Event between 08JO41 and star UC4-556-069724 with event index number of 66524
Geocentric closest approach at 2016/06/20 08:58:49 UTC
J2000 position of star is 18:22:33.5 +21:05:49
Equinox of date position of star is 18:23:15.6 +21:06:21
Stellar brightness R=13.4
Star is 40 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=24.8
[RECON map]
TNO is 42.2 AU from the Sun
and 41.5 AU from the Earth.
The TNO is moving 24.0
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 182 seconds.
The 1-sigma cross-track error in the shadow position is
1511 km.
The sky-plane scale is
30114.8 km/arcsec.
The TNO has an absolute magnitude Hv=8.4
Diameter=124.7 km assuming a 5% albedo -- 5.2 sec chord
Diameter=50.9 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is SCATNEAR
Star training set for 08JO41, (2016/06/20 08:59UT) Object RA Dec mag sep mel Vega 18:37:29.8 +38:47:59 0.0 17.96 58 Rasalhague 17:35:42.0 +12:32:57 2.1 14.23 31 109 Her 18:24:24.0 +21:46:42 3.8 0.72 41 PPM 107161 18:23:38.8 +20:58:23 8.1 0.16 40 08JO41 18:23:15.7 +21:06:22 13.4 40 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
4.9 sigma about the mid-time.
The median site spacing is 24.8 km
RECON observability=1.0 and success probability=30.4%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Oroville | 08:58:20 | -16.4 | AT | Up | 61.3 | 196.7 | Up | 08:43:20 - 09:13:20 | 667 |
| Tonasket | 08:58:20 | -16.7 | AT | Up | 61.6 | 196.9 | Up | 08:43:20 - 09:13:20 | 644 |
| Okanogan | 08:58:20 | -17.0 | AT | Up | 61.9 | 196.8 | Up | 08:43:20 - 09:13:20 | 611 |
| Brewster | 08:58:21 | -17.3 | AT | Up | 62.2 | 196.5 | Up | 08:43:21 - 09:13:21 | 583 |
| Manson/Chelan | 08:58:22 | -17.6 | AT | Up | 62.5 | 195.9 | Up | 08:43:22 - 09:13:22 | 562 |
| Entiat | 08:58:22 | -17.8 | AT | Up | 62.7 | 195.9 | Up | 08:43:22 - 09:13:22 | 540 |
| Wenatchee | 08:58:22 | -18.1 | Dark | Up | 63.0 | 195.8 | Up | 08:43:22 - 09:13:22 | 515 |
| Ellensburg | 08:58:23 | -18.5 | Dark | Up | 63.4 | 195.6 | Up | 08:43:23 - 09:13:23 | 473 |
| Yakima | 08:58:23 | -18.9 | Dark | Up | 63.8 | 195.8 | Up | 08:43:23 - 09:13:23 | 432 |
| Toppenish/White Swan | 08:58:22 | -19.1 | Dark | Up | 64.0 | 196.3 | Up | 08:43:22 - 09:13:22 | 411 |
| Pasco | 08:58:18 | -19.0 | Dark | Up | 63.8 | 198.9 | Up | 08:43:18 - 09:13:18 | 401 |
| PNWRO | 08:58:17 | -19.2 | Dark | Up | 64.0 | 199.6 | Up | 08:43:17 - 09:13:17 | 376 |
| George/Umatilla | 08:58:18 | -19.4 | Dark | Up | 64.2 | 198.7 | Up | 08:43:18 - 09:13:18 | 366 |
