Event between (492338) 14FW and star UC4-413-063031 with event index number of 193979
Geocentric closest approach at 2018/03/16 10:50:48 UTC
J2000 position of star is 15:23:00.6 -07:31:16
Equinox of date position of star is 15:23:58.2 -07:35:03
Stellar brightness R=12.3,
use SENSEUP=16
Star is 113 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=20.6
[RECON map]
TNO is 10.8 AU from the Sun
and 10.2 AU from the Earth.
The TNO is moving 6.3
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 169 seconds.
The 1-sigma cross-track error in the shadow position is
978 km.
The sky-plane scale is
7433.4 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=60.3 km assuming a 5% albedo -- 9.6 sec chord
Diameter=24.6 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is CENTAURR
Star training set for 492338, (2018/03/16 10:51UT) Object RA Dec mag sep mel Antares 16:30:31.6 -26:28:15 0.9 24.63 93 27Bet Lib 15:17:59.3 -09:26:56 2.6 2.38 114 PPM 198488 15:22:05.4 -05:53:22 5.4 1.76 113 PPM 198498 15:22:30.8 -06:53:29 7.6 0.78 113 PPM 198522 15:23:25.0 -07:22:16 9.0 0.26 113 492338 15:23:59.1 -07:35:06 12.3 112 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
5.0 sigma about the mid-time.
The median site spacing is 12.4 km
RECON observability=1.0 and success probability=2.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Niwot | 10:58:21 | -25.6 | Dark | Down | 42.3 | 183.6 | Up | 10:43:46 - 11:12:56 | 3835 |
| Oroville | 11:01:26 | -29.7 | Dark | Down | 32.7 | 167.2 | Up | 10:46:51 - 11:16:01 | 3599 |
| Tonasket | 11:01:24 | -29.9 | Dark | Down | 33.0 | 167.1 | Up | 10:46:49 - 11:15:59 | 3586 |
| Okanogan | 11:01:28 | -30.2 | Dark | Down | 33.3 | 166.9 | Up | 10:46:53 - 11:16:03 | 3559 |
| Brewster | 11:01:25 | -30.4 | Dark | Down | 33.5 | 166.7 | Up | 10:46:50 - 11:16:00 | 3534 |
| Manson/Chelan | 11:01:29 | -30.8 | Dark | Down | 33.7 | 166.2 | Up | 10:46:54 - 11:16:04 | 3504 |
| Entiat | 11:01:26 | -30.9 | Dark | Down | 33.9 | 166.1 | Up | 10:46:51 - 11:16:01 | 3487 |
| Wenatchee | 11:01:28 | -31.1 | Dark | Down | 34.1 | 165.9 | Up | 10:46:53 - 11:16:03 | 3467 |
| Pasco | 11:01:12 | -31.2 | Dark | Down | 35.4 | 167.1 | Up | 10:46:37 - 11:15:47 | 3457 |
| PNWRO | 11:01:07 | -31.2 | Dark | Down | 35.7 | 167.3 | Up | 10:46:32 - 11:15:42 | 3454 |
| Ellensburg | 11:01:29 | -31.5 | Dark | Down | 34.5 | 165.6 | Up | 10:46:54 - 11:16:04 | 3431 |
| George/Umatilla | 11:01:11 | -31.5 | Dark | Down | 35.7 | 166.8 | Up | 10:46:36 - 11:15:46 | 3426 |
| Yakima | 11:01:25 | -31.8 | Dark | Down | 34.8 | 165.5 | Up | 10:46:50 - 11:16:00 | 3406 |
