Event between 13UE15 and star UC4-587-013099 with event index number of 158415
Geocentric closest approach at 2017/09/06 08:06:14 UTC
J2000 position of star is 04:44:25.9 +27:14:18
Equinox of date position of star is 04:45:30.6 +27:16:10
Stellar brightness R=16.4,
use SENSEUP=128
Star is 89 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=22.2
[RECON map]
TNO is 21.9 AU from the Sun
and 21.9 AU from the Earth.
The TNO is moving 7.8
km/sec on the sky relative to the star, or,
1.8 arcsec/hr.
The 1-sigma error in the time of the event is 351 seconds.
The 1-sigma cross-track error in the shadow position is
1433 km.
The sky-plane scale is
15866.2 km/arcsec.
The TNO has an absolute magnitude Hv=8.5
Diameter=121.9 km assuming a 5% albedo -- 15.5 sec chord
Diameter=49.8 km assuming a 30% albedo -- 6.3 sec chord
Dynamical classification is CENTAURR
Star training set for 13UE15, (2017/09/06 08:06UT) Object RA Dec mag sep mel Aldebaran 04:36:56.2 +16:32:36 0.8 10.91 85 3Iot Aur 04:58:08.9 +33:11:33 2.7 6.52 92 PPM 093690 04:42:26.3 +28:38:52 5.8 1.54 88 PPM 093795 04:50:11.3 +27:02:28 8.5 1.06 90 PPM 093724 04:44:41.6 +27:43:05 8.9 0.48 89 PPM 093722 04:44:33.0 +27:03:32 10.1 0.30 89 13UE15 04:45:31.8 +27:16:12 16.4 89 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
2.6 sigma about the mid-time.
The median site spacing is 8.8 km
RECON observability=0.9 and success probability=0.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Manson/Chelan | 08:03:08 | -35.8 | Dark | Up | 23.1 | 74.4 | Low | 07:48:08 - 08:18:08 | 8082 |
| Entiat | 08:03:03 | -36.0 | Dark | Up | 23.0 | 74.2 | Low | 07:48:03 - 08:18:03 | 8081 |
| Ellensburg | 08:02:58 | -36.7 | Dark | Up | 22.6 | 73.7 | Low | 07:47:58 - 08:17:58 | 8080 |
| Wenatchee | 08:03:00 | -36.3 | Dark | Up | 22.9 | 74.0 | Low | 07:48:00 - 08:18:00 | 8080 |
| The Dalles | 08:02:40 | -38.1 | Dark | Up | 21.7 | 72.7 | Low | 07:47:40 - 08:17:40 | 8076 |
| Oroville | 08:03:24 | -34.7 | Dark | Up | 23.9 | 75.3 | Low | 07:48:24 - 08:18:24 | 8074 |
| Yakima | 08:02:49 | -37.1 | Dark | Up | 22.5 | 73.5 | Low | 07:47:49 - 08:17:49 | 8074 |
| Brewster | 08:03:10 | -35.6 | Dark | Up | 23.4 | 74.7 | Low | 07:48:10 - 08:18:10 | 8073 |
| Tonasket | 08:03:20 | -35.0 | Dark | Up | 23.8 | 75.2 | Low | 07:48:20 - 08:18:20 | 8071 |
| Okanogan | 08:03:17 | -35.3 | Dark | Up | 23.6 | 75.0 | Low | 07:48:17 - 08:18:17 | 8071 |
| Goldendale | 08:02:40 | -37.9 | Dark | Up | 22.0 | 73.0 | Low | 07:47:40 - 08:17:40 | 8068 |
| Maupin | 08:02:32 | -38.5 | Dark | Up | 21.6 | 72.6 | Low | 07:47:32 - 08:17:32 | 8064 |
