TDRSS lightcurve for Trigger=1015919
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Mon 04 Jan 21 21:10:23 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1015919, Seg_Num: 0
GRB_RA: 53.601d {+03h 34m 24s} (J2000),
53.944d {+03h 35m 47s} (current),
52.787d {+03h 31m 09s} (1950)
GRB_DEC: +37.931d {+37d 55' 51"} (J2000),
+38.000d {+37d 59' 60"} (current),
+37.764d {+37d 45' 50"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 3485 [cnts] Image_Peak=159 [image_cnts]
TRIGGER_DUR: 1.024 [sec]
TRIGGER_INDEX: 137 E_range: 15-50 keV
BKG_INTEN: 22116 [cnts]
BKG_TIME: 76197.72 SOD {21:09:57.72} UT
BKG_DUR: 8 [sec]
GRB_DATE: 19218 TJD; 4 DOY; 21/01/04
GRB_TIME: 76210.84 SOD {21:10:10.84} UT
GRB_PHI: -108.99 [deg]
GRB_THETA: 25.69 [deg]
SOLN_STATUS: 0x3
RATE_SIGNIF: 11.53 [sigma]
IMAGE_SIGNIF: 7.88 [sigma]
MERIT_PARAMS: +1 +0 +0 +0 +1 -2 +0 +0 +67 +0
SUN_POSTN: 286.00d {+19h 04m 00s} -22.62d {-22d 37' 14"}
SUN_DIST: 133.16 [deg] Sun_angle= -8.5 [hr] (East of Sun)
MOON_POSTN: 177.53d {+11h 50m 06s} +6.78d {+06d 46' 47"}
MOON_DIST: 111.11 [deg]
MOON_ILLUM: 67 [%]
GAL_COORDS: 155.06,-14.57 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 60.49, 18.15 [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 = 39.59,15.46 [deg].
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Mon 04 Jan 21 21:29:18 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1015919, Seg_Num: 0
GRB_RA: 53.601d {+03h 34m 24s} (J2000),
53.944d {+03h 35m 47s} (current),
52.787d {+03h 31m 09s} (1950)
GRB_DEC: +37.931d {+37d 55' 51"} (J2000),
+38.000d {+37d 59' 60"} (current),
+37.764d {+37d 45' 50"} (1950)
GRB_DATE: 19218 TJD; 4 DOY; 21/01/04
GRB_TIME: 76210.84 SOD {21:10:10.84} UT
TRIGGER_INDEX: 137
GRB_PHI: -108.99 [deg]
GRB_THETA: 25.69 [deg]
DELTA_TIME: -31.00 [sec]
TRIGGER_DUR: 1.024 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 11.53 [sigma]
IMAGE_SIGNIF: 7.88 [sigma]
LC_URL: sw01015919000msb.lc
GCN template for BAT paragraph
Click here!
At 21:10:10 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 210104 ***A*** (trigger=1015919). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 53.601, +37.931 which is
RA(J2000) = 03h 34m 24s
Dec(J2000) = +37d 55' 51"
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 ~1953 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
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: 23.424 s +/- 0.729712 s
Estimated T50 duration: 8.064 s +/- 1.30535 s
Estimated Peak Interval: MET 631487448.25600004 +/- 0.500000 s
Estimated background rate 1: 5409.722 near MET 631487424.896000 s
Estimated background rate 2: 5140.739 near MET 631487557.184000 s
Estimated total duration: 54.656 s (for data selection)
(from MET 631487436.992000 to MET 631487491.648000)
Estimated total fluence: 12079.292956 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 53.601 37.931 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 53.601 37.931
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: 2021 1 4 21 51.029499 8.921894
Obj: 2021 1 4 21 246.694981 35.452016
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2021 1 4 21 24.301617 31.604536
Obj: 2021 1 4 21 230.059211 8.168083
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2021 1 4 21 17.794337 31.862811
Obj: 2021 1 4 21 227.391232 5.473370
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2021 1 4 21 331.774816 42.264077
Obj: 2021 1 4 21 205.758907 -25.782022
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2021 1 4 21 284.129160 21.516199
Obj: 2021 1 4 21 114.736212 -67.927045
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2021 1 4 21 286.799379 -16.012714
Obj: 2021 1 4 21 147.650248 -7.681396
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2021 1 4 21 79.973610 -32.106368
Obj: 2021 1 4 21 225.411953 75.987684
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2021 1 4 21 82.001161 34.424936
Obj: 2021 1 4 21 225.949896 -1.837527
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1015919/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:
Mon Jan 4 16:29:43 EST 2021