Event between (612688) 03UT292 and star GA0940:02556786 with event index number of 2817241
Geocentric closest approach at 2025/12/01 14:05:49 UTC
J2000 position of star is 07:08:28.4 +04:52:41
Equinox of date position of star is 07:09:39.5 +04:50:29
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 87 degrees from the moon.
Moon is 84% illuminated.
TNO apparent brightness V=21.6
[RECON map]
TNO is 27.7 AU from the Sun
and 27.0 AU from the Earth.
The TNO is moving 18.3
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 372 seconds.
The 1-sigma cross-track error in the shadow position is
2833 km.
The sky-plane scale is
19551.5 km/arcsec.
The TNO has an absolute magnitude Hv=7.1
Diameter=231.2 km assuming a 5% albedo -- 12.6 sec chord
Diameter=94.4 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is 3:2E
Star training set for 612688, (2025/12/01 14:06UT) Object RA Dec mag sep mel Betelgeuse 05:56:34.5 +07:24:35 0.4 18.39 69 Alhena 06:39:12.5 +16:22:30 1.9 13.77 78 PPM 151953 07:08:29.0 +04:52:06 5.9 0.34 87 PPM 152014 07:09:55.2 +04:21:00 7.9 0.49 87 PPM 151987 07:09:24.7 +04:36:53 9.7 0.25 87 PPM 152013 07:09:55.1 +04:44:04 10.2 0.10 87 612688 07:09:50.9 +04:50:07 13.0 87 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
2.4 sigma about the mid-time.
The median site spacing is 0.0 km
RECON observability=0.0 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) |
| Sleaford | 14:01:40 | -7.2 | NT | Down | 17.2 | 255.4 | Really Low | 13:46:40 - 14:16:40 | 7978 |
| Kamloops | 14:02:03 | -15.0 | AT | Down | 26.1 | 243.4 | Low | 13:47:03 - 14:17:03 | 7886 |
| Kelowna | 14:01:59 | -14.2 | AT | Down | 25.9 | 244.6 | Low | 13:46:59 - 14:16:59 | 7811 |
| Peachland | 14:01:59 | -14.4 | AT | Down | 26.1 | 244.3 | Low | 13:46:59 - 14:16:59 | 7802 |
| Summerland | 14:01:58 | -14.3 | AT | Down | 26.2 | 244.5 | Low | 13:46:58 - 14:16:58 | 7789 |
| Penticton | 14:01:58 | -14.2 | AT | Down | 26.1 | 244.6 | Low | 13:46:58 - 14:16:58 | 7782 |
| Oliver | 14:01:56 | -14.1 | AT | Down | 26.3 | 244.8 | Low | 13:46:56 - 14:16:56 | 7751 |
| Anarchist Mountain Observatory | 14:01:56 | -13.9 | AT | Down | 26.2 | 245.0 | Low | 13:46:56 - 14:16:56 | 7735 |
| Victoria | 14:02:05 | -16.3 | AT | Down | 28.8 | 241.6 | Low | 13:47:05 - 14:17:05 | 7709 |
| Tonasket | 14:01:55 | -13.9 | AT | Down | 26.4 | 245.1 | Low | 13:46:55 - 14:16:55 | 7708 |
| Okanogan | 14:01:54 | -13.9 | AT | Down | 26.6 | 245.1 | Low | 13:46:54 - 14:16:54 | 7678 |
| Brewster | 14:01:55 | -13.9 | AT | Down | 26.9 | 245.0 | Low | 13:46:55 - 14:16:55 | 7654 |