| Toppenish/White Swan | 08:02:45 | -37.3 | Dark | Up | 22.5 | 73.5 | Low | 07:47:45 - 08:17:45 | 8064 |
| Sisters | 08:02:21 | -39.4 | Dark | Up | 21.0 | 71.9 | Low | 07:47:21 - 08:17:21 | 8063 |
| Madras/Culver | 08:02:26 | -39.0 | Dark | Up | 21.4 | 72.3 | Low | 07:47:26 - 08:17:26 | 8055 |
| Oregon Observatory | 08:02:19 | -39.8 | Dark | Up | 21.0 | 71.9 | Low | 07:47:19 - 08:17:19 | 8050 |
| Bend | 08:02:19 | -39.6 | Dark | Up | 21.1 | 72.0 | Low | 07:47:19 - 08:17:19 | 8050 |
| Redmond | 08:02:23 | -39.4 | Dark | Up | 21.3 | 72.2 | Low | 07:47:23 - 08:17:23 | 8049 |
| La Pine/Gilchrist | 08:02:14 | -40.0 | Dark | Up | 20.9 | 71.7 | Low | 07:47:14 - 08:17:14 | 8048 |
| Chiloquin | 08:02:00 | -41.1 | Dark | Up | 20.2 | 71.1 | Low | 07:47:00 - 08:17:00 | 8035 |
| Klamath Falls | 08:01:56 | -41.4 | Dark | Up | 20.1 | 71.0 | Low | 07:46:56 - 08:16:56 | 8024 |
| George/Umatilla | 08:02:40 | -37.7 | Dark | Up | 23.1 | 74.0 | Low | 07:47:40 - 08:17:40 | 8020 |
| Pasco | 08:02:49 | -37.4 | Dark | Up | 23.3 | 74.3 | Low | 07:47:49 - 08:17:49 | 8019 |
| North Lake | 08:02:07 | -40.4 | Dark | Up | 21.1 | 71.9 | Low | 07:47:07 - 08:17:07 | 8018 |
| Tulelake | 08:01:53 | -41.7 | Dark | Up | 20.3 | 71.1 | Low | 07:46:53 - 08:16:53 | 8007 |
| PNWRO | 08:02:38 | -37.6 | Dark | Up | 23.4 | 74.3 | Low | 07:47:38 - 08:17:38 | 8006 |
| Paisley | 08:02:00 | -41.0 | Dark | Up | 21.2 | 71.9 | Low | 07:47:00 - 08:17:00 | 7992 |
| Fall River/Burney | 08:01:42 | -42.6 | Dark | Up | 20.0 | 70.8 | Really Low | 07:46:42 - 08:16:42 | 7980 |
| Lakeview | 08:01:56 | -41.5 | Dark | Up | 21.1 | 71.8 | Low | 07:46:56 - 08:16:56 | 7973 |
| Cedarville | 08:01:42 | -42.1 | Dark | Up | 21.0 | 71.7 | Low | 07:46:42 - 08:16:42 | 7950 |
| Greenville | 08:01:28 | -43.5 | Dark | Up | 20.0 | 70.7 | Really Low | 07:46:28 - 08:16:28 | 7940 |
| Susanville | 08:01:33 | -43.3 | Dark | Up | 20.3 | 71.0 | Low | 07:46:33 - 08:16:33 | 7937 |
| Gimple | 08:01:28 | -43.5 | Dark | Up | 20.0 | 70.7 | Low | 07:46:28 - 08:16:28 | 7936 |
| Quincy | 08:01:25 | -43.7 | Dark | Up | 19.9 | 70.6 | Really Low | 07:46:25 - 08:16:25 | 7934 |
| Portola | 08:01:27 | -43.9 | Dark | Up | 20.2 | 70.8 | Low | 07:46:27 - 08:16:27 | 7913 |
| Reno | 08:01:21 | -44.1 | Dark | Up | 20.6 | 71.1 | Low | 07:46:21 - 08:16:21 | 7881 |
| Carson City | 08:01:14 | -44.5 | Dark | Up | 20.5 | 71.0 | Low | 07:46:14 - 08:16:14 | 7870 |
| Gardnerville | 08:01:14 | -44.7 | Dark | Up | 20.4 | 70.9 | Low | 07:46:14 - 08:16:14 | 7860 |
| Yerington | 08:01:11 | -44.7 | Dark | Up | 20.8 | 71.2 | Low | 07:46:11 - 08:16:11 | 7840 |
| Lee Vining | 08:01:00 | -45.7 | Dark | Up | 20.5 | 70.9 | Low | 07:46:00 - 08:16:00 | 7806 |
