Event between (123509) 00WK183 and star GA1100:01470627 with event index number of 170323
Geocentric closest approach at 2019/01/05 10:50:05 UTC
J2000 position of star is 05:49:49.6 +21:25:20
Equinox of date position of star is 05:50:57.7 +21:25:36
Stellar brightness G=15.7,
use SENSEUP=128
Star is 170 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=22.9
[RECON map]
TNO is 42.6 AU from the Sun
and 41.7 AU from the Earth.
The TNO is moving 24.4
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 249 seconds.
The 1-sigma cross-track error in the shadow position is
1598 km.
The sky-plane scale is
30232.8 km/arcsec.
The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 11.8 sec chord
Diameter=117.7 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is CLASSICAL
Star training set for 123509, (2019/01/05 10:50UT) Object RA Dec mag sep mel Betelgeuse 05:56:12.1 +07:24:33 0.4 14.07 163 Alnath 05:27:29.7 +28:37:18 1.6 8.94 163 54Chi1Ori 05:55:30.6 +20:16:41 5.1 1.56 171 PPM 094925 05:50:21.0 +21:08:26 7.1 0.32 169 PPM 094937 05:50:39.8 +21:18:58 9.5 0.13 170 123509 05:50:58.0 +21:25:36 15.7 170 Positions are for equinox of date
This table contains the target star visibility for the RECON
network. The observing range has been set to a maximum of
3.6 sigma about the mid-time.
The median site spacing is 20.0 km
RECON observability=1.0 and success probability=22.4%
Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
Kelowna | 10:47:39 | -47.9 | Dark | Down | 35.5 | 261.3 | Up | 10:32:39 - 11:02:39 | -336 |
Summerland | 10:47:39 | -48.1 | Dark | Down | 35.7 | 261.1 | Up | 10:32:39 - 11:02:39 | -348 |
Penticton | 10:47:38 | -48.1 | Dark | Down | 35.7 | 261.4 | Up | 10:32:38 - 11:02:38 | -370 |
Okanagan Falls | 10:47:37 | -48.2 | Dark | Down | 35.7 | 261.6 | Up | 10:32:37 - 11:02:37 | -387 |
Oliver | 10:47:37 | -48.3 | Dark | Down | 35.7 | 261.7 | Up | 10:32:37 - 11:02:37 | -400 |
Anarchist Mountain Observatory | 10:47:36 | -48.2 | Dark | Down | 35.6 | 262.0 | Up | 10:32:36 - 11:02:36 | -410 |
Oroville | 10:47:36 | -48.3 | Dark | Down | 35.7 | 262.0 | Up | 10:32:36 - 11:02:36 | -418 |
Tonasket | 10:47:35 | -48.4 | Dark | Down | 35.7 | 262.1 | Up | 10:32:35 - 11:02:35 | -438 |
Okanogan | 10:47:35 | -48.6 | Dark | Down | 35.9 | 262.2 | Up | 10:32:35 - 11:02:35 | -469 |
Brewster | 10:47:34 | -48.8 | Dark | Down | 36.0 | 262.3 | Up | 10:32:34 - 11:02:34 | -497 |
Manson/Chelan | 10:47:34 | -49.2 | Dark | Down | 36.3 | 262.1 | Up | 10:32:34 - 11:02:34 | -524 |
Entiat | 10:47:33 | -49.3 | Dark | Down | 36.4 | 262.2 | Up | 10:32:33 - 11:02:33 | -544 |
Wenatchee | 10:47:33 | -49.5 | Dark | Down | 36.5 | 262.3 | Up | 10:32:33 - 11:02:33 | -568 |
Ellensburg | 10:47:32 | -49.8 | Dark | Down | 36.7 | 262.5 | Up | 10:32:32 - 11:02:32 | -609 |