| Manson/Chelan | 14:01:55 | -14.1 | AT | Down | 27.2 | 244.8 | Low | 13:46:55 - 14:16:55 | 7637 |
| Wenatchee | 14:01:55 | -14.1 | AT | Down | 27.5 | 244.9 | Low | 13:46:55 - 14:16:55 | 7595 |
| Ellensburg | 14:01:53 | -14.1 | AT | Down | 27.8 | 244.9 | Low | 13:46:53 - 14:16:53 | 7558 |
| Yakima | 14:01:52 | -14.0 | AT | Down | 28.0 | 245.1 | Low | 13:46:52 - 14:16:52 | 7521 |
| Toppenish/White Swan | 14:01:50 | -13.8 | AT | Down | 28.0 | 245.3 | Low | 13:46:50 - 14:16:50 | 7500 |
| PNWRO | 14:01:47 | -12.7 | AT | Down | 27.2 | 246.8 | Low | 13:46:47 - 14:16:47 | 7460 |
| Goldendale | 14:01:51 | -13.9 | AT | Down | 28.5 | 245.2 | Low | 13:46:51 - 14:16:51 | 7451 |
| The Dalles | 14:01:52 | -14.1 | AT | Down | 28.8 | 245.0 | Low | 13:46:52 - 14:16:52 | 7432 |
| Maupin | 14:01:51 | -13.9 | AT | Down | 28.9 | 245.3 | Low | 13:46:51 - 14:16:51 | 7392 |
| Sisters | 14:01:49 | -14.0 | AT | Down | 29.6 | 245.3 | Low | 13:46:49 - 14:16:49 | 7313 |
| Bend | 14:01:48 | -13.8 | AT | Down | 29.5 | 245.6 | Low | 13:46:48 - 14:16:48 | 7289 |
| Oregon Observatory | 14:01:49 | -13.8 | AT | Down | 29.7 | 245.6 | Low | 13:46:49 - 14:16:49 | 7273 |
| North Lake | 14:01:45 | -13.2 | AT | Down | 29.6 | 246.4 | Low | 13:46:45 - 14:16:45 | 7210 |
| Chiloquin | 14:01:47 | -13.7 | AT | Down | 30.5 | 246.0 | Up | 13:46:47 - 14:16:47 | 7150 |
| Klamath Falls | 14:01:46 | -13.5 | AT | Down | 30.6 | 246.2 | Up | 13:46:46 - 14:16:46 | 7117 |
| Lakeview | 14:01:41 | -12.5 | AT | Down | 29.7 | 247.4 | Low | 13:46:41 - 14:16:41 | 7106 |
| Cedarville | 14:01:40 | -12.2 | AT | Down | 29.8 | 247.9 | Low | 13:46:40 - 14:16:40 | 7041 |
| Fall River/Burney | 14:01:42 | -12.9 | AT | Down | 30.8 | 247.2 | Up | 13:46:42 - 14:16:42 | 7000 |
| Susanville | 14:01:39 | -12.2 | AT | Down | 30.5 | 248.1 | Up | 13:46:39 - 14:16:39 | 6935 |
| Greenville | 14:01:38 | -12.3 | AT | Down | 30.9 | 248.0 | Up | 13:46:38 - 14:16:38 | 6910 |
| Gimple | 14:01:38 | -12.3 | AT | Down | 30.8 | 248.1 | Up | 13:46:38 - 14:16:38 | 6909 |
| Quincy | 14:01:39 | -12.3 | AT | Down | 30.9 | 248.1 | Up | 13:46:39 - 14:16:39 | 6890 |
| Dunrhomin | 14:01:03 | -1.4 | CT | Down | 19.4 | 259.7 | Really Low | 13:46:03 - 14:16:03 | 6880 |
| Portola | 14:01:37 | -11.9 | NT | Down | 30.6 | 248.6 | Up | 13:46:37 - 14:16:37 | 6875 |
| CU-SBO | 14:01:03 | -1.3 | CT | Down | 19.5 | 259.7 | Really Low | 13:46:03 - 14:16:03 | 6855 |
| Reno | 14:01:34 | -11.3 | NT | Down | 30.3 | 249.2 | Up | 13:46:34 - 14:16:34 | 6846 |