| Hawthorne | 08:01:03 | -45.1 | Dark | Up | 21.1 | 71.3 | Low | 07:46:03 - 08:16:03 | 7805 |
| CPSLO | 08:00:28 | -48.4 | Dark | Up | 18.3 | 69.1 | Really Low | 07:45:28 - 08:15:28 | 7773 |
| Bishop | 08:00:52 | -46.3 | Dark | Up | 20.8 | 71.0 | Low | 07:45:52 - 08:15:52 | 7757 |
| Tonopah | 08:00:56 | -45.5 | Dark | Up | 21.9 | 71.9 | Low | 07:45:56 - 08:15:56 | 7734 |
| Lone Pine | 08:00:42 | -47.0 | Dark | Up | 20.8 | 70.9 | Low | 07:45:42 - 08:15:42 | 7718 |
| Beatty | 08:00:44 | -46.6 | Dark | Up | 21.9 | 71.6 | Low | 07:45:44 - 08:15:44 | 7675 |
| Wildwood | 08:00:10 | -49.5 | Dark | Up | 19.4 | 69.7 | Really Low | 07:45:10 - 08:15:10 | 7646 |
| Indian Springs | 08:00:35 | -46.9 | Dark | Up | 22.6 | 72.0 | Low | 07:45:35 - 08:15:35 | 7619 |
| Henderson | 08:00:30 | -47.3 | Dark | Up | 22.9 | 72.1 | Low | 07:45:30 - 08:15:30 | 7570 |
| Idyllwild | 08:00:05 | -49.8 | Dark | Up | 20.8 | 70.4 | Low | 07:45:05 - 08:15:05 | 7554 |
| Searchlight/Boulder City | 08:00:21 | -47.9 | Dark | Up | 22.8 | 71.9 | Low | 07:45:21 - 08:15:21 | 7546 |
| Laughlin/Bullhead City | 08:00:16 | -48.1 | Dark | Up | 22.9 | 72.0 | Low | 07:45:16 - 08:15:16 | 7519 |
| Mohave Valley | 08:00:16 | -48.4 | Dark | Up | 22.9 | 71.8 | Low | 07:45:16 - 08:15:16 | 7507 |
| Patrick | 08:00:21 | -47.8 | Dark | Up | 23.6 | 72.4 | Low | 07:45:21 - 08:15:21 | 7498 |
| Kingman/Dolan Springs | 08:00:20 | -48.0 | Dark | Up | 23.4 | 72.2 | Low | 07:45:20 - 08:15:20 | 7497 |
| Lake Havasu City | 08:00:10 | -48.8 | Dark | Up | 22.9 | 71.8 | Low | 07:45:10 - 08:15:10 | 7481 |
| Calipatria | 07:59:57 | -50.3 | Dark | Up | 21.5 | 70.7 | Low | 07:44:57 - 08:14:57 | 7477 |
| Parker | 08:00:05 | -49.1 | Dark | Up | 22.8 | 71.7 | Low | 07:45:05 - 08:15:05 | 7465 |
| Blythe | 08:00:01 | -49.7 | Dark | Up | 22.4 | 71.3 | Low | 07:45:01 - 08:15:01 | 7457 |
| DCO | 08:00:19 | -48.0 | Dark | Up | 24.0 | 72.6 | Low | 07:45:19 - 08:15:19 | 7455 |
| Yuma | 07:59:51 | -50.6 | Dark | Up | 22.0 | 70.9 | Low | 07:44:51 - 08:14:51 | 7420 |
| Niwot | 08:01:22 | -41.4 | Dark | Up | 31.6 | 79.4 | Up | 07:46:22 - 08:16:22 | 7284 |
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 13UE15, (2017/09/06 08:06UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 10.91 85 3Iot Aur 04:56:59.6 +33:09:58 2.7 6.52 92 PPM 093690 04:41:19.8 +28:36:53 5.8 1.54 88 PPM 093795 04:49:05.5 +27:00:41 8.5 1.06 90 PPM 093724 04:43:35.5 +27:41:10 8.9 0.48 89 PPM 093722 04:43:27.2 +27:01:37 10.1 0.30 89 13UE15 04:44:25.9 +27:14:18 16.4 89 Positions are for J2000
Event circumstances last updated at 2017/05/15 18:02:05 UT
Marc W. Buie, Southwest Research Institute