Event between 00WT169 and star GA1120:01741524 with event index number of 231169
Geocentric closest approach at 2019/12/21 11:01:15 UTC
J2000 position of star is 06:04:22.8 +22:50:20
Equinox of date position of star is 06:05:34.2 +22:50:12
Stellar brightness G=12.8,
use SENSEUP=32
Star is 118 degrees from the moon.
Moon is 25% illuminated.
TNO apparent brightness V=22.6
[RECON map]
TNO is 45.1 AU from the Sun
and 44.1 AU from the Earth.
The TNO is moving 25.9
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 306 seconds.
The 1-sigma cross-track error in the shadow position is
1627 km.
The sky-plane scale is
31972.7 km/arcsec.
The TNO has an absolute magnitude Hv=6.1
Diameter=361.4 km assuming a 5% albedo -- 14.0 sec chord
Diameter=147.5 km assuming a 30% albedo -- 5.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 00WT169, (2019/12/21 11:01UT) Object RA Dec mag sep mel Betelgeuse 05:56:15.2 +07:24:33 0.4 15.59 120 Alhena 06:38:51.9 +16:22:50 1.9 10.15 110 1 Gem 06:05:20.1 +23:15:38 4.2 0.43 118 PPM 095417 06:08:19.7 +23:03:01 8.4 0.67 117 PPM 095366 06:06:42.5 +23:00:08 9.3 0.31 118 00WT169 06:05:35.4 +22:50:11 12.8 118 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
2.9 sigma about the mid-time.
The median site spacing is 19.9 km
RECON observability=1.0 and success probability=19.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 10:59:27 | -45.6 | Dark | Up | 46.3 | 248.2 | Up | 10:44:27 - 11:14:27 | 2541 |
| Summerland | 10:59:26 | -45.9 | Dark | Up | 46.6 | 248.2 | Up | 10:44:26 - 11:14:26 | 2508 |
| Penticton | 10:59:26 | -45.8 | Dark | Up | 46.6 | 248.4 | Up | 10:44:26 - 11:14:26 | 2505 |
| Okanagan Falls | 10:59:26 | -45.9 | Dark | Up | 46.6 | 248.6 | Up | 10:44:26 - 11:14:26 | 2487 |
| Oliver | 10:59:25 | -46.0 | Dark | Up | 46.7 | 248.8 | Up | 10:44:25 - 11:14:25 | 2473 |
| Anarchist Mountain Observatory | 10:59:24 | -45.9 | Dark | Up | 46.6 | 249.1 | Up | 10:44:24 - 11:14:24 | 2461 |
| Oroville | 10:59:24 | -46.0 | Dark | Up | 46.7 | 249.1 | Up | 10:44:24 - 11:14:24 | 2453 |
| Tonasket | 10:59:24 | -46.0 | Dark | Up | 46.8 | 249.4 | Up | 10:44:24 - 11:14:24 | 2432 |
| Okanogan | 10:59:23 | -46.2 | Dark | Up | 47.0 | 249.5 | Up | 10:44:23 - 11:14:23 | 2399 |
| Brewster | 10:59:23 | -46.5 | Dark | Up | 47.2 | 249.6 | Up | 10:44:23 - 11:14:23 | 2370 |
| Manson/Chelan | 10:59:24 | -46.8 | Dark | Up | 47.5 | 249.5 | Up | 10:44:24 - 11:14:24 | 2343 |
| Wenatchee | 10:59:23 | -47.0 | Dark | Up | 47.8 | 249.8 | Up | 10:44:23 - 11:14:23 | 2296 |
| Ellensburg | 10:59:23 | -47.3 | Dark | Up | 48.1 | 250.0 | Up | 10:44:23 - 11:14:23 | 2253 |
| Yakima | 10:59:22 | -47.4 | Dark | Up | 48.2 | 250.4 | Up | 10:44:22 - 11:14:22 | 2215 |
