Event between 14WT69 and star UC4-571-006944 with event index number of 163352
Geocentric closest approach at 2017/10/20 07:59:42 UTC
J2000 position of star is 03:10:32.3 +24:03:55
Equinox of date position of star is 03:11:33.4 +24:07:49
Stellar brightness R=16.0,
use SENSEUP=128
Star is 159 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=22.6
[RECON map]
TNO is 46.3 AU from the Sun
and 45.4 AU from the Earth.
The TNO is moving 23.0
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 450 seconds.
The 1-sigma cross-track error in the shadow position is
5729 km.
The sky-plane scale is
32954.0 km/arcsec.
The TNO has an absolute magnitude Hv=5.9
Diameter=403.7 km assuming a 5% albedo -- 17.5 sec chord
Diameter=164.8 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is SCATNEAR
Star training set for 14WT69, (2017/10/20 08:00UT) Object RA Dec mag sep mel Aldebaran 04:36:56.6 +16:32:37 0.8 21.37 144 44Zet Per 03:55:15.3 +31:56:06 2.8 12.39 146 52 Ari 03:06:29.6 +25:19:24 6.1 1.66 158 PPM 092225 03:08:54.7 +23:45:19 8.1 0.72 159 PPM 092282 03:12:47.0 +24:03:12 9.1 0.29 158 PPM 092263 03:11:26.7 +24:14:42 10.2 0.12 159 14WT69 03:11:34.9 +24:07:55 16.0 158 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
2.0 sigma about the mid-time.
The median site spacing is 21.7 km
RECON observability=1.0 and success probability=5.8%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Oroville | 08:00:10 | -51.3 | Dark | Down | 61.4 | 143.8 | Up | 07:45:10 - 08:15:10 | 7805 |
| Tonasket | 08:00:11 | -51.6 | Dark | Down | 61.6 | 143.6 | Up | 07:45:11 - 08:15:11 | 7784 |
| Okanogan | 08:00:12 | -51.9 | Dark | Down | 61.8 | 142.9 | Up | 07:45:12 - 08:15:12 | 7757 |
| Brewster | 08:00:12 | -52.2 | Dark | Down | 61.9 | 142.3 | Up | 07:45:12 - 08:15:12 | 7738 |
| Manson/Chelan | 08:00:14 | -52.4 | Dark | Down | 61.9 | 141.4 | Up | 07:45:14 - 08:15:14 | 7729 |
| Entiat | 08:00:15 | -52.7 | Dark | Down | 62.1 | 141.0 | Up | 07:45:15 - 08:15:15 | 7711 |
| Wenatchee | 08:00:16 | -52.9 | Dark | Down | 62.2 | 140.6 | Up | 07:45:16 - 08:15:16 | 7691 |
| Ellensburg | 08:00:17 | -53.3 | Dark | Down | 62.4 | 139.7 | Up | 07:45:17 - 08:15:17 | 7659 |
| Yakima | 08:00:18 | -53.7 | Dark | Down | 62.7 | 139.2 | Up | 07:45:18 - 08:15:18 | 7622 |
| Toppenish/White Swan | 08:00:18 | -53.9 | Dark | Down | 63.0 | 139.2 | Up | 07:45:18 - 08:15:18 | 7598 |
| Goldendale | 08:00:20 | -54.5 | Dark | Down | 63.2 | 137.7 | Up | 07:45:20 - 08:15:20 | 7559 |
| Pasco | 08:00:15 | -54.0 | Dark | Down | 63.6 | 141.3 | Up | 07:45:15 - 08:15:15 | 7552 |
| The Dalles | 08:00:22 | -54.8 | Dark | Down | 63.2 | 136.8 | Up | 07:45:22 - 08:15:22 | 7549 |
