Event between 04HC79 and star GA0660:11672300 with event index number of 1969743
Geocentric closest approach at 2024/04/14 08:46:30 UTC
J2000 position of star is 17:20:00.4 -23:24:23
Equinox of date position of star is 17:21:23.2 -23:25:41
Stellar brightness G=14.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 162 degrees from the moon.
Moon is 36% illuminated.
TNO apparent brightness V=23.2
[RECON map]
TNO is 39.9 AU from the Sun
and 39.4 AU from the Earth.
The TNO is moving 11.1
km/sec on the sky relative to the star, or,
1.4 arcsec/hr.
The 1-sigma error in the time of the event is 588 seconds.
The 1-sigma cross-track error in the shadow position is
1592 km.
The sky-plane scale is
28547.0 km/arcsec.
The TNO has an absolute magnitude Hv=7.1
Diameter=232.3 km assuming a 5% albedo -- 20.8 sec chord
Diameter=94.8 km assuming a 30% albedo -- 8.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 04HC79, (2024/04/14 08:44UT) Object RA Dec mag sep mel Antares 16:30:54.0 -26:29:02 0.9 11.86 152 35Eta Oph 17:11:46.4 -15:45:12 2.6 8.01 156 PPM 266836 17:26:35.4 -24:15:49 6.4 1.44 163 PPM 266759 17:23:35.0 -23:35:45 8.2 0.51 163 PPM 266702 17:21:55.0 -23:38:26 9.6 0.23 162 04HC79 17:21:28.9 -23:25:46 14.9 162 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
1.5 sigma about the mid-time.
The median site spacing is 15.5 km
RECON observability=0.2 and success probability=0.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 08:49:51 | -24.2 | Dark | Up | 10.0 | 151.8 | Really Low | 08:34:51 - 09:04:51 | 7761 |
| Kamloops | 08:51:05 | -28.7 | Dark | Up | 6.1 | 139.6 | Really Low | 08:36:05 - 09:06:05 | 7432 |
| Kelowna | 08:51:05 | -29.4 | Dark | Up | 7.1 | 140.3 | Really Low | 08:36:05 - 09:06:05 | 7416 |
| Peachland | 08:51:07 | -29.5 | Dark | Up | 7.1 | 140.1 | Really Low | 08:36:07 - 09:06:07 | 7405 |
| Summerland | 08:51:07 | -29.7 | Dark | Up | 7.3 | 140.1 | Really Low | 08:36:07 - 09:06:07 | 7401 |
| Penticton | 08:51:08 | -29.7 | Dark | Up | 7.4 | 140.2 | Really Low | 08:36:08 - 09:06:08 | 7400 |
| Oliver | 08:51:09 | -30.0 | Dark | Up | 7.6 | 140.2 | Really Low | 08:36:09 - 09:06:09 | 7384 |
| Anarchist Mountain Observatory | 08:51:09 | -30.2 | Dark | Up | 7.8 | 140.3 | Really Low | 08:36:09 - 09:06:09 | 7382 |
| Tonasket | 08:51:10 | -30.5 | Dark | Up | 8.0 | 140.3 | Really Low | 08:36:10 - 09:06:10 | 7365 |
| Okanogan | 08:51:13 | -30.8 | Dark | Up | 8.2 | 140.1 | Really Low | 08:36:13 - 09:06:13 | 7347 |
| Brewster | 08:51:16 | -31.1 | Dark | Up | 8.4 | 139.9 | Really Low | 08:36:16 - 09:06:16 | 7329 |
| Manson/Chelan | 08:51:16 | -31.4 | Dark | Up | 8.4 | 139.6 | Really Low | 08:36:16 - 09:06:16 | 7311 |
