Event between 03WU188 and star GA1120:02905374 with event index number of 1185092
Geocentric closest approach at 2023/03/20 09:58:25 UTC
J2000 position of star is 07:49:02.1 +23:08:12
Equinox of date position of star is 07:50:21.6 +23:04:47
Stellar brightness G=16.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 133 degrees from the moon.
Moon is 3% illuminated.
TNO apparent brightness V=22.9
[RECON map]
TNO is 43.7 AU from the Sun
and 43.3 AU from the Earth.
The TNO is moving 8.9
km/sec on the sky relative to the star, or,
1.0 arcsec/hr.
The 1-sigma error in the time of the event is 575 seconds.
The 1-sigma cross-track error in the shadow position is
1810 km.
The sky-plane scale is
31383.1 km/arcsec.
The TNO has an absolute magnitude Hv=6.4
Diameter=322.1 km assuming a 5% albedo -- 36.1 sec chord
Diameter=131.5 km assuming a 30% albedo -- 14.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 03WU188, (2023/03/20 09:59UT) Object RA Dec mag sep mel Pollux 07:46:44.1 +27:58:06 1.1 4.96 132 82 Gem 07:49:56.7 +23:04:54 6.5 0.11 133 PPM 097994 07:50:30.0 +23:03:34 10.4 0.03 133 03WU188 07:50:25.2 +23:04:38 16.2 134 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
1.6 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 | 09:52:11 | -28.1 | Dark | Down | 10.8 | 294.0 | Really Low | 09:37:11 - 10:07:11 | 4833 |
| Kamloops | 09:51:42 | -35.0 | Dark | Down | 18.9 | 283.7 | Really Low | 09:36:42 - 10:06:42 | 4377 |
| Kelowna | 09:51:34 | -35.4 | Dark | Down | 18.2 | 284.6 | Really Low | 09:36:34 - 10:06:34 | 4355 |
| Peachland | 09:51:31 | -35.6 | Dark | Down | 18.4 | 284.4 | Really Low | 09:36:31 - 10:06:31 | 4340 |
| Summerland | 09:51:33 | -35.7 | Dark | Down | 18.3 | 284.5 | Really Low | 09:36:33 - 10:06:33 | 4334 |
| Penticton | 09:51:30 | -35.7 | Dark | Down | 18.2 | 284.6 | Really Low | 09:36:30 - 10:06:30 | 4333 |
| Oliver | 09:51:27 | -36.0 | Dark | Down | 18.1 | 284.7 | Really Low | 09:36:27 - 10:06:27 | 4312 |
| Anarchist Mountain Observatory | 09:51:25 | -36.1 | Dark | Down | 17.9 | 284.9 | Really Low | 09:36:25 - 10:06:25 | 4308 |
| Tonasket | 09:51:22 | -36.4 | Dark | Down | 17.9 | 284.9 | Really Low | 09:36:22 - 10:06:22 | 4287 |
| Okanogan | 09:51:19 | -36.7 | Dark | Down | 17.9 | 284.9 | Really Low | 09:36:19 - 10:06:19 | 4262 |
| Brewster | 09:51:16 | -37.0 | Dark | Down | 18.0 | 284.9 | Really Low | 09:36:16 - 10:06:16 | 4240 |
| Manson/Chelan | 09:51:14 | -37.3 | Dark | Down | 18.2 | 284.7 | Really Low | 09:36:14 - 10:06:14 | 4216 |
| Dunrhomin | 09:50:20 | -35.6 | Dark | Down | 5.6 | 295.7 | Really Low | 09:35:20 - 10:05:20 | 4189 |