| George/Umatilla | 08:00:16 | -54.3 | Dark | Down | 63.8 | 140.4 | Up | 07:45:16 - 08:15:16 | 7527 |
| PNWRO | 08:00:15 | -54.2 | Dark | Down | 63.9 | 141.4 | Up | 07:45:15 - 08:15:15 | 7523 |
| Maupin | 08:00:23 | -55.2 | Dark | Down | 63.6 | 136.4 | Up | 07:45:23 - 08:15:23 | 7507 |
| Madras/Culver | 08:00:25 | -55.7 | Dark | Down | 63.9 | 135.6 | Up | 07:45:25 - 08:15:25 | 7458 |
| Sisters | 08:00:26 | -56.1 | Dark | Down | 63.9 | 134.3 | Up | 07:45:26 - 08:15:26 | 7440 |
| Redmond | 08:00:25 | -56.1 | Dark | Down | 64.2 | 135.0 | Up | 07:45:25 - 08:15:25 | 7426 |
| Bend | 08:00:26 | -56.3 | Dark | Down | 64.2 | 134.4 | Up | 07:45:26 - 08:15:26 | 7410 |
| Oregon Observatory | 08:00:26 | -56.5 | Dark | Down | 64.3 | 133.9 | Up | 07:45:26 - 08:15:26 | 7398 |
| La Pine/Gilchrist | 08:00:27 | -56.7 | Dark | Down | 64.4 | 133.5 | Up | 07:45:27 - 08:15:27 | 7381 |
| North Lake | 08:00:26 | -57.1 | Dark | Down | 65.0 | 133.9 | Up | 07:45:26 - 08:15:26 | 7322 |
| Chiloquin | 08:00:31 | -57.8 | Dark | Down | 65.0 | 131.2 | Up | 07:45:31 - 08:15:31 | 7287 |
| Paisley | 08:00:27 | -57.6 | Dark | Down | 65.6 | 133.7 | Up | 07:45:27 - 08:15:27 | 7260 |
| Klamath Falls | 08:00:31 | -58.2 | Dark | Down | 65.3 | 130.8 | Up | 07:45:31 - 08:15:31 | 7252 |
| Tulelake | 08:00:31 | -58.4 | Dark | Down | 65.6 | 130.9 | Up | 07:45:31 - 08:15:31 | 7218 |
| Lakeview | 08:00:27 | -58.1 | Dark | Down | 66.1 | 133.2 | Up | 07:45:27 - 08:15:27 | 7206 |
| Cedarville | 08:00:27 | -58.7 | Dark | Down | 66.6 | 132.5 | Up | 07:45:27 - 08:15:27 | 7138 |
| Fall River/Burney | 08:00:32 | -59.3 | Dark | Down | 66.2 | 129.5 | Up | 07:45:32 - 08:15:32 | 7129 |
| Susanville | 08:00:32 | -59.9 | Dark | Down | 67.1 | 129.6 | Up | 07:45:32 - 08:15:32 | 7046 |
| Greenville | 08:00:33 | -60.2 | Dark | Down | 67.1 | 128.6 | Up | 07:45:33 - 08:15:33 | 7028 |
| Gimple | 08:00:32 | -60.2 | Dark | Down | 67.1 | 128.8 | Up | 07:45:32 - 08:15:32 | 7025 |
| Quincy | 08:00:33 | -60.4 | Dark | Down | 67.2 | 128.3 | Up | 07:45:33 - 08:15:33 | 7008 |
| Portola | 08:00:32 | -60.5 | Dark | Down | 67.6 | 128.9 | Up | 07:45:32 - 08:15:32 | 6982 |
| Reno | 08:00:31 | -60.7 | Dark | Down | 68.1 | 129.5 | Up | 07:45:31 - 08:15:31 | 6936 |
| Carson City | 08:00:31 | -61.0 | Dark | Down | 68.4 | 128.9 | Up | 07:45:31 - 08:15:31 | 6901 |
| Gardnerville | 08:00:32 | -61.3 | Dark | Down | 68.5 | 128.5 | Up | 07:45:32 - 08:15:32 | 6875 |
| Yerington | 08:00:30 | -61.1 | Dark | Down | 68.9 | 129.7 | Up | 07:45:30 - 08:15:30 | 6862 |
| Hawthorne | 08:00:28 | -61.5 | Dark | Down | 69.5 | 129.8 | Up | 07:45:28 - 08:15:28 | 6800 |
