Event between 13UG17 and star UC4-480-001826 with event index number of 220007
Geocentric closest approach at 2017/12/07 08:20:58 UTC
J2000 position of star is 01:14:12.9 +05:59:56
Equinox of date position of star is 01:15:08.8 +06:05:36
Stellar brightness R=16.3,
use SENSEUP=128
Star is 108 degrees from the moon.
Moon is 81% illuminated.
TNO apparent brightness V=24.6
[RECON map]
TNO is 41.5 AU from the Sun
and 40.9 AU from the Earth.
The TNO is moving 12.1
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 309 seconds.
The 1-sigma cross-track error in the shadow position is
2585 km.
The sky-plane scale is
29694.5 km/arcsec.
The TNO has an absolute magnitude Hv=8.3
Diameter=133.0 km assuming a 5% albedo -- 11.0 sec chord
Diameter=54.3 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 13UG17, (2017/12/07 08:21UT) Object RA Dec mag sep mel Algenib 00:14:09.7 +15:16:59 2.8 17.56 117 80 Psc 01:09:17.7 +05:44:39 5.5 1.50 109 PPM 144454 01:18:31.6 +05:58:41 8.1 0.85 107 PPM 144363 01:13:27.0 +05:52:15 9.8 0.48 108 PPM 144392 01:15:12.6 +06:19:52 11.2 0.24 108 13UG17 01:15:08.9 +06:05:37 16.3 107 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
2.9 sigma about the mid-time.
The median site spacing is 24.7 km
RECON observability=1.0 and success probability=18.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Oroville | 08:13:57 | -63.2 | Dark | Up | 22.8 | 251.9 | Low | 07:58:57 - 08:28:57 | -116 |
| Tonasket | 08:13:57 | -63.5 | Dark | Up | 22.9 | 252.0 | Low | 07:58:57 - 08:28:57 | -139 |
| Okanogan | 08:13:56 | -63.8 | Dark | Up | 23.1 | 252.0 | Low | 07:58:56 - 08:28:56 | -171 |
| Brewster | 08:13:56 | -64.1 | Dark | Up | 23.3 | 252.0 | Low | 07:58:56 - 08:28:56 | -196 |
| Manson/Chelan | 08:13:56 | -64.4 | Dark | Up | 23.6 | 251.8 | Low | 07:58:56 - 08:28:56 | -215 |
| Entiat | 08:13:56 | -64.6 | Dark | Up | 23.7 | 251.8 | Low | 07:58:56 - 08:28:56 | -236 |
| Wenatchee | 08:13:55 | -64.9 | Dark | Up | 23.8 | 251.8 | Low | 07:58:55 - 08:28:55 | -261 |
| Ellensburg | 08:13:54 | -65.3 | Dark | Up | 24.1 | 251.8 | Low | 07:58:54 - 08:28:54 | -300 |
| Yakima | 08:13:54 | -65.7 | Dark | Up | 24.3 | 252.0 | Low | 07:58:54 - 08:28:54 | -341 |
| Toppenish/White Swan | 08:13:52 | -65.9 | Dark | Up | 24.2 | 252.2 | Low | 07:58:52 - 08:28:52 | -364 |
| Pasco | 08:13:48 | -65.8 | Dark | Up | 23.4 | 253.3 | Low | 07:58:48 - 08:28:48 | -385 |
| PNWRO | 08:13:46 | -66.0 | Dark | Up | 23.4 | 253.5 | Low | 07:58:46 - 08:28:46 | -411 |
| Goldendale | 08:13:52 | -66.5 | Dark | Up | 24.7 | 252.1 | Low | 07:58:52 - 08:28:52 | -416 |