| Wenatchee | 09:51:10 | -37.8 | Dark | Down | 18.2 | 284.7 | Really Low | 09:36:10 - 10:06:10 | 4182 |
| CU-SBO | 09:50:17 | -35.8 | Dark | Down | 5.6 | 295.7 | Really Low | 09:35:17 - 10:05:17 | 4170 |
| Victoria | 09:51:22 | -37.9 | Dark | Down | 20.4 | 282.2 | Low | 09:36:22 - 10:06:22 | 4160 |
| Ellensburg | 09:51:05 | -38.2 | Dark | Down | 18.3 | 284.7 | Really Low | 09:36:05 - 10:06:05 | 4149 |
| PNWRO | 09:50:56 | -38.4 | Dark | Down | 16.9 | 286.0 | Really Low | 09:35:56 - 10:05:56 | 4136 |
| Yakima | 09:51:03 | -38.6 | Dark | Down | 18.2 | 284.8 | Really Low | 09:36:03 - 10:06:03 | 4123 |
| Toppenish/White Swan | 09:50:59 | -38.7 | Dark | Down | 18.0 | 284.9 | Really Low | 09:35:59 - 10:05:59 | 4114 |
| Goldendale | 09:50:54 | -39.3 | Dark | Down | 18.2 | 284.8 | Really Low | 09:35:54 - 10:05:54 | 4065 |
| The Dalles | 09:50:51 | -39.7 | Dark | Down | 18.4 | 284.6 | Really Low | 09:35:51 - 10:05:51 | 4039 |
| Maupin | 09:50:49 | -40.0 | Dark | Down | 18.2 | 284.8 | Really Low | 09:35:49 - 10:05:49 | 4015 |
| Sisters | 09:50:39 | -40.9 | Dark | Down | 18.3 | 284.8 | Really Low | 09:35:39 - 10:05:39 | 3941 |
| Bend | 09:50:38 | -41.0 | Dark | Down | 18.1 | 285.0 | Really Low | 09:35:38 - 10:05:38 | 3933 |
| Oregon Observatory | 09:50:36 | -41.2 | Dark | Down | 18.1 | 285.0 | Really Low | 09:35:36 - 10:05:36 | 3917 |
| North Lake | 09:50:29 | -41.6 | Dark | Down | 17.6 | 285.5 | Really Low | 09:35:29 - 10:05:29 | 3891 |
| Lakeview | 09:50:18 | -42.2 | Dark | Down | 17.0 | 286.1 | Really Low | 09:35:18 - 10:05:18 | 3835 |
| Chiloquin | 09:50:23 | -42.5 | Dark | Down | 18.1 | 285.1 | Really Low | 09:35:23 - 10:05:23 | 3813 |
| Cedarville | 09:50:12 | -42.7 | Dark | Down | 16.7 | 286.4 | Really Low | 09:35:12 - 10:05:12 | 3795 |
| Klamath Falls | 09:50:20 | -42.8 | Dark | Down | 18.0 | 285.3 | Really Low | 09:35:20 - 10:05:20 | 3791 |
| Fall River/Burney | 09:50:09 | -43.6 | Dark | Down | 17.4 | 285.8 | Really Low | 09:35:09 - 10:05:09 | 3720 |
| Susanville | 09:50:03 | -43.8 | Dark | Down | 16.7 | 286.4 | Really Low | 09:35:03 - 10:05:03 | 3699 |
| Gimple | 09:50:01 | -44.1 | Dark | Down | 16.8 | 286.4 | Really Low | 09:35:01 - 10:05:01 | 3672 |
| Greenville | 09:50:01 | -44.2 | Dark | Down | 16.9 | 286.3 | Really Low | 09:35:01 - 10:05:01 | 3669 |
| Reno | 09:49:53 | -44.2 | Dark | Down | 15.9 | 287.1 | Really Low | 09:34:53 - 10:04:53 | 3664 |
| Portola | 09:49:58 | -44.2 | Dark | Down | 16.4 | 286.7 | Really Low | 09:34:58 - 10:04:58 | 3662 |
| Quincy | 09:49:58 | -44.3 | Dark | Down | 16.8 | 286.4 | Really Low | 09:34:58 - 10:04:58 | 3655 |
