Event between (558168) 14XQ40 and star GA0660:06000250 with event index number of 2628945
Geocentric closest approach at 2023/05/10 08:32:23 UTC
J2000 position of star is 14:02:12.8 -23:56:14
Equinox of date position of star is 14:03:26.4 -24:02:30
Stellar brightness G=15.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 72 degrees from the moon.
Moon is 75% illuminated.
TNO apparent brightness V=22.1
[RECON map]
TNO is 20.8 AU from the Sun
and 19.8 AU from the Earth.
The TNO is moving 21.2
km/sec on the sky relative to the star, or,
5.3 arcsec/hr.
The 1-sigma error in the time of the event is 67 seconds.
The 1-sigma cross-track error in the shadow position is
1031 km.
The sky-plane scale is
14345.6 km/arcsec.
The TNO has an absolute magnitude Hv=8.9
Diameter=98.2 km assuming a 5% albedo -- 4.6 sec chord
Diameter=40.1 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
Star training set for 558168, (2023/05/10 08:32UT) Object RA Dec mag sep mel Spica 13:26:25.6 -11:16:57 1.0 15.51 86 5The Cen 14:08:04.0 -36:29:01 2.1 12.47 67 47 Hya 13:59:50.1 -25:05:07 5.2 1.33 73 PPM 262394 14:03:14.4 -23:29:15 8.2 0.57 72 PPM 262399 14:03:36.4 -23:55:12 9.2 0.13 72 558168 14:03:31.7 -24:02:56 15.7 72 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 3.2 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) |
| Dunrhomin | 08:32:06 | -28.1 | Dark | Up | 15.7 | 217.8 | Really Low | 08:26:00 - 08:38:12 | 4560 |
| Clarence Fulton | 08:33:16 | -21.6 | Dark | Down | 12.2 | 204.5 | Really Low | 08:27:10 - 08:39:22 | 4555 |
| Kelowna | 08:33:15 | -22.0 | Dark | Down | 12.6 | 204.4 | Really Low | 08:27:09 - 08:39:21 | 4547 |
| Penticton | 08:33:15 | -22.3 | Dark | Down | 12.9 | 204.4 | Really Low | 08:27:09 - 08:39:21 | 4541 |
| Peachland | 08:33:17 | -22.1 | Dark | Down | 12.8 | 204.2 | Really Low | 08:27:11 - 08:39:23 | 4540 |
| Summerland | 08:33:15 | -22.3 | Dark | Down | 12.9 | 204.3 | Really Low | 08:27:09 - 08:39:21 | 4540 |
| Anarchist Mountain Observatory | 08:33:13 | -22.8 | Dark | Down | 13.4 | 204.6 | Really Low | 08:27:07 - 08:39:19 | 4537 |
| Oliver | 08:33:15 | -22.7 | Dark | Down | 13.3 | 204.4 | Really Low | 08:27:09 - 08:39:21 | 4536 |
| Tonasket | 08:33:13 | -23.1 | Dark | Down | 13.7 | 204.5 | Really Low | 08:27:07 - 08:39:19 | 4531 |
| Okanogan | 08:33:12 | -23.5 | Dark | Down | 14.0 | 204.4 | Really Low | 08:27:06 - 08:39:18 | 4522 |
| Brewster | 08:33:12 | -23.8 | Dark | Down | 14.3 | 204.3 | Really Low | 08:27:06 - 08:39:18 | 4514 |
| Manson/Chelan | 08:33:13 | -24.0 | Dark | Down | 14.6 | 204.0 | Really Low | 08:27:07 - 08:39:19 | 4503 |
| Pasco | 08:33:06 | -25.5 | Dark | Up | 15.8 | 205.1 | Really Low | 08:27:00 - 08:39:12 | 4492 |
