Event between (469610) 04HF79 and star GA0660:07967192 with event index number of 2254957
Geocentric closest approach at 2023/02/17 11:55:20 UTC
J2000 position of star is 16:47:35.4 -22:16:32
Equinox of date position of star is 16:48:53.8 -22:18:47
Stellar brightness G=12.1,
use SENSEUP=16 with the MallinCam and and exposure
time of 250 milli-seconds with the QHY174 camera.
Star is 36 degrees from the moon.
Moon is 12% illuminated.
TNO apparent brightness V=22.8
[RECON map]
TNO is 42.1 AU from the Sun
and 42.4 AU from the Earth.
The TNO is moving 12.8
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 1232 seconds.
The 1-sigma cross-track error in the shadow position is
3163 km.
The sky-plane scale is
30747.1 km/arcsec.
The TNO has an absolute magnitude Hv=6.4
Diameter=310.5 km assuming a 5% albedo -- 24.2 sec chord
Diameter=126.7 km assuming a 30% albedo -- 9.9 sec chord
Dynamical classification is CLASSICAL
Star training set for 469610, (2023/02/17 11:55UT) Object RA Dec mag sep mel Antares 16:30:49.8 -26:28:53 0.9 5.87 39 23Tau Sco 16:37:19.6 -28:15:43 2.8 6.50 37 PPM 266088 16:54:47.4 -20:27:08 5.7 2.30 35 PPM 265937 16:47:52.6 -22:40:07 8.4 0.44 36 PPM 265962 16:48:52.9 -22:12:49 9.6 0.10 36 469610 16:48:58.6 -22:18:55 12.1 36 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
0.7 sigma about the mid-time.
The median site spacing is 20.5 km
RECON observability=0.2 and success probability=7.1%
| 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 | 11:50:36 | -31.3 | Dark | Down | 6.7 | 137.6 | Really Low | 11:35:36 - 12:05:36 | 203 |
| Kelowna | 11:50:33 | -31.5 | Dark | Down | 6.9 | 137.4 | Really Low | 11:35:33 - 12:05:33 | 178 |
| Peachland | 11:50:32 | -31.8 | Dark | Down | 6.9 | 137.2 | Really Low | 11:35:32 - 12:05:32 | 165 |
| Summerland | 11:50:32 | -31.8 | Dark | Down | 7.0 | 137.2 | Really Low | 11:35:32 - 12:05:32 | 159 |
| Penticton | 11:50:32 | -31.7 | Dark | Down | 7.1 | 137.3 | Really Low | 11:35:32 - 12:05:32 | 159 |
| Oliver | 11:50:30 | -31.9 | Dark | Down | 7.4 | 137.3 | Really Low | 11:35:30 - 12:05:30 | 140 |
| Anarchist Mountain Observatory | 11:50:30 | -31.8 | Dark | Down | 7.6 | 137.4 | Really Low | 11:35:30 - 12:05:30 | 137 |
| Tonasket | 11:50:28 | -31.9 | Dark | Down | 7.8 | 137.3 | Really Low | 11:35:28 - 12:05:28 | 118 |
| Okanogan | 11:50:26 | -32.2 | Dark | Down | 8.0 | 137.2 | Really Low | 11:35:26 - 12:05:26 | 95 |
| Brewster | 11:50:25 | -32.4 | Dark | Down | 8.1 | 137.0 | Really Low | 11:35:25 - 12:05:25 | 75 |
| Manson/Chelan | 11:50:22 | -32.7 | Dark | Down | 8.0 | 136.7 | Really Low | 11:35:22 - 12:05:22 | 53 |
| Dunrhomin | 11:51:06 | -23.6 | Dark | Down | 20.7 | 148.3 | Low | 11:36:06 - 12:06:06 | 26 |
| Wenatchee | 11:50:20 | -33.0 | Dark | Down | 8.3 | 136.5 | Really Low | 11:35:20 - 12:05:20 | 22 |
