Event between 12UR177 and star GA1200:00379485 with event index number of 314067
Geocentric closest approach at 2018/11/08 11:19:11 UTC
J2000 position of star is 02:19:31.1 +30:30:23
Equinox of date position of star is 02:20:37.5 +30:35:32
Stellar brightness G=13.6,
use SENSEUP=64
Star is 156 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=24.2
[RECON map]
TNO is 42.0 AU from the Sun
and 41.1 AU from the Earth.
The TNO is moving 24.8
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 188 seconds.
The 1-sigma cross-track error in the shadow position is
2078 km.
The sky-plane scale is
29785.6 km/arcsec.
The TNO has an absolute magnitude Hv=8.0
Diameter=154.2 km assuming a 5% albedo -- 6.2 sec chord
Diameter=62.9 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is SCATNEAR
Star training set for 12UR177, (2018/11/08 11:19UT) Object RA Dec mag sep mel Aldebaran 04:37:00.3 +16:32:45 0.8 34.08 166 Hamal 02:08:14.4 +23:33:03 2.0 7.56 157 6 Tri 02:13:28.3 +30:23:25 5.8 1.55 155 PPM 067218 02:21:10.9 +30:16:25 7.8 0.34 156 PPM 067212 02:20:50.6 +30:36:52 11.5 0.05 156 12UR177 02:20:37.6 +30:35:32 13.6 156 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
4.8 sigma about the mid-time.
The median site spacing is 22.9 km
RECON observability=1.0 and success probability=0.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 11:16:07 | -35.7 | Dark | Down | 40.2 | 271.6 | Up | 11:01:07 - 11:31:07 | -7287 |
| Summerland | 11:16:08 | -36.0 | Dark | Down | 40.5 | 271.4 | Up | 11:01:08 - 11:31:08 | -7297 |
| Penticton | 11:16:07 | -36.0 | Dark | Down | 40.3 | 271.8 | Up | 11:01:07 - 11:31:07 | -7327 |
| Okanagan Falls | 11:16:07 | -36.0 | Dark | Down | 40.3 | 271.9 | Up | 11:01:07 - 11:31:07 | -7348 |
| Oliver | 11:16:06 | -36.1 | Dark | Down | 40.3 | 272.1 | Up | 11:01:06 - 11:31:06 | -7364 |
| Anarchist Mountain Observatory | 11:16:06 | -36.0 | Dark | Down | 40.2 | 272.4 | Up | 11:01:06 - 11:31:06 | -7379 |
| Oroville | 11:16:06 | -36.1 | Dark | Down | 40.2 | 272.4 | Up | 11:01:06 - 11:31:06 | -7388 |
| Tonasket | 11:16:05 | -36.1 | Dark | Down | 40.2 | 272.6 | Up | 11:01:05 - 11:31:05 | -7413 |
| Okanogan | 11:16:05 | -36.3 | Dark | Down | 40.3 | 272.7 | Up | 11:01:05 - 11:31:05 | -7451 |
| Brewster | 11:16:05 | -36.5 | Dark | Down | 40.4 | 272.8 | Up | 11:01:05 - 11:31:05 | -7483 |
| Manson/Chelan | 11:16:06 | -36.8 | Dark | Down | 40.7 | 272.7 | Up | 11:01:06 - 11:31:06 | -7511 |
| Entiat | 11:16:05 | -36.9 | Dark | Down | 40.7 | 272.9 | Up | 11:01:05 - 11:31:05 | -7535 |
| Wenatchee | 11:16:05 | -37.1 | Dark | Down | 40.7 | 273.0 | Up | 11:01:05 - 11:31:05 | -7564 |
| Ellensburg | 11:16:05 | -37.3 | Dark | Down | 40.9 | 273.2 | Up | 11:01:05 - 11:31:05 | -7612 |
| Yakima | 11:16:04 | -37.5 | Dark | Down | 40.9 | 273.6 | Up | 11:01:04 - 11:31:04 | -7655 |
