Event between (471272) 11FY9 and star GA0880:04711336 with event index number of 2572537
Geocentric closest approach at 2026/05/05 09:58:22 UTC
J2000 position of star is 16:14:11.0 -00:58:02
Equinox of date position of star is 16:15:19.2 -01:01:17
Stellar brightness G=15.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 34 degrees from the moon.
Moon is 88% illuminated.
TNO apparent brightness V=23.3
[RECON map]
TNO is 27.1 AU from the Sun
and 26.1 AU from the Earth.
The TNO is moving 24.2
km/sec on the sky relative to the star, or,
4.6 arcsec/hr.
The 1-sigma error in the time of the event is 112 seconds.
The 1-sigma cross-track error in the shadow position is
2035 km.
The sky-plane scale is
18964.2 km/arcsec.
The TNO has an absolute magnitude Hv=8.9
Diameter=97.7 km assuming a 5% albedo -- 4.0 sec chord
Diameter=39.9 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
Star training set for 471272, (2026/05/05 09:58UT) Object RA Dec mag sep mel Antares 16:31:01.6 -26:29:17 0.9 25.73 16 1Del Oph 16:15:43.7 -03:45:36 2.7 2.73 32 PPM 199363 16:11:13.4 -03:32:03 5.0 2.72 33 PPM 179747 16:14:36.4 -01:28:05 8.4 0.49 34 PPM 179745 16:14:20.8 -00:57:17 10.3 0.31 34 471272 16:15:32.5 -01:01:55 15.9 34 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 14.3 km
RECON observability=1.0 and success probability=14.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 09:58:54 | -11.4 | NT | Up | 33.4 | 208.6 | Up | 09:49:03 - 10:08:44 | 808 |
| Kamloops | 09:59:27 | -17.9 | AT | Up | 37.8 | 191.7 | Up | 09:49:36 - 10:09:17 | 331 |
| Kelowna | 09:59:23 | -18.3 | Dark | Up | 38.4 | 193.0 | Up | 09:49:33 - 10:09:14 | 311 |
| Peachland | 09:59:23 | -18.5 | Dark | Up | 38.6 | 192.6 | Up | 09:49:33 - 10:09:14 | 296 |
| Summerland | 09:59:23 | -18.6 | Dark | Up | 38.7 | 192.8 | Up | 09:49:33 - 10:09:14 | 290 |
| Penticton | 09:59:23 | -18.6 | Dark | Up | 38.8 | 192.9 | Up | 09:49:32 - 10:09:13 | 289 |
| Oliver | 09:59:22 | -18.9 | Dark | Up | 39.1 | 193.0 | Up | 09:49:32 - 10:09:13 | 269 |
| Anarchist Mountain Observatory | 09:59:21 | -19.0 | Dark | Up | 39.2 | 193.2 | Up | 09:49:31 - 10:09:12 | 265 |
| Tonasket | 09:59:21 | -19.3 | Dark | Up | 39.6 | 193.2 | Up | 09:49:30 - 10:09:11 | 244 |
| Okanogan | 09:59:21 | -19.6 | Dark | Up | 39.9 | 193.1 | Up | 09:49:30 - 10:09:11 | 220 |
| Brewster | 09:59:21 | -19.9 | Dark | Up | 40.2 | 192.9 | Up | 09:49:30 - 10:09:11 | 197 |
| Dunrhomin | 09:58:22 | -19.5 | Dark | Up | 43.3 | 214.2 | Up | 09:48:32 - 10:08:13 | 183 |
| Manson/Chelan | 09:59:21 | -20.3 | Dark | Up | 40.5 | 192.4 | Up | 09:49:31 - 10:09:12 | 173 |
| Wenatchee | 09:59:21 | -20.7 | Dark | Up | 41.0 | 192.3 | Up | 09:49:31 - 10:09:12 | 139 |
| Victoria | 09:59:31 | -20.8 | Dark | Up | 40.2 | 188.1 | Up | 09:49:41 - 10:09:22 | 111 |
| Ellensburg | 09:59:21 | -21.1 | Dark | Up | 41.4 | 192.1 | Up | 09:49:30 - 10:09:11 | 107 |
| PNWRO | 09:59:14 | -21.4 | Dark | Up | 42.1 | 194.4 | Up | 09:49:24 - 10:09:05 | 98 |
| Yakima | 09:59:20 | -21.5 | Dark | Up | 41.8 | 192.1 | Up | 09:49:30 - 10:09:11 | 81 |
| Toppenish/White Swan | 09:59:19 | -21.6 | Dark | Up | 42.0 | 192.4 | Up | 09:49:29 - 10:09:10 | 72 |
| Goldendale | 09:59:20 | -22.3 | Dark | Up | 42.6 | 191.9 | Up | 09:49:29 - 10:09:10 | 24 |
| The Dalles | 09:59:20 | -22.6 | Dark | Up | 42.8 | 191.5 | Up | 09:49:30 - 10:09:11 | -3 |
| Maupin | 09:59:19 | -22.9 | Dark | Up | 43.2 | 191.7 | Up | 09:49:29 - 10:09:10 | -26 |
| Sisters | 09:59:19 | -23.8 | Dark | Up | 44.2 | 191.2 | Up | 09:49:29 - 10:09:10 | -100 |
| Bend | 09:59:18 | -23.9 | Dark | Up | 44.4 | 191.6 | Up | 09:49:27 - 10:09:08 | -107 |
| Oregon Observatory | 09:59:18 | -24.1 | Dark | Up | 44.6 | 191.4 | Up | 09:49:28 - 10:09:09 | -123 |
