Event between (281371) 08FC76 and star GA0880:03141301 with event index number of 2457498
Geocentric closest approach at 2022/10/24 11:37:44 UTC
J2000 position of star is 07:45:52.0 -00:12:03
Equinox of date position of star is 07:47:01.8 -00:15:27
Stellar brightness G=16.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 82 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=21.1
[RECON map]
TNO is 13.3 AU from the Sun
and 13.2 AU from the Earth.
The TNO is moving 14.3
km/sec on the sky relative to the star, or,
5.4 arcsec/hr.
The 1-sigma error in the time of the event is 73 seconds.
The 1-sigma cross-track error in the shadow position is
1618 km.
The sky-plane scale is
9581.0 km/arcsec.
The TNO has an absolute magnitude Hv=9.5
Diameter=83.2 km assuming a 5% albedo -- 5.3 sec chord
Diameter=34.0 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
Star training set for 281371, (2022/10/24 11:38UT) Object RA Dec mag sep mel Sirius 06:46:09.2 -16:44:54 -1.5 22.29 95 Alhena 06:39:01.8 +16:22:40 1.9 23.62 100 13Zet CMi 07:52:52.9 +01:42:25 5.1 2.45 81 PPM 177121 07:49:53.2 -00:19:04 8.4 0.72 81 PPM 177090 07:46:13.7 -00:11:17 10.0 0.21 82 281371 07:47:02.0 -00:15:28 16.1 81 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 9.7 km
RECON observability=1.0 and success probability=14.4%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 11:31:47 | -21.0 | Dark | Down | 35.9 | 159.4 | Up | 11:25:10 - 11:38:24 | -1946 |
| Dunrhomin | 11:32:47 | -21.3 | Dark | Down | 47.1 | 156.8 | Up | 11:26:10 - 11:39:24 | -2350 |
| CU-SBO | 11:32:49 | -21.4 | Dark | Down | 47.3 | 156.5 | Up | 11:26:12 - 11:39:26 | -2368 |
| Kelowna | 11:31:44 | -29.8 | Dark | Down | 33.7 | 142.9 | Up | 11:25:07 - 11:38:21 | -2903 |
| Kamloops | 11:31:39 | -30.1 | Dark | Down | 32.7 | 142.2 | Up | 11:25:02 - 11:38:16 | -2910 |
| Penticton | 11:31:44 | -29.9 | Dark | Down | 33.9 | 142.6 | Up | 11:25:07 - 11:38:21 | -2928 |
| Peachland | 11:31:44 | -30.0 | Dark | Down | 33.7 | 142.5 | Up | 11:25:07 - 11:38:21 | -2928 |
| Summerland | 11:31:44 | -30.0 | Dark | Down | 33.8 | 142.5 | Up | 11:25:07 - 11:38:21 | -2931 |
| Anarchist Mountain Observatory | 11:31:47 | -30.0 | Dark | Down | 34.4 | 142.7 | Up | 11:25:10 - 11:38:24 | -2946 |
| Oliver | 11:31:47 | -30.0 | Dark | Down | 34.2 | 142.5 | Up | 11:25:10 - 11:38:24 | -2948 |
| Tonasket | 11:31:48 | -30.1 | Dark | Down | 34.6 | 142.5 | Up | 11:25:11 - 11:38:25 | -2968 |
| Okanogan | 11:31:50 | -30.3 | Dark | Down | 34.8 | 142.1 | Up | 11:25:13 - 11:38:27 | -2997 |