| Toppenish/White Swan | 11:01:23 | -31.8 | Dark | Down | 35.1 | 165.6 | Up | 10:46:48 - 11:15:58 | 3401 |
| Goldendale | 11:01:25 | -32.4 | Dark | Down | 35.5 | 165.0 | Up | 10:46:50 - 11:16:00 | 3345 |
| The Dalles | 11:01:26 | -32.7 | Dark | Down | 35.7 | 164.6 | Up | 10:46:51 - 11:16:01 | 3313 |
| Maupin | 11:01:23 | -32.9 | Dark | Down | 36.1 | 164.6 | Up | 10:46:48 - 11:15:58 | 3292 |
| Madras/Culver | 11:01:22 | -33.3 | Dark | Down | 36.6 | 164.4 | Up | 10:46:47 - 11:15:57 | 3255 |
| Redmond | 11:01:19 | -33.5 | Dark | Down | 37.0 | 164.3 | Up | 10:46:44 - 11:15:54 | 3230 |
| Sisters | 11:01:23 | -33.7 | Dark | Down | 36.9 | 163.8 | Up | 10:46:48 - 11:15:58 | 3211 |
| Bend | 11:01:19 | -33.7 | Dark | Down | 37.1 | 164.1 | Up | 10:46:44 - 11:15:54 | 3209 |
| Oregon Observatory | 11:01:21 | -33.9 | Dark | Down | 37.3 | 163.9 | Up | 10:46:46 - 11:15:56 | 3191 |
| North Lake | 11:01:11 | -34.0 | Dark | Down | 38.0 | 164.4 | Up | 10:46:36 - 11:15:46 | 3178 |
| La Pine/Gilchrist | 11:01:20 | -34.1 | Dark | Down | 37.5 | 163.8 | Up | 10:46:45 - 11:15:55 | 3174 |
| Paisley | 11:01:06 | -34.1 | Dark | Down | 38.6 | 164.7 | Up | 10:46:31 - 11:15:41 | 3161 |
| Lakeview | 11:01:01 | -34.3 | Dark | Down | 39.1 | 164.8 | Up | 10:46:26 - 11:15:36 | 3138 |
| Cedarville | 11:00:57 | -34.6 | Dark | Down | 39.8 | 164.8 | Up | 10:46:22 - 11:15:32 | 3105 |
| Chiloquin | 11:01:17 | -34.9 | Dark | Down | 38.5 | 163.1 | Up | 10:46:42 - 11:15:52 | 3083 |
| DCO | 10:59:04 | -33.2 | Dark | Down | 47.1 | 172.5 | Up | 10:44:29 - 11:13:39 | 3077 |
| Klamath Falls | 11:01:15 | -35.1 | Dark | Down | 38.8 | 163.1 | Up | 10:46:40 - 11:15:50 | 3064 |
| Tulelake | 11:01:11 | -35.1 | Dark | Down | 39.1 | 163.4 | Up | 10:46:36 - 11:15:46 | 3063 |
| Patrick | 10:59:13 | -33.6 | Dark | Down | 46.7 | 171.6 | Up | 10:44:38 - 11:13:48 | 3056 |
| Tonopah | 11:00:08 | -34.6 | Dark | Down | 43.7 | 167.7 | Up | 10:45:33 - 11:14:43 | 3039 |
| Henderson | 10:59:31 | -34.1 | Dark | Down | 46.0 | 170.2 | Up | 10:44:56 - 11:14:06 | 3032 |
| Kingman/Dolan Springs | 10:59:13 | -33.9 | Dark | Down | 46.9 | 171.3 | Up | 10:44:38 - 11:13:48 | 3030 |
| Indian Springs | 10:59:41 | -34.3 | Dark | Down | 45.3 | 169.4 | Up | 10:45:06 - 11:14:16 | 3028 |
| Fall River/Burney | 11:01:05 | -35.6 | Dark | Down | 40.0 | 163.2 | Up | 10:46:30 - 11:15:40 | 3006 |
| Susanville | 11:00:55 | -35.5 | Dark | Down | 40.8 | 164.0 | Up | 10:46:20 - 11:15:30 | 3005 |
| Laughlin/Bullhead City | 10:59:19 | -34.2 | Dark | Down | 46.9 | 170.5 | Up | 10:44:44 - 11:13:54 | 2998 |
| Searchlight/Boulder City | 10:59:26 | -34.3 | Dark | Down | 46.5 | 170.1 | Up | 10:44:51 - 11:14:01 | 2997 |
