Event between (10199) Chariklo and star UC4-293-209594 with event index number of 56899
Geocentric closest approach at 2017/07/23 05:47:43 UTC
J2000 position of star is 18:48:09.3 -31:26:33
Equinox of date position of star is 18:49:16.9 -31:25:19
Stellar brightness R=13.2,
use SENSEUP=32
Star is 159 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=18.6
[RECON map]
TNO is 15.7 AU from the Sun
and 14.7 AU from the Earth.
The TNO is moving 21.0
km/sec on the sky relative to the star, or,
7.1 arcsec/hr.
The 1-sigma error in the time of the event is 152 seconds.
The 1-sigma cross-track error in the shadow position is
1663 km.
The sky-plane scale is
10678.1 km/arcsec.
The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 13.7 sec chord
Diameter=117.7 km assuming a 30% albedo -- 5.6 sec chord
Dynamical classification is CENTAURR
Star training set for 10199, (2017/07/23 05:48UT) Object RA Dec mag sep mel Antares 16:30:29.2 -26:28:10 0.9 30.64 131 38Zet Sgr 19:03:43.6 -29:51:13 2.7 3.48 163 PPM 298345 18:57:35.3 -31:39:54 6.3 1.78 160 PPM 298151 18:48:06.9 -31:30:59 8.4 0.27 159 PPM 298163 18:48:29.8 -31:31:40 9.5 0.20 159 10199 18:49:17.3 -31:25:18 13.2 159 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 7.2 km
RECON observability=0.3 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) |
| Oroville | 05:49:00 | -14.8 | AT | Down | 8.8 | 168.7 | Really Low | 05:35:49 - 06:02:10 | 8178 |
| Tonasket | 05:49:00 | -15.0 | AT | Down | 9.0 | 168.7 | Really Low | 05:35:49 - 06:02:10 | 8173 |
| Okanogan | 05:49:00 | -15.2 | AT | Down | 9.3 | 168.6 | Really Low | 05:35:49 - 06:02:10 | 8163 |
| Brewster | 05:49:00 | -15.3 | AT | Down | 9.6 | 168.4 | Really Low | 05:35:49 - 06:02:10 | 8153 |
| Manson/Chelan | 05:49:00 | -15.4 | AT | Down | 9.7 | 168.1 | Really Low | 05:35:49 - 06:02:10 | 8142 |
| Entiat | 05:49:05 | -15.5 | AT | Down | 9.9 | 168.1 | Really Low | 05:35:55 - 06:02:16 | 8135 |
| Wenatchee | 05:49:06 | -15.7 | AT | Down | 10.2 | 168.0 | Really Low | 05:35:56 - 06:02:17 | 8127 |
| Niwot | 05:48:13 | -27.1 | Dark | Down | 18.4 | 180.9 | Really Low | 05:35:03 - 06:01:24 | 8122 |
| Pasco | 05:49:00 | -17.1 | AT | Down | 11.5 | 168.9 | Really Low | 05:35:49 - 06:02:10 | 8118 |
| PNWRO | 05:49:00 | -17.4 | AT | Down | 11.7 | 169.1 | Really Low | 05:35:49 - 06:02:10 | 8116 |
| Ellensburg | 05:49:07 | -16.0 | AT | Down | 10.5 | 167.8 | Really Low | 05:35:57 - 06:02:18 | 8113 |
| George/Umatilla | 05:49:00 | -17.3 | AT | Down | 11.8 | 168.7 | Really Low | 05:35:49 - 06:02:10 | 8106 |
| Yakima | 05:49:08 | -16.3 | AT | Down | 10.9 | 167.7 | Really Low | 05:35:57 - 06:02:18 | 8102 |
| Toppenish/White Swan | 05:49:08 | -16.6 | AT | Down | 11.2 | 167.9 | Really Low | 05:35:57 - 06:02:18 | 8099 |
