Event between 11QY100 and star GA0860:02114558 with event index number of 1587074
Geocentric closest approach at 2025/01/11 09:48:46 UTC
J2000 position of star is 07:02:30.7 -02:08:58
Equinox of date position of star is 07:03:34.8 -02:10:53
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 40 degrees from the moon.
Moon is 92% illuminated.
TNO apparent brightness V=21.3
[RECON map]
TNO is 20.3 AU from the Sun
and 19.4 AU from the Earth.
The TNO is moving 21.6
km/sec on the sky relative to the star, or,
5.5 arcsec/hr.
The 1-sigma error in the time of the event is 80 seconds.
The 1-sigma cross-track error in the shadow position is
889 km.
The sky-plane scale is
14067.5 km/arcsec.
The TNO has an absolute magnitude Hv=8.2
Diameter=137.4 km assuming a 5% albedo -- 6.4 sec chord
Diameter=56.1 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is CENTAURR
Star training set for 11QY100, (2025/01/11 09:49UT) Object RA Dec mag sep mel Sirius 06:46:15.2 -16:45:03 -1.5 15.19 50 2Bet CMa 06:23:48.1 -17:58:12 2.0 18.58 49 PPM 189689 06:56:14.3 -02:50:13 6.0 1.99 40 PPM 176634 07:04:13.4 -02:04:09 8.5 0.16 40 PPM 176625 07:03:37.0 -02:12:22 9.5 0.04 40 11QY100 07:03:46.5 -02:11:14 15.8 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
5.0 sigma about the mid-time.
The median site spacing is 19.3 km
RECON observability=1.0 and success probability=12.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Clarence Fulton | 09:48:03 | -55.1 | Dark | Up | 30.4 | 219.4 | Up | 09:40:51 - 09:55:14 | 2443 |
| Kelowna | 09:48:02 | -55.4 | Dark | Up | 30.7 | 219.4 | Up | 09:40:50 - 09:55:13 | 2419 |
| Peachland | 09:48:03 | -55.6 | Dark | Up | 30.9 | 219.1 | Up | 09:40:51 - 09:55:14 | 2409 |
| Summerland | 09:48:02 | -55.7 | Dark | Up | 31.0 | 219.3 | Up | 09:40:50 - 09:55:13 | 2402 |
| Penticton | 09:48:01 | -55.7 | Dark | Up | 31.0 | 219.4 | Up | 09:40:49 - 09:55:12 | 2399 |
| Oliver | 09:48:00 | -55.9 | Dark | Up | 31.3 | 219.5 | Up | 09:40:49 - 09:55:12 | 2379 |
| Anarchist Mountain Observatory | 09:47:59 | -56.0 | Dark | Up | 31.4 | 219.8 | Up | 09:40:48 - 09:55:11 | 2373 |
| Tonasket | 09:47:59 | -56.2 | Dark | Up | 31.6 | 219.8 | Up | 09:40:47 - 09:55:10 | 2353 |
| Okanogan | 09:47:58 | -56.5 | Dark | Up | 31.9 | 219.8 | Up | 09:40:47 - 09:55:10 | 2332 |
| Brewster | 09:47:58 | -56.8 | Dark | Up | 32.2 | 219.7 | Up | 09:40:46 - 09:55:09 | 2313 |
| Manson/Chelan | 09:47:58 | -57.1 | Dark | Up | 32.6 | 219.4 | Up | 09:40:47 - 09:55:10 | 2296 |
| Victoria | 09:48:09 | -58.1 | Dark | Up | 33.4 | 215.6 | Up | 09:40:57 - 09:55:20 | 2288 |
| Wenatchee | 09:47:58 | -57.6 | Dark | Up | 33.0 | 219.4 | Up | 09:40:46 - 09:55:09 | 2265 |
