Event between (309239) 07RW10 and star GA0840:00196976 with event index number of 2186071
Geocentric closest approach at 2022/10/24 09:28:45 UTC
J2000 position of star is 02:28:58.5 -04:43:21
Equinox of date position of star is 02:30:07.0 -04:37:19
Stellar brightness G=13.0,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 158 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=21.8
[RECON map]
TNO is 31.5 AU from the Sun
and 30.6 AU from the Earth.
The TNO is moving 25.9
km/sec on the sky relative to the star, or,
4.2 arcsec/hr.
The 1-sigma error in the time of the event is 48 seconds.
The 1-sigma cross-track error in the shadow position is
1166 km.
The sky-plane scale is
22196.1 km/arcsec.
The TNO has an absolute magnitude Hv=6.8
Diameter=264.2 km assuming a 5% albedo -- 10.4 sec chord
Diameter=107.9 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is CENTAURR
Star training set for 309239, (2022/10/24 09:29UT) Object RA Dec mag sep mel Aldebaran 04:37:13.9 +16:33:12 0.8 37.88 128 68Omi Cet 02:20:30.0 -02:52:30 2.0 2.97 161 81 Cet 02:38:50.9 -03:17:55 5.6 2.55 156 PPM 184694 02:31:35.0 -04:55:51 8.1 0.48 157 PPM 184679 02:30:16.6 -04:25:53 9.5 0.19 158 309239 02:30:07.1 -04:37:18 13.0 158 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 21.7 km
RECON observability=1.0 and success probability=0.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 09:26:39 | -46.0 | Dark | Down | 32.7 | 200.1 | Up | 09:22:11 - 09:31:08 | 9466 |
| Victoria | 09:26:47 | -48.9 | Dark | Down | 35.4 | 197.0 | Up | 09:22:19 - 09:31:16 | 9414 |
| Peachland | 09:26:38 | -46.5 | Dark | Down | 33.5 | 201.0 | Up | 09:22:10 - 09:31:07 | 9384 |
| Kelowna | 09:26:38 | -46.3 | Dark | Down | 33.3 | 201.3 | Up | 09:22:09 - 09:31:06 | 9382 |
| Summerland | 09:26:38 | -46.6 | Dark | Down | 33.6 | 201.1 | Up | 09:22:10 - 09:31:07 | 9370 |
| Penticton | 09:26:38 | -46.6 | Dark | Down | 33.6 | 201.2 | Up | 09:22:09 - 09:31:06 | 9362 |
| Oliver | 09:26:38 | -46.9 | Dark | Down | 34.0 | 201.3 | Up | 09:22:09 - 09:31:06 | 9337 |
| Anarchist Mountain Observatory | 09:26:38 | -46.9 | Dark | Down | 34.1 | 201.6 | Up | 09:22:09 - 09:31:06 | 9320 |
| Tonasket | 09:26:38 | -47.2 | Dark | Down | 34.4 | 201.6 | Up | 09:22:09 - 09:31:06 | 9299 |
| Okanogan | 09:26:38 | -47.5 | Dark | Down | 34.7 | 201.5 | Up | 09:22:09 - 09:31:06 | 9280 |
| Brewster | 09:26:39 | -47.8 | Dark | Down | 35.0 | 201.3 | Up | 09:22:10 - 09:31:07 | 9267 |
| Manson/Chelan | 09:26:40 | -48.1 | Dark | Down | 35.3 | 201.0 | Up | 09:22:11 - 09:31:08 | 9265 |
