Event between 04VM131 and star GA1020:01538662 with event index number of 1985613
Geocentric closest approach at 2022/12/11 13:36:00 UTC
J2000 position of star is 06:13:25.2 +12:44:52
Equinox of date position of star is 06:14:42.0 +12:44:24
Stellar brightness G=14.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 28 degrees from the moon.
Moon is 90% illuminated.
TNO apparent brightness V=23.9
[RECON map]
TNO is 35.1 AU from the Sun
and 34.2 AU from the Earth.
The TNO is moving 24.5
km/sec on the sky relative to the star, or,
3.6 arcsec/hr.
The 1-sigma error in the time of the event is 609 seconds.
The 1-sigma cross-track error in the shadow position is
4308 km.
The sky-plane scale is
24782.2 km/arcsec.
The TNO has an absolute magnitude Hv=8.4
Diameter=127.6 km assuming a 5% albedo -- 5.2 sec chord
Diameter=52.1 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is CENTAURR
Star training set for 04VM131, (2022/12/11 13:36UT) Object RA Dec mag sep mel Betelgeuse 05:56:24.9 +07:24:34 0.4 6.98 35 Alhena 06:39:02.2 +16:22:40 1.9 6.92 21 73 Ori 06:17:02.3 +12:32:30 5.4 0.60 28 PPM 122171 06:16:26.9 +13:02:14 8.3 0.52 28 PPM 122087 06:13:35.3 +12:34:10 9.6 0.32 28 04VM131 06:14:42.7 +12:44:24 14.8 28 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
1.5 sigma about the mid-time.
The median site spacing is 24.9 km
RECON observability=0.7 and success probability=2.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 13:33:09 | -12.7 | AT | Up | 13.5 | 273.5 | Really Low | 13:18:09 - 13:48:09 | 10909 |
| Kamloops | 13:33:15 | -20.9 | Dark | Up | 22.6 | 262.5 | Low | 13:18:15 - 13:48:15 | 10599 |
| Kelowna | 13:33:11 | -20.2 | Dark | Up | 22.1 | 263.6 | Low | 13:18:11 - 13:48:11 | 10545 |
| Peachland | 13:33:10 | -20.4 | Dark | Up | 22.3 | 263.4 | Low | 13:18:10 - 13:48:10 | 10532 |
| Summerland | 13:33:10 | -20.3 | Dark | Up | 22.3 | 263.5 | Low | 13:18:10 - 13:48:10 | 10521 |
| Penticton | 13:33:09 | -20.2 | Dark | Up | 22.2 | 263.6 | Low | 13:18:09 - 13:48:09 | 10518 |
| Oliver | 13:33:09 | -20.1 | Dark | Up | 22.2 | 263.8 | Low | 13:18:09 - 13:48:09 | 10489 |
| Anarchist Mountain Observatory | 13:33:08 | -20.0 | Dark | Up | 22.1 | 264.0 | Low | 13:18:08 - 13:48:08 | 10478 |
| Tonasket | 13:33:07 | -19.9 | Dark | Up | 22.2 | 264.0 | Low | 13:18:07 - 13:48:07 | 10451 |
| Okanogan | 13:33:07 | -20.0 | Dark | Up | 22.4 | 264.1 | Low | 13:18:07 - 13:48:07 | 10421 |
| Brewster | 13:33:06 | -20.0 | Dark | Up | 22.5 | 264.0 | Low | 13:18:06 - 13:48:06 | 10395 |
