Event between 13CD223 and star GA1020:03452655 with event index number of 1531507
Geocentric closest approach at 2026/01/30 08:15:06 UTC
J2000 position of star is 10:59:43.3 +12:14:32
Equinox of date position of star is 11:00:44.5 +12:08:15
Stellar brightness G=12.3,
use SENSEUP=16
Star is 65 degrees from the moon.
Moon is 91% illuminated.
TNO apparent brightness V=22.6
[RECON map]
TNO is 48.2 AU from the Sun
and 47.3 AU from the Earth.
The TNO is moving 22.0
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 283 seconds.
The 1-sigma cross-track error in the shadow position is
4438 km.
The sky-plane scale is
34323.5 km/arcsec.
The TNO has an absolute magnitude Hv=5.7
Diameter=434.5 km assuming a 5% albedo -- 19.5 sec chord
Diameter=177.4 km assuming a 30% albedo -- 8.0 sec chord
Dynamical classification is 3:2E
Star training set for 13CD223, (2026/01/30 08:15UT) Object RA Dec mag sep mel Regulus 10:09:45.6 +11:50:19 1.3 12.56 54 68Del Leo 11:15:29.4 +20:22:50 2.6 8.97 65 53 Leo 10:50:37.6 +10:24:24 5.3 3.08 64 PPM 127948 11:05:55.4 +12:31:34 7.0 1.25 66 PPM 127882 11:00:48.3 +11:45:20 9.2 0.35 65 PPM 127895 11:01:36.0 +12:14:55 10.2 0.19 65 13CD223 11:01:05.5 +12:06:07 12.3 66 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
3.2 sigma about the mid-time.
The median site spacing is 20.3 km
RECON observability=1.0 and success probability=10.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 08:17:53 | -57.7 | Dark | Up | 44.9 | 136.0 | Up | 08:02:53 - 08:32:53 | 450 |
| Summerland | 08:17:54 | -58.0 | Dark | Up | 45.0 | 135.4 | Up | 08:02:54 - 08:32:54 | 415 |
| Penticton | 08:17:53 | -58.1 | Dark | Up | 45.1 | 135.5 | Up | 08:02:53 - 08:32:53 | 411 |
| Okanagan Falls | 08:17:53 | -58.2 | Dark | Up | 45.2 | 135.3 | Up | 08:02:53 - 08:32:53 | 393 |
| Oliver | 08:17:53 | -58.4 | Dark | Up | 45.3 | 135.2 | Up | 08:02:53 - 08:32:53 | 377 |
| Anarchist Mountain Observatory | 08:17:53 | -58.6 | Dark | Up | 45.6 | 135.4 | Up | 08:02:53 - 08:32:53 | 365 |
| Oroville | 08:17:53 | -58.7 | Dark | Up | 45.6 | 135.2 | Up | 08:02:53 - 08:32:53 | 356 |
| Tonasket | 08:17:53 | -58.9 | Dark | Up | 45.7 | 135.0 | Up | 08:02:53 - 08:32:53 | 334 |
| Okanogan | 08:17:53 | -59.2 | Dark | Up | 45.9 | 134.6 | Up | 08:02:53 - 08:32:53 | 298 |
| Brewster | 08:17:54 | -59.5 | Dark | Up | 46.0 | 134.2 | Up | 08:02:54 - 08:32:54 | 267 |
| Manson/Chelan | 08:17:55 | -59.7 | Dark | Up | 46.0 | 133.6 | Up | 08:02:55 - 08:32:55 | 239 |
| Entiat | 08:17:55 | -59.9 | Dark | Up | 46.1 | 133.3 | Up | 08:02:55 - 08:32:55 | 216 |
| Wenatchee | 08:17:56 | -60.2 | Dark | Up | 46.2 | 133.0 | Up | 08:02:56 - 08:32:56 | 189 |
| Ellensburg | 08:17:56 | -60.6 | Dark | Up | 46.4 | 132.4 | Up | 08:02:56 - 08:32:56 | 144 |
| Yakima | 08:17:56 | -61.0 | Dark | Up | 46.6 | 132.1 | Up | 08:02:56 - 08:32:56 | 103 |