| Wenatchee | 08:51:21 | -31.9 | Dark | Up | 8.7 | 139.4 | Really Low | 08:36:21 - 09:06:21 | 7285 |
| Victoria | 08:51:30 | -31.2 | Dark | Up | 6.5 | 137.1 | Really Low | 08:36:30 - 09:06:30 | 7266 |
| Ellensburg | 08:51:24 | -32.3 | Dark | Up | 8.9 | 139.2 | Really Low | 08:36:24 - 09:06:24 | 7260 |
| PNWRO | 08:51:21 | -33.0 | Dark | Up | 10.4 | 140.5 | Really Low | 08:36:21 - 09:06:21 | 7249 |
| Dunrhomin | 08:50:25 | -34.0 | Dark | Down | 20.7 | 151.1 | Low | 08:35:25 - 09:05:25 | 7248 |
| Yakima | 08:51:27 | -32.7 | Dark | Up | 9.2 | 139.2 | Really Low | 08:36:27 - 09:06:27 | 7239 |
| CU-SBO | 08:50:28 | -34.3 | Dark | Down | 20.8 | 151.0 | Low | 08:35:28 - 09:05:28 | 7233 |
| Toppenish/White Swan | 08:51:26 | -32.9 | Dark | Up | 9.4 | 139.3 | Really Low | 08:36:26 - 09:06:26 | 7233 |
| Goldendale | 08:51:32 | -33.5 | Dark | Up | 9.7 | 138.9 | Really Low | 08:36:32 - 09:06:32 | 7195 |
| The Dalles | 08:51:34 | -33.8 | Dark | Up | 9.7 | 138.6 | Really Low | 08:36:34 - 09:06:34 | 7174 |
| Maupin | 08:51:35 | -34.2 | Dark | Up | 10.0 | 138.6 | Really Low | 08:36:35 - 09:06:35 | 7156 |
| Sisters | 08:51:42 | -35.1 | Dark | Up | 10.5 | 138.2 | Really Low | 08:36:42 - 09:06:42 | 7098 |
| Bend | 08:51:41 | -35.3 | Dark | Up | 10.8 | 138.3 | Really Low | 08:36:41 - 09:06:41 | 7091 |
| Oregon Observatory | 08:51:43 | -35.5 | Dark | Up | 10.9 | 138.2 | Really Low | 08:36:43 - 09:06:43 | 7079 |
| North Lake | 08:51:44 | -36.0 | Dark | Up | 11.6 | 138.6 | Really Low | 08:36:44 - 09:06:44 | 7058 |
| Lakeview | 08:51:45 | -36.9 | Dark | Up | 12.7 | 138.9 | Really Low | 08:36:45 - 09:06:45 | 7013 |
| Chiloquin | 08:51:51 | -36.8 | Dark | Up | 11.6 | 137.7 | Really Low | 08:36:51 - 09:06:51 | 6996 |
| Cedarville | 08:51:47 | -37.5 | Dark | Up | 13.2 | 138.9 | Really Low | 08:36:47 - 09:06:47 | 6980 |
| Klamath Falls | 08:51:52 | -37.1 | Dark | Up | 11.9 | 137.7 | Really Low | 08:36:52 - 09:06:52 | 6978 |
| Fall River/Burney | 08:51:56 | -38.2 | Dark | Up | 13.0 | 137.9 | Really Low | 08:36:56 - 09:06:56 | 6920 |
| Susanville | 08:51:53 | -38.7 | Dark | Up | 13.9 | 138.4 | Really Low | 08:36:53 - 09:06:53 | 6903 |
| Gimple | 08:51:57 | -39.0 | Dark | Up | 14.0 | 138.2 | Really Low | 08:36:57 - 09:06:57 | 6881 |
| Greenville | 08:51:58 | -39.0 | Dark | Up | 13.9 | 138.1 | Really Low | 08:36:58 - 09:06:58 | 6879 |
| Reno | 08:51:55 | -39.3 | Dark | Down | 14.9 | 138.9 | Really Low | 08:36:55 - 09:06:55 | 6873 |
| Portola | 08:51:56 | -39.2 | Dark | Up | 14.4 | 138.4 | Really Low | 08:36:56 - 09:06:56 | 6872 |
| Quincy | 08:51:58 | -39.2 | Dark | Up | 14.1 | 138.1 | Really Low | 08:36:58 - 09:06:58 | 6866 |