| Victoria | 13:33:11 | -22.5 | Dark | Up | 24.8 | 261.0 | Low | 13:18:11 - 13:48:11 | 10382 |
| Manson/Chelan | 13:33:05 | -20.2 | Dark | Up | 22.8 | 263.8 | Low | 13:18:05 - 13:48:05 | 10373 |
| Wenatchee | 13:33:05 | -20.2 | Dark | Up | 23.0 | 263.9 | Low | 13:18:05 - 13:48:05 | 10331 |
| Ellensburg | 13:33:04 | -20.3 | Dark | Up | 23.1 | 263.9 | Low | 13:18:04 - 13:48:04 | 10293 |
| Yakima | 13:33:03 | -20.2 | Dark | Up | 23.2 | 264.0 | Low | 13:18:03 - 13:48:03 | 10258 |
| Toppenish/White Swan | 13:33:02 | -20.1 | Dark | Up | 23.1 | 264.3 | Low | 13:18:02 - 13:48:02 | 10241 |
| PNWRO | 13:32:59 | -19.0 | Dark | Up | 22.1 | 265.5 | Low | 13:17:59 - 13:47:59 | 10231 |
| Goldendale | 13:33:01 | -20.2 | Dark | Up | 23.5 | 264.2 | Low | 13:18:01 - 13:48:01 | 10188 |
| The Dalles | 13:33:01 | -20.4 | Dark | Up | 23.7 | 264.0 | Low | 13:18:01 - 13:48:01 | 10163 |
| Maupin | 13:32:59 | -20.3 | Dark | Up | 23.7 | 264.2 | Low | 13:17:59 - 13:47:59 | 10128 |
| Sisters | 13:32:57 | -20.4 | Dark | Up | 24.2 | 264.3 | Low | 13:17:57 - 13:47:57 | 10044 |
| Bend | 13:32:56 | -20.2 | Dark | Up | 24.0 | 264.6 | Low | 13:17:56 - 13:47:56 | 10027 |
| Oregon Observatory | 13:32:56 | -20.3 | Dark | Up | 24.1 | 264.5 | Low | 13:17:56 - 13:47:56 | 10010 |
| North Lake | 13:32:54 | -19.7 | Dark | Up | 23.8 | 265.2 | Low | 13:17:54 - 13:47:54 | 9961 |
| Dunrhomin | 13:32:32 | -7.7 | NT | Up | 12.1 | 276.6 | Really Low | 13:17:32 - 13:47:32 | 9955 |
| CU-SBO | 13:32:31 | -7.7 | NT | Up | 12.1 | 276.6 | Really Low | 13:17:31 - 13:47:31 | 9931 |
| Chiloquin | 13:32:53 | -20.3 | Dark | Up | 24.5 | 264.8 | Low | 13:17:53 - 13:47:53 | 9886 |
| Lakeview | 13:32:50 | -19.1 | Dark | Up | 23.5 | 266.1 | Low | 13:17:50 - 13:47:50 | 9874 |
| Klamath Falls | 13:32:52 | -20.1 | Dark | Up | 24.5 | 265.0 | Low | 13:17:52 - 13:47:52 | 9856 |
| Cedarville | 13:32:48 | -18.8 | Dark | Up | 23.4 | 266.5 | Low | 13:17:48 - 13:47:48 | 9817 |
| Fall River/Burney | 13:32:48 | -19.6 | Dark | Up | 24.3 | 265.8 | Low | 13:17:48 - 13:47:48 | 9754 |
| Susanville | 13:32:46 | -18.9 | Dark | Up | 23.8 | 266.6 | Low | 13:17:46 - 13:47:46 | 9708 |
| Gimple | 13:32:45 | -19.0 | Dark | Up | 24.0 | 266.6 | Low | 13:17:45 - 13:47:45 | 9679 |
| Greenville | 13:32:46 | -19.1 | Dark | Up | 24.1 | 266.5 | Low | 13:17:46 - 13:47:46 | 9677 |
| Quincy | 13:32:45 | -19.0 | Dark | Up | 24.1 | 266.6 | Low | 13:17:45 - 13:47:45 | 9659 |
| Portola | 13:32:44 | -18.6 | Dark | Up | 23.7 | 267.0 | Low | 13:17:44 - 13:47:44 | 9655 |
| Reno | 13:32:43 | -18.1 | Dark | Up | 23.2 | 267.5 | Low | 13:17:43 - 13:47:43 | 9640 |