| Carson City | 14:01:34 | -11.2 | NT | Down | 30.4 | 249.5 | Up | 13:46:34 - 14:16:34 | 6810 |
| Yerington | 14:01:32 | -10.7 | NT | Down | 30.0 | 250.1 | Up | 13:46:32 - 14:16:32 | 6788 |
| Gardnerville | 14:01:34 | -11.1 | NT | Down | 30.4 | 249.6 | Up | 13:46:34 - 14:16:34 | 6785 |
| Hawthorne | 14:01:29 | -10.1 | NT | Down | 29.8 | 250.7 | Low | 13:46:29 - 14:16:29 | 6739 |
| Tonopah | 14:01:25 | -8.9 | NT | Down | 28.9 | 252.0 | Low | 13:46:25 - 14:16:25 | 6686 |
| Lee Vining | 14:01:30 | -10.3 | NT | Down | 30.3 | 250.6 | Up | 13:46:30 - 14:16:30 | 6685 |
| Bishop | 14:01:27 | -9.6 | NT | Down | 30.0 | 251.5 | Low | 13:46:27 - 14:16:27 | 6621 |
| Beatty | 14:01:21 | -8.2 | NT | Down | 28.9 | 253.0 | Low | 13:46:21 - 14:16:21 | 6568 |
| Indian Springs | 14:01:18 | -7.3 | NT | Down | 28.2 | 253.9 | Low | 13:46:18 - 14:16:18 | 6530 |
| Henderson | 14:01:15 | -6.6 | NT | Down | 27.8 | 254.7 | Low | 13:46:15 - 14:16:15 | 6474 |
| Patrick | 14:01:10 | -5.5 | CT | Down | 27.1 | 255.7 | Low | 13:46:10 - 14:16:10 | 6406 |
| Kingman/Dolan Springs | 14:01:10 | -5.6 | CT | Down | 27.3 | 255.7 | Low | 13:46:10 - 14:16:10 | 6384 |
| Laughlin/Bullhead City | 14:01:12 | -5.9 | CT | Down | 27.7 | 255.4 | Low | 13:46:12 - 14:16:12 | 6383 |
| Mohave Valley | 14:01:12 | -5.8 | CT | Down | 27.8 | 255.5 | Low | 13:46:12 - 14:16:12 | 6355 |
| Lake Havasu City | 14:01:11 | -5.5 | CT | Down | 27.7 | 255.9 | Low | 13:46:11 - 14:16:11 | 6313 |
| Wildwood | 14:01:21 | -8.6 | NT | Down | 31.2 | 253.2 | Up | 13:46:21 - 14:16:21 | 6289 |
| Parker | 14:01:10 | -5.3 | CT | Down | 27.7 | 256.1 | Low | 13:46:10 - 14:16:10 | 6276 |
| Idyllwild | 14:01:16 | -7.0 | NT | Down | 29.8 | 254.7 | Low | 13:46:16 - 14:16:16 | 6244 |
| George/Scottsdale | 14:01:03 | -3.3 | CT | Down | 25.9 | 257.9 | Low | 13:46:03 - 14:16:03 | 6226 |
| Calipatria | 14:01:11 | -5.9 | CT | Down | 29.0 | 255.8 | Low | 13:46:11 - 14:16:11 | 6175 |
| Yuma | 14:01:08 | -5.0 | CT | Down | 28.4 | 256.6 | Low | 13:46:08 - 14:16:08 | 6127 |
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 612688, (2025/12/01 14:06UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 18.39 69 Alhena 06:37:42.8 +16:23:56 1.9 13.77 78 PPM 151953 07:07:06.4 +04:54:37 5.9 0.34 87 PPM 152014 07:08:33.0 +04:23:34 7.9 0.49 87 PPM 151987 07:08:02.3 +04:39:27 9.7 0.25 87 PPM 152013 07:08:32.6 +04:46:38 10.2 0.10 87 612688 07:08:28.4 +04:52:41 13.0 87 Positions are for J2000
Event circumstances last updated at 2022/05/04 23:06:19 UT
Marc W. Buie, Southwest Research Institute