556
Obj: 2024 11 27 22 340.353866 3.401985
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2024 11 27 22 295.867510 -0.440073
Obj: 2024 11 27 22 333.694169 -63.675236
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2024 11 27 22 89.633306 -48.516482
Obj: 2024 11 27 22 25.310397 -5.469992
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2024 11 27 22 75.112214 17.545946
Obj: 2024 11 27 22 356.860503 63.693107
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1270788/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 Nov 27 17:00:02 EST 2024