TDRSS lightcurve for Trigger=1076121
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 01 Oct 21 00:43:33 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 1076121, Seg_Num: 0
GRB_RA: 71.470d {+04h 45m 53s} (J2000),
71.774d {+04h 47m 06s} (current),
70.774d {+04h 43m 06s} (1950)
GRB_DEC: +12.040d {+12d 02' 26"} (J2000),
+12.079d {+12d 04' 43"} (current),
+11.950d {+11d 57' 02"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 284 [cnts] Image_Peak=33 [image_cnts]
TRIGGER_DUR: 0.064 [sec]
TRIGGER_INDEX: 10416 E_range: 15-50 keV
BKG_INTEN: 26547 [cnts]
BKG_TIME: 2588.17 SOD {00:43:08.17} UT
BKG_DUR: 8 [sec]
GRB_DATE: 19488 TJD; 274 DOY; 21/10/01
GRB_TIME: 2599.69 SOD {00:43:19.69} UT
GRB_PHI: 18.67 [deg]
GRB_THETA: 20.02 [deg]
SOLN_STATUS: 0x83
RATE_SIGNIF: 9.89 [sigma]
IMAGE_SIGNIF: 6.54 [sigma]
MERIT_PARAMS: +1 +0 +0 -4 +1 -4 +0 +0 +43 +0
SUN_POSTN: 187.41d {+12h 29m 39s} -3.20d {-03d 12' 02"}
SUN_DIST: 115.73 [deg] Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN: 122.95d {+08h 11m 47s} +24.39d {+24d 23' 21"}
MOON_DIST: 49.85 [deg]
MOON_ILLUM: 32 [%]
GAL_COORDS: 186.34,-20.99 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 71.59,-10.22 [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 = 26.49,20.06 [deg].
COMMENTS: This AT will self-cancel at the end of the first orbit (ie I_signif<7.0 && Trig_dur<65msec).
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 01 Oct 21 00:51:14 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 1076121, Seg_Num: 0
GRB_RA: 71.470d {+04h 45m 53s} (J2000),
71.774d {+04h 47m 06s} (current),
70.774d {+04h 43m 06s} (1950)
GRB_DEC: +12.040d {+12d 02' 26"} (J2000),
+12.079d {+12d 04' 43"} (current),
+11.950d {+11d 57' 02"} (1950)
GRB_DATE: 19488 TJD; 274 DOY; 21/10/01
GRB_TIME: 2599.85 SOD {00:43:19.85} UT
TRIGGER_INDEX: 10416
GRB_PHI: 18.67 [deg]
GRB_THETA: 20.02 [deg]
DELTA_TIME: -46.00 [sec]
TRIGGER_DUR: 0.064 [sec]
SOLN_STATUS: 0x83
RATE_SIGNIF: 9.89 [sigma]
IMAGE_SIGNIF: 6.54 [sigma]
LC_URL: sw01076121000msb.lc
GCN template for BAT paragraph
Click here!
At 00:43:19 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 211001 ***A*** (trigger=1076121). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 71.470, +12.040 which is
RA(J2000) = 04h 45m 53s
Dec(J2000) = +12d 02' 26"
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 ~1257 counts/sec (15-350 keV), at ~1 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
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: 8.192 s +/- 4.096 s
Estimated T50 duration: 4.096 s +/- 4.096 s
Estimated Peak Interval: MET 654741970.11199999 +/- 0.500000 s
Estimated background rate 1: 5872.751 near MET 654741859.008000 s
Estimated background rate 2: 5805.444 near MET 654741992.640000 s
Estimated total duration: 57.344 s (for data selection)
(from MET 654741914.816000 to MET 654741972.160000)
Estimated total fluence: 1160.833544 count
Created GTI with 4 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 71.470 12.040 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 71.470 12.040
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 10 1 0 97.175695 -13.821401
Obj: 2021 10 1 0 225.473906 -26.363137
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2021 10 1 0 77.095185 14.131798
Obj: 2021 10 1 0 189.552621 -45.778107
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2021 10 1 0 73.019758 18.578521
Obj: 2021 10 1 0 181.121780 -44.588052
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2021 10 1 0 51.524176 55.152706
Obj: 2021 10 1 0 127.461672 -41.022404
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2021 10 1 0 229.857563 50.888632
Obj: 2021 10 1 0 102.004734 -3.550814
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2021 10 1 0 301.805054 33.071189
Obj: 2021 10 1 0 89.058893 23.070347
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2021 10 1 0 146.638342 -60.360895
Obj: 2021 10 1 0 263.876556 14.240107
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2021 10 1 0 76.161038 -16.407514
Obj: 2021 10 1 0 282.526664 -43.221929
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger1076121/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:
Thu Sep 30 20:55:03 EDT 2021