| George/Umatilla | 08:13:48 | -66.2 | Dark | Up | 23.7 | 253.2 | Low | 07:58:48 - 08:28:48 | -417 |
| The Dalles | 08:13:53 | -66.8 | Dark | Up | 25.0 | 251.9 | Low | 07:58:53 - 08:28:53 | -436 |
| Maupin | 08:13:51 | -67.2 | Dark | Up | 25.0 | 252.1 | Low | 07:58:51 - 08:28:51 | -479 |
| Madras/Culver | 08:13:50 | -67.7 | Dark | Up | 25.2 | 252.4 | Low | 07:58:50 - 08:28:50 | -535 |
| Sisters | 08:13:50 | -68.1 | Dark | Up | 25.7 | 252.1 | Low | 07:58:50 - 08:28:50 | -565 |
| Redmond | 08:13:49 | -68.1 | Dark | Up | 25.4 | 252.5 | Low | 07:58:49 - 08:28:49 | -571 |
| Bend | 08:13:49 | -68.3 | Dark | Up | 25.6 | 252.5 | Low | 07:58:49 - 08:28:49 | -591 |
| Oregon Observatory | 08:13:49 | -68.5 | Dark | Up | 25.7 | 252.4 | Low | 07:58:49 - 08:28:49 | -608 |
| La Pine/Gilchrist | 08:13:48 | -68.7 | Dark | Up | 25.8 | 252.5 | Low | 07:58:48 - 08:28:48 | -629 |
| North Lake | 08:13:46 | -69.0 | Dark | Up | 25.5 | 253.1 | Low | 07:58:46 - 08:28:46 | -678 |
| Paisley | 08:13:43 | -69.5 | Dark | Up | 25.4 | 253.7 | Low | 07:58:43 - 08:28:43 | -737 |
| Chiloquin | 08:13:47 | -69.8 | Dark | Up | 26.4 | 252.7 | Low | 07:58:47 - 08:28:47 | -740 |
| Klamath Falls | 08:13:46 | -70.2 | Dark | Up | 26.4 | 252.9 | Low | 07:58:46 - 08:28:46 | -776 |
| Lakeview | 08:13:41 | -70.0 | Dark | Up | 25.4 | 254.0 | Low | 07:58:41 - 08:28:41 | -791 |
| Tulelake | 08:13:44 | -70.4 | Dark | Up | 26.3 | 253.3 | Low | 07:58:44 - 08:28:44 | -806 |
| Cedarville | 08:13:39 | -70.6 | Dark | Up | 25.5 | 254.5 | Low | 07:58:39 - 08:28:39 | -861 |
| Fall River/Burney | 08:13:42 | -71.3 | Dark | Up | 26.5 | 253.8 | Low | 07:58:42 - 08:28:42 | -901 |
| Susanville | 08:13:38 | -71.7 | Dark | Up | 26.1 | 254.6 | Low | 07:58:38 - 08:28:38 | -973 |
| Greenville | 08:13:39 | -72.1 | Dark | Up | 26.4 | 254.5 | Low | 07:58:39 - 08:28:39 | -1000 |
| Gimple | 08:13:38 | -72.1 | Dark | Up | 26.4 | 254.6 | Low | 07:58:38 - 08:28:38 | -1001 |
| Quincy | 08:13:38 | -72.3 | Dark | Up | 26.5 | 254.6 | Low | 07:58:38 - 08:28:38 | -1021 |
| Portola | 08:13:36 | -72.3 | Dark | Up | 26.2 | 255.0 | Low | 07:58:36 - 08:28:36 | -1038 |
| Niwot | 08:12:56 | -65.6 | Dark | Up | 14.7 | 265.4 | Really Low | 07:57:56 - 08:27:56 | -1065 |
| Reno | 08:13:33 | -72.4 | Dark | Up | 25.8 | 255.6 | Low | 07:58:33 - 08:28:33 | -1071 |
| Carson City | 08:13:32 | -72.7 | Dark | Up | 25.8 | 255.8 | Low | 07:58:32 - 08:28:32 | -1109 |
| Yerington | 08:13:30 | -72.8 | Dark | Up | 25.4 | 256.4 | Low | 07:58:30 - 08:28:30 | -1134 |
| Gardnerville | 08:13:32 | -73.0 | Dark | Up | 25.9 | 256.0 | Low | 07:58:32 - 08:28:32 | -1135 |
