Event between (450265) 03WU172 and star GA1120:03069036 with event index number of 1838810
Geocentric closest approach at 2028/02/01 08:26:54 UTC
J2000 position of star is 08:42:30.0 +22:10:24
Equinox of date position of star is 08:43:42.7 +22:05:52
Stellar brightness G=13.4,
use SENSEUP=32
Star is 113 degrees from the moon.
Moon is 27% illuminated.
TNO apparent brightness V=24.6
[RECON map]
TNO is 29.4 AU from the Sun
and 28.4 AU from the Earth.
The TNO is moving 24.0
km/sec on the sky relative to the star, or,
4.2 arcsec/hr.
The 1-sigma error in the time of the event is 311 seconds.
The 1-sigma cross-track error in the shadow position is
3710 km.
The sky-plane scale is
20626.0 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=363.1 km assuming a 5% albedo -- 2.5 sec chord
Diameter=148.2 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is 3:2E
Star training set for 450265, (2028/02/01 08:27UT) Object RA Dec mag sep mel Pollux 07:47:02.2 +27:57:22 1.1 14.20 98 43Gam Cnc 08:44:54.5 +21:21:56 4.7 0.73 113 PPM 099029 08:48:06.7 +22:14:53 8.5 0.94 113 PPM 098993 08:45:23.7 +22:36:38 9.9 0.61 113 PPM 098980 08:44:18.4 +22:00:25 11.2 0.08 113 450265 08:44:07.9 +22:04:16 13.4 113 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
2.9 sigma about the mid-time.
The median site spacing is 20.4 km
RECON observability=1.0 and success probability=10.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Clarence Fulton | 08:27:03 | -56.8 | Dark | Down | 61.2 | 195.4 | Up | 08:12:03 - 08:42:03 | -2061 |
| Kelowna | 08:27:03 | -57.2 | Dark | Down | 61.6 | 195.3 | Up | 08:12:03 - 08:42:03 | -2100 |
| Peachland | 08:27:03 | -57.3 | Dark | Down | 61.8 | 194.7 | Up | 08:12:03 - 08:42:03 | -2116 |
| Summerland | 08:27:03 | -57.5 | Dark | Down | 61.9 | 195.0 | Up | 08:12:03 - 08:42:03 | -2128 |
| Penticton | 08:27:03 | -57.5 | Dark | Down | 62.0 | 195.2 | Up | 08:12:03 - 08:42:03 | -2132 |
| Oliver | 08:27:02 | -57.9 | Dark | Down | 62.3 | 195.4 | Up | 08:12:02 - 08:42:02 | -2165 |
| Anarchist Mountain Observatory | 08:27:01 | -58.0 | Dark | Down | 62.5 | 195.9 | Up | 08:12:01 - 08:42:01 | -2177 |
| Tonasket | 08:27:01 | -58.3 | Dark | Down | 62.8 | 195.9 | Up | 08:12:01 - 08:42:01 | -2207 |
| Okanogan | 08:27:01 | -58.7 | Dark | Down | 63.1 | 195.8 | Up | 08:12:01 - 08:42:01 | -2242 |
| Brewster | 08:27:02 | -59.0 | Dark | Down | 63.4 | 195.5 | Up | 08:12:02 - 08:42:02 | -2272 |
| Manson/Chelan | 08:27:02 | -59.2 | Dark | Down | 63.7 | 194.9 | Up | 08:12:02 - 08:42:02 | -2299 |
| Victoria | 08:27:13 | -58.7 | Dark | Down | 63.5 | 188.0 | Up | 08:12:13 - 08:42:13 | -2306 |
| Entiat | 08:27:02 | -59.4 | Dark | Down | 63.9 | 194.8 | Up | 08:12:02 - 08:42:02 | -2322 |
| Wenatchee | 08:27:02 | -59.7 | Dark | Down | 64.2 | 194.8 | Up | 08:12:02 - 08:42:02 | -2348 |
