Event between (281371) 08FC76 and star GA0880:03097739 with event index number of 2457523
Geocentric closest approach at 2022/12/08 06:30:52 UTC
J2000 position of star is 07:42:32.7 -01:26:41
Equinox of date position of star is 07:43:42.0 -01:29:59
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 47 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=20.9
[RECON map]
TNO is 13.3 AU from the Sun
and 12.7 AU from the Earth.
The TNO is moving 17.9
km/sec on the sky relative to the star, or,
7.0 arcsec/hr.
The 1-sigma error in the time of the event is 90 seconds.
The 1-sigma cross-track error in the shadow position is
1084 km.
The sky-plane scale is
9177.1 km/arcsec.
The TNO has an absolute magnitude Hv=9.5
Diameter=83.2 km assuming a 5% albedo -- 4.2 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
Star training set for 281371, (2022/12/08 06:31UT) Object RA Dec mag sep mel Sirius 06:46:09.5 -16:44:55 -1.5 20.81 49 15Rho Pup 08:08:31.3 -24:22:18 2.8 23.64 67 25 Mon 07:38:25.1 -04:09:50 5.1 2.97 48 PPM 177055 07:42:28.4 -01:35:47 8.0 0.32 47 PPM 177067 07:43:53.7 -01:38:03 10.0 0.14 47 281371 07:43:42.5 -01:30:01 16.7 47 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 20.0 km
RECON observability=0.5 and success probability=0.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 06:32:02 | -57.9 | Dark | Up | 16.7 | 114.1 | Really Low | 06:24:02 - 06:40:02 | 5675 |
| Victoria | 06:32:02 | -58.2 | Dark | Up | 15.7 | 111.0 | Really Low | 06:24:02 - 06:40:02 | 5645 |
| Peachland | 06:32:02 | -58.9 | Dark | Up | 17.5 | 114.3 | Really Low | 06:24:02 - 06:40:02 | 5637 |
| Kelowna | 06:32:02 | -58.9 | Dark | Up | 17.6 | 114.6 | Really Low | 06:24:02 - 06:40:02 | 5636 |
| Summerland | 06:32:02 | -59.0 | Dark | Up | 17.6 | 114.4 | Really Low | 06:24:02 - 06:40:02 | 5631 |
| Penticton | 06:32:02 | -59.1 | Dark | Up | 17.7 | 114.5 | Really Low | 06:24:02 - 06:40:02 | 5627 |
| Oliver | 06:32:02 | -59.4 | Dark | Up | 17.8 | 114.4 | Really Low | 06:24:02 - 06:40:02 | 5615 |
| Anarchist Mountain Observatory | 06:32:02 | -59.6 | Dark | Up | 18.0 | 114.5 | Really Low | 06:24:02 - 06:40:02 | 5607 |
| Tonasket | 06:32:02 | -59.8 | Dark | Up | 18.1 | 114.3 | Really Low | 06:24:02 - 06:40:02 | 5597 |
| Okanogan | 06:32:02 | -60.0 | Dark | Up | 18.1 | 114.1 | Really Low | 06:24:02 - 06:40:02 | 5588 |
| Brewster | 06:32:02 | -60.2 | Dark | Up | 18.1 | 113.8 | Really Low | 06:24:02 - 06:40:02 | 5581 |
| Manson/Chelan | 06:32:02 | -60.2 | Dark | Up | 18.0 | 113.5 | Really Low | 06:24:02 - 06:40:02 | 5580 |