| Goldendale | 05:49:09 | -16.8 | AT | Down | 11.6 | 167.5 | Really Low | 05:35:59 - 06:02:20 | 8076 |
| The Dalles | 05:49:11 | -16.9 | AT | Down | 11.8 | 167.2 | Really Low | 05:36:00 - 06:02:21 | 8062 |
| Maupin | 05:49:11 | -17.3 | AT | Down | 12.2 | 167.2 | Really Low | 05:36:00 - 06:02:21 | 8053 |
| Madras/Culver | 05:49:11 | -17.7 | AT | Down | 12.8 | 167.2 | Really Low | 05:36:00 - 06:02:21 | 8036 |
| Redmond | 05:49:12 | -18.0 | AT | Down | 13.1 | 167.1 | Really Low | 05:36:01 - 06:02:22 | 8024 |
| Sisters | 05:49:13 | -17.8 | AT | Down | 13.0 | 166.8 | Really Low | 05:36:02 - 06:02:23 | 8017 |
| Bend | 05:49:12 | -18.1 | Dark | Down | 13.3 | 167.0 | Really Low | 05:36:02 - 06:02:23 | 8015 |
| Oregon Observatory | 05:49:12 | -18.2 | Dark | Down | 13.4 | 166.9 | Really Low | 05:36:02 - 06:02:23 | 8007 |
| La Pine/Gilchrist | 05:49:13 | -18.3 | Dark | Down | 13.6 | 166.8 | Really Low | 05:36:03 - 06:02:24 | 7999 |
| North Lake | 05:49:11 | -18.9 | Dark | Down | 14.1 | 167.3 | Really Low | 05:36:00 - 06:02:21 | 7997 |
| Paisley | 05:49:10 | -19.5 | Dark | Down | 14.7 | 167.6 | Really Low | 05:36:00 - 06:02:21 | 7986 |
| Lakeview | 05:49:10 | -20.0 | Dark | Down | 15.3 | 167.7 | Really Low | 05:36:00 - 06:02:21 | 7973 |
| Chiloquin | 05:49:16 | -19.1 | Dark | Down | 14.6 | 166.4 | Really Low | 05:36:05 - 06:02:26 | 7955 |
| Cedarville | 05:49:10 | -20.6 | Dark | Down | 15.9 | 167.8 | Really Low | 05:36:00 - 06:02:21 | 7953 |
| Klamath Falls | 05:49:15 | -19.4 | Dark | Down | 15.0 | 166.5 | Really Low | 05:36:05 - 06:02:26 | 7945 |
| Tulelake | 05:49:14 | -19.7 | Dark | Down | 15.3 | 166.7 | Really Low | 05:36:03 - 06:02:24 | 7942 |
| Fall River/Burney | 05:49:15 | -20.5 | Dark | Down | 16.2 | 166.7 | Really Low | 05:36:04 - 06:02:25 | 7911 |
| Susanville | 05:49:12 | -21.4 | Dark | Down | 16.9 | 167.3 | Really Low | 05:36:02 - 06:02:23 | 7903 |
| Gimple | 05:49:13 | -21.5 | Dark | Down | 17.2 | 167.1 | Really Low | 05:36:03 - 06:02:24 | 7888 |
| Reno | 05:49:09 | -22.4 | Dark | Down | 17.9 | 168.0 | Really Low | 05:35:59 - 06:02:20 | 7886 |
| Greenville | 05:49:14 | -21.5 | Dark | Down | 17.2 | 167.1 | Really Low | 05:36:03 - 06:02:24 | 7886 |
| Portola | 05:49:12 | -21.9 | Dark | Down | 17.6 | 167.5 | Really Low | 05:36:01 - 06:02:22 | 7884 |
| Quincy | 05:49:14 | -21.6 | Dark | Down | 17.4 | 167.1 | Really Low | 05:36:03 - 06:02:24 | 7878 |
| Tonopah | 05:49:00 | -24.8 | Dark | Down | 19.8 | 170.2 | Really Low | 05:35:49 - 06:02:10 | 7878 |
| Yerington | 05:49:07 | -23.2 | Dark | Down | 18.6 | 168.5 | Really Low | 05:35:57 - 06:02:18 | 7878 |
| Carson City | 05:49:09 | -22.7 | Dark | Down | 18.3 | 168.0 | Really Low | 05:35:59 - 06:02:20 | 7873 |