| Reno | 11:00:41 | -35.5 | Dark | Down | 41.8 | 164.8 | Up | 10:46:06 - 11:15:16 | 2992 |
| Yerington | 11:00:32 | -35.4 | Dark | Down | 42.4 | 165.4 | Up | 10:45:57 - 11:15:07 | 2992 |
| Hawthorne | 11:00:24 | -35.3 | Dark | Down | 43.0 | 166.0 | Up | 10:45:49 - 11:14:59 | 2990 |
| Beatty | 10:59:55 | -34.9 | Dark | Down | 44.9 | 168.0 | Up | 10:45:20 - 11:14:30 | 2987 |
| Mohave Valley | 10:59:16 | -34.4 | Dark | Down | 47.1 | 170.5 | Up | 10:44:41 - 11:13:51 | 2980 |
| Gimple | 11:00:55 | -35.8 | Dark | Down | 41.0 | 163.6 | Up | 10:46:20 - 11:15:30 | 2974 |
| Portola | 11:00:49 | -35.7 | Dark | Down | 41.4 | 164.0 | Up | 10:46:14 - 11:15:24 | 2974 |
| Greenville | 11:00:56 | -35.8 | Dark | Down | 41.0 | 163.5 | Up | 10:46:21 - 11:15:31 | 2970 |
| Carson City | 11:00:37 | -35.7 | Dark | Down | 42.1 | 164.7 | Up | 10:46:02 - 11:15:12 | 2969 |
| Lake Havasu City | 10:59:11 | -34.4 | Dark | Down | 47.6 | 170.7 | Up | 10:44:36 - 11:13:46 | 2967 |
| Quincy | 11:00:55 | -36.0 | Dark | Down | 41.2 | 163.5 | Up | 10:46:20 - 11:15:30 | 2956 |
| Gardnerville | 11:00:37 | -35.8 | Dark | Down | 42.4 | 164.7 | Up | 10:46:02 - 11:15:12 | 2955 |
| Parker | 10:59:11 | -34.5 | Dark | Down | 47.9 | 170.7 | Up | 10:44:36 - 11:13:46 | 2945 |
| Bishop | 11:00:14 | -35.8 | Dark | Down | 44.1 | 166.0 | Up | 10:45:39 - 11:14:49 | 2925 |
| Lee Vining | 11:00:26 | -35.9 | Dark | Down | 43.4 | 165.2 | Up | 10:45:51 - 11:15:01 | 2924 |
| Lone Pine | 11:00:06 | -35.9 | Dark | Down | 44.9 | 166.2 | Up | 10:45:31 - 11:14:41 | 2892 |
| Blythe | 10:59:08 | -34.9 | Dark | Down | 48.4 | 170.2 | Up | 10:44:33 - 11:13:43 | 2891 |
| Yuma | 10:59:01 | -35.4 | Dark | Down | 49.3 | 169.9 | Up | 10:44:26 - 11:13:36 | 2824 |
| Calipatria | 10:59:15 | -35.8 | Dark | Down | 48.7 | 168.7 | Up | 10:44:40 - 11:13:50 | 2800 |
| Idyllwild | 10:59:32 | -36.4 | Dark | Down | 47.9 | 167.2 | Up | 10:44:57 - 11:14:07 | 2772 |
| Wildwood | 10:59:55 | -37.6 | Dark | Down | 47.2 | 164.7 | Up | 10:45:20 - 11:14:30 | 2685 |
| CPSLO | 11:00:24 | -38.3 | Dark | Down | 45.6 | 162.4 | Up | 10:45:49 - 11:14:59 | 2649 |
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 492338, (2018/03/16 10:51UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 24.63 93 27Bet Lib 15:17:00.3 -09:22:59 2.6 2.38 114 PPM 198488 15:21:07.5 -05:49:30 5.4 1.76 113 PPM 198498 15:21:32.5 -06:49:37 7.6 0.78 113 PPM 198522 15:22:26.6 -07:18:25 9.0 0.26 113 492338 15:23:00.6 -07:31:16 12.3 113 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:20:59 UT
Marc W. Buie, Southwest Research Institute