| Wenatchee | 06:32:02 | -60.5 | Dark | Up | 18.1 | 113.2 | Really Low | 06:24:02 - 06:40:02 | 5567 |
| Ellensburg | 06:32:02 | -60.7 | Dark | Up | 18.1 | 112.9 | Really Low | 06:24:02 - 06:40:02 | 5557 |
| Yakima | 06:32:02 | -61.0 | Dark | Up | 18.2 | 112.7 | Really Low | 06:24:02 - 06:40:02 | 5543 |
| Sleaford | 06:31:32 | -60.3 | Dark | Up | 23.7 | 127.4 | Low | 06:23:32 - 06:39:32 | 5519 |
| Toppenish/White Swan | 06:32:32 | -61.3 | Dark | Up | 18.5 | 112.9 | Really Low | 06:24:32 - 06:40:32 | 5505 |
| PNWRO | 06:32:02 | -62.2 | Dark | Up | 19.5 | 113.9 | Really Low | 06:24:02 - 06:40:02 | 5496 |
| Goldendale | 06:32:37 | -61.5 | Dark | Up | 18.4 | 112.4 | Really Low | 06:24:37 - 06:40:37 | 5487 |
| The Dalles | 06:32:38 | -61.5 | Dark | Up | 18.3 | 112.1 | Really Low | 06:24:38 - 06:40:38 | 5481 |
| Maupin | 06:32:40 | -61.8 | Dark | Up | 18.5 | 112.0 | Really Low | 06:24:40 - 06:40:40 | 5462 |
| Sisters | 06:32:45 | -62.2 | Dark | Up | 18.5 | 111.4 | Really Low | 06:24:45 - 06:40:45 | 5428 |
| Bend | 06:32:46 | -62.5 | Dark | Up | 18.8 | 111.5 | Really Low | 06:24:46 - 06:40:46 | 5414 |
| Oregon Observatory | 06:32:48 | -62.6 | Dark | Up | 18.8 | 111.4 | Really Low | 06:24:48 - 06:40:48 | 5408 |
| North Lake | 06:32:51 | -63.3 | Dark | Up | 19.4 | 111.6 | Really Low | 06:24:51 - 06:40:51 | 5370 |
| Chiloquin | 06:32:56 | -63.3 | Dark | Up | 19.0 | 110.6 | Really Low | 06:24:56 - 06:40:56 | 5350 |
| Klamath Falls | 06:32:58 | -63.5 | Dark | Up | 19.2 | 110.6 | Really Low | 06:24:58 - 06:40:58 | 5332 |
| Lakeview | 06:32:53 | -64.3 | Dark | Up | 20.2 | 111.7 | Low | 06:24:53 - 06:40:53 | 5311 |
| Cedarville | 06:32:58 | -64.9 | Dark | Up | 20.6 | 111.6 | Low | 06:24:58 - 06:40:58 | 5275 |
| Fall River/Burney | 06:33:02 | -64.5 | Dark | Up | 19.9 | 110.5 | Really Low | 06:25:02 - 06:41:02 | 5266 |
| Susanville | 06:33:03 | -65.4 | Dark | Up | 20.6 | 110.9 | Low | 06:25:03 - 06:41:03 | 5224 |
| Greenville | 06:33:06 | -65.4 | Dark | Up | 20.5 | 110.5 | Low | 06:25:06 - 06:41:06 | 5213 |
| Gimple | 06:33:05 | -65.4 | Dark | Up | 20.6 | 110.6 | Low | 06:25:05 - 06:41:05 | 5211 |
| Quincy | 06:33:07 | -65.5 | Dark | Up | 20.6 | 110.5 | Low | 06:25:07 - 06:41:07 | 5202 |
| Portola | 06:33:06 | -65.9 | Dark | Up | 21.0 | 110.8 | Low | 06:25:06 - 06:41:06 | 5189 |
| Reno | 06:33:07 | -66.4 | Dark | Up | 21.6 | 111.2 | Low | 06:25:07 - 06:41:07 | 5165 |
| Carson City | 06:33:07 | -66.7 | Dark | Up | 21.7 | 111.1 | Low | 06:25:07 - 06:41:07 | 5145 |
| Gardnerville | 06:33:09 | -66.8 | Dark | Up | 21.8 | 111.0 | Low | 06:25:09 - 06:41:09 | 5131 |