| Ellensburg | 08:27:02 | -60.1 | Dark | Down | 64.6 | 194.5 | Up | 08:12:02 - 08:42:02 | -2392 |
| Yakima | 08:27:02 | -60.5 | Dark | Down | 65.0 | 194.7 | Up | 08:12:02 - 08:42:02 | -2431 |
| Pasco | 08:26:57 | -60.7 | Dark | Down | 65.0 | 198.0 | Up | 08:11:57 - 08:41:57 | -2432 |
| Toppenish/White Swan | 08:27:01 | -60.7 | Dark | Down | 65.2 | 195.2 | Up | 08:12:01 - 08:42:01 | -2448 |
| PNWRO | 08:26:56 | -61.0 | Dark | Down | 65.2 | 198.6 | Up | 08:11:56 - 08:41:56 | -2450 |
| Goldendale | 08:27:02 | -61.3 | Dark | Down | 65.8 | 194.6 | Up | 08:12:02 - 08:42:02 | -2511 |
| The Dalles | 08:27:02 | -61.5 | Dark | Down | 66.1 | 193.9 | Up | 08:12:02 - 08:42:02 | -2541 |
| Maupin | 08:27:01 | -62.0 | Dark | Down | 66.5 | 194.3 | Up | 08:12:01 - 08:42:01 | -2579 |
| Niwot | 08:26:03 | -62.3 | Dark | Down | 64.3 | 232.4 | Up | 08:11:03 - 08:41:03 | -2644 |
| SwRI | 08:26:04 | -62.4 | Dark | Down | 64.4 | 232.4 | Up | 08:11:04 - 08:41:04 | -2657 |
| Redmond | 08:27:00 | -62.9 | Dark | Down | 67.3 | 194.7 | Up | 08:12:00 - 08:42:00 | -2669 |
| Sisters | 08:27:02 | -62.9 | Dark | Down | 67.4 | 193.7 | Up | 08:12:02 - 08:42:02 | -2675 |
| Bend | 08:27:01 | -63.1 | Dark | Down | 67.6 | 194.4 | Up | 08:12:01 - 08:42:01 | -2693 |
| Oregon Observatory | 08:27:00 | -63.3 | Dark | Down | 67.8 | 194.2 | Up | 08:12:00 - 08:42:00 | -2713 |
| La Pine/Gilchrist | 08:27:01 | -63.5 | Dark | Down | 68.0 | 194.2 | Up | 08:12:01 - 08:42:01 | -2734 |
| North Lake | 08:26:58 | -63.9 | Dark | Down | 68.3 | 195.9 | Up | 08:11:58 - 08:41:58 | -2763 |
| Paisley | 08:26:57 | -64.4 | Dark | Down | 68.7 | 197.2 | Up | 08:11:57 - 08:41:57 | -2809 |
| Lakeview | 08:26:55 | -64.9 | Dark | Down | 69.2 | 198.1 | Up | 08:11:55 - 08:41:55 | -2855 |
| Klamath Falls | 08:27:00 | -64.9 | Dark | Down | 69.4 | 194.4 | Up | 08:12:00 - 08:42:00 | -2884 |
| Cedarville | 08:26:54 | -65.5 | Dark | Down | 69.8 | 199.1 | Up | 08:11:54 - 08:41:54 | -2916 |
| Fall River/Burney | 08:26:57 | -66.1 | Dark | Down | 70.5 | 196.3 | Up | 08:11:57 - 08:41:57 | -2993 |
| Susanville | 08:26:54 | -66.7 | Dark | Down | 70.9 | 198.8 | Up | 08:11:54 - 08:41:54 | -3039 |
| Gimple | 08:26:54 | -67.0 | Dark | Down | 71.3 | 198.5 | Up | 08:11:54 - 08:41:54 | -3072 |
| Greenville | 08:26:54 | -67.0 | Dark | Down | 71.3 | 198.3 | Up | 08:11:54 - 08:41:54 | -3073 |
| Quincy | 08:26:54 | -67.2 | Dark | Down | 71.5 | 198.4 | Up | 08:11:54 - 08:41:54 | -3094 |
| Portola | 08:26:52 | -67.2 | Dark | Down | 71.5 | 199.9 | Up | 08:11:52 - 08:41:52 | -3095 |
| Reno | 08:26:49 | -67.4 | Dark | Down | 71.5 | 202.0 | Up | 08:11:49 - 08:41:49 | -3106 |
| Carson City | 08:26:49 | -67.8 | Dark | Down | 71.9 | 202.4 | Up | 08:11:49 - 08:41:49 | -3141 |
| Yerington | 08:26:46 | -67.9 | Dark | Down | 71.8 | 204.4 | Up | 08:11:46 - 08:41:46 | -3145 |
