Event between 04HC79 and star GA0660:09820110 with event index number of 1969547
Geocentric closest approach at 2023/06/14 05:53:38 UTC
J2000 position of star is 17:08:49.7 -23:10:30
Equinox of date position of star is 17:10:12.3 -23:12:09
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 138 degrees from the moon.
Moon is 16% illuminated.
TNO apparent brightness V=23.1
[RECON map]
TNO is 39.9 AU from the Sun
and 38.8 AU from the Earth.
The TNO is moving 24.2
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 219 seconds.
The 1-sigma cross-track error in the shadow position is
1677 km.
The sky-plane scale is
28173.1 km/arcsec.
The TNO has an absolute magnitude Hv=7.1
Diameter=232.3 km assuming a 5% albedo -- 9.5 sec chord
Diameter=94.8 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is CLASSICAL
Star training set for 04HC79, (2023/06/14 05:53UT) Object RA Dec mag sep mel Antares 16:30:50.9 -26:28:55 0.9 9.52 146 35Eta Oph 17:11:43.5 -15:45:08 2.6 7.46 138 PPM 266403 17:07:36.0 -21:35:42 6.3 1.72 139 PPM 266547 17:13:48.5 -22:57:07 8.2 0.86 137 PPM 266457 17:09:58.4 -23:15:23 8.8 0.08 138 04HC79 17:10:14.9 -23:12:12 16.0 138 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
4.1 sigma about the mid-time.
The median site spacing is 12.4 km
RECON observability=0.5 and success probability=4.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 05:54:34 | -13.2 | AT | Down | 14.0 | 168.4 | Really Low | 05:39:34 - 06:09:34 | 3930 |
| Kamloops | 05:55:13 | -11.0 | NT | Down | 12.5 | 155.2 | Really Low | 05:40:13 - 06:10:13 | 3675 |
| Kelowna | 05:55:12 | -12.0 | NT | Down | 13.5 | 155.9 | Really Low | 05:40:12 - 06:10:12 | 3660 |
| Peachland | 05:55:12 | -12.0 | NT | Down | 13.5 | 155.6 | Really Low | 05:40:12 - 06:10:12 | 3650 |
| Summerland | 05:55:12 | -12.1 | AT | Down | 13.7 | 155.7 | Really Low | 05:40:12 - 06:10:12 | 3646 |
| Penticton | 05:55:13 | -12.2 | AT | Down | 13.8 | 155.8 | Really Low | 05:40:13 - 06:10:13 | 3645 |
| Oliver | 05:55:13 | -12.5 | AT | Down | 14.1 | 155.7 | Really Low | 05:40:13 - 06:10:13 | 3631 |
| Anarchist Mountain Observatory | 05:55:13 | -12.8 | AT | Down | 14.3 | 155.9 | Really Low | 05:40:13 - 06:10:13 | 3629 |
| Tonasket | 05:55:14 | -13.0 | AT | Down | 14.6 | 155.8 | Really Low | 05:40:14 - 06:10:14 | 3614 |
| Okanogan | 05:55:14 | -13.2 | AT | Down | 14.8 | 155.6 | Really Low | 05:40:14 - 06:10:14 | 3598 |
| Brewster | 05:55:15 | -13.4 | AT | Down | 15.0 | 155.4 | Really Low | 05:40:15 - 06:10:15 | 3583 |
| Manson/Chelan | 05:55:16 | -13.5 | AT | Down | 15.1 | 155.1 | Really Low | 05:40:16 - 06:10:16 | 3567 |
| Wenatchee | 05:55:17 | -13.8 | AT | Down | 15.5 | 154.9 | Really Low | 05:40:17 - 06:10:17 | 3544 |
| Victoria | 05:55:24 | -11.8 | NT | Down | 13.6 | 152.2 | Really Low | 05:40:24 - 06:10:24 | 3533 |
| Ellensburg | 05:55:19 | -14.1 | AT | Down | 15.8 | 154.6 | Really Low | 05:40:19 - 06:10:19 | 3522 |
| PNWRO | 05:55:15 | -15.5 | AT | Down | 17.2 | 156.0 | Really Low | 05:40:15 - 06:10:15 | 3509 |
| Yakima | 05:55:20 | -14.5 | AT | Down | 16.2 | 154.6 | Really Low | 05:40:20 - 06:10:20 | 3504 |
| Toppenish/White Swan | 05:55:19 | -14.7 | AT | Down | 16.4 | 154.7 | Really Low | 05:40:19 - 06:10:19 | 3497 |
| Goldendale | 05:55:21 | -15.1 | AT | Down | 16.8 | 154.2 | Really Low | 05:40:21 - 06:10:21 | 3464 |
| Dunrhomin | 05:54:38 | -24.7 | Dark | Down | 25.7 | 168.3 | Low | 05:39:38 - 06:09:38 | 3455 |