| Pasco | 10:59:18 | -46.6 | Dark | Up | 47.4 | 252.1 | Up | 10:44:18 - 11:14:18 | 2215 |
| Toppenish/White Swan | 10:59:21 | -47.4 | Dark | Up | 48.2 | 250.8 | Up | 10:44:21 - 11:14:21 | 2199 |
| PNWRO | 10:59:17 | -46.5 | Dark | Up | 47.3 | 252.6 | Up | 10:44:17 - 11:14:17 | 2196 |
| Goldendale | 10:59:21 | -47.8 | Dark | Up | 48.7 | 250.9 | Up | 10:44:21 - 11:14:21 | 2138 |
| The Dalles | 10:59:21 | -48.1 | Dark | Up | 49.0 | 250.8 | Up | 10:44:21 - 11:14:21 | 2110 |
| Maupin | 10:59:20 | -48.2 | Dark | Up | 49.0 | 251.4 | Up | 10:44:20 - 11:14:20 | 2072 |
| Madras/Culver | 10:59:19 | -48.3 | Dark | Up | 49.2 | 251.9 | Up | 10:44:19 - 11:14:19 | 2020 |
| Redmond | 10:59:18 | -48.5 | Dark | Up | 49.4 | 252.3 | Up | 10:44:18 - 11:14:18 | 1985 |
| SwRI | 10:58:36 | -37.4 | Dark | Up | 38.6 | 268.8 | Up | 10:43:36 - 11:13:36 | 1982 |
| Sisters | 10:59:19 | -48.7 | Dark | Up | 49.7 | 251.9 | Up | 10:44:19 - 11:14:19 | 1978 |
| Bend | 10:59:18 | -48.6 | Dark | Up | 49.5 | 252.4 | Up | 10:44:18 - 11:14:18 | 1961 |
| Oregon Observatory | 10:59:18 | -48.8 | Dark | Up | 49.7 | 252.5 | Up | 10:44:18 - 11:14:18 | 1942 |
| La Pine/Gilchrist | 10:59:18 | -48.9 | Dark | Up | 49.8 | 252.6 | Up | 10:44:18 - 11:14:18 | 1921 |
| North Lake | 10:59:15 | -48.6 | Dark | Up | 49.5 | 253.7 | Up | 10:44:15 - 11:14:15 | 1892 |
| Paisley | 10:59:14 | -48.4 | Dark | Up | 49.4 | 254.6 | Up | 10:44:14 - 11:14:14 | 1847 |
| Chiloquin | 10:59:17 | -49.4 | Dark | Up | 50.4 | 253.6 | Up | 10:44:17 - 11:14:17 | 1806 |
| Lakeview | 10:59:12 | -48.4 | Dark | Up | 49.4 | 255.4 | Up | 10:44:12 - 11:14:12 | 1803 |
| Klamath Falls | 10:59:15 | -49.4 | Dark | Up | 50.4 | 254.0 | Up | 10:44:15 - 11:14:15 | 1775 |
| Tulelake | 10:59:14 | -49.3 | Dark | Up | 50.3 | 254.6 | Up | 10:44:14 - 11:14:14 | 1755 |
| Cedarville | 10:59:10 | -48.4 | Dark | Up | 49.4 | 256.3 | Up | 10:44:10 - 11:14:10 | 1743 |
| Fall River/Burney | 10:59:12 | -49.4 | Dark | Up | 50.5 | 255.7 | Up | 10:44:12 - 11:14:12 | 1668 |
| Susanville | 10:59:09 | -49.0 | Dark | Up | 50.1 | 257.1 | Up | 10:44:09 - 11:14:09 | 1624 |
| Gimple | 10:59:10 | -49.2 | Dark | Up | 50.3 | 257.3 | Up | 10:44:10 - 11:14:10 | 1591 |
| Greenville | 10:59:10 | -49.3 | Dark | Up | 50.3 | 257.2 | Up | 10:44:10 - 11:14:10 | 1590 |
| Quincy | 10:59:09 | -49.3 | Dark | Up | 50.4 | 257.4 | Up | 10:44:09 - 11:14:09 | 1570 |
| Portola | 10:59:08 | -49.0 | Dark | Up | 50.1 | 258.0 | Up | 10:44:08 - 11:14:08 | 1569 |
| Reno | 10:59:06 | -48.5 | Dark | Up | 49.6 | 258.8 | Up | 10:44:06 - 11:14:06 | 1558 |
| Carson City | 10:59:05 | -48.6 | Dark | Up | 49.7 | 259.2 | Up | 10:44:05 - 11:14:05 | 1523 |
| Yerington | 10:59:03 | -48.1 | Dark | Up | 49.2 | 260.0 | Up | 10:44:03 - 11:14:03 | 1519 |