| Pasco | 08:17:52 | -61.3 | Dark | Up | 47.6 | 133.6 | Up | 08:02:52 - 08:32:52 | 101 |
| Toppenish/White Swan | 08:17:55 | -61.2 | Dark | Up | 46.9 | 132.1 | Up | 08:02:55 - 08:32:55 | 86 |
| PNWRO | 08:17:51 | -61.6 | Dark | Up | 47.9 | 133.7 | Up | 08:02:51 - 08:32:51 | 82 |
| George/Umatilla | 08:17:53 | -61.7 | Dark | Up | 47.7 | 133.0 | Up | 08:02:53 - 08:32:53 | 64 |
| Goldendale | 08:17:57 | -61.8 | Dark | Up | 47.0 | 131.2 | Up | 08:02:57 - 08:32:57 | 22 |
| The Dalles | 08:17:58 | -62.0 | Dark | Up | 47.0 | 130.5 | Up | 08:02:58 - 08:32:58 | -9 |
| Maupin | 08:17:57 | -62.4 | Dark | Up | 47.3 | 130.3 | Up | 08:02:57 - 08:32:57 | -48 |
| Madras/Culver | 08:17:57 | -63.0 | Dark | Up | 47.6 | 129.8 | Up | 08:02:57 - 08:32:57 | -104 |
| Niwot | 08:17:04 | -63.7 | Dark | Up | 58.7 | 148.3 | Up | 08:02:04 - 08:32:04 | -121 |
| SwRI | 08:17:04 | -63.8 | Dark | Up | 58.7 | 148.0 | Up | 08:02:04 - 08:32:04 | -134 |
| Redmond | 08:17:58 | -63.3 | Dark | Up | 47.8 | 129.5 | Up | 08:02:58 - 08:32:58 | -141 |
| Sisters | 08:17:59 | -63.3 | Dark | Up | 47.6 | 129.0 | Up | 08:02:59 - 08:32:59 | -147 |
| Bend | 08:17:58 | -63.6 | Dark | Up | 47.9 | 129.1 | Up | 08:02:58 - 08:32:58 | -165 |
| Oregon Observatory | 08:17:58 | -63.7 | Dark | Up | 47.9 | 128.8 | Up | 08:02:58 - 08:32:58 | -186 |
| La Pine/Gilchrist | 08:17:58 | -63.9 | Dark | Up | 48.0 | 128.5 | Up | 08:02:58 - 08:32:58 | -208 |
| North Lake | 08:17:56 | -64.4 | Dark | Up | 48.6 | 128.9 | Up | 08:02:56 - 08:32:56 | -238 |
| Paisley | 08:17:55 | -64.9 | Dark | Up | 49.2 | 128.8 | Up | 08:02:55 - 08:32:55 | -286 |
| Chiloquin | 08:17:59 | -65.0 | Dark | Up | 48.5 | 127.1 | Up | 08:02:59 - 08:32:59 | -328 |
| Lakeview | 08:17:55 | -65.4 | Dark | Up | 49.6 | 128.6 | Up | 08:02:55 - 08:32:55 | -333 |
| Klamath Falls | 08:17:59 | -65.4 | Dark | Up | 48.8 | 126.9 | Up | 08:02:59 - 08:32:59 | -361 |
| Tulelake | 08:17:58 | -65.7 | Dark | Up | 49.1 | 127.0 | Up | 08:02:58 - 08:32:58 | -382 |
| Cedarville | 08:17:54 | -66.1 | Dark | Up | 50.1 | 128.2 | Up | 08:02:54 - 08:32:54 | -395 |
| Fall River/Burney | 08:17:57 | -66.6 | Dark | Up | 49.7 | 126.3 | Up | 08:02:57 - 08:32:57 | -473 |
| Susanville | 08:17:55 | -67.2 | Dark | Up | 50.5 | 126.5 | Up | 08:02:55 - 08:32:55 | -520 |
| Gimple | 08:17:56 | -67.5 | Dark | Up | 50.5 | 126.0 | Up | 08:02:56 - 08:32:56 | -554 |
| Greenville | 08:17:56 | -67.5 | Dark | Up | 50.5 | 125.9 | Up | 08:02:56 - 08:32:56 | -556 |
| Quincy | 08:17:55 | -67.7 | Dark | Up | 50.6 | 125.7 | Up | 08:02:55 - 08:32:55 | -576 |
| Portola | 08:17:54 | -67.8 | Dark | Up | 51.0 | 126.2 | Up | 08:02:54 - 08:32:54 | -578 |
| Reno | 08:17:52 | -68.0 | Dark | Up | 51.5 | 126.7 | Up | 08:02:52 - 08:32:52 | -590 |
| Carson City | 08:17:52 | -68.4 | Dark | Up | 51.8 | 126.3 | Up | 08:02:52 - 08:32:52 | -626 |