| Hawthorne | 08:13:27 | -73.1 | Dark | Up | 25.1 | 256.9 | Low | 07:58:27 - 08:28:27 | -1187 |
| Lee Vining | 08:13:28 | -73.7 | Dark | Up | 25.6 | 256.9 | Low | 07:58:28 - 08:28:28 | -1244 |
| Tonopah | 08:13:21 | -73.0 | Dark | Up | 24.2 | 258.1 | Low | 07:58:21 - 08:28:21 | -1247 |
| Bishop | 08:13:24 | -74.1 | Dark | Up | 25.2 | 257.6 | Low | 07:58:24 - 08:28:24 | -1313 |
| Beatty | 08:13:18 | -73.9 | Dark | Up | 24.0 | 258.9 | Low | 07:58:18 - 08:28:18 | -1373 |
| Lone Pine | 08:13:22 | -74.6 | Dark | Up | 25.1 | 258.2 | Low | 07:58:22 - 08:28:22 | -1396 |
| Indian Springs | 08:13:14 | -73.7 | Dark | Up | 23.3 | 259.8 | Low | 07:58:14 - 08:28:14 | -1414 |
| Henderson | 08:13:11 | -73.8 | Dark | Up | 22.8 | 260.4 | Low | 07:58:11 - 08:28:11 | -1475 |
| CPSLO | 08:13:29 | -76.6 | Dark | Up | 27.4 | 257.1 | Low | 07:58:29 - 08:28:29 | -1515 |
| Searchlight/Boulder City | 08:13:10 | -74.2 | Dark | Up | 22.9 | 260.7 | Low | 07:58:10 - 08:28:10 | -1538 |
| Patrick | 08:13:06 | -73.7 | Dark | Up | 22.0 | 261.4 | Low | 07:58:06 - 08:28:06 | -1549 |
| Laughlin/Bullhead City | 08:13:08 | -74.3 | Dark | Up | 22.6 | 261.1 | Low | 07:58:08 - 08:28:08 | -1571 |
| Kingman/Dolan Springs | 08:13:07 | -74.0 | Dark | Up | 22.2 | 261.4 | Low | 07:58:07 - 08:28:07 | -1572 |
| DCO | 08:13:04 | -73.6 | Dark | Up | 21.5 | 262.0 | Low | 07:58:04 - 08:28:04 | -1585 |
| Mohave Valley | 08:13:08 | -74.5 | Dark | Up | 22.7 | 261.2 | Low | 07:58:08 - 08:28:08 | -1601 |
| Lake Havasu City | 08:13:06 | -74.7 | Dark | Up | 22.5 | 261.5 | Low | 07:58:06 - 08:28:06 | -1646 |
| Wildwood | 08:13:20 | -77.1 | Dark | Up | 26.1 | 259.0 | Low | 07:58:20 - 08:28:20 | -1662 |
| Parker | 08:13:06 | -74.9 | Dark | Up | 22.6 | 261.7 | Low | 07:58:06 - 08:28:06 | -1684 |
| Idyllwild | 08:13:13 | -76.5 | Dark | Up | 24.6 | 260.4 | Low | 07:58:13 - 08:28:13 | -1714 |
| Blythe | 08:13:06 | -75.5 | Dark | Up | 22.9 | 261.7 | Low | 07:58:06 - 08:28:06 | -1739 |
| Calipatria | 08:13:09 | -76.4 | Dark | Up | 23.7 | 261.3 | Low | 07:58:09 - 08:28:09 | -1787 |
| Yuma | 08:13:05 | -76.2 | Dark | Up | 23.1 | 262.1 | Low | 07:58:05 - 08:28:05 | -1839 |
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 13UG17, (2017/12/07 08:21UT) Object RA Dec mag sep mel Algenib 00:13:14.2 +15:11:01 2.8 17.56 117 80 Psc 01:08:21.9 +05:38:56 5.5 1.50 109 PPM 144454 01:17:35.6 +05:53:03 8.1 0.85 107 PPM 144363 01:12:31.1 +05:46:34 9.8 0.48 108 PPM 144392 01:14:16.6 +06:14:11 11.2 0.24 108 13UG17 01:14:12.9 +05:59:56 16.3 108 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:04:49 UT
Marc W. Buie, Southwest Research Institute