| Carson City | 13:32:42 | -18.0 | AT | Up | 23.2 | 267.7 | Low | 13:17:42 - 13:47:42 | 9607 |
| Yerington | 13:32:41 | -17.4 | AT | Up | 22.8 | 268.2 | Low | 13:17:41 - 13:47:41 | 9599 |
| Gardnerville | 13:32:40 | -17.9 | AT | Up | 23.2 | 267.8 | Low | 13:17:40 - 13:47:40 | 9585 |
| Hawthorne | 13:32:39 | -16.9 | AT | Up | 22.4 | 268.7 | Low | 13:17:39 - 13:47:39 | 9564 |
| Tonopah | 13:32:36 | -15.7 | AT | Up | 21.3 | 269.8 | Low | 13:17:36 - 13:47:36 | 9544 |
| Lee Vining | 13:32:38 | -17.1 | AT | Up | 22.8 | 268.6 | Low | 13:17:38 - 13:47:38 | 9503 |
| Bishop | 13:32:35 | -16.4 | AT | Up | 22.2 | 269.3 | Low | 13:17:35 - 13:47:35 | 9459 |
| Beatty | 13:32:33 | -15.0 | AT | Up | 20.9 | 270.5 | Low | 13:17:33 - 13:47:33 | 9442 |
| Indian Springs | 13:32:30 | -14.1 | AT | Up | 20.1 | 271.2 | Low | 13:17:30 - 13:47:30 | 9430 |
| Henderson | 13:32:28 | -13.4 | AT | Up | 19.5 | 271.8 | Really Low | 13:17:28 - 13:47:28 | 9391 |
| Patrick | 13:32:26 | -12.4 | AT | Up | 18.6 | 272.7 | Really Low | 13:17:26 - 13:47:26 | 9351 |
| Kingman/Dolan Springs | 13:32:26 | -12.4 | AT | Up | 18.7 | 272.7 | Really Low | 13:17:26 - 13:47:26 | 9327 |
| Laughlin/Bullhead City | 13:32:26 | -12.8 | AT | Up | 19.1 | 272.4 | Really Low | 13:17:26 - 13:47:26 | 9315 |
| Mohave Valley | 13:32:26 | -12.7 | AT | Up | 19.1 | 272.5 | Really Low | 13:17:26 - 13:47:26 | 9289 |
| Lake Havasu City | 13:32:25 | -12.4 | AT | Up | 18.9 | 272.7 | Really Low | 13:17:25 - 13:47:25 | 9255 |
| George/Scottsdale | 13:32:21 | -10.2 | NT | Up | 16.8 | 274.3 | Really Low | 13:17:21 - 13:47:21 | 9225 |
| Parker | 13:32:24 | -12.3 | AT | Up | 18.9 | 272.9 | Really Low | 13:17:24 - 13:47:24 | 9221 |
| Wildwood | 13:32:29 | -15.6 | AT | Up | 22.4 | 270.5 | Low | 13:17:29 - 13:47:29 | 9140 |
| Idyllwild | 13:32:25 | -14.0 | AT | Up | 20.8 | 271.7 | Low | 13:17:25 - 13:47:25 | 9139 |
| Calipatria | 13:32:22 | -12.9 | AT | Up | 19.8 | 272.6 | Really Low | 13:17:22 - 13:47:22 | 9100 |
| Yuma | 13:32:21 | -12.1 | AT | Up | 19.1 | 273.2 | Really Low | 13:17:21 - 13:47:21 | 9074 |
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 04VM131, (2022/12/11 13:36UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 6.98 35 Alhena 06:37:42.8 +16:23:57 1.9 6.92 21 73 Ori 06:15:44.9 +12:33:03 5.4 0.60 28 PPM 122171 06:15:09.3 +13:02:46 8.3 0.52 28 PPM 122087 06:12:18.0 +12:34:36 9.6 0.32 28 04VM131 06:13:25.2 +12:44:52 14.8 28 Positions are for J2000
Event circumstances last updated at 2022/10/01 04:17:28 UT
Marc W. Buie, Southwest Research Institute