| Pasco | 11:16:01 | -36.6 | Dark | Down | 39.9 | 274.8 | Up | 11:01:01 - 11:31:01 | -7665 |
| Toppenish/White Swan | 11:16:04 | -37.4 | Dark | Down | 40.7 | 273.9 | Up | 11:01:04 - 11:31:04 | -7675 |
| PNWRO | 11:16:01 | -36.5 | Dark | Down | 39.7 | 275.2 | Up | 11:01:01 - 11:31:01 | -7687 |
| George/Umatilla | 11:16:01 | -36.9 | Dark | Down | 40.0 | 275.0 | Up | 11:01:01 - 11:31:01 | -7705 |
| Goldendale | 11:16:04 | -37.9 | Dark | Down | 41.0 | 274.1 | Up | 11:01:04 - 11:31:04 | -7741 |
| The Dalles | 11:16:04 | -38.2 | Dark | Down | 41.2 | 274.0 | Up | 11:01:04 - 11:31:04 | -7772 |
| Maupin | 11:16:03 | -38.2 | Dark | Down | 41.1 | 274.4 | Up | 11:01:03 - 11:31:03 | -7815 |
| Madras/Culver | 11:16:04 | -38.4 | Dark | Down | 41.1 | 274.9 | Up | 11:01:04 - 11:31:04 | -7874 |
| Redmond | 11:16:03 | -38.5 | Dark | Down | 41.1 | 275.2 | Up | 11:01:03 - 11:31:03 | -7913 |
| Sisters | 11:16:04 | -38.8 | Dark | Down | 41.4 | 274.9 | Up | 11:01:04 - 11:31:04 | -7917 |
| Bend | 11:16:03 | -38.7 | Dark | Down | 41.2 | 275.3 | Up | 11:01:03 - 11:31:03 | -7938 |
| Oregon Observatory | 11:16:04 | -38.8 | Dark | Down | 41.3 | 275.3 | Up | 11:01:04 - 11:31:04 | -7959 |
| Niwot | 11:15:31 | -27.5 | Dark | Down | 28.8 | 287.1 | Low | 11:00:31 - 11:30:31 | -7959 |
| La Pine/Gilchrist | 11:16:03 | -38.9 | Dark | Down | 41.3 | 275.5 | Up | 11:01:03 - 11:31:03 | -7982 |
| North Lake | 11:16:02 | -38.6 | Dark | Down | 40.8 | 276.2 | Up | 11:01:02 - 11:31:02 | -8018 |
| Paisley | 11:16:00 | -38.5 | Dark | Down | 40.5 | 276.9 | Up | 11:01:00 - 11:31:00 | -8071 |
| Chiloquin | 11:16:03 | -39.5 | Dark | Down | 41.4 | 276.2 | Up | 11:01:03 - 11:31:03 | -8108 |
| Lakeview | 11:15:59 | -38.5 | Dark | Down | 40.3 | 277.4 | Up | 11:00:59 - 11:30:59 | -8122 |
| Klamath Falls | 11:16:02 | -39.5 | Dark | Down | 41.4 | 276.6 | Up | 11:01:02 - 11:31:02 | -8144 |
| Tulelake | 11:16:01 | -39.3 | Dark | Down | 41.1 | 277.0 | Up | 11:01:01 - 11:31:01 | -8167 |
| Cedarville | 11:15:58 | -38.5 | Dark | Down | 40.1 | 278.1 | Up | 11:00:58 - 11:30:58 | -8189 |
| Fall River/Burney | 11:16:00 | -39.5 | Dark | Down | 40.9 | 277.8 | Up | 11:01:00 - 11:31:00 | -8264 |
| Susanville | 11:15:58 | -39.1 | Dark | Down | 40.3 | 278.8 | Up | 11:00:58 - 11:30:58 | -8318 |
| Gimple | 11:15:58 | -39.3 | Dark | Down | 40.4 | 278.9 | Up | 11:00:58 - 11:30:58 | -8352 |
| Greenville | 11:15:58 | -39.4 | Dark | Down | 40.5 | 278.8 | Up | 11:00:58 - 11:30:58 | -8353 |
| Quincy | 11:15:58 | -39.4 | Dark | Down | 40.4 | 279.0 | Up | 11:00:58 - 11:30:58 | -8375 |
| Portola | 11:15:57 | -39.1 | Dark | Down | 40.1 | 279.4 | Up | 11:00:57 - 11:30:57 | -8379 |
| Reno | 11:15:56 | -38.6 | Dark | Down | 39.5 | 279.9 | Up | 11:00:56 - 11:30:56 | -8395 |
| Carson City | 11:15:55 | -38.7 | Dark | Down | 39.4 | 280.2 | Up | 11:00:55 - 11:30:55 | -8433 |
