Event between 13KZ18 and star UC4-519-141279 with event index number of 133635
Geocentric closest approach at 2017/10/31 08:10:41 UTC
J2000 position of star is 22:30:52.5 +13:45:32
Equinox of date position of star is 22:31:43.6 +13:50:54
Stellar brightness R=15.2,
use SENSEUP=128
Star is 24 degrees from the moon.
Moon is 82% illuminated.
TNO apparent brightness V=22.0
[RECON map]
TNO is 18.9 AU from the Sun
and 18.3 AU from the Earth.
The TNO is moving 11.6
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 443 seconds.
The 1-sigma cross-track error in the shadow position is
4251 km.
The sky-plane scale is
13303.0 km/arcsec.
The TNO has an absolute magnitude Hv=9.0
Diameter=96.8 km assuming a 5% albedo -- 8.4 sec chord
Diameter=39.5 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is CENTAURR
Star training set for 13KZ18, (2017/10/31 08:11UT) Object RA Dec mag sep mel Deneb 20:42:02.4 +45:20:41 1.3 39.11 63 Markab 23:05:39.0 +15:18:05 2.5 8.33 22 PPM 141560 22:33:32.4 +13:08:12 6.5 0.84 23 PPM 141547 22:32:42.0 +13:11:48 8.2 0.69 23 PPM 141519 22:31:24.8 +13:48:55 9.2 0.09 24 13KZ18 22:31:45.1 +13:51:03 15.2 24 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
2.0 sigma about the mid-time.
The median site spacing is 26.8 km
RECON observability=1.0 and success probability=12.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Oroville | 08:02:34 | -55.0 | Dark | Up | 27.8 | 258.7 | Low | 07:47:34 - 08:17:34 | 1532 |
| Tonasket | 08:02:34 | -55.2 | Dark | Up | 27.8 | 258.9 | Low | 07:47:34 - 08:17:34 | 1507 |
| Okanogan | 08:02:35 | -55.6 | Dark | Up | 28.0 | 258.9 | Low | 07:47:35 - 08:17:35 | 1472 |
| Brewster | 08:02:35 | -55.9 | Dark | Up | 28.2 | 258.9 | Low | 07:47:35 - 08:17:35 | 1445 |
| Manson/Chelan | 08:02:36 | -56.1 | Dark | Up | 28.4 | 258.7 | Low | 07:47:36 - 08:17:36 | 1427 |
| Entiat | 08:02:36 | -56.3 | Dark | Up | 28.5 | 258.8 | Low | 07:47:36 - 08:17:36 | 1404 |
| Wenatchee | 08:02:37 | -56.6 | Dark | Up | 28.6 | 258.8 | Low | 07:47:37 - 08:17:37 | 1378 |
| Ellensburg | 08:02:38 | -57.0 | Dark | Up | 28.9 | 258.9 | Low | 07:47:38 - 08:17:38 | 1336 |
| Yakima | 08:02:38 | -57.4 | Dark | Up | 29.0 | 259.1 | Low | 07:47:38 - 08:17:38 | 1292 |
| Toppenish/White Swan | 08:02:38 | -57.6 | Dark | Up | 28.9 | 259.3 | Low | 07:47:38 - 08:17:38 | 1266 |
| Pasco | 08:02:35 | -57.6 | Dark | Up | 28.0 | 260.4 | Low | 07:47:35 - 08:17:35 | 1235 |
| Goldendale | 08:02:40 | -58.2 | Dark | Up | 29.3 | 259.3 | Low | 07:47:40 - 08:17:40 | 1212 |
| PNWRO | 08:02:35 | -57.8 | Dark | Up | 27.9 | 260.7 | Low | 07:47:35 - 08:17:35 | 1204 |