| Ellensburg | 09:47:57 | -57.9 | Dark | Up | 33.4 | 219.3 | Up | 09:40:46 - 09:55:09 | 2237 |
| Yakima | 09:47:56 | -58.2 | Dark | Up | 33.7 | 219.5 | Up | 09:40:45 - 09:55:08 | 2212 |
| Pasco | 09:47:51 | -57.7 | Dark | Up | 33.4 | 221.2 | Up | 09:40:39 - 09:55:02 | 2211 |
| Toppenish/White Swan | 09:47:55 | -58.3 | Dark | Up | 33.8 | 219.8 | Up | 09:40:44 - 09:55:07 | 2201 |
| PNWRO | 09:47:50 | -57.8 | Dark | Up | 33.4 | 221.5 | Up | 09:40:38 - 09:55:01 | 2200 |
| Goldendale | 09:47:55 | -58.9 | Dark | Up | 34.5 | 219.5 | Up | 09:40:43 - 09:55:06 | 2161 |
| The Dalles | 09:47:55 | -59.2 | Dark | Up | 34.8 | 219.2 | Up | 09:40:44 - 09:55:07 | 2141 |
| Maupin | 09:47:54 | -59.5 | Dark | Up | 35.1 | 219.5 | Up | 09:40:42 - 09:55:05 | 2116 |
| Redmond | 09:47:52 | -60.1 | Dark | Up | 35.8 | 219.8 | Up | 09:40:40 - 09:55:03 | 2057 |
| Sisters | 09:47:53 | -60.3 | Dark | Up | 36.0 | 219.4 | Up | 09:40:42 - 09:55:05 | 2053 |
| Bend | 09:47:52 | -60.3 | Dark | Up | 36.0 | 219.8 | Up | 09:40:40 - 09:55:03 | 2041 |
| Oregon Observatory | 09:47:52 | -60.5 | Dark | Up | 36.2 | 219.7 | Up | 09:40:40 - 09:55:03 | 2028 |
| La Pine/Gilchrist | 09:47:51 | -60.7 | Dark | Up | 36.4 | 219.7 | Up | 09:40:39 - 09:55:02 | 2013 |
| Dunrhomin | 09:46:54 | -51.8 | Dark | Up | 29.7 | 237.4 | Low | 09:39:43 - 09:54:06 | 2006 |
| North Lake | 09:47:48 | -60.6 | Dark | Up | 36.5 | 220.6 | Up | 09:40:37 - 09:55:00 | 1994 |
| Paisley | 09:47:46 | -60.8 | Dark | Up | 36.7 | 221.2 | Up | 09:40:34 - 09:54:57 | 1962 |
| Chiloquin | 09:47:49 | -61.6 | Dark | Up | 37.4 | 219.9 | Up | 09:40:38 - 09:55:01 | 1933 |
| Lakeview | 09:47:44 | -61.0 | Dark | Up | 37.0 | 221.7 | Up | 09:40:32 - 09:54:55 | 1931 |
| Klamath Falls | 09:47:48 | -61.8 | Dark | Up | 37.7 | 220.1 | Up | 09:40:37 - 09:55:00 | 1911 |
| Cedarville | 09:47:41 | -61.3 | Dark | Up | 37.4 | 222.2 | Up | 09:40:30 - 09:54:53 | 1889 |
| Fall River/Burney | 09:47:44 | -62.3 | Dark | Up | 38.4 | 221.1 | Up | 09:40:33 - 09:54:56 | 1836 |
| Susanville | 09:47:40 | -62.2 | Dark | Up | 38.5 | 222.3 | Up | 09:40:29 - 09:54:52 | 1803 |
| Gimple | 09:47:40 | -62.5 | Dark | Up | 38.8 | 222.2 | Up | 09:40:29 - 09:54:52 | 1780 |
| Greenville | 09:47:40 | -62.6 | Dark | Up | 38.8 | 222.1 | Up | 09:40:28 - 09:54:51 | 1779 |
| Quincy | 09:47:40 | -62.7 | Dark | Up | 39.0 | 222.2 | Up | 09:40:28 - 09:54:51 | 1764 |
| Portola | 09:47:38 | -62.5 | Dark | Up | 38.8 | 222.8 | Up | 09:40:27 - 09:54:50 | 1763 |
| Reno | 09:47:35 | -62.2 | Dark | Up | 38.7 | 223.6 | Up | 09:40:24 - 09:54:47 | 1754 |
| Carson City | 09:47:34 | -62.4 | Dark | Up | 38.9 | 223.9 | Up | 09:40:23 - 09:54:46 | 1729 |