| Goldendale | 08:58:23 | -19.7 | Dark | Up | 64.6 | 195.7 | Up | 08:43:23 - 09:13:23 | 355 |
| The Dalles | 08:58:24 | -20.0 | Dark | Up | 64.9 | 195.0 | Up | 08:43:24 - 09:13:24 | 331 |
| Maupin | 08:58:23 | -20.4 | Dark | Up | 65.3 | 195.5 | Up | 08:43:23 - 09:13:23 | 289 |
| Madras/Culver | 08:58:23 | -20.9 | Dark | Up | 65.8 | 195.7 | Up | 08:43:23 - 09:13:23 | 234 |
| Sisters | 08:58:25 | -21.3 | Dark | Up | 66.2 | 194.9 | Up | 08:43:25 - 09:13:25 | 199 |
| Redmond | 08:58:24 | -21.3 | Dark | Up | 66.2 | 195.8 | Up | 08:43:24 - 09:13:24 | 197 |
| Bend | 08:58:24 | -21.5 | Dark | Up | 66.4 | 195.6 | Up | 08:43:24 - 09:13:24 | 175 |
| Oregon Observatory | 08:58:24 | -21.7 | Dark | Up | 66.6 | 195.5 | Up | 08:43:24 - 09:13:24 | 157 |
| La Pine/Gilchrist | 08:58:25 | -21.9 | Dark | Up | 66.8 | 195.4 | Up | 08:43:25 - 09:13:25 | 136 |
| North Lake | 08:58:23 | -22.2 | Dark | Up | 67.1 | 197.1 | Up | 08:43:23 - 09:13:23 | 94 |
| Paisley | 08:58:22 | -22.7 | Dark | Up | 67.5 | 198.4 | Up | 08:43:22 - 09:13:22 | 37 |
| Chiloquin | 08:58:26 | -23.0 | Dark | Up | 67.9 | 195.3 | Up | 08:43:26 - 09:13:26 | 22 |
| Klamath Falls | 08:58:25 | -23.3 | Dark | Up | 68.2 | 195.7 | Up | 08:43:25 - 09:13:25 | -15 |
| Lakeview | 08:58:21 | -23.1 | Dark | Up | 68.0 | 199.2 | Up | 08:43:21 - 09:13:21 | -18 |
| Tulelake | 08:58:24 | -23.6 | Dark | Up | 68.4 | 196.7 | Up | 08:43:24 - 09:13:24 | -42 |
| Cedarville | 08:58:20 | -23.8 | Dark | Up | 68.5 | 200.2 | Up | 08:43:20 - 09:13:20 | -85 |
| Fall River/Burney | 08:58:23 | -24.4 | Dark | Up | 69.3 | 197.6 | Up | 08:43:23 - 09:13:23 | -137 |
| Niwot | 08:57:29 | -21.0 | Dark | Up | 63.0 | 232.0 | Up | 08:42:29 - 09:12:29 | -150 |
| Susanville | 08:58:21 | -24.9 | Dark | Up | 69.7 | 200.0 | Up | 08:43:21 - 09:13:21 | -202 |
| Greenville | 08:58:22 | -25.2 | Dark | Up | 70.0 | 199.5 | Up | 08:43:22 - 09:13:22 | -231 |
| Quincy | 08:58:22 | -25.4 | Dark | Up | 70.2 | 199.7 | Up | 08:43:22 - 09:13:22 | -253 |
| Portola | 08:58:20 | -25.5 | Dark | Up | 70.2 | 201.0 | Up | 08:43:20 - 09:13:20 | -265 |
| Reno | 08:58:18 | -25.6 | Dark | Up | 70.3 | 203.0 | Up | 08:43:18 - 09:13:18 | -292 |
| Carson City | 08:58:18 | -26.0 | Dark | Up | 70.6 | 203.5 | Up | 08:43:18 - 09:13:18 | -330 |
| Yerington | 08:58:16 | -26.0 | Dark | Up | 70.6 | 205.3 | Up | 08:43:16 - 09:13:16 | -349 |
| Gardnerville | 08:58:18 | -26.2 | Dark | Up | 70.8 | 203.9 | Up | 08:43:18 - 09:13:18 | -356 |
| Hawthorne | 08:58:13 | -26.4 | Dark | Up | 70.8 | 207.3 | Up | 08:43:13 - 09:13:13 | -397 |