Pasco | 10:47:28 | -49.1 | Dark | Down | 35.8 | 264.1 | Up | 10:32:28 - 11:02:28 | -640 |
Yakima | 10:47:31 | -49.9 | Dark | Down | 36.8 | 262.7 | Up | 10:32:31 - 11:02:31 | -645 |
PNWRO | 10:47:27 | -49.1 | Dark | Down | 35.7 | 264.5 | Up | 10:32:27 - 11:02:27 | -656 |
Toppenish/White Swan | 10:47:30 | -49.9 | Dark | Down | 36.7 | 263.0 | Up | 10:32:30 - 11:02:30 | -660 |
George/Umatilla | 10:47:27 | -49.4 | Dark | Down | 36.0 | 264.2 | Up | 10:32:27 - 11:02:27 | -674 |
Goldendale | 10:47:29 | -50.4 | Dark | Down | 37.0 | 263.1 | Up | 10:32:29 - 11:02:29 | -718 |
The Dalles | 10:47:30 | -50.7 | Dark | Down | 37.3 | 263.0 | Up | 10:32:30 - 11:02:30 | -747 |
Maupin | 10:47:28 | -50.8 | Dark | Down | 37.3 | 263.4 | Up | 10:32:28 - 11:02:28 | -781 |
Niwot | 10:46:52 | -40.6 | Dark | Down | 25.7 | 277.2 | Low | 10:31:52 - 11:01:52 | -799 |
Madras/Culver | 10:47:27 | -51.0 | Dark | Down | 37.4 | 263.8 | Up | 10:32:27 - 11:02:27 | -831 |
Redmond | 10:47:26 | -51.2 | Dark | Down | 37.5 | 264.0 | Up | 10:32:26 - 11:02:26 | -864 |
Sisters | 10:47:27 | -51.5 | Dark | Down | 37.8 | 263.7 | Up | 10:32:27 - 11:02:27 | -872 |
Bend | 10:47:26 | -51.4 | Dark | Down | 37.6 | 264.0 | Up | 10:32:26 - 11:02:26 | -887 |
Oregon Observatory | 10:47:25 | -51.5 | Dark | Down | 37.7 | 264.1 | Up | 10:32:25 - 11:02:25 | -906 |
La Pine/Gilchrist | 10:47:25 | -51.6 | Dark | Down | 37.8 | 264.2 | Up | 10:32:25 - 11:02:25 | -926 |
North Lake | 10:47:23 | -51.4 | Dark | Down | 37.4 | 265.0 | Up | 10:32:23 - 11:02:23 | -950 |
Paisley | 10:47:21 | -51.3 | Dark | Down | 37.2 | 265.6 | Up | 10:32:21 - 11:02:21 | -992 |
Lakeview | 10:47:19 | -51.3 | Dark | Down | 37.1 | 266.2 | Up | 10:32:19 - 11:02:19 | -1033 |
Chiloquin | 10:47:23 | -52.3 | Dark | Down | 38.2 | 264.8 | Up | 10:32:23 - 11:02:23 | -1036 |
Klamath Falls | 10:47:22 | -52.3 | Dark | Down | 38.1 | 265.1 | Up | 10:32:22 - 11:02:22 | -1065 |
Tulelake | 10:47:21 | -52.2 | Dark | Down | 37.9 | 265.5 | Up | 10:32:21 - 11:02:21 | -1083 |
Cedarville | 10:47:17 | -51.4 | Dark | Down | 37.0 | 266.8 | Up | 10:32:17 - 11:02:17 | -1089 |
Fall River/Burney | 10:47:18 | -52.4 | Dark | Down | 37.9 | 266.3 | Up | 10:32:18 - 11:02:18 | -1165 |
Susanville | 10:47:15 | -52.1 | Dark | Down | 37.4 | 267.3 | Up | 10:32:15 - 11:02:15 | -1204 |
Gimple | 10:47:14 | -52.3 | Dark | Down | 37.6 | 267.3 | Up | 10:32:14 - 11:02:14 | -1236 |
Greenville | 10:47:15 | -52.4 | Dark | Down | 37.7 | 267.3 | Up | 10:32:15 - 11:02:15 | -1238 |
Portola | 10:47:13 | -52.1 | Dark | Down | 37.3 | 267.9 | Up | 10:32:13 - 11:02:13 | -1256 |
Quincy | 10:47:14 | -52.4 | Dark | Down | 37.7 | 267.4 | Up | 10:32:14 - 11:02:14 | -1256 |
Reno | 10:47:12 | -51.7 | Dark | Down | 36.8 | 268.5 | Up | 10:32:12 - 11:02:12 | -1263 |
Carson City | 10:47:11 | -51.8 | Dark | Down | 36.8 | 268.8 | Up | 10:32:11 - 11:02:11 | -1296 |