| Yerington | 06:33:08 | -67.2 | Dark | Up | 22.2 | 111.5 | Low | 06:25:08 - 06:41:08 | 5125 |
| Hawthorne | 06:33:09 | -67.8 | Dark | Up | 22.8 | 111.7 | Low | 06:25:09 - 06:41:09 | 5091 |
| Lee Vining | 06:33:13 | -67.9 | Dark | Up | 22.7 | 111.1 | Low | 06:25:13 - 06:41:13 | 5066 |
| Tonopah | 06:33:08 | -68.9 | Dark | Up | 24.0 | 112.6 | Low | 06:25:08 - 06:41:08 | 5042 |
| Bishop | 06:33:14 | -68.7 | Dark | Up | 23.4 | 111.4 | Low | 06:25:14 - 06:41:14 | 5020 |
| Beatty | 06:33:11 | -70.0 | Dark | Up | 24.8 | 112.4 | Low | 06:25:11 - 06:41:11 | 4966 |
| Dunrhomin | 06:32:02 | -71.9 | Dark | Up | 31.0 | 123.2 | Up | 06:24:02 - 06:40:02 | 4961 |
| CU-SBO | 06:32:02 | -72.2 | Dark | Up | 31.1 | 123.0 | Up | 06:24:02 - 06:40:02 | 4951 |
| Indian Springs | 06:33:11 | -70.8 | Dark | Up | 25.7 | 113.1 | Low | 06:25:11 - 06:41:11 | 4928 |
| Henderson | 06:33:12 | -71.6 | Dark | Up | 26.4 | 113.4 | Low | 06:25:12 - 06:41:12 | 4883 |
| Patrick | 06:33:12 | -72.7 | Dark | Up | 27.5 | 113.9 | Low | 06:25:12 - 06:41:12 | 4824 |
| Wildwood | 06:33:29 | -70.4 | Dark | Up | 24.5 | 110.0 | Low | 06:25:29 - 06:41:29 | 4823 |
| Laughlin/Bullhead City | 06:33:14 | -72.4 | Dark | Up | 27.1 | 113.3 | Low | 06:25:14 - 06:41:14 | 4821 |
| Kingman/Dolan Springs | 06:33:12 | -72.7 | Dark | Up | 27.5 | 113.7 | Low | 06:25:12 - 06:41:12 | 4814 |
| Mohave Valley | 06:33:16 | -72.6 | Dark | Up | 27.2 | 113.2 | Low | 06:25:16 - 06:41:16 | 4804 |
| Lake Havasu City | 06:33:16 | -73.1 | Dark | Up | 27.6 | 113.1 | Low | 06:25:16 - 06:41:16 | 4774 |
| Idyllwild | 06:33:26 | -71.9 | Dark | Up | 26.0 | 111.1 | Low | 06:25:26 - 06:41:26 | 4769 |
| Parker | 06:33:18 | -73.3 | Dark | Up | 27.7 | 113.0 | Low | 06:25:18 - 06:41:18 | 4751 |
| Calipatria | 06:33:26 | -73.1 | Dark | Up | 27.2 | 111.7 | Low | 06:25:26 - 06:41:26 | 4707 |
| George/Scottsdale | 06:33:13 | -75.1 | Dark | Up | 29.7 | 114.6 | Low | 06:25:13 - 06:41:13 | 4677 |
| Yuma | 06:33:25 | -74.0 | Dark | Up | 28.0 | 112.1 | Low | 06:25:25 - 06:41:25 | 4662 |
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 281371, (2022/12/08 06:31UT) Object RA Dec mag sep mel Sirius 06:45:08.0 -16:43:24 -1.5 20.81 49 15Rho Pup 08:07:32.5 -24:18:14 2.8 23.64 67 25 Mon 07:37:16.6 -04:06:39 5.1 2.97 48 PPM 177055 07:41:18.6 -01:32:30 8.0 0.32 47 PPM 177067 07:42:44.0 -01:34:43 10.0 0.14 47 281371 07:42:32.7 -01:26:41 16.7 47 Positions are for J2000
Event circumstances last updated at 2022/10/02 04:11:02 UT
Marc W. Buie, Southwest Research Institute