| Hawthorne | 05:49:00 | -23.8 | Dark | Down | 19.1 | 168.9 | Really Low | 05:35:49 - 06:02:10 | 7870 |
| Gardnerville | 05:49:10 | -23.0 | Dark | Down | 18.5 | 168.0 | Really Low | 05:35:59 - 06:02:20 | 7864 |
| Indian Springs | 05:48:54 | -26.7 | Dark | Down | 21.4 | 171.5 | Low | 05:35:43 - 06:02:04 | 7843 |
| Lee Vining | 05:49:08 | -24.0 | Dark | Down | 19.6 | 168.5 | Really Low | 05:35:57 - 06:02:18 | 7837 |
| Beatty | 05:48:59 | -25.9 | Dark | Down | 21.0 | 170.5 | Low | 05:35:48 - 06:02:09 | 7837 |
| Henderson | 05:48:52 | -27.4 | Dark | Down | 22.0 | 172.1 | Low | 05:35:41 - 06:02:02 | 7831 |
| Bishop | 05:49:00 | -24.8 | Dark | Down | 20.3 | 169.1 | Low | 05:35:49 - 06:02:10 | 7827 |
| Patrick | 05:48:47 | -28.4 | Dark | Down | 22.8 | 173.0 | Low | 05:35:37 - 06:01:58 | 7823 |
| DCO | 05:48:44 | -29.0 | Dark | Down | 23.1 | 173.7 | Low | 05:35:34 - 06:01:55 | 7821 |
| Kingman/Dolan Springs | 05:48:48 | -28.5 | Dark | Down | 23.0 | 172.8 | Low | 05:35:37 - 06:01:58 | 7810 |
| Searchlight/Boulder City | 05:48:52 | -27.9 | Dark | Down | 22.6 | 172.1 | Low | 05:35:41 - 06:02:02 | 7807 |
| Lone Pine | 05:49:00 | -25.6 | Dark | Down | 21.1 | 169.3 | Low | 05:35:49 - 06:02:10 | 7800 |
| Laughlin/Bullhead City | 05:48:50 | -28.3 | Dark | Down | 22.9 | 172.4 | Low | 05:35:40 - 06:02:01 | 7799 |
| Mohave Valley | 05:48:50 | -28.6 | Dark | Down | 23.2 | 172.4 | Low | 05:35:40 - 06:02:01 | 7787 |
| Lake Havasu City | 05:48:49 | -29.0 | Dark | Down | 23.6 | 172.6 | Low | 05:35:38 - 06:01:59 | 7773 |
| Parker | 05:48:49 | -29.3 | Dark | Down | 24.0 | 172.6 | Low | 05:35:39 - 06:02:00 | 7757 |
| Blythe | 05:48:50 | -29.7 | Dark | Down | 24.5 | 172.3 | Low | 05:35:40 - 06:02:01 | 7727 |
| Idyllwild | 05:48:59 | -28.6 | Dark | Down | 24.1 | 170.3 | Low | 05:35:49 - 06:02:10 | 7695 |
| CPSLO | 05:49:15 | -25.5 | Dark | Down | 21.9 | 166.9 | Low | 05:36:05 - 06:02:26 | 7687 |
| Calipatria | 05:48:54 | -29.7 | Dark | Down | 24.9 | 171.4 | Low | 05:35:44 - 06:02:05 | 7686 |
| Yuma | 05:48:51 | -30.4 | Dark | Down | 25.4 | 172.2 | Low | 05:35:40 - 06:02:01 | 7681 |
| Wildwood | 05:49:07 | -27.5 | Dark | Down | 23.5 | 168.7 | Low | 05:35:57 - 06:02:18 | 7674 |
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 10199, (2017/07/23 05:48UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 30.64 131 38Zet Sgr 19:02:36.7 -29:52:49 2.7 3.48 163 PPM 298345 18:56:27.3 -31:41:21 6.3 1.78 160 PPM 298151 18:46:58.8 -31:32:11 8.4 0.27 159 PPM 298163 18:47:21.8 -31:32:54 9.5 0.20 159 10199 18:48:09.3 -31:26:33 13.2 159 Positions are for J2000
Event circumstances last updated at 2017/06/14 16:58:11 UT
Marc W. Buie, Southwest Research Institute