Yerington | 10:47:09 | -51.3 | Dark | Down | 36.3 | 269.3 | Up | 10:32:09 - 11:02:09 | -1298 |
Gardnerville | 10:47:10 | -51.8 | Dark | Down | 36.8 | 269.0 | Up | 10:32:10 - 11:02:10 | -1318 |
Hawthorne | 10:47:07 | -51.0 | Dark | Down | 35.9 | 270.0 | Up | 10:32:07 - 11:02:07 | -1327 |
Tonopah | 10:47:03 | -50.0 | Dark | Down | 34.8 | 271.2 | Up | 10:32:03 - 11:02:03 | -1332 |
Lee Vining | 10:47:06 | -51.5 | Dark | Down | 36.3 | 270.1 | Up | 10:32:06 - 11:02:06 | -1394 |
Indian Springs | 10:46:57 | -49.1 | Dark | Down | 33.6 | 273.1 | Up | 10:31:57 - 11:01:57 | -1428 |
Beatty | 10:47:00 | -49.9 | Dark | Down | 34.4 | 272.2 | Up | 10:32:00 - 11:02:00 | -1428 |
Bishop | 10:47:04 | -51.1 | Dark | Down | 35.7 | 271.0 | Up | 10:32:04 - 11:02:04 | -1430 |
Henderson | 10:46:55 | -48.6 | Dark | Down | 33.0 | 273.8 | Up | 10:31:55 - 11:01:55 | -1459 |
Patrick | 10:46:52 | -47.8 | Dark | Down | 32.0 | 274.8 | Up | 10:31:52 - 11:01:52 | -1485 |
DCO | 10:46:50 | -47.2 | Dark | Down | 31.4 | 275.4 | Up | 10:31:50 - 11:01:50 | -1493 |
Lone Pine | 10:47:01 | -51.0 | Dark | Down | 35.5 | 271.7 | Up | 10:32:01 - 11:02:01 | -1493 |
Searchlight/Boulder City | 10:46:53 | -48.6 | Dark | Down | 32.9 | 274.2 | Up | 10:31:53 - 11:01:53 | -1511 |
Kingman/Dolan Springs | 10:46:51 | -47.9 | Dark | Down | 32.2 | 274.8 | Up | 10:31:51 - 11:01:51 | -1512 |
Laughlin/Bullhead City | 10:46:52 | -48.4 | Dark | Down | 32.6 | 274.6 | Up | 10:31:52 - 11:01:52 | -1529 |
Mohave Valley | 10:46:51 | -48.4 | Dark | Down | 32.6 | 274.7 | Up | 10:31:51 - 11:01:51 | -1555 |
Lake Havasu City | 10:46:50 | -48.2 | Dark | Down | 32.3 | 275.1 | Up | 10:31:50 - 11:01:50 | -1586 |
Parker | 10:46:49 | -48.2 | Dark | Down | 32.3 | 275.4 | Up | 10:31:49 - 11:01:49 | -1619 |
Blythe | 10:46:48 | -48.5 | Dark | Down | 32.5 | 275.5 | Up | 10:31:48 - 11:01:48 | -1678 |
CPSLO | 10:47:03 | -53.2 | Dark | Down | 37.5 | 271.2 | Up | 10:32:03 - 11:02:03 | -1691 |
Idyllwild | 10:46:53 | -50.2 | Dark | Down | 34.2 | 274.4 | Up | 10:31:53 - 11:01:53 | -1730 |
Wildwood | 10:46:57 | -51.7 | Dark | Down | 35.8 | 273.2 | Up | 10:31:57 - 11:01:57 | -1750 |
Calipatria | 10:46:49 | -49.3 | Dark | Down | 33.2 | 275.4 | Up | 10:31:49 - 11:01:49 | -1754 |
Yuma | 10:46:47 | -48.6 | Dark | Down | 32.4 | 276.1 | Up | 10:31:47 - 11:01:47 | -1769 |
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 123509, (2019/01/05 10:50UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 14.07 163 Alnath 05:26:17.5 +28:36:23 1.6 8.94 163 54Chi1Ori 05:54:22.7 +20:16:32 5.1 1.56 171 PPM 094925 05:49:12.8 +21:08:09 7.1 0.32 169 PPM 094937 05:49:31.4 +21:18:42 9.5 0.13 170 123509 05:49:49.6 +21:25:20 15.7 170 Positions are for J2000
Event circumstances last updated at 2018/12/04 05:06:09 UT
Marc W. Buie, Southwest Research Institute