| PNWRO | 08:33:05 | -25.7 | Dark | Up | 16.0 | 205.3 | Really Low | 08:26:59 - 08:39:11 | 4492 |
| Wenatchee | 08:33:13 | -24.5 | Dark | Up | 15.1 | 203.9 | Really Low | 08:27:07 - 08:39:19 | 4491 |
| Ellensburg | 08:33:12 | -24.9 | Dark | Up | 15.5 | 203.7 | Really Low | 08:27:06 - 08:39:18 | 4480 |
| Yakima | 08:33:11 | -25.3 | Dark | Up | 15.9 | 203.7 | Really Low | 08:27:05 - 08:39:17 | 4471 |
| Toppenish/White Swan | 08:33:11 | -25.5 | Dark | Up | 16.1 | 203.9 | Really Low | 08:27:05 - 08:39:17 | 4470 |
| Goldendale | 08:33:11 | -26.1 | Dark | Up | 16.7 | 203.6 | Really Low | 08:27:05 - 08:39:17 | 4450 |
| Victoria | 08:33:25 | -23.7 | Dark | Down | 14.8 | 201.0 | Really Low | 08:27:19 - 08:39:31 | 4448 |
| The Dalles | 08:33:11 | -26.4 | Dark | Up | 17.0 | 203.3 | Really Low | 08:27:05 - 08:39:17 | 4437 |
| Maupin | 08:33:10 | -26.8 | Dark | Up | 17.4 | 203.4 | Really Low | 08:27:04 - 08:39:16 | 4430 |
| Redmond | 08:33:08 | -27.7 | Dark | Up | 18.2 | 203.5 | Really Low | 08:27:02 - 08:39:14 | 4407 |
| Sisters | 08:33:10 | -27.7 | Dark | Up | 18.3 | 203.1 | Really Low | 08:27:04 - 08:39:16 | 4399 |
| Bend | 08:33:08 | -27.9 | Dark | Up | 18.4 | 203.4 | Really Low | 08:27:02 - 08:39:14 | 4399 |
| Oregon Observatory | 08:33:08 | -28.1 | Dark | Up | 18.6 | 203.3 | Really Low | 08:27:02 - 08:39:14 | 4392 |
| North Lake | 08:33:05 | -28.7 | Dark | Up | 19.1 | 203.8 | Really Low | 08:26:59 - 08:39:11 | 4387 |
| La Pine/Gilchrist | 08:33:08 | -28.3 | Dark | Up | 18.9 | 203.2 | Really Low | 08:27:02 - 08:39:14 | 4386 |
| Paisley | 08:33:03 | -29.2 | Dark | Up | 19.5 | 204.2 | Really Low | 08:26:57 - 08:39:09 | 4380 |
| Lakeview | 08:33:01 | -29.7 | Dark | Up | 19.9 | 204.5 | Really Low | 08:26:55 - 08:39:07 | 4371 |
| Cedarville | 08:32:59 | -30.3 | Dark | Up | 20.4 | 204.7 | Low | 08:26:53 - 08:39:05 | 4356 |
| Chiloquin | 08:33:07 | -29.5 | Dark | Up | 20.0 | 203.1 | Really Low | 08:27:01 - 08:39:13 | 4348 |
| Klamath Falls | 08:33:06 | -29.8 | Dark | Up | 20.3 | 203.2 | Low | 08:27:00 - 08:39:12 | 4340 |
| Fall River/Burney | 08:33:02 | -30.9 | Dark | Up | 21.2 | 203.7 | Low | 08:26:56 - 08:39:08 | 4314 |
| Susanville | 08:32:58 | -31.5 | Dark | Up | 21.6 | 204.5 | Low | 08:26:52 - 08:39:04 | 4311 |
| Tonopah | 08:32:40 | -33.2 | Dark | Up | 22.6 | 208.0 | Low | 08:26:34 - 08:38:46 | 4308 |
| Reno | 08:32:53 | -32.2 | Dark | Up | 22.1 | 205.4 | Low | 08:26:47 - 08:38:59 | 4302 |
| Yerington | 08:32:49 | -32.7 | Dark | Up | 22.4 | 206.1 | Low | 08:26:43 - 08:38:55 | 4298 |
| Gimple | 08:32:58 | -31.8 | Dark | Up | 21.9 | 204.3 | Low | 08:26:52 - 08:39:04 | 4297 |
| Portola | 08:32:55 | -32.0 | Dark | Up | 22.1 | 204.7 | Low | 08:26:49 - 08:39:01 | 4296 |