| George/Umatilla | 08:02:35 | -58.0 | Dark | Up | 28.3 | 260.4 | Low | 07:47:35 - 08:17:35 | 1201 |
| The Dalles | 08:02:41 | -58.5 | Dark | Up | 29.6 | 259.1 | Low | 07:47:41 - 08:17:41 | 1193 |
| Maupin | 08:02:42 | -58.9 | Dark | Up | 29.6 | 259.5 | Low | 07:47:42 - 08:17:42 | 1146 |
| Madras/Culver | 08:02:42 | -59.4 | Dark | Up | 29.7 | 259.7 | Low | 07:47:42 - 08:17:42 | 1087 |
| Sisters | 08:02:45 | -59.8 | Dark | Up | 30.1 | 259.6 | Up | 07:47:45 - 08:17:45 | 1058 |
| Redmond | 08:02:43 | -59.8 | Dark | Up | 29.8 | 259.9 | Low | 07:47:43 - 08:17:43 | 1049 |
| Bend | 08:02:44 | -60.0 | Dark | Up | 29.9 | 259.9 | Low | 07:47:44 - 08:17:44 | 1028 |
| Oregon Observatory | 08:02:45 | -60.2 | Dark | Up | 30.0 | 259.9 | Up | 07:47:45 - 08:17:45 | 1011 |
| La Pine/Gilchrist | 08:02:45 | -60.4 | Dark | Up | 30.1 | 260.0 | Up | 07:47:45 - 08:17:45 | 990 |
| North Lake | 08:02:44 | -60.8 | Dark | Up | 29.8 | 260.7 | Low | 07:47:44 - 08:17:44 | 933 |
| Chiloquin | 08:02:48 | -61.5 | Dark | Up | 30.6 | 260.4 | Up | 07:47:48 - 08:17:48 | 876 |
| Paisley | 08:02:44 | -61.3 | Dark | Up | 29.6 | 261.3 | Low | 07:47:44 - 08:17:44 | 867 |
| Klamath Falls | 08:02:49 | -61.9 | Dark | Up | 30.6 | 260.6 | Up | 07:47:49 - 08:17:49 | 837 |
| Lakeview | 08:02:43 | -61.8 | Dark | Up | 29.5 | 261.7 | Low | 07:47:43 - 08:17:43 | 809 |
| Tulelake | 08:02:48 | -62.1 | Dark | Up | 30.4 | 261.0 | Up | 07:47:48 - 08:17:48 | 803 |
| Cedarville | 08:02:44 | -62.4 | Dark | Up | 29.5 | 262.2 | Low | 07:47:44 - 08:17:44 | 735 |
| Fall River/Burney | 08:02:49 | -63.0 | Dark | Up | 30.4 | 261.6 | Up | 07:47:49 - 08:17:49 | 703 |
| Susanville | 08:02:47 | -63.5 | Dark | Up | 30.0 | 262.5 | Low | 07:47:47 - 08:17:47 | 622 |
| Greenville | 08:02:49 | -63.8 | Dark | Up | 30.2 | 262.4 | Up | 07:47:49 - 08:17:49 | 597 |
| Gimple | 08:02:49 | -63.8 | Dark | Up | 30.2 | 262.5 | Up | 07:47:49 - 08:17:49 | 596 |
| Quincy | 08:02:49 | -64.0 | Dark | Up | 30.3 | 262.6 | Up | 07:47:49 - 08:17:49 | 575 |
| Portola | 08:02:48 | -64.1 | Dark | Up | 29.9 | 263.0 | Low | 07:47:48 - 08:17:48 | 554 |
| Reno | 08:02:46 | -64.3 | Dark | Up | 29.5 | 263.6 | Low | 07:47:46 - 08:17:46 | 514 |
| Carson City | 08:02:47 | -64.6 | Dark | Up | 29.5 | 263.8 | Low | 07:47:47 - 08:17:47 | 475 |
| Niwot | 08:02:03 | -59.0 | Dark | Up | 18.3 | 272.8 | Really Low | 07:47:03 - 08:17:03 | 460 |
| Gardnerville | 08:02:47 | -64.9 | Dark | Up | 29.5 | 264.0 | Low | 07:47:47 - 08:17:47 | 448 |
| Yerington | 08:02:45 | -64.7 | Dark | Up | 29.0 | 264.3 | Low | 07:47:45 - 08:17:45 | 445 |
