TDRSS lightcurve for Trigger=879909
Notes:
- 1) None of the TDRSS light curves are background subtracted.
GCN BAT Position Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 28 Dec 18 02:53:37 UT
NOTICE_TYPE: Swift-BAT GRB Position
TRIGGER_NUM: 879909, Seg_Num: 0
GRB_RA: 49.831d {+03h 19m 19s} (J2000),
50.093d {+03h 20m 22s} (current),
49.141d {+03h 16m 34s} (1950)
GRB_DEC: +13.195d {+13d 11' 42"} (J2000),
+13.263d {+13d 15' 46"} (current),
+13.014d {+13d 00' 51"} (1950)
GRB_ERROR: 3.00 [arcmin radius, statistical only]
GRB_INTEN: 5189 [cnts] Image_Peak=443 [image_cnts]
TRIGGER_DUR: 1.024 [sec]
TRIGGER_INDEX: 147 E_range: 25-100 keV
BKG_INTEN: 21663 [cnts]
BKG_TIME: 10385.84 SOD {02:53:05.84} UT
BKG_DUR: 8 [sec]
GRB_DATE: 18480 TJD; 362 DOY; 18/12/28
GRB_TIME: 10397.62 SOD {02:53:17.62} UT
GRB_PHI: 114.59 [deg]
GRB_THETA: 32.85 [deg]
SOLN_STATUS: 0x20000003
RATE_SIGNIF: 53.74 [sigma]
IMAGE_SIGNIF: 15.47 [sigma]
MERIT_PARAMS: +1 +0 +0 +0 +2 +4 +0 +0 +69 +0
SUN_POSTN: 276.87d {+18h 27m 29s} -23.29d {-23d 17' 08"}
SUN_DIST: 134.67 [deg] Sun_angle= -8.9 [hr] (East of Sun)
MOON_POSTN: 172.05d {+11h 28m 13s} +7.90d {+07d 54' 08"}
MOON_DIST: 118.60 [deg]
MOON_ILLUM: 64 [%]
GAL_COORDS: 169.32,-36.03 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 50.92, -4.96 [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 = 194.20,10.87 [deg].
COMMENTS:
COMMENTS: NOTE: This BAT event is temporally(3.0<100sec) coincident with the FERMI_GBM event (trignum=567658399).
GCN BAT Lightcurve Notice
TITLE: GCN/SWIFT NOTICE
NOTICE_DATE: Fri 28 Dec 18 03:14:05 UT
NOTICE_TYPE: Swift-BAT GRB Lightcurve
TRIGGER_NUM: 879909, Seg_Num: 0
GRB_RA: 49.831d {+03h 19m 19s} (J2000),
50.093d {+03h 20m 22s} (current),
49.141d {+03h 16m 34s} (1950)
GRB_DEC: +13.195d {+13d 11' 42"} (J2000),
+13.263d {+13d 15' 46"} (current),
+13.014d {+13d 00' 51"} (1950)
GRB_DATE: 18480 TJD; 362 DOY; 18/12/28
GRB_TIME: 10397.62 SOD {02:53:17.62} UT
TRIGGER_INDEX: 147
GRB_PHI: 114.59 [deg]
GRB_THETA: 32.85 [deg]
DELTA_TIME: -56.00 [sec]
TRIGGER_DUR: 1.024 [sec]
SOLN_STATUS: 0x3
RATE_SIGNIF: 53.74 [sigma]
IMAGE_SIGNIF: 15.47 [sigma]
LC_URL: sw00879909000msb.lc
GCN template for BAT paragraph
Click here!
At 02:53:17 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 181228 ***A*** (trigger=879909). Swift slewed immediately to the burst.
The BAT on-board calculated location is
RA, Dec 49.831, +13.195 which is
RA(J2000) = 03h 19m 19s
Dec(J2000) = +13d 11' 42"
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 ~6979 counts/sec (15-350 keV), at ~13 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: 17.92 s +/- 0.286217 s
Estimated T50 duration: 9.728 s +/- 0.202386 s
Estimated Peak Interval: MET 567658433.21600008 +/- 0.500000 s
Estimated background rate 1: 5341.280 near MET 567658405.120000 s
Estimated background rate 2: 5435.491 near MET 567658524.736000 s
Estimated total duration: 29.312 s (for data selection)
(from MET 567658415.040000 to MET 567658444.352000)
Estimated total fluence: 71680.496675 count
Created GTI with 18 entries
------------------------------------------
Search for this GRB position to the previously BAT detected GRB positions (search radius within 5 arcmin)
bat_grb_pos_cat.sh 49.831 13.195 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 49.831 13.195
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: 2018 12 28 3 109.832496 -58.167879
Obj: 2018 12 28 3 29.638851 61.393659
the object visibility at GSFC, Greenbelt, Maryland
MMT Observatory, Mt. Hopkins, Arizona
TimeUT Azimuth Elevation
Sun: 2018 12 28 3 80.194895 -31.140332
Obj: 2018 12 28 3 310.706116 64.030605
the object visibility at MMT, Mt. Hopkins, Arizona
Hale Telescope, Palomar Mountain, California
TimeUT Azimuth Elevation
Sun: 2018 12 28 3 78.390698 -26.493041
Obj: 2018 12 28 3 304.258878 59.009009
the object visibility at Hale Telescope, Palomar Mt., California
Mauna Kea, Hawaii
TimeUT Azimuth Elevation
Sun: 2018 12 28 3 60.446772 10.313415
Obj: 2018 12 28 3 265.205799 28.121581
the object visibility at Mauna Kea, Hawaii
Siding Spring Obs., Australia
TimeUT Azimuth Elevation
Sun: 2018 12 28 3 121.003761 75.790709
Obj: 2018 12 28 3 273.834525 -32.359081
the object visibility at Siding Spring Obs., Australia
Tokyo, Japan
TimeUT Azimuth Elevation
Sun: 2018 12 28 3 356.327365 32.181731
Obj: 2018 12 28 3 228.638908 -27.021834
the object visibility at Tokyo, Japan
William Herschel Telescope, La Palma, Canary Islands, Spain
TimeUT Azimuth Elevation
Sun: 2018 12 28 3 263.069617 -65.827963
Obj: 2018 12 28 3 93.981025 20.994271
the object visibility at William Hershel Telescope, La Palma, Canary Islands, Spain
Gemini South, Cerro Pachon, Chile
TimeUT Azimuth Elevation
Sun: 2018 12 28 3 28.748072 -30.544413
Obj: 2018 12 28 3 153.267494 42.323461
the object visibility at Gemini South, Cerro Pachon, Chile
The data/results are in /local/data/bat1/prebascript/trigger879909/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 Dec 27 22:14:23 EST 2018