| Victoria | 11:50:13 | -34.5 | Dark | Down | 6.1 | 134.1 | Really Low | 11:35:13 - 12:05:13 | -2 |
| Ellensburg | 11:50:17 | -33.3 | Dark | Down | 8.5 | 136.2 | Really Low | 11:35:17 - 12:05:17 | -8 |
| Pasco | 11:50:19 | -32.6 | Dark | Down | 9.7 | 137.3 | Really Low | 11:35:19 - 12:05:19 | -10 |
| PNWRO | 11:50:19 | -32.5 | Dark | Down | 10.0 | 137.5 | Really Low | 11:35:19 - 12:05:19 | -18 |
| Yakima | 11:50:15 | -33.4 | Dark | Down | 8.8 | 136.2 | Really Low | 11:35:15 - 12:05:15 | -32 |
| Toppenish/White Swan | 11:50:15 | -33.4 | Dark | Down | 9.0 | 136.3 | Really Low | 11:35:15 - 12:05:15 | -39 |
| Goldendale | 11:50:11 | -33.8 | Dark | Down | 9.2 | 135.9 | Really Low | 11:35:11 - 12:05:11 | -84 |
| The Dalles | 11:50:09 | -34.2 | Dark | Down | 9.2 | 135.5 | Really Low | 11:35:09 - 12:05:09 | -108 |
| Maupin | 11:50:07 | -34.2 | Dark | Down | 9.5 | 135.6 | Really Low | 11:35:07 - 12:05:07 | -130 |
| Redmond | 11:50:03 | -34.6 | Dark | Down | 10.1 | 135.4 | Really Low | 11:35:03 - 12:05:03 | -187 |
| Sisters | 11:50:02 | -34.9 | Dark | Down | 9.9 | 135.1 | Really Low | 11:35:02 - 12:05:02 | -198 |
| Bend | 11:50:02 | -34.8 | Dark | Down | 10.2 | 135.2 | Really Low | 11:35:02 - 12:05:02 | -205 |
| Oregon Observatory | 11:50:01 | -34.9 | Dark | Down | 10.3 | 135.1 | Really Low | 11:35:01 - 12:05:01 | -219 |
| La Pine/Gilchrist | 11:50:00 | -35.0 | Dark | Down | 10.4 | 135.0 | Really Low | 11:35:00 - 12:05:00 | -234 |
| North Lake | 11:50:01 | -34.7 | Dark | Down | 11.0 | 135.4 | Really Low | 11:35:01 - 12:05:01 | -243 |
| Paisley | 11:50:00 | -34.7 | Dark | Down | 11.6 | 135.7 | Really Low | 11:35:00 - 12:05:00 | -267 |
| Lakeview | 11:49:59 | -34.7 | Dark | Down | 12.0 | 135.7 | Really Low | 11:34:59 - 12:04:59 | -293 |
| Chiloquin | 11:49:54 | -35.6 | Dark | Down | 10.9 | 134.6 | Really Low | 11:34:54 - 12:04:54 | -315 |
| Cedarville | 11:49:57 | -34.7 | Dark | Down | 12.6 | 135.8 | Really Low | 11:34:57 - 12:04:57 | -330 |
| Klamath Falls | 11:49:53 | -35.7 | Dark | Down | 11.2 | 134.6 | Really Low | 11:34:53 - 12:04:53 | -335 |
| Fall River/Burney | 11:49:50 | -35.8 | Dark | Down | 12.3 | 134.7 | Really Low | 11:34:50 - 12:04:50 | -400 |
| Susanville | 11:49:51 | -35.4 | Dark | Down | 13.1 | 135.2 | Really Low | 11:34:51 - 12:04:51 | -419 |
| Gimple | 11:49:49 | -35.7 | Dark | Down | 13.2 | 135.0 | Really Low | 11:34:49 - 12:04:49 | -444 |
| Greenville | 11:49:49 | -35.7 | Dark | Down | 13.1 | 134.9 | Really Low | 11:34:49 - 12:04:49 | -447 |
| Reno | 11:49:51 | -35.0 | Dark | Down | 14.2 | 135.7 | Really Low | 11:34:51 - 12:04:51 | -451 |
| Portola | 11:49:50 | -35.4 | Dark | Down | 13.6 | 135.2 | Really Low | 11:34:50 - 12:04:50 | -453 |
| Quincy | 11:49:48 | -35.8 | Dark | Down | 13.3 | 134.9 | Really Low | 11:34:48 - 12:04:48 | -460 |