| Lee Vining | 08:00:32 | -62.1 | Dark | Down | 69.5 | 127.7 | Up | 07:45:32 - 08:15:32 | 6760 |
| Tonopah | 08:00:25 | -61.7 | Dark | Down | 70.6 | 131.6 | Up | 07:45:25 - 08:15:25 | 6712 |
| Bishop | 08:00:30 | -62.6 | Dark | Down | 70.3 | 127.8 | Up | 07:45:30 - 08:15:30 | 6679 |
| Niwot | 07:59:39 | -56.1 | Dark | Down | 73.6 | 167.2 | Up | 07:44:39 - 08:14:39 | 6599 |
| Lone Pine | 08:00:31 | -63.3 | Dark | Down | 71.0 | 126.7 | Up | 07:45:31 - 08:15:31 | 6593 |
| Beatty | 08:00:26 | -62.8 | Dark | Down | 71.6 | 130.1 | Up | 07:45:26 - 08:15:26 | 6583 |
| CPSLO | 08:00:41 | -65.0 | Dark | Down | 70.0 | 119.0 | Up | 07:45:41 - 08:15:41 | 6546 |
| Indian Springs | 08:00:22 | -62.8 | Dark | Down | 72.5 | 131.7 | Up | 07:45:22 - 08:15:22 | 6518 |
| Henderson | 08:00:21 | -63.2 | Dark | Down | 73.3 | 132.0 | Up | 07:45:21 - 08:15:21 | 6443 |
| Searchlight/Boulder City | 08:00:22 | -63.7 | Dark | Down | 73.7 | 130.7 | Up | 07:45:22 - 08:15:22 | 6383 |
| Wildwood | 08:00:37 | -65.8 | Dark | Down | 72.0 | 119.4 | Up | 07:45:37 - 08:15:37 | 6359 |
| Patrick | 08:00:18 | -63.4 | Dark | Down | 74.4 | 133.1 | Up | 07:45:18 - 08:15:18 | 6347 |
| Laughlin/Bullhead City | 08:00:21 | -63.9 | Dark | Down | 74.1 | 130.7 | Up | 07:45:21 - 08:15:21 | 6343 |
| Kingman/Dolan Springs | 08:00:20 | -63.7 | Dark | Down | 74.4 | 132.1 | Up | 07:45:20 - 08:15:20 | 6330 |
| Mohave Valley | 08:00:21 | -64.1 | Dark | Down | 74.3 | 130.0 | Up | 07:45:21 - 08:15:21 | 6315 |
| DCO | 08:00:16 | -63.5 | Dark | Down | 75.0 | 134.2 | Up | 07:45:16 - 08:15:16 | 6295 |
| Lake Havasu City | 08:00:21 | -64.4 | Dark | Down | 74.7 | 129.5 | Up | 07:45:21 - 08:15:21 | 6267 |
| Idyllwild | 08:00:31 | -65.8 | Dark | Down | 73.6 | 122.0 | Up | 07:45:31 - 08:15:31 | 6263 |
| Parker | 08:00:22 | -64.7 | Dark | Down | 74.9 | 128.6 | Up | 07:45:22 - 08:15:22 | 6230 |
| Blythe | 08:00:24 | -65.3 | Dark | Down | 75.1 | 126.3 | Up | 07:45:24 - 08:15:24 | 6185 |
| Calipatria | 08:00:27 | -66.0 | Dark | Down | 74.7 | 122.7 | Up | 07:45:27 - 08:15:27 | 6164 |
| Yuma | 08:00:25 | -66.2 | Dark | Down | 75.6 | 123.3 | Up | 07:45:25 - 08:15:25 | 6092 |
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 14WT69, (2017/10/20 08:00UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 21.37 144 44Zet Per 03:54:07.9 +31:53:01 2.8 12.39 146 52 Ari 03:05:26.7 +25:15:19 6.1 1.66 158 PPM 092225 03:07:52.3 +23:41:16 8.1 0.72 159 PPM 092282 03:11:44.3 +23:59:13 9.1 0.29 158 PPM 092263 03:10:24.0 +24:10:42 10.2 0.12 159 14WT69 03:10:32.3 +24:03:55 16.0 159 Positions are for J2000
Event circumstances last updated at 2017/05/16 18:34:22 UT
Marc W. Buie, Southwest Research Institute