| Brewster | 11:31:51 | -30.5 | Dark | Down | 35.0 | 141.8 | Up | 11:25:14 - 11:38:28 | -3025 |
| Manson/Chelan | 11:31:51 | -30.8 | Dark | Down | 35.0 | 141.3 | Up | 11:25:14 - 11:38:28 | -3060 |
| PNWRO | 11:32:01 | -30.5 | Dark | Down | 37.0 | 141.9 | Up | 11:25:24 - 11:38:38 | -3086 |
| Wenatchee | 11:31:53 | -31.0 | Dark | Down | 35.3 | 140.9 | Up | 11:25:16 - 11:38:30 | -3099 |
| Ellensburg | 11:31:55 | -31.3 | Dark | Down | 35.5 | 140.5 | Up | 11:25:18 - 11:38:32 | -3137 |
| Yakima | 11:31:57 | -31.4 | Dark | Down | 35.8 | 140.3 | Up | 11:25:20 - 11:38:34 | -3161 |
| George/Scottsdale | 11:33:15 | -26.9 | Dark | Down | 50.2 | 143.9 | Up | 11:26:38 - 11:39:52 | -3163 |
| Toppenish/White Swan | 11:31:57 | -31.4 | Dark | Down | 36.1 | 140.4 | Up | 11:25:20 - 11:38:34 | -3163 |
| Victoria | 11:31:46 | -32.6 | Dark | Down | 33.1 | 138.0 | Up | 11:25:09 - 11:38:23 | -3221 |
| Goldendale | 11:31:59 | -31.8 | Dark | Down | 36.3 | 139.7 | Up | 11:25:22 - 11:38:36 | -3222 |
| Patrick | 11:33:02 | -28.5 | Dark | Down | 47.8 | 142.3 | Up | 11:26:25 - 11:39:39 | -3254 |
| The Dalles | 11:32:01 | -32.1 | Dark | Down | 36.3 | 139.2 | Up | 11:25:24 - 11:38:38 | -3259 |
| Maupin | 11:32:03 | -32.2 | Dark | Down | 36.7 | 139.1 | Up | 11:25:26 - 11:38:40 | -3276 |
| Kingman/Dolan Springs | 11:33:03 | -28.6 | Dark | Down | 47.9 | 141.9 | Up | 11:26:26 - 11:39:40 | -3279 |
| Henderson | 11:32:57 | -29.3 | Dark | Down | 46.8 | 141.3 | Up | 11:26:20 - 11:39:34 | -3314 |
| Laughlin/Bullhead City | 11:33:03 | -29.1 | Dark | Down | 47.7 | 141.3 | Up | 11:26:26 - 11:39:40 | -3322 |
| Lake Havasu City | 11:33:07 | -28.9 | Dark | Down | 48.3 | 141.1 | Up | 11:26:30 - 11:39:44 | -3332 |
| Mohave Valley | 11:33:05 | -29.1 | Dark | Down | 47.9 | 141.1 | Up | 11:26:28 - 11:39:42 | -3334 |
| Indian Springs | 11:32:53 | -29.8 | Dark | Down | 46.0 | 140.8 | Up | 11:26:16 - 11:39:30 | -3343 |
| Parker | 11:33:11 | -28.9 | Dark | Down | 48.6 | 140.9 | Up | 11:26:34 - 11:39:48 | -3345 |
| Bend | 11:32:08 | -32.6 | Dark | Down | 37.4 | 138.3 | Up | 11:25:31 - 11:38:45 | -3357 |
| Sisters | 11:32:07 | -32.7 | Dark | Down | 37.1 | 138.1 | Up | 11:25:30 - 11:38:44 | -3360 |
| Oregon Observatory | 11:32:09 | -32.8 | Dark | Down | 37.5 | 138.1 | Up | 11:25:32 - 11:38:46 | -3375 |
| North Lake | 11:32:12 | -32.6 | Dark | Down | 38.2 | 138.4 | Up | 11:25:35 - 11:38:49 | -3376 |
| Tonopah | 11:32:43 | -30.8 | Dark | Down | 44.1 | 139.8 | Up | 11:26:06 - 11:39:20 | -3389 |
| Lakeview | 11:32:19 | -32.4 | Dark | Down | 39.3 | 138.4 | Up | 11:25:42 - 11:38:56 | -3398 |