| Gardnerville | 10:59:04 | -48.6 | Dark | Up | 49.7 | 259.6 | Up | 10:44:04 - 11:14:04 | 1500 |
| Hawthorne | 10:59:01 | -47.8 | Dark | Up | 48.9 | 260.9 | Up | 10:44:01 - 11:14:01 | 1486 |
| Tonopah | 10:58:57 | -46.7 | Dark | Up | 47.9 | 262.5 | Up | 10:43:57 - 11:13:57 | 1474 |
| Lee Vining | 10:59:01 | -48.2 | Dark | Up | 49.4 | 261.2 | Up | 10:44:01 - 11:14:01 | 1418 |
| Bishop | 10:58:58 | -47.7 | Dark | Up | 48.9 | 262.4 | Up | 10:43:58 - 11:13:58 | 1376 |
| Beatty | 10:58:54 | -46.5 | Dark | Up | 47.7 | 264.0 | Up | 10:43:54 - 11:13:54 | 1372 |
| Indian Springs | 10:58:50 | -45.6 | Dark | Up | 46.9 | 265.1 | Up | 10:43:50 - 11:13:50 | 1367 |
| Henderson | 10:58:48 | -45.1 | Dark | Up | 46.4 | 266.1 | Up | 10:43:48 - 11:13:48 | 1333 |
| Lone Pine | 10:58:56 | -47.5 | Dark | Up | 48.7 | 263.5 | Up | 10:43:56 - 11:13:56 | 1309 |
| Patrick | 10:58:44 | -44.2 | Dark | Up | 45.5 | 267.5 | Up | 10:43:44 - 11:13:44 | 1300 |
| Searchlight/Boulder City | 10:58:46 | -45.1 | Dark | Up | 46.3 | 266.8 | Up | 10:43:46 - 11:13:46 | 1277 |
| Kingman/Dolan Springs | 10:58:44 | -44.4 | Dark | Up | 45.7 | 267.6 | Up | 10:43:44 - 11:13:44 | 1273 |
| Laughlin/Bullhead City | 10:58:45 | -44.8 | Dark | Up | 46.1 | 267.3 | Up | 10:43:45 - 11:13:45 | 1257 |
| Mohave Valley | 10:58:44 | -44.8 | Dark | Up | 46.1 | 267.6 | Up | 10:43:44 - 11:13:44 | 1230 |
| Lake Havasu City | 10:58:43 | -44.6 | Dark | Up | 45.9 | 268.1 | Up | 10:43:43 - 11:13:43 | 1197 |
| George/Scottsdale | 10:58:36 | -42.6 | Dark | Up | 43.9 | 270.3 | Up | 10:43:36 - 11:13:36 | 1188 |
| Parker | 10:58:43 | -44.6 | Dark | Up | 45.9 | 268.5 | Up | 10:43:43 - 11:13:43 | 1162 |
| CPSLO | 10:59:00 | -49.7 | Dark | Up | 51.0 | 263.2 | Up | 10:44:00 - 11:14:00 | 1114 |
| Blythe | 10:58:42 | -44.8 | Dark | Up | 46.2 | 268.9 | Up | 10:43:42 - 11:13:42 | 1101 |
| Idyllwild | 10:58:47 | -46.6 | Dark | Up | 47.9 | 267.5 | Up | 10:43:47 - 11:13:47 | 1056 |
| Wildwood | 10:58:53 | -48.1 | Dark | Up | 49.4 | 266.0 | Up | 10:43:53 - 11:13:53 | 1043 |
| Calipatria | 10:58:44 | -45.6 | Dark | Up | 46.9 | 268.9 | Up | 10:43:44 - 11:13:44 | 1026 |
| Yuma | 10:58:41 | -44.8 | Dark | Up | 46.2 | 269.8 | Up | 10:43:41 - 11:13:41 | 1007 |
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 00WT169, (2019/12/21 11:01UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 15.59 120 Alhena 06:37:42.8 +16:23:57 1.9 10.15 110 1 Gem 06:04:07.2 +23:15:46 4.2 0.43 118 PPM 095417 06:07:06.9 +23:03:14 8.4 0.67 117 PPM 095366 06:05:29.8 +23:00:18 9.3 0.31 118 00WT169 06:04:22.8 +22:50:20 12.8 118 Positions are for J2000
Event circumstances last updated at 2019/08/16 19:14:30 UT
Marc W. Buie, Southwest Research Institute