TDRSS lightcurve for Trigger=1150107
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 21 Jan 23 05:45:32 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1150107, Seg_Num: 0
GRB_RA: 70.267d {+04h 41m 04s} (J2000),
70.682d {+04h 42m 44s} (current),
69.370d {+04h 37m 29s} (1950)
GRB_DEC: +44.525d {+44d 31' 30"} (J2000),
+44.568d {+44d 34' 05"} (current),
+44.429d {+44d 25' 45"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 0 [cnts] Image_Peak=4211 [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: 19965 TJD; 21 DOY; 23/01/21
GRB_TIME: 20657.38 SOD {05:44:17.38} UT
GRB_PHI: 87.37 [deg]
GRB_THETA: 0.05 [deg]
SOLN_STATUS: 0x11D
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 18.08 [sigma]
MERIT_PARAMS: +0 +0 +100 +6 +1 +5 +0 +1 +64 +0
SUN_POSTN: 303.13d {+20h 12m 31s} -19.95d {-19d 57' 04"}
SUN_DIST: 130.36 [deg] Sun_angle= -8.5 [hr] (East of Sun)
MOON_POSTN: 294.58d {+19h 38m 20s} -26.33d {-26d 19' 48"}
MOON_DIST: 140.47 [deg]
MOON_ILLUM: 1 [%]
GAL_COORDS: 159.86, -1.26 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 74.94, 22.11 [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 matches a source in the on-board catalog: Num=10697=LS V +44 17, delta=0.015 [deg].
COMMENTS: This matches a source in the ground catalog: LS V +44 17, delta=0.015 [deg].
COMMENTS: This is not a GRB.
COMMENTS: This is an interesting source.
COMMENTS: This trigger occurred at longitude,latitude = 162.84,10.48 [deg].
COMMENTS:
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Sat 21 Jan 23 06:02:06 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1150107, Seg_Num: 0
GRB_RA: 70.267d {+04h 41m 04s} (J2000),
70.682d {+04h 42m 44s} (current),
69.370d {+04h 37m 29s} (1950)
GRB_DEC: +44.525d {+44d 31' 30"} (J2000),
+44.568d {+44d 34' 05"} (current),
+44.429d {+44d 25' 45"} (1950)
GRB_DATE: 19965 TJD; 21 DOY; 23/01/21
GRB_TIME: 20657.38 SOD {05:44:17.38} UT
TRIGGER_INDEX: 20000
GRB_PHI: 87.37 [deg]
GRB_THETA: 0.05 [deg]
DELTA_TIME: 0.00 [sec]
TRIGGER_DUR: 64.000 [sec]
SOLN_STATUS: 0x11D
RATE_SIGNIF: 0.00 [sigma]
IMAGE_SIGNIF: 18.08 [sigma]
LC_URL: sw01150107000msb.lc
GCN template for BAT paragraph
Click here!
At 05:44:17 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 230121 ***A*** (trigger=1150107). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 70.267, +44.525 which is
RA(J2000) = 04h 41m 04s
Dec(J2000) = +44d 31' 30"
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 ~816 counts/sec (15-350 keV), at ~15 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: 55.808 s +/- 4.16738 s
Estimated T50 duration: 28.672 s +/- 2.98545 s
Estimated Peak Interval: MET 695972740.79999995 +/- 0.500000 s
Estimated background rate 1: 2918.403 near MET 695972680.128000 s
Estimated background rate 2: 2936.251 near MET 695972820.672000 s
Estimated total duration: 71.168 s (for data selection)
(from MET 695972696.256000 to MET 695972767.424000)
Estimated total fluence: 15778.487765 count
Created GTI with 5 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 70.267 44.525 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 70.267 44.525
LSV+44 17 33937 70.247 44.53 0.01510746095378655
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 1 21 6 206.795054 -69.165726
Obj: 2023 1 21 6 118.106300 44.326473
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2023 1 21 6 112.573561 -65.380247
Obj: 2023 1 21 6 128.400746 64.461253
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2023 1 21 6 108.909338 -60.075737
Obj: 2023 1 21 6 129.610081 69.436489
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2023 1 21 6 76.799807 -25.893602
Obj: 2023 1 21 6 205.024348 61.790218
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2023 1 21 6 88.736692 38.948746
Obj: 2023 1 21 6 223.398980 -10.047360
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2023 1 21 6 40.565030 24.077193
Obj: 2023 1 21 6 231.444467 24.371392
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2023 1 21 6 278.814212 -27.536452
Obj: 2023 1 21 6 142.494828 0.717139
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2023 1 21 6 341.272694 -37.510013
Obj: 2023 1 21 6 138.183064 -7.275891
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1150107/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:
Sat Jan 21 01:03:22 EST 2023