| Yerington | 08:17:50 | -68.6 | Dark | Up | 52.3 | 126.9 | Up | 08:02:50 - 08:32:50 | -630 |
| Gardnerville | 08:17:52 | -68.6 | Dark | Up | 51.9 | 126.1 | Up | 08:02:52 - 08:32:52 | -650 |
| Hawthorne | 08:17:47 | -69.0 | Dark | Up | 52.9 | 127.1 | Up | 08:02:47 - 08:32:47 | -664 |
| Tonopah | 08:17:43 | -69.3 | Dark | Up | 54.0 | 128.3 | Up | 08:02:43 - 08:32:43 | -676 |
| Lee Vining | 08:17:49 | -69.6 | Dark | Up | 52.9 | 125.9 | Up | 08:02:49 - 08:32:49 | -735 |
| Bishop | 08:17:46 | -70.1 | Dark | Up | 53.7 | 126.1 | Up | 08:02:46 - 08:32:46 | -778 |
| Beatty | 08:17:40 | -70.3 | Dark | Up | 55.0 | 127.6 | Up | 08:02:40 - 08:32:40 | -782 |
| Indian Springs | 08:17:36 | -70.5 | Dark | Up | 55.9 | 128.7 | Up | 08:02:36 - 08:32:36 | -786 |
| Henderson | 08:17:34 | -70.8 | Dark | Up | 56.7 | 129.0 | Up | 08:02:34 - 08:32:34 | -821 |
| Lone Pine | 08:17:45 | -70.8 | Dark | Up | 54.4 | 125.7 | Up | 08:02:45 - 08:32:45 | -848 |
| Patrick | 08:17:29 | -71.1 | Dark | Up | 57.7 | 129.7 | Up | 08:02:29 - 08:32:29 | -853 |
| DCO | 08:17:27 | -71.2 | Dark | Up | 58.4 | 130.3 | Up | 08:02:27 - 08:32:27 | -864 |
| Searchlight/Boulder City | 08:17:33 | -71.3 | Dark | Up | 57.1 | 128.4 | Up | 08:02:33 - 08:32:33 | -879 |
| Kingman/Dolan Springs | 08:17:29 | -71.4 | Dark | Up | 57.8 | 129.2 | Up | 08:02:29 - 08:32:29 | -882 |
| Laughlin/Bullhead City | 08:17:32 | -71.5 | Dark | Up | 57.5 | 128.5 | Up | 08:02:32 - 08:32:32 | -899 |
| Mohave Valley | 08:17:31 | -71.8 | Dark | Up | 57.6 | 128.1 | Up | 08:02:31 - 08:32:31 | -927 |
| Lake Havasu City | 08:17:30 | -72.1 | Dark | Up | 58.0 | 128.0 | Up | 08:02:30 - 08:32:30 | -961 |
| Parker | 08:17:29 | -72.4 | Dark | Up | 58.3 | 127.5 | Up | 08:02:29 - 08:32:29 | -996 |
| CPSLO | 08:17:52 | -72.3 | Dark | Up | 53.3 | 121.1 | Up | 08:02:52 - 08:32:52 | -1050 |
| Blythe | 08:17:30 | -73.0 | Dark | Up | 58.4 | 126.5 | Up | 08:02:30 - 08:32:30 | -1059 |
| Idyllwild | 08:17:37 | -73.4 | Dark | Up | 56.9 | 123.9 | Up | 08:02:37 - 08:32:37 | -1108 |
| Wildwood | 08:17:45 | -73.4 | Dark | Up | 55.4 | 122.0 | Up | 08:02:45 - 08:32:45 | -1123 |
| Calipatria | 08:17:33 | -73.7 | Dark | Up | 58.0 | 124.6 | Up | 08:02:33 - 08:32:33 | -1137 |
| Yuma | 08:17:29 | -73.9 | Dark | Up | 58.9 | 125.2 | Up | 08:02:29 - 08:32:29 | -1156 |
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 13CD223, (2026/01/30 08:15UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 12.56 54 68Del Leo 11:14:06.7 +20:31:23 2.6 8.97 65 53 Leo 10:49:15.4 +10:32:42 5.3 3.08 64 PPM 127948 11:04:33.4 +12:40:02 7.0 1.25 66 PPM 127882 10:59:26.2 +11:53:45 9.2 0.35 65 PPM 127895 11:00:13.9 +12:23:21 10.2 0.19 65 13CD223 10:59:43.3 +12:14:32 12.3 65 Positions are for J2000
Event circumstances last updated at 2019/06/08 22:29:45 UT
Marc W. Buie, Southwest Research Institute