| Hawthorne | 08:02:44 | -65.1 | Dark | Up | 28.6 | 264.9 | Low | 07:47:44 - 08:17:44 | 386 |
| Lee Vining | 08:02:47 | -65.7 | Dark | Up | 29.1 | 264.9 | Low | 07:47:47 - 08:17:47 | 333 |
| Tonopah | 08:02:40 | -65.2 | Dark | Up | 27.6 | 266.1 | Low | 07:47:40 - 08:17:40 | 316 |
| Bishop | 08:02:46 | -66.2 | Dark | Up | 28.5 | 265.7 | Low | 07:47:46 - 08:17:46 | 257 |
| Beatty | 08:02:42 | -66.2 | Dark | Up | 27.3 | 267.0 | Low | 07:47:42 - 08:17:42 | 185 |
| Lone Pine | 08:02:47 | -66.8 | Dark | Up | 28.3 | 266.3 | Low | 07:47:47 - 08:17:47 | 171 |
| Indian Springs | 08:02:38 | -66.2 | Dark | Up | 26.5 | 267.8 | Low | 07:47:38 - 08:17:38 | 136 |
| CPSLO | 08:02:59 | -68.6 | Dark | Up | 30.5 | 265.5 | Up | 07:47:59 - 08:17:59 | 74 |
| Henderson | 08:02:38 | -66.5 | Dark | Up | 25.9 | 268.5 | Low | 07:47:38 - 08:17:38 | 71 |
| Searchlight/Boulder City | 08:02:38 | -67.0 | Dark | Up | 25.9 | 268.8 | Low | 07:47:38 - 08:17:38 | 9 |
| Patrick | 08:02:36 | -66.6 | Dark | Up | 25.0 | 269.4 | Low | 07:47:36 - 08:17:36 | -10 |
| Laughlin/Bullhead City | 08:02:38 | -67.1 | Dark | Up | 25.6 | 269.1 | Low | 07:47:38 - 08:17:38 | -29 |
| Kingman/Dolan Springs | 08:02:37 | -66.9 | Dark | Up | 25.2 | 269.4 | Low | 07:47:37 - 08:17:37 | -31 |
| DCO | 08:02:35 | -66.6 | Dark | Up | 24.4 | 270.0 | Low | 07:47:35 - 08:17:35 | -49 |
| Mohave Valley | 08:02:39 | -67.4 | Dark | Up | 25.6 | 269.3 | Low | 07:47:39 - 08:17:39 | -57 |
| Wildwood | 08:02:55 | -69.3 | Dark | Up | 28.9 | 267.4 | Low | 07:47:55 - 08:17:55 | -90 |
| Lake Havasu City | 08:02:39 | -67.6 | Dark | Up | 25.4 | 269.6 | Low | 07:47:39 - 08:17:39 | -103 |
| Parker | 08:02:40 | -67.9 | Dark | Up | 25.4 | 269.8 | Low | 07:47:40 - 08:17:40 | -141 |
| Idyllwild | 08:02:49 | -69.1 | Dark | Up | 27.3 | 268.7 | Low | 07:47:49 - 08:17:49 | -155 |
| Blythe | 08:02:42 | -68.5 | Dark | Up | 25.6 | 269.9 | Low | 07:47:42 - 08:17:42 | -193 |
| Calipatria | 08:02:47 | -69.3 | Dark | Up | 26.4 | 269.6 | Low | 07:47:47 - 08:17:47 | -235 |
| Yuma | 08:02:45 | -69.3 | Dark | Up | 25.6 | 270.3 | Low | 07:47:45 - 08:17:45 | -291 |
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 13KZ18, (2017/10/31 08:11UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 39.11 63 Markab 23:04:45.7 +15:12:18 2.5 8.33 22 PPM 141560 22:32:39.6 +13:02:40 6.5 0.84 23 PPM 141547 22:31:49.2 +13:06:17 8.2 0.69 23 PPM 141519 22:30:32.1 +13:43:25 9.2 0.09 24 13KZ18 22:30:52.5 +13:45:32 15.2 24 Positions are for J2000
Event circumstances last updated at 2017/04/24 16:12:57 UT
Marc W. Buie, Southwest Research Institute