| Tonopah | 08:58:08 | -26.5 | Dark | Up | 70.7 | 211.5 | Up | 08:43:08 - 09:13:08 | -442 |
| Lee Vining | 08:58:15 | -27.0 | Dark | Up | 71.5 | 206.8 | Up | 08:43:15 - 09:13:15 | -458 |
| Bishop | 08:58:12 | -27.4 | Dark | Up | 71.8 | 209.5 | Up | 08:43:12 - 09:13:12 | -520 |
| Beatty | 08:58:06 | -27.5 | Dark | Up | 71.5 | 214.5 | Up | 08:43:06 - 09:13:06 | -564 |
| Indian Springs | 08:58:02 | -27.5 | Dark | Up | 71.2 | 217.8 | Up | 08:43:02 - 09:13:02 | -595 |
| Lone Pine | 08:58:11 | -28.1 | Dark | Up | 72.3 | 211.6 | Up | 08:43:11 - 09:13:11 | -600 |
| Henderson | 08:57:59 | -27.8 | Dark | Up | 71.3 | 220.4 | Up | 08:42:59 - 09:12:59 | -649 |
| Searchlight/Boulder City | 08:57:59 | -28.4 | Dark | Up | 71.7 | 221.7 | Up | 08:42:59 - 09:12:59 | -710 |
| Patrick | 08:57:55 | -28.1 | Dark | Up | 71.2 | 224.3 | Up | 08:42:55 - 09:12:55 | -710 |
| Kingman/Dolan Springs | 08:57:55 | -28.4 | Dark | Up | 71.4 | 224.3 | Up | 08:42:55 - 09:12:55 | -735 |
| DCO | 08:57:52 | -28.2 | Dark | Up | 71.0 | 226.5 | Up | 08:42:52 - 09:12:52 | -739 |
| Laughlin/Bullhead City | 08:57:58 | -28.5 | Dark | Up | 71.7 | 223.1 | Up | 08:42:58 - 09:12:58 | -740 |
| CPSLO | 08:58:20 | -29.9 | Dark | Up | 74.4 | 206.1 | Up | 08:43:20 - 09:13:20 | -745 |
| Mohave Valley | 08:57:57 | -28.8 | Dark | Up | 71.9 | 223.7 | Up | 08:42:57 - 09:12:57 | -770 |
| Lake Havasu City | 08:57:56 | -29.1 | Dark | Up | 72.1 | 225.2 | Up | 08:42:56 - 09:12:56 | -812 |
| Parker | 08:57:56 | -29.4 | Dark | Up | 72.3 | 226.0 | Up | 08:42:56 - 09:12:56 | -849 |
| Wildwood | 08:58:12 | -30.6 | Dark | Up | 74.6 | 214.7 | Up | 08:43:12 - 09:13:12 | -871 |
| Idyllwild | 08:58:05 | -30.5 | Dark | Up | 74.0 | 220.9 | Up | 08:43:05 - 09:13:05 | -904 |
| Blythe | 08:57:57 | -30.0 | Dark | Up | 72.8 | 226.5 | Up | 08:42:57 - 09:12:57 | -907 |
| Calipatria | 08:58:00 | -30.7 | Dark | Up | 73.7 | 225.4 | Up | 08:43:00 - 09:13:00 | -965 |
| Yuma | 08:57:56 | -30.9 | Dark | Up | 73.5 | 228.7 | Up | 08:42:56 - 09:12:56 | -1008 |
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 08JO41, (2016/06/20 08:59UT) Object RA Dec mag sep mel Vega 18:36:56.6 +38:47:06 0.0 17.96 58 Rasalhague 17:34:56.2 +12:33:32 2.1 14.23 31 109 Her 18:23:42.1 +21:46:07 3.8 0.72 41 PPM 107161 18:22:56.6 +20:57:50 8.1 0.16 40 08JO41 18:22:33.5 +21:05:49 13.4 40 Positions are for J2000
Event circumstances last updated at 2016/06/04 19:55:57 UT
Marc W. Buie, Southwest Research Institute