| Yerington | 09:49:50 | -44.3 | Dark | Down | 15.3 | 287.6 | Really Low | 09:34:50 - 10:04:50 | 3646 |
| Tonopah | 09:49:44 | -44.0 | Dark | Down | 13.5 | 288.9 | Really Low | 09:34:44 - 10:04:44 | 3644 |
| Carson City | 09:49:52 | -44.4 | Dark | Down | 15.8 | 287.2 | Really Low | 09:34:52 - 10:04:52 | 3639 |
| Hawthorne | 09:49:47 | -44.4 | Dark | Down | 14.7 | 288.1 | Really Low | 09:34:47 - 10:04:47 | 3630 |
| Gardnerville | 09:49:51 | -44.6 | Dark | Down | 15.7 | 287.3 | Really Low | 09:34:51 - 10:04:51 | 3622 |
| Indian Springs | 09:49:32 | -44.3 | Dark | Down | 11.9 | 290.1 | Really Low | 09:34:32 - 10:04:32 | 3587 |
| Beatty | 09:49:33 | -44.7 | Dark | Down | 12.9 | 289.4 | Really Low | 09:34:33 - 10:04:33 | 3573 |
| Lee Vining | 09:49:40 | -45.1 | Dark | Down | 14.9 | 287.9 | Really Low | 09:34:40 - 10:04:40 | 3572 |
| Henderson | 09:49:26 | -44.3 | Dark | Down | 11.2 | 290.5 | Really Low | 09:34:26 - 10:04:26 | 3570 |
| Patrick | 09:49:24 | -44.1 | Dark | Down | 10.2 | 291.2 | Really Low | 09:34:24 - 10:04:24 | 3562 |
| Bishop | 09:49:36 | -45.2 | Dark | Down | 14.2 | 288.4 | Really Low | 09:34:36 - 10:04:36 | 3552 |
| Kingman/Dolan Springs | 09:49:21 | -44.4 | Dark | Down | 10.2 | 291.2 | Really Low | 09:34:21 - 10:04:21 | 3539 |
| Laughlin/Bullhead City | 09:49:21 | -44.7 | Dark | Down | 10.6 | 290.9 | Really Low | 09:34:21 - 10:04:21 | 3518 |
| George/Scottsdale | 09:49:13 | -44.0 | Dark | Down | 8.0 | 292.5 | Really Low | 09:34:13 - 10:04:13 | 3504 |
| Mohave Valley | 09:49:18 | -44.9 | Dark | Down | 10.5 | 290.9 | Really Low | 09:34:18 - 10:04:18 | 3498 |
| Lake Havasu City | 09:49:16 | -45.0 | Dark | Down | 10.2 | 291.1 | Really Low | 09:34:16 - 10:04:16 | 3476 |
| Parker | 09:49:13 | -45.3 | Dark | Down | 10.1 | 291.2 | Really Low | 09:34:13 - 10:04:13 | 3450 |
| Idyllwild | 09:49:07 | -47.0 | Dark | Down | 11.8 | 290.0 | Really Low | 09:34:07 - 10:04:07 | 3332 |
| Calipatria | 09:49:05 | -46.7 | Dark | Down | 10.7 | 290.7 | Really Low | 09:34:05 - 10:04:05 | 3326 |
| Yuma | 09:49:01 | -46.5 | Dark | Down | 9.9 | 291.2 | Really Low | 09:34:01 - 10:04:01 | 3325 |
| Wildwood | 09:49:09 | -47.8 | Dark | Down | 13.4 | 289.0 | Really Low | 09:34:09 - 10:04:09 | 3292 |
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 03WU188, (2023/03/20 09:59UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 4.96 132 82 Gem 07:48:33.6 +23:08:27 6.5 0.11 133 PPM 097994 07:49:06.9 +23:07:09 10.4 0.03 133 03WU188 07:49:02.1 +23:08:12 16.2 133 Positions are for J2000
Event circumstances last updated at 2022/03/19 00:50:47 UT
Marc W. Buie, Southwest Research Institute