| Yerington | 09:47:31 | -62.1 | Dark | Up | 38.8 | 224.6 | Up | 09:40:20 - 09:54:43 | 1725 |
| Gardnerville | 09:47:33 | -62.5 | Dark | Up | 39.1 | 224.0 | Up | 09:40:22 - 09:54:45 | 1712 |
| Hawthorne | 09:47:28 | -61.9 | Dark | Up | 38.8 | 225.5 | Up | 09:40:17 - 09:54:40 | 1699 |
| Tonopah | 09:47:22 | -61.2 | Dark | Up | 38.3 | 227.2 | Up | 09:40:11 - 09:54:34 | 1688 |
| Lee Vining | 09:47:29 | -62.5 | Dark | Up | 39.5 | 225.3 | Up | 09:40:17 - 09:54:40 | 1651 |
| Bishop | 09:47:25 | -62.3 | Dark | Up | 39.5 | 226.4 | Up | 09:40:13 - 09:54:36 | 1617 |
| Beatty | 09:47:18 | -61.4 | Dark | Up | 38.8 | 228.3 | Up | 09:40:07 - 09:54:30 | 1608 |
| Indian Springs | 09:47:14 | -60.7 | Dark | Up | 38.4 | 229.6 | Up | 09:40:02 - 09:54:25 | 1600 |
| Henderson | 09:47:10 | -60.4 | Dark | Up | 38.3 | 230.6 | Up | 09:39:59 - 09:54:22 | 1570 |
| Patrick | 09:47:05 | -59.8 | Dark | Up | 38.0 | 232.1 | Up | 09:39:53 - 09:54:16 | 1540 |
| Kingman/Dolan Springs | 09:47:05 | -60.0 | Dark | Up | 38.3 | 232.0 | Up | 09:39:54 - 09:54:17 | 1520 |
| Laughlin/Bullhead City | 09:47:07 | -60.4 | Dark | Up | 38.6 | 231.5 | Up | 09:39:55 - 09:54:18 | 1510 |
| Mohave Valley | 09:47:06 | -60.5 | Dark | Up | 38.8 | 231.7 | Up | 09:39:54 - 09:54:17 | 1489 |
| Lake Havasu City | 09:47:04 | -60.4 | Dark | Up | 38.9 | 232.2 | Up | 09:39:52 - 09:54:15 | 1462 |
| George/Scottsdale | 09:46:54 | -58.7 | Dark | Up | 37.7 | 235.0 | Up | 09:39:42 - 09:54:05 | 1439 |
| Parker | 09:47:03 | -60.5 | Dark | Up | 39.1 | 232.4 | Up | 09:39:51 - 09:54:14 | 1435 |
| CPSLO | 09:47:27 | -64.9 | Dark | Up | 42.2 | 225.2 | Up | 09:40:16 - 09:54:39 | 1422 |
| Blythe | 09:47:03 | -60.9 | Dark | Up | 39.6 | 232.5 | Up | 09:39:51 - 09:54:14 | 1389 |
| Idyllwild | 09:47:10 | -62.5 | Dark | Up | 40.9 | 230.3 | Up | 09:39:58 - 09:54:21 | 1366 |
| Wildwood | 09:47:17 | -63.8 | Dark | Up | 41.8 | 228.2 | Up | 09:40:06 - 09:54:29 | 1362 |
| Calipatria | 09:47:04 | -61.8 | Dark | Up | 40.5 | 231.9 | Up | 09:39:53 - 09:54:16 | 1335 |
| Yuma | 09:47:00 | -61.2 | Dark | Up | 40.2 | 233.1 | Up | 09:39:49 - 09:54:12 | 1315 |
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 11QY100, (2025/01/11 09:49UT) Object RA Dec mag sep mel Sirius 06:45:08.1 -16:43:23 -1.5 15.19 50 2Bet CMa 06:22:42.0 -17:57:21 2.0 18.58 49 PPM 189689 06:54:58.9 -02:48:13 6.0 1.99 40 PPM 176634 07:02:57.6 -02:01:52 8.5 0.16 40 PPM 176625 07:02:21.3 -02:10:05 9.5 0.04 40 11QY100 07:02:30.7 -02:08:58 15.8 40 Positions are for J2000
Event circumstances last updated at 2021/03/01 02:02:01 UT
Marc W. Buie, Southwest Research Institute