| Wenatchee | 09:26:40 | -48.5 | Dark | Down | 35.8 | 200.9 | Up | 09:22:12 - 09:31:09 | 9236 |
| Ellensburg | 09:26:40 | -49.0 | Dark | Down | 36.2 | 200.7 | Up | 09:22:12 - 09:31:09 | 9213 |
| Yakima | 09:26:41 | -49.3 | Dark | Down | 36.6 | 200.8 | Up | 09:22:13 - 09:31:10 | 9184 |
| Toppenish/White Swan | 09:26:41 | -49.4 | Dark | Down | 36.8 | 201.1 | Up | 09:22:12 - 09:31:09 | 9163 |
| Sleaford | 09:26:08 | -38.7 | Dark | Down | 27.3 | 215.5 | Low | 09:21:40 - 09:30:37 | 9142 |
| Goldendale | 09:26:42 | -50.0 | Dark | Down | 37.4 | 200.7 | Up | 09:22:14 - 09:31:11 | 9137 |
| The Dalles | 09:26:43 | -50.3 | Dark | Down | 37.7 | 200.3 | Up | 09:22:15 - 09:31:12 | 9132 |
| Maupin | 09:26:43 | -50.6 | Dark | Down | 38.1 | 200.6 | Up | 09:22:15 - 09:31:12 | 9098 |
| PNWRO | 09:26:37 | -49.0 | Dark | Down | 36.7 | 203.0 | Up | 09:22:09 - 09:31:06 | 9086 |
| Sisters | 09:26:45 | -51.5 | Dark | Down | 39.0 | 200.2 | Up | 09:22:16 - 09:31:13 | 9050 |
| Bend | 09:26:44 | -51.6 | Dark | Down | 39.2 | 200.6 | Up | 09:22:16 - 09:31:13 | 9023 |
| Oregon Observatory | 09:26:45 | -51.8 | Dark | Down | 39.4 | 200.5 | Up | 09:22:16 - 09:31:13 | 9014 |
| North Lake | 09:26:44 | -52.0 | Dark | Down | 39.8 | 201.4 | Up | 09:22:15 - 09:31:12 | 8947 |
| Chiloquin | 09:26:47 | -52.9 | Dark | Down | 40.7 | 200.4 | Up | 09:22:18 - 09:31:15 | 8929 |
| Klamath Falls | 09:26:46 | -53.2 | Dark | Down | 41.0 | 200.6 | Up | 09:22:18 - 09:31:15 | 8899 |
| Lakeview | 09:26:43 | -52.5 | Dark | Down | 40.7 | 202.4 | Up | 09:22:14 - 09:31:11 | 8845 |
| Fall River/Burney | 09:26:47 | -53.8 | Dark | Down | 42.0 | 201.4 | Up | 09:22:18 - 09:31:15 | 8794 |
| Cedarville | 09:26:42 | -52.9 | Dark | Down | 41.2 | 202.8 | Up | 09:22:14 - 09:31:11 | 8787 |
| Susanville | 09:26:44 | -53.9 | Dark | Down | 42.4 | 202.6 | Up | 09:22:16 - 09:31:13 | 8716 |
| Greenville | 09:26:46 | -54.3 | Dark | Down | 42.7 | 202.3 | Up | 09:22:17 - 09:31:14 | 8705 |
| Gimple | 09:26:45 | -54.2 | Dark | Down | 42.7 | 202.4 | Up | 09:22:17 - 09:31:14 | 8702 |
| Quincy | 09:26:45 | -54.4 | Dark | Down | 42.9 | 202.4 | Up | 09:22:17 - 09:31:14 | 8689 |
| Portola | 09:26:44 | -54.2 | Dark | Down | 42.9 | 203.1 | Up | 09:22:16 - 09:31:13 | 8661 |
| Reno | 09:26:43 | -54.1 | Dark | Down | 42.9 | 204.0 | Up | 09:22:14 - 09:31:11 | 8616 |
| Carson City | 09:26:43 | -54.3 | Dark | Down | 43.2 | 204.2 | Up | 09:22:14 - 09:31:11 | 8586 |
| Gardnerville | 09:26:43 | -54.4 | Dark | Down | 43.4 | 204.3 | Up | 09:22:14 - 09:31:11 | 8564 |