| Yerington | 08:51:52 | -39.7 | Dark | Down | 15.7 | 139.3 | Really Low | 08:36:52 - 09:06:52 | 6856 |
| Carson City | 08:51:56 | -39.7 | Dark | Down | 15.2 | 138.8 | Really Low | 08:36:56 - 09:06:56 | 6852 |
| Tonopah | 08:51:46 | -40.1 | Dark | Down | 17.4 | 140.7 | Really Low | 08:36:46 - 09:06:46 | 6850 |
| Hawthorne | 08:51:53 | -40.0 | Dark | Down | 16.3 | 139.6 | Really Low | 08:36:53 - 09:06:53 | 6842 |
| Gardnerville | 08:51:56 | -39.9 | Dark | Down | 15.4 | 138.8 | Really Low | 08:36:56 - 09:06:56 | 6838 |
| Indian Springs | 08:51:42 | -41.0 | Dark | Down | 19.3 | 141.6 | Really Low | 08:36:42 - 09:06:42 | 6796 |
| Lee Vining | 08:51:56 | -40.7 | Dark | Down | 16.5 | 139.1 | Really Low | 08:36:56 - 09:06:56 | 6795 |
| Beatty | 08:51:47 | -41.1 | Dark | Down | 18.5 | 140.8 | Really Low | 08:36:47 - 09:06:47 | 6789 |
| Henderson | 08:51:40 | -41.3 | Dark | Down | 20.0 | 142.0 | Low | 08:36:40 - 09:06:40 | 6779 |
| Bishop | 08:51:55 | -41.1 | Dark | Down | 17.3 | 139.6 | Really Low | 08:36:55 - 09:06:55 | 6776 |
| Patrick | 08:51:34 | -41.5 | Dark | Down | 21.1 | 142.8 | Low | 08:36:34 - 09:06:34 | 6767 |
| Kingman/Dolan Springs | 08:51:36 | -41.8 | Dark | Down | 21.2 | 142.6 | Low | 08:36:36 - 09:06:36 | 6748 |
| Laughlin/Bullhead City | 08:51:40 | -42.0 | Dark | Down | 20.9 | 142.2 | Low | 08:36:40 - 09:06:40 | 6733 |
| Mohave Valley | 08:51:42 | -42.2 | Dark | Down | 21.2 | 142.1 | Low | 08:36:42 - 09:06:42 | 6715 |
| George/Scottsdale | 08:51:28 | -42.3 | Dark | Down | 23.4 | 144.0 | Low | 08:36:28 - 09:06:28 | 6706 |
| Lake Havasu City | 08:51:41 | -42.5 | Dark | Down | 21.6 | 142.2 | Low | 08:36:41 - 09:06:41 | 6695 |
| Parker | 08:51:41 | -42.8 | Dark | Down | 21.9 | 142.2 | Low | 08:36:41 - 09:06:41 | 6673 |
| Idyllwild | 08:51:57 | -44.0 | Dark | Down | 21.0 | 140.1 | Low | 08:36:57 - 09:06:57 | 6584 |
| Calipatria | 08:51:53 | -44.1 | Dark | Down | 22.1 | 140.9 | Low | 08:36:53 - 09:06:53 | 6573 |
| Yuma | 08:51:49 | -44.2 | Dark | Down | 22.9 | 141.5 | Low | 08:36:49 - 09:06:49 | 6567 |
| Wildwood | 08:52:08 | -44.2 | Dark | Down | 19.7 | 138.8 | Really Low | 08:37:08 - 09:07:08 | 6556 |
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 04HC79, (2024/04/14 08:44UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 11.86 152 35Eta Oph 17:10:22.7 -15:43:29 2.6 8.01 156 PPM 266836 17:25:06.3 -24:14:37 6.4 1.44 163 PPM 266759 17:22:06.4 -23:34:26 8.2 0.51 163 PPM 266702 17:20:26.3 -23:37:04 9.6 0.23 162 04HC79 17:20:00.4 -23:24:23 14.9 162 Positions are for J2000
Event circumstances last updated at 2022/09/27 03:45:21 UT
Marc W. Buie, Southwest Research Institute