| Gardnerville | 08:26:49 | -68.0 | Dark | Down | 72.1 | 202.8 | Up | 08:11:49 - 08:41:49 | -3165 |
| Hawthorne | 08:26:44 | -68.3 | Dark | Down | 72.1 | 206.5 | Up | 08:11:44 - 08:41:44 | -3178 |
| Tonopah | 08:26:39 | -68.5 | Dark | Down | 72.0 | 211.0 | Up | 08:11:39 - 08:41:39 | -3188 |
| Lee Vining | 08:26:45 | -68.9 | Dark | Down | 72.8 | 205.9 | Up | 08:11:45 - 08:41:45 | -3248 |
| Bishop | 08:26:42 | -69.4 | Dark | Down | 73.0 | 208.8 | Up | 08:11:42 - 08:41:42 | -3290 |
| Beatty | 08:26:36 | -69.5 | Dark | Down | 72.8 | 214.2 | Up | 08:11:36 - 08:41:36 | -3293 |
| Indian Springs | 08:26:31 | -69.5 | Dark | Down | 72.5 | 217.6 | Up | 08:11:31 - 08:41:31 | -3297 |
| Henderson | 08:26:28 | -69.8 | Dark | Down | 72.6 | 220.5 | Up | 08:11:28 - 08:41:28 | -3331 |
| Patrick | 08:26:23 | -70.0 | Dark | Down | 72.5 | 224.5 | Up | 08:11:23 - 08:41:23 | -3362 |
| DCO | 08:26:20 | -70.0 | Dark | Down | 72.3 | 226.9 | Up | 08:11:20 - 08:41:20 | -3372 |
| Searchlight/Boulder City | 08:26:27 | -70.3 | Dark | Down | 73.0 | 221.8 | Up | 08:11:27 - 08:41:27 | -3387 |
| Kingman/Dolan Springs | 08:26:23 | -70.2 | Dark | Down | 72.7 | 224.6 | Up | 08:11:23 - 08:41:23 | -3390 |
| Laughlin/Bullhead City | 08:26:25 | -70.4 | Dark | Down | 73.0 | 223.3 | Up | 08:11:25 - 08:41:25 | -3408 |
| Mohave Valley | 08:26:24 | -70.7 | Dark | Down | 73.2 | 224.0 | Up | 08:11:24 - 08:41:24 | -3435 |
| Lake Havasu City | 08:26:23 | -71.0 | Dark | Down | 73.4 | 225.5 | Up | 08:11:23 - 08:41:23 | -3468 |
| George/Scottsdale | 08:26:13 | -70.6 | Dark | Down | 72.4 | 233.1 | Up | 08:11:13 - 08:41:13 | -3474 |
| Parker | 08:26:22 | -71.3 | Dark | Down | 73.6 | 226.4 | Up | 08:11:22 - 08:41:22 | -3503 |
| CPSLO | 08:26:47 | -71.7 | Dark | Down | 75.7 | 205.1 | Up | 08:11:47 - 08:41:47 | -3559 |
| Blythe | 08:26:23 | -71.8 | Dark | Down | 74.1 | 227.0 | Up | 08:11:23 - 08:41:23 | -3565 |
| Idyllwild | 08:26:31 | -72.4 | Dark | Down | 75.3 | 221.0 | Up | 08:11:31 - 08:41:31 | -3614 |
| Wildwood | 08:26:38 | -72.6 | Dark | Down | 75.9 | 214.3 | Up | 08:11:38 - 08:41:38 | -3629 |
| Calipatria | 08:26:25 | -72.6 | Dark | Down | 75.0 | 225.9 | Up | 08:11:25 - 08:41:25 | -3643 |
| Yuma | 08:26:22 | -72.7 | Dark | Down | 74.8 | 229.4 | Up | 08:11:22 - 08:41:22 | -3661 |
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 450265, (2028/02/01 08:27UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 14.20 98 43Gam Cnc 08:43:17.0 +21:28:06 4.7 0.73 113 PPM 099029 08:46:28.8 +22:21:08 8.5 0.94 113 PPM 098993 08:43:45.5 +22:42:48 9.9 0.61 113 PPM 098980 08:42:40.5 +22:06:33 11.2 0.08 113 450265 08:42:30.0 +22:10:24 13.4 113 Positions are for J2000
Event circumstances last updated at 2020/11/05 22:59:33 UT
Marc W. Buie, Southwest Research Institute