Event between 09KN30 and star GA0640:22079233 with event index number of 196093
Geocentric closest approach at 2018/07/12 04:27:31 UTC
J2000 position of star is 18:02:41.1 -24:33:13
Equinox of date position of star is 18:03:49.0 -24:33:07
Stellar brightness G=15.4,
use SENSEUP=128
Star is 173 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=23.1
[RECON map]
TNO is 33.3 AU from the Sun
and 32.3 AU from the Earth.
The TNO is moving 21.5
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 269 seconds.
The 1-sigma cross-track error in the shadow position is
1453 km.
The sky-plane scale is
23447.0 km/arcsec.
The TNO has an absolute magnitude Hv=7.9
Diameter=156.3 km assuming a 5% albedo -- 7.3 sec chord
Diameter=63.8 km assuming a 30% albedo -- 3.0 sec chord
Dynamical classification is 7:2EEEEE
Star training set for 09KN30, (2018/07/12 04:28UT) Object RA Dec mag sep mel Antares 16:30:32.8 -26:28:18 0.9 21.10 152 Nunki 18:56:24.8 -26:16:20 2.0 11.99 172 4 Sgr 18:00:55.5 -23:48:58 4.8 0.99 173 PPM 267682 18:02:28.4 -24:37:53 8.4 0.32 173 PPM 267744 18:04:17.0 -24:37:54 9.7 0.13 173 09KN30 18:03:49.4 -24:33:07 15.4 173 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
3.4 sigma about the mid-time.
The median site spacing is 15.3 km
RECON observability=0.2 and success probability=0.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Penticton | 04:29:21 | -4.1 | CT | Down | 10.4 | 149.9 | Really Low | 04:14:21 - 04:44:21 | 6546 |
| Oroville | 04:29:22 | -4.6 | CT | Down | 10.9 | 149.9 | Really Low | 04:14:22 - 04:44:22 | 6525 |
| Tonasket | 04:29:23 | -4.8 | CT | Down | 11.1 | 149.9 | Really Low | 04:14:23 - 04:44:23 | 6517 |
| Okanogan | 04:29:24 | -4.9 | CT | Down | 11.4 | 149.8 | Really Low | 04:14:24 - 04:44:24 | 6501 |
| Brewster | 04:29:25 | -5.0 | CT | Down | 11.5 | 149.6 | Really Low | 04:14:25 - 04:44:25 | 6486 |
| Manson/Chelan | 04:29:26 | -4.9 | CT | Down | 11.6 | 149.2 | Really Low | 04:14:26 - 04:44:26 | 6471 |
| Entiat | 04:29:27 | -5.1 | CT | Down | 11.7 | 149.1 | Really Low | 04:14:27 - 04:44:27 | 6461 |
| Wenatchee | 04:29:28 | -5.2 | CT | Down | 11.9 | 149.0 | Really Low | 04:14:28 - 04:44:28 | 6449 |
| Ellensburg | 04:29:29 | -5.3 | CT | Down | 12.2 | 148.8 | Really Low | 04:14:29 - 04:44:29 | 6427 |
| Pasco | 04:29:27 | -6.6 | CT | Down | 13.3 | 149.9 | Really Low | 04:14:27 - 04:44:27 | 6423 |
| PNWRO | 04:29:26 | -6.8 | CT | Down | 13.6 | 150.1 | Really Low | 04:14:26 - 04:44:26 | 6416 |
| Yakima | 04:29:30 | -5.6 | CT | Down | 12.6 | 148.7 | Really Low | 04:14:30 - 04:44:30 | 6410 |
| George/Umatilla | 04:29:28 | -6.7 | CT | Down | 13.6 | 149.7 | Really Low | 04:14:28 - 04:44:28 | 6404 |