| Beatty | 11:32:50 | -30.6 | Dark | Down | 45.2 | 139.6 | Up | 11:26:13 - 11:39:27 | -3412 |
| Cedarville | 11:32:22 | -32.4 | Dark | Down | 39.9 | 138.3 | Up | 11:25:45 - 11:38:59 | -3422 |
| Yuma | 11:33:19 | -29.3 | Dark | Down | 49.6 | 139.5 | Up | 11:26:42 - 11:39:56 | -3439 |
| Hawthorne | 11:32:39 | -31.9 | Dark | Down | 43.0 | 138.4 | Up | 11:26:02 - 11:39:16 | -3472 |
| Chiloquin | 11:32:14 | -33.4 | Dark | Down | 38.3 | 136.9 | Up | 11:25:37 - 11:38:51 | -3479 |
| Yerington | 11:32:36 | -32.2 | Dark | Down | 42.3 | 138.0 | Up | 11:25:59 - 11:39:13 | -3486 |
| Calipatria | 11:33:14 | -30.0 | Dark | Down | 48.8 | 138.6 | Up | 11:26:37 - 11:39:51 | -3493 |
| Klamath Falls | 11:32:14 | -33.4 | Dark | Down | 38.6 | 136.8 | Up | 11:25:37 - 11:38:51 | -3493 |
| Reno | 11:32:34 | -32.6 | Dark | Down | 41.6 | 137.6 | Up | 11:25:57 - 11:39:11 | -3505 |
| Bishop | 11:32:47 | -31.9 | Dark | Down | 44.0 | 138.0 | Up | 11:26:10 - 11:39:24 | -3514 |
| Susanville | 11:32:27 | -33.0 | Dark | Down | 40.5 | 137.1 | Up | 11:25:50 - 11:39:04 | -3517 |
| Carson City | 11:32:34 | -32.6 | Dark | Down | 41.9 | 137.4 | Up | 11:25:57 - 11:39:11 | -3522 |
| Gardnerville | 11:32:36 | -32.7 | Dark | Down | 42.1 | 137.3 | Up | 11:25:59 - 11:39:13 | -3532 |
| Fall River/Burney | 11:32:23 | -33.4 | Dark | Down | 39.6 | 136.7 | Up | 11:25:46 - 11:39:00 | -3534 |
| Portola | 11:32:30 | -33.0 | Dark | Down | 41.0 | 137.0 | Up | 11:25:53 - 11:39:07 | -3537 |
| Lee Vining | 11:32:42 | -32.3 | Dark | Down | 43.1 | 137.5 | Up | 11:26:05 - 11:39:19 | -3537 |
| Gimple | 11:32:28 | -33.3 | Dark | Down | 40.6 | 136.7 | Up | 11:25:51 - 11:39:05 | -3547 |
| Greenville | 11:32:28 | -33.3 | Dark | Down | 40.5 | 136.7 | Up | 11:25:51 - 11:39:05 | -3553 |
| Idyllwild | 11:33:09 | -31.0 | Dark | Down | 47.6 | 137.6 | Up | 11:26:32 - 11:39:46 | -3561 |
| Quincy | 11:32:29 | -33.4 | Dark | Down | 40.7 | 136.5 | Up | 11:25:52 - 11:39:06 | -3564 |
| Wildwood | 11:33:04 | -32.5 | Dark | Down | 46.3 | 135.6 | Up | 11:26:27 - 11:39:41 | -3694 |
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, (2022/10/24 11:38UT) Object RA Dec mag sep mel Sirius 06:45:08.0 -16:43:24 -1.5 22.29 95 Alhena 06:37:42.8 +16:23:57 1.9 23.62 100 13Zet CMi 07:51:42.0 +01:46:01 5.1 2.45 81 PPM 177121 07:48:43.2 -00:15:34 8.4 0.72 81 PPM 177090 07:45:03.6 -00:07:54 10.0 0.21 82 281371 07:45:52.0 -00:12:03 16.1 82 Positions are for J2000
Event circumstances last updated at 2022/10/02 04:09:02 UT
Marc W. Buie, Southwest Research Institute