| Yerington | 11:49:53 | -34.7 | Dark | Down | 14.9 | 136.1 | Really Low | 11:34:53 - 12:04:53 | -467 |
| Tonopah | 11:49:58 | -33.4 | Dark | Down | 16.7 | 137.5 | Really Low | 11:34:58 - 12:04:58 | -469 |
| Carson City | 11:49:51 | -35.1 | Dark | Down | 14.4 | 135.6 | Really Low | 11:34:51 - 12:04:51 | -474 |
| Hawthorne | 11:49:53 | -34.4 | Dark | Down | 15.6 | 136.4 | Really Low | 11:34:53 - 12:04:53 | -482 |
| Gardnerville | 11:49:50 | -35.1 | Dark | Down | 14.6 | 135.6 | Really Low | 11:34:50 - 12:04:50 | -490 |
| Indian Springs | 11:50:01 | -32.4 | Dark | Down | 18.6 | 138.4 | Really Low | 11:35:01 - 12:05:01 | -523 |
| Beatty | 11:49:57 | -33.2 | Dark | Down | 17.8 | 137.6 | Really Low | 11:34:57 - 12:04:57 | -535 |
| Lee Vining | 11:49:49 | -34.9 | Dark | Down | 15.7 | 135.9 | Really Low | 11:34:49 - 12:04:49 | -536 |
| Henderson | 11:50:03 | -31.9 | Dark | Down | 19.4 | 138.8 | Really Low | 11:35:03 - 12:05:03 | -538 |
| Patrick | 11:50:08 | -31.1 | Dark | Down | 20.4 | 139.6 | Low | 11:35:08 - 12:05:08 | -547 |
| Bishop | 11:49:51 | -34.4 | Dark | Down | 16.5 | 136.4 | Really Low | 11:34:51 - 12:04:51 | -555 |
| Kingman/Dolan Springs | 11:50:06 | -31.3 | Dark | Down | 20.5 | 139.4 | Low | 11:35:06 - 12:05:06 | -568 |
| Laughlin/Bullhead City | 11:50:03 | -31.7 | Dark | Down | 20.2 | 138.9 | Low | 11:35:03 - 12:05:03 | -587 |
| George/Scottsdale | 11:50:14 | -29.6 | Dark | Down | 22.8 | 140.8 | Low | 11:35:14 - 12:05:14 | -603 |
| Mohave Valley | 11:50:02 | -31.8 | Dark | Down | 20.4 | 138.9 | Low | 11:35:02 - 12:05:02 | -606 |
| Lake Havasu City | 11:50:03 | -31.6 | Dark | Down | 20.9 | 139.0 | Low | 11:35:03 - 12:05:03 | -627 |
| Parker | 11:50:02 | -31.6 | Dark | Down | 21.2 | 138.9 | Low | 11:35:02 - 12:05:02 | -652 |
| Blythe | 11:49:59 | -32.0 | Dark | Down | 21.4 | 138.5 | Low | 11:34:59 - 12:04:59 | -699 |
| Idyllwild | 11:49:48 | -33.7 | Dark | Down | 20.1 | 136.8 | Low | 11:34:48 - 12:04:48 | -760 |
| Calipatria | 11:49:53 | -32.8 | Dark | Down | 21.2 | 137.6 | Low | 11:34:53 - 12:04:53 | -767 |
| Yuma | 11:49:56 | -32.1 | Dark | Down | 22.1 | 138.2 | Low | 11:34:56 - 12:04:56 | -769 |
| CPSLO | 11:49:34 | -36.7 | Dark | Down | 16.7 | 134.2 | Really Low | 11:34:34 - 12:04:34 | -779 |
| Wildwood | 11:49:40 | -35.3 | Dark | Down | 18.7 | 135.5 | Really Low | 11:34:40 - 12:04:40 | -798 |
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 469610, (2023/02/17 11:55UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 5.87 39 23Tau Sco 16:35:52.9 -28:12:58 2.8 6.50 37 PPM 266088 16:53:25.2 -20:24:57 5.7 2.30 35 PPM 265937 16:46:29.2 -22:37:43 8.4 0.44 36 PPM 265962 16:47:29.8 -22:10:26 9.6 0.10 36 469610 16:47:35.4 -22:16:32 12.1 36 Positions are for J2000
Event circumstances last updated at 2021/10/16 01:16:40 UT
Marc W. Buie, Southwest Research Institute