| Yerington | 09:26:41 | -54.1 | Dark | Down | 43.2 | 205.0 | Up | 09:22:12 - 09:31:09 | 8546 |
| Hawthorne | 09:26:40 | -54.1 | Dark | Down | 43.5 | 205.9 | Up | 09:22:12 - 09:31:09 | 8488 |
| Lee Vining | 09:26:41 | -54.7 | Dark | Down | 44.1 | 205.5 | Up | 09:22:13 - 09:31:10 | 8460 |
| Tonopah | 09:26:36 | -53.5 | Dark | Down | 43.4 | 207.9 | Up | 09:22:08 - 09:31:05 | 8396 |
| Bishop | 09:26:40 | -54.7 | Dark | Down | 44.4 | 206.7 | Up | 09:22:11 - 09:31:08 | 8382 |
| Beatty | 09:26:36 | -53.9 | Dark | Down | 44.2 | 209.0 | Up | 09:22:07 - 09:31:04 | 8280 |
| Indian Springs | 09:26:33 | -53.4 | Dark | Down | 44.1 | 210.5 | Up | 09:22:04 - 09:31:01 | 8211 |
| Dunrhomin | 09:26:04 | -44.6 | Dark | Down | 36.3 | 220.8 | Up | 09:21:35 - 09:30:32 | 8148 |
| Henderson | 09:26:31 | -53.3 | Dark | Down | 44.3 | 211.7 | Up | 09:22:03 - 09:31:00 | 8138 |
| CU-SBO | 09:26:04 | -44.8 | Dark | Down | 36.6 | 220.8 | Up | 09:21:35 - 09:30:32 | 8129 |
| Wildwood | 09:26:43 | -56.8 | Dark | Down | 47.4 | 208.0 | Up | 09:22:14 - 09:31:11 | 8110 |
| Laughlin/Bullhead City | 09:26:31 | -53.5 | Dark | Down | 44.8 | 212.6 | Up | 09:22:02 - 09:30:59 | 8046 |
| Patrick | 09:26:28 | -52.9 | Dark | Down | 44.3 | 213.4 | Up | 09:22:00 - 09:30:57 | 8040 |
| Kingman/Dolan Springs | 09:26:29 | -53.1 | Dark | Down | 44.6 | 213.3 | Up | 09:22:01 - 09:30:58 | 8028 |
| Mohave Valley | 09:26:31 | -53.6 | Dark | Down | 45.0 | 212.8 | Up | 09:22:02 - 09:30:59 | 8021 |
| Idyllwild | 09:26:38 | -55.7 | Dark | Down | 46.9 | 210.7 | Up | 09:22:09 - 09:31:06 | 8004 |
| Lake Havasu City | 09:26:30 | -53.7 | Dark | Down | 45.3 | 213.3 | Up | 09:22:02 - 09:30:59 | 7976 |
| Parker | 09:26:30 | -53.8 | Dark | Down | 45.5 | 213.6 | Up | 09:22:02 - 09:30:59 | 7944 |
| Calipatria | 09:26:35 | -55.2 | Dark | Down | 47.0 | 212.6 | Up | 09:22:06 - 09:31:03 | 7902 |
| Yuma | 09:26:32 | -54.8 | Dark | Down | 46.9 | 214.0 | Up | 09:22:04 - 09:31:01 | 7828 |
| George/Scottsdale | 09:26:24 | -52.3 | Dark | Down | 44.7 | 216.8 | Up | 09:21:55 - 09:30:52 | 7811 |
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 309239, (2022/10/24 09:29UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 37.88 128 68Omi Cet 02:19:20.8 -02:58:45 2.0 2.97 161 81 Cet 02:37:41.9 -03:23:48 5.6 2.55 156 PPM 184694 02:30:26.4 -05:01:52 8.1 0.48 157 PPM 184679 02:29:07.9 -04:31:56 9.5 0.19 158 309239 02:28:58.5 -04:43:21 13.0 158 Positions are for J2000
Event circumstances last updated at 2022/10/10 04:15:40 UT
Marc W. Buie, Southwest Research Institute