| Toppenish/White Swan | 04:29:30 | -5.8 | CT | Down | 12.8 | 148.9 | Really Low | 04:14:30 - 04:44:30 | 6404 |
| Goldendale | 04:29:32 | -6.0 | CT | Down | 13.1 | 148.4 | Really Low | 04:14:32 - 04:44:32 | 6371 |
| Niwot | 04:28:49 | -17.9 | AT | Down | 23.1 | 161.6 | Low | 04:13:49 - 04:43:49 | 6365 |
| The Dalles | 04:29:34 | -5.9 | CT | Down | 13.2 | 148.1 | Really Low | 04:14:34 - 04:44:34 | 6354 |
| Maupin | 04:29:35 | -6.2 | CT | Down | 13.6 | 148.1 | Really Low | 04:14:35 - 04:44:35 | 6338 |
| Madras/Culver | 04:29:36 | -6.6 | CT | Down | 14.0 | 148.0 | Really Low | 04:14:36 - 04:44:36 | 6312 |
| Redmond | 04:29:37 | -6.8 | CT | Down | 14.3 | 148.0 | Really Low | 04:14:37 - 04:44:37 | 6294 |
| Sisters | 04:29:38 | -6.5 | CT | Down | 14.1 | 147.6 | Really Low | 04:14:38 - 04:44:38 | 6287 |
| Bend | 04:29:37 | -6.8 | CT | Down | 14.4 | 147.8 | Really Low | 04:14:37 - 04:44:37 | 6281 |
| Oregon Observatory | 04:29:38 | -6.9 | CT | Down | 14.5 | 147.7 | Really Low | 04:14:38 - 04:44:38 | 6270 |
| La Pine/Gilchrist | 04:29:39 | -7.0 | CT | Down | 14.7 | 147.6 | Really Low | 04:14:39 - 04:44:39 | 6259 |
| North Lake | 04:29:38 | -7.6 | CT | Down | 15.3 | 148.1 | Really Low | 04:14:38 - 04:44:38 | 6251 |
| Paisley | 04:29:38 | -8.1 | CT | Down | 15.9 | 148.3 | Really Low | 04:14:38 - 04:44:38 | 6231 |
| Lakeview | 04:29:38 | -8.6 | CT | Down | 16.4 | 148.4 | Really Low | 04:14:38 - 04:44:38 | 6210 |
| Chiloquin | 04:29:42 | -7.5 | CT | Down | 15.5 | 147.1 | Really Low | 04:14:42 - 04:44:42 | 6198 |
| Klamath Falls | 04:29:42 | -7.8 | CT | Down | 15.8 | 147.2 | Really Low | 04:14:42 - 04:44:42 | 6182 |
| Cedarville | 04:29:38 | -9.1 | CT | Down | 17.0 | 148.4 | Really Low | 04:14:38 - 04:44:38 | 6181 |
| Tulelake | 04:29:42 | -8.1 | CT | Down | 16.2 | 147.4 | Really Low | 04:14:42 - 04:44:42 | 6175 |
| Fall River/Burney | 04:29:43 | -8.7 | CT | Down | 17.0 | 147.3 | Really Low | 04:14:43 - 04:44:43 | 6130 |
| Susanville | 04:29:42 | -9.6 | CT | Down | 17.8 | 147.8 | Really Low | 04:14:42 - 04:44:42 | 6113 |
| Gimple | 04:29:43 | -9.6 | CT | Down | 17.9 | 147.6 | Really Low | 04:14:43 - 04:44:43 | 6093 |
| Greenville | 04:29:43 | -9.6 | CT | Down | 17.9 | 147.5 | Really Low | 04:14:43 - 04:44:43 | 6092 |
| Portola | 04:29:42 | -10.1 | CT | Down | 18.4 | 147.9 | Really Low | 04:14:42 - 04:44:42 | 6084 |
| Reno | 04:29:41 | -10.6 | CT | Down | 18.9 | 148.4 | Really Low | 04:14:41 - 04:44:41 | 6084 |
| Quincy | 04:29:44 | -9.7 | CT | Down | 18.1 | 147.5 | Really Low | 04:14:44 - 04:44:44 | 6081 |
| Yerington | 04:29:40 | -11.4 | CT | Down | 19.6 | 148.9 | Really Low | 04:14:40 - 04:44:40 | 6067 |
| Carson City | 04:29:42 | -10.9 | CT | Down | 19.2 | 148.3 | Really Low | 04:14:42 - 04:44:42 | 6065 |