| Greenville | 08:32:58 | -31.8 | Dark | Up | 21.9 | 204.2 | Low | 08:26:52 - 08:39:04 | 4296 |
| Hawthorne | 08:32:46 | -33.0 | Dark | Up | 22.6 | 206.6 | Low | 08:26:40 - 08:38:52 | 4294 |
| Carson City | 08:32:52 | -32.6 | Dark | Up | 22.4 | 205.4 | Low | 08:26:46 - 08:38:58 | 4291 |
| Quincy | 08:32:58 | -32.0 | Dark | Up | 22.1 | 204.3 | Low | 08:26:52 - 08:39:04 | 4289 |
| Indian Springs | 08:32:31 | -34.4 | Dark | Up | 23.3 | 209.6 | Low | 08:26:25 - 08:38:37 | 4285 |
| Gardnerville | 08:32:51 | -32.8 | Dark | Up | 22.6 | 205.5 | Low | 08:26:45 - 08:38:57 | 4284 |
| Henderson | 08:32:27 | -34.8 | Dark | Up | 23.5 | 210.3 | Low | 08:26:21 - 08:38:33 | 4278 |
| Patrick | 08:32:21 | -35.1 | Dark | Up | 23.6 | 211.5 | Low | 08:26:15 - 08:38:27 | 4276 |
| Beatty | 08:32:36 | -34.3 | Dark | Up | 23.4 | 208.6 | Low | 08:26:30 - 08:38:42 | 4275 |
| Lee Vining | 08:32:47 | -33.7 | Dark | Up | 23.3 | 206.3 | Low | 08:26:41 - 08:38:53 | 4264 |
| Kingman/Dolan Springs | 08:32:21 | -35.4 | Dark | Up | 23.8 | 211.3 | Low | 08:26:15 - 08:38:27 | 4264 |
| Bishop | 08:32:43 | -34.1 | Dark | Up | 23.6 | 207.0 | Low | 08:26:37 - 08:38:49 | 4258 |
| Laughlin/Bullhead City | 08:32:23 | -35.5 | Dark | Up | 24.1 | 210.9 | Low | 08:26:17 - 08:38:29 | 4252 |
| George/Scottsdale | 08:32:10 | -36.2 | Dark | Up | 24.1 | 213.6 | Low | 08:26:04 - 08:38:16 | 4244 |
| Mohave Valley | 08:32:22 | -35.8 | Dark | Up | 24.3 | 211.0 | Low | 08:26:16 - 08:38:28 | 4242 |
| Lake Havasu City | 08:32:21 | -36.1 | Dark | Up | 24.5 | 211.3 | Low | 08:26:15 - 08:38:27 | 4231 |
| Parker | 08:32:18 | -36.4 | Dark | Up | 24.8 | 211.4 | Low | 08:26:12 - 08:38:24 | 4217 |
| Blythe | 08:32:19 | -37.0 | Dark | Up | 25.4 | 211.2 | Low | 08:26:13 - 08:38:25 | 4190 |
| Idyllwild | 08:32:27 | -37.4 | Dark | Up | 26.2 | 209.3 | Low | 08:26:21 - 08:38:33 | 4153 |
| Calipatria | 08:32:22 | -37.7 | Dark | Up | 26.2 | 210.5 | Low | 08:26:16 - 08:38:28 | 4150 |
| Yuma | 08:32:17 | -37.9 | Dark | Up | 26.2 | 211.4 | Low | 08:26:11 - 08:38:23 | 4150 |
| CPSLO | 08:32:46 | -36.5 | Dark | Up | 26.2 | 205.4 | Low | 08:26:40 - 08:38:52 | 4127 |
| Wildwood | 08:32:34 | -37.4 | Dark | Up | 26.6 | 207.5 | Low | 08:26:28 - 08:38:40 | 4126 |
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 558168, (2023/05/10 08:32UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 15.51 86 5The Cen 14:06:40.0 -36:22:23 2.1 12.47 67 47 Hya 13:58:31.1 -24:58:21 5.2 1.33 73 PPM 262394 14:01:55.7 -23:22:32 8.2 0.57 72 PPM 262399 14:02:17.6 -23:48:30 9.2 0.13 72 558168 14:02:12.8 -23:56:14 15.7 72 Positions are for J2000
Event circumstances last updated at 2021/10/17 01:13:54 UT
Marc W. Buie, Southwest Research Institute