| Yerington | 11:15:54 | -38.2 | Dark | Down | 38.9 | 280.7 | Up | 11:00:54 - 11:30:54 | -8441 |
| Gardnerville | 11:15:55 | -38.7 | Dark | Down | 39.4 | 280.4 | Up | 11:00:55 - 11:30:55 | -8459 |
| Hawthorne | 11:15:52 | -37.9 | Dark | Down | 38.4 | 281.3 | Up | 11:00:52 - 11:30:52 | -8480 |
| Tonopah | 11:15:49 | -36.9 | Dark | Down | 37.3 | 282.4 | Up | 11:00:49 - 11:30:49 | -8499 |
| Lee Vining | 11:15:53 | -38.4 | Dark | Down | 38.7 | 281.5 | Up | 11:00:53 - 11:30:53 | -8551 |
| Bishop | 11:15:50 | -37.9 | Dark | Down | 38.0 | 282.3 | Up | 11:00:50 - 11:30:50 | -8600 |
| Beatty | 11:15:47 | -36.7 | Dark | Down | 36.7 | 283.4 | Up | 11:00:47 - 11:30:47 | -8613 |
| Indian Springs | 11:15:44 | -35.9 | Dark | Down | 35.7 | 284.2 | Up | 11:00:44 - 11:30:44 | -8622 |
| Henderson | 11:15:43 | -35.4 | Dark | Down | 35.1 | 284.8 | Up | 11:00:43 - 11:30:43 | -8662 |
| Lone Pine | 11:15:49 | -37.7 | Dark | Down | 37.6 | 283.1 | Up | 11:00:49 - 11:30:49 | -8675 |
| Patrick | 11:15:40 | -34.5 | Dark | Down | 34.0 | 285.7 | Up | 11:00:40 - 11:30:40 | -8700 |
| DCO | 11:15:39 | -34.0 | Dark | Down | 33.4 | 286.2 | Up | 11:00:39 - 11:30:39 | -8714 |
| Searchlight/Boulder City | 11:15:42 | -35.4 | Dark | Down | 34.9 | 285.3 | Up | 11:00:42 - 11:30:42 | -8722 |
| Kingman/Dolan Springs | 11:15:40 | -34.7 | Dark | Down | 34.1 | 285.8 | Up | 11:00:40 - 11:30:40 | -8729 |
| Laughlin/Bullhead City | 11:15:41 | -35.1 | Dark | Down | 34.5 | 285.6 | Up | 11:00:41 - 11:30:41 | -8744 |
| Mohave Valley | 11:15:41 | -35.1 | Dark | Down | 34.5 | 285.8 | Up | 11:00:41 - 11:30:41 | -8773 |
| Lake Havasu City | 11:15:40 | -34.9 | Dark | Down | 34.1 | 286.2 | Up | 11:00:40 - 11:30:40 | -8809 |
| Parker | 11:15:40 | -34.9 | Dark | Down | 34.0 | 286.4 | Up | 11:00:40 - 11:30:40 | -8846 |
| CPSLO | 11:15:54 | -40.0 | Dark | Down | 39.3 | 282.9 | Up | 11:00:54 - 11:30:54 | -8870 |
| Blythe | 11:15:40 | -35.2 | Dark | Down | 34.1 | 286.6 | Up | 11:00:40 - 11:30:40 | -8910 |
| Idyllwild | 11:15:44 | -36.9 | Dark | Down | 35.8 | 285.7 | Up | 11:00:44 - 11:30:44 | -8951 |
| Wildwood | 11:15:49 | -38.5 | Dark | Down | 37.4 | 284.7 | Up | 11:00:49 - 11:30:49 | -8956 |
| Calipatria | 11:15:42 | -36.0 | Dark | Down | 34.7 | 286.6 | Up | 11:00:42 - 11:30:42 | -8986 |
| Yuma | 11:15:40 | -35.3 | Dark | Down | 33.9 | 287.2 | Up | 11:00:40 - 11:30:40 | -9009 |
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 12UR177, (2018/11/08 11:19UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 34.08 166 Hamal 02:07:10.7 +23:27:42 2.0 7.56 157 6 Tri 02:12:22.2 +30:18:09 5.8 1.55 155 PPM 067218 02:20:04.5 +30:11:16 7.8 0.34 156 PPM 067212 02:19:44.1 +30:31:43 11.5 0.05 156 12UR177 02:19:31.1 +30:30:23 13.6 156 Positions are for J2000
Event circumstances last updated at 2018/10/23 20:42:36 UT
Marc W. Buie, Southwest Research Institute