| Tonopah | 04:29:35 | -13.1 | AT | Down | 21.2 | 150.4 | Low | 04:14:35 - 04:44:35 | 6056 |
| Hawthorne | 04:29:39 | -12.0 | CT | Down | 20.2 | 149.2 | Low | 04:14:39 - 04:44:39 | 6053 |
| Gardnerville | 04:29:41 | -11.0 | CT | Down | 19.4 | 148.3 | Really Low | 04:14:41 - 04:44:41 | 6052 |
| Lee Vining | 04:29:42 | -12.1 | AT | Down | 20.5 | 148.7 | Low | 04:14:42 - 04:44:42 | 6011 |
| Indian Springs | 04:29:32 | -15.0 | AT | Down | 23.1 | 151.4 | Low | 04:14:32 - 04:44:32 | 6002 |
| Beatty | 04:29:35 | -14.1 | AT | Down | 22.4 | 150.5 | Low | 04:14:35 - 04:44:35 | 5999 |
| Bishop | 04:29:40 | -12.9 | AT | Down | 21.3 | 149.2 | Low | 04:14:40 - 04:44:40 | 5992 |
| Henderson | 04:29:30 | -15.8 | AT | Down | 23.8 | 151.9 | Low | 04:14:30 - 04:44:30 | 5985 |
| Patrick | 04:29:27 | -16.9 | AT | Down | 24.8 | 152.8 | Low | 04:14:27 - 04:44:27 | 5970 |
| DCO | 04:29:24 | -17.5 | AT | Down | 25.3 | 153.4 | Low | 04:14:24 - 04:44:24 | 5965 |
| Lone Pine | 04:29:40 | -13.6 | AT | Down | 22.1 | 149.3 | Low | 04:14:40 - 04:44:40 | 5955 |
| Kingman/Dolan Springs | 04:29:27 | -16.9 | AT | Down | 24.9 | 152.6 | Low | 04:14:27 - 04:44:27 | 5953 |
| Searchlight/Boulder City | 04:29:31 | -16.2 | AT | Down | 24.3 | 151.9 | Low | 04:14:31 - 04:44:31 | 5952 |
| Laughlin/Bullhead City | 04:29:30 | -16.6 | AT | Down | 24.7 | 152.1 | Low | 04:14:30 - 04:44:30 | 5941 |
| Mohave Valley | 04:29:30 | -16.8 | AT | Down | 25.0 | 152.1 | Low | 04:14:30 - 04:44:30 | 5925 |
| Lake Havasu City | 04:29:30 | -17.2 | AT | Down | 25.4 | 152.2 | Low | 04:14:30 - 04:44:30 | 5906 |
| Parker | 04:29:30 | -17.5 | AT | Down | 25.7 | 152.2 | Low | 04:14:30 - 04:44:30 | 5885 |
| Blythe | 04:29:31 | -17.7 | AT | Down | 26.1 | 151.8 | Low | 04:14:31 - 04:44:31 | 5847 |
| CPSLO | 04:29:51 | -12.8 | AT | Down | 22.1 | 146.9 | Low | 04:14:51 - 04:44:51 | 5821 |
| Idyllwild | 04:29:39 | -16.3 | AT | Down | 25.1 | 149.9 | Low | 04:14:39 - 04:44:39 | 5811 |
| Calipatria | 04:29:36 | -17.4 | AT | Down | 26.1 | 150.8 | Low | 04:14:36 - 04:44:36 | 5797 |
| Wildwood | 04:29:45 | -14.9 | AT | Down | 24.0 | 148.3 | Low | 04:14:45 - 04:44:45 | 5792 |
| Yuma | 04:29:33 | -18.3 | Dark | Down | 26.9 | 151.5 | Low | 04:14:33 - 04:44:33 | 5788 |
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 09KN30, (2018/07/12 04:28UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 21.10 152 Nunki 18:55:15.9 -26:17:49 2.0 11.99 172 4 Sgr 17:59:47.6 -23:48:59 4.8 0.99 173 PPM 267682 18:01:20.1 -24:37:56 8.4 0.32 173 PPM 267744 18:03:08.7 -24:38:00 9.7 0.13 173 09KN30 18:02:41.1 -24:33:13 15.4 173 Positions are for J2000
Event circumstances last updated at 2018/06/05 16:14:21 UT
Marc W. Buie, Southwest Research Institute