| North Lake | 09:59:15 | -24.5 | Dark | Up | 45.1 | 192.3 | Up | 09:49:25 - 10:09:06 | -148 |
| Lakeview | 09:59:12 | -25.2 | Dark | Up | 46.1 | 193.3 | Up | 09:49:21 - 10:09:02 | -201 |
| Chiloquin | 09:59:17 | -25.4 | Dark | Up | 45.9 | 191.1 | Up | 09:49:26 - 10:09:07 | -226 |
| Cedarville | 09:59:10 | -25.7 | Dark | Up | 46.7 | 193.7 | Up | 09:49:20 - 10:09:01 | -240 |
| Klamath Falls | 09:59:16 | -25.7 | Dark | Up | 46.2 | 191.3 | Up | 09:49:26 - 10:09:07 | -247 |
| Fall River/Burney | 09:59:13 | -26.6 | Dark | Up | 47.3 | 192.1 | Up | 09:49:22 - 10:09:03 | -316 |
| Susanville | 09:59:10 | -26.8 | Dark | Up | 47.8 | 193.3 | Up | 09:49:19 - 10:09:00 | -335 |
| Gimple | 09:59:10 | -27.1 | Dark | Up | 48.1 | 193.1 | Up | 09:49:19 - 10:09:00 | -362 |
| Greenville | 09:59:10 | -27.2 | Dark | Up | 48.2 | 192.9 | Up | 09:49:19 - 10:09:00 | -365 |
| Reno | 09:59:05 | -27.2 | Dark | Up | 48.5 | 194.7 | Up | 09:49:15 - 10:08:56 | -367 |
| Portola | 09:59:08 | -27.2 | Dark | Up | 48.4 | 193.7 | Up | 09:49:17 - 10:08:58 | -371 |
| Quincy | 09:59:09 | -27.3 | Dark | Up | 48.3 | 193.0 | Up | 09:49:19 - 10:09:00 | -379 |
| Tonopah | 09:58:54 | -27.3 | Dark | Up | 49.4 | 199.0 | Up | 09:49:04 - 10:08:45 | -380 |
| Yerington | 09:59:02 | -27.4 | Dark | Up | 48.9 | 195.9 | Up | 09:49:12 - 10:08:53 | -383 |
| Carson City | 09:59:04 | -27.5 | Dark | Up | 48.9 | 194.9 | Up | 09:49:14 - 10:08:55 | -392 |
| Hawthorne | 09:58:59 | -27.5 | Dark | Up | 49.3 | 196.8 | Up | 09:49:09 - 10:08:50 | -397 |
| Gardnerville | 09:59:04 | -27.7 | Dark | Up | 49.1 | 195.0 | Up | 09:49:13 - 10:08:54 | -408 |
| Indian Springs | 09:58:46 | -27.7 | Dark | Up | 50.3 | 201.9 | Up | 09:48:56 - 10:08:37 | -432 |
| Henderson | 09:58:43 | -27.8 | Dark | Up | 50.6 | 203.1 | Up | 09:48:52 - 10:08:33 | -446 |
| Beatty | 09:58:50 | -28.0 | Dark | Up | 50.3 | 200.1 | Up | 09:49:00 - 10:08:41 | -448 |
| Patrick | 09:58:38 | -27.7 | Dark | Up | 50.8 | 205.1 | Up | 09:48:47 - 10:08:28 | -451 |
| Lee Vining | 09:59:00 | -28.2 | Dark | Up | 49.9 | 196.2 | Up | 09:49:10 - 10:08:51 | -456 |
| Bishop | 09:58:57 | -28.4 | Dark | Up | 50.3 | 197.5 | Up | 09:49:06 - 10:08:47 | -474 |
| Kingman/Dolan Springs | 09:58:38 | -28.0 | Dark | Up | 51.1 | 204.9 | Up | 09:48:47 - 10:08:28 | -475 |
| Laughlin/Bullhead City | 09:58:40 | -28.3 | Dark | Up | 51.3 | 204.2 | Up | 09:48:49 - 10:08:30 | -496 |
| George/Scottsdale | 09:58:27 | -27.9 | Dark | Up | 51.6 | 209.0 | Up | 09:48:37 - 10:08:18 | -503 |
| Mohave Valley | 09:58:39 | -28.5 | Dark | Up | 51.5 | 204.3 | Up | 09:48:48 - 10:08:29 | -516 |
| Lake Havasu City | 09:58:37 | -28.7 | Dark | Up | 51.8 | 204.9 | Up | 09:48:47 - 10:08:28 | -537 |
| Parker | 09:58:36 | -28.9 | Dark | Up | 52.1 | 205.1 | Up | 09:48:46 - 10:08:27 | -562 |
| Idyllwild | 09:58:44 | -30.5 | Dark | Up | 53.3 | 201.6 | Up | 09:48:53 - 10:08:34 | -684 |
| Yuma | 09:58:34 | -30.2 | Dark | Up | 53.6 | 205.4 | Up | 09:48:44 - 10:08:25 | -686 |
| Calipatria | 09:58:38 | -30.3 | Dark | Up | 53.5 | 203.8 | Up | 09:48:48 - 10:08:29 | -687 |
| Wildwood | 09:58:51 | -31.1 | Dark | Up | 53.5 | 198.5 | Up | 09:49:00 - 10:08:41 | -729 |
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 471272, (2026/05/05 09:58UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 25.73 16 1Del Oph 16:14:20.7 -03:41:43 2.7 2.73 32 PPM 199363 16:09:50.5 -03:28:00 5.0 2.72 33 PPM 179747 16:13:14.6 -01:24:09 8.4 0.49 34 PPM 179745 16:12:59.3 -00:53:21 10.3 0.31 34 471272 16:14:11.0 -00:58:02 15.9 34 Positions are for J2000
Event circumstances last updated at 2022/01/12 23:56:41 UT
Marc W. Buie, Southwest Research Institute