| The Dalles | 05:55:23 | -15.1 | AT | Down | 16.9 | 153.9 | Really Low | 05:40:23 - 06:10:23 | 3446 |
| CU-SBO | 05:54:38 | -24.9 | Dark | Down | 25.9 | 168.2 | Low | 05:39:38 - 06:09:38 | 3441 |
| Maupin | 05:55:23 | -15.5 | AT | Down | 17.3 | 153.9 | Really Low | 05:40:23 - 06:10:23 | 3429 |
| Sisters | 05:55:25 | -16.1 | AT | Down | 17.9 | 153.4 | Really Low | 05:40:25 - 06:10:25 | 3377 |
| Bend | 05:55:25 | -16.4 | AT | Down | 18.2 | 153.6 | Really Low | 05:40:25 - 06:10:25 | 3371 |
| Oregon Observatory | 05:55:25 | -16.5 | AT | Down | 18.3 | 153.4 | Really Low | 05:40:25 - 06:10:25 | 3360 |
| North Lake | 05:55:25 | -17.2 | AT | Down | 19.1 | 153.8 | Really Low | 05:40:25 - 06:10:25 | 3339 |
| Lakeview | 05:55:24 | -18.4 | Dark | Down | 20.2 | 154.1 | Low | 05:40:24 - 06:10:24 | 3296 |
| Chiloquin | 05:55:28 | -17.5 | AT | Down | 19.4 | 152.8 | Really Low | 05:40:28 - 06:10:28 | 3285 |
| Klamath Falls | 05:55:29 | -17.8 | AT | Down | 19.7 | 152.9 | Really Low | 05:40:29 - 06:10:29 | 3269 |
| Cedarville | 05:55:25 | -19.0 | Dark | Down | 20.9 | 154.2 | Low | 05:40:25 - 06:10:25 | 3265 |
| Fall River/Burney | 05:55:29 | -18.9 | Dark | Down | 20.9 | 153.0 | Low | 05:40:29 - 06:10:29 | 3214 |
| Susanville | 05:55:27 | -19.8 | Dark | Down | 21.7 | 153.6 | Low | 05:40:27 - 06:10:27 | 3195 |
| Gimple | 05:55:29 | -19.9 | Dark | Down | 21.9 | 153.3 | Low | 05:40:29 - 06:10:29 | 3175 |
| Greenville | 05:55:29 | -19.9 | Dark | Down | 21.9 | 153.3 | Low | 05:40:29 - 06:10:29 | 3174 |
| Portola | 05:55:27 | -20.4 | Dark | Down | 22.3 | 153.6 | Low | 05:40:27 - 06:10:27 | 3166 |
| Reno | 05:55:26 | -20.9 | Dark | Down | 22.8 | 154.2 | Low | 05:40:26 - 06:10:26 | 3165 |
| Quincy | 05:55:29 | -20.1 | Dark | Down | 22.0 | 153.2 | Low | 05:40:29 - 06:10:29 | 3163 |
| Yerington | 05:55:24 | -21.6 | Dark | Down | 23.5 | 154.7 | Low | 05:40:24 - 06:10:24 | 3147 |
| Carson City | 05:55:26 | -21.2 | Dark | Down | 23.1 | 154.1 | Low | 05:40:26 - 06:10:26 | 3145 |
| Tonopah | 05:55:19 | -23.1 | Dark | Down | 25.0 | 156.3 | Low | 05:40:19 - 06:10:19 | 3134 |
| Gardnerville | 05:55:26 | -21.4 | Dark | Down | 23.3 | 154.1 | Low | 05:40:26 - 06:10:26 | 3132 |
| Hawthorne | 05:55:23 | -22.2 | Dark | Down | 24.1 | 155.1 | Low | 05:40:23 - 06:10:23 | 3132 |
| Lee Vining | 05:55:25 | -22.5 | Dark | Down | 24.4 | 154.5 | Low | 05:40:25 - 06:10:25 | 3089 |
| Indian Springs | 05:55:16 | -25.0 | Dark | Down | 26.8 | 157.5 | Low | 05:40:16 - 06:10:16 | 3077 |
| Beatty | 05:55:19 | -24.3 | Dark | Down | 26.2 | 156.6 | Low | 05:40:19 - 06:10:19 | 3075 |
| Bishop | 05:55:24 | -23.3 | Dark | Down | 25.2 | 155.1 | Low | 05:40:24 - 06:10:24 | 3069 |
| Henderson | 05:55:13 | -25.7 | Dark | Down | 27.5 | 158.1 | Low | 05:40:13 - 06:10:13 | 3058 |
| Patrick | 05:55:10 | -26.7 | Dark | Down | 28.4 | 159.1 | Low | 05:40:10 - 06:10:10 | 3042 |
| Kingman/Dolan Springs | 05:55:11 | -26.8 | Dark | Down | 28.6 | 158.8 | Low | 05:40:11 - 06:10:11 | 3025 |
| Laughlin/Bullhead City | 05:55:13 | -26.7 | Dark | Down | 28.4 | 158.3 | Low | 05:40:13 - 06:10:13 | 3013 |
| Mohave Valley | 05:55:13 | -26.9 | Dark | Down | 28.7 | 158.3 | Low | 05:40:13 - 06:10:13 | 2996 |
| Lake Havasu City | 05:55:12 | -27.4 | Dark | Down | 29.1 | 158.4 | Low | 05:40:12 - 06:10:12 | 2976 |
| George/Scottsdale | 05:55:04 | -28.9 | Dark | Down | 30.6 | 160.7 | Up | 05:40:04 - 06:10:04 | 2974 |
| Parker | 05:55:13 | -27.7 | Dark | Down | 29.5 | 158.4 | Low | 05:40:13 - 06:10:13 | 2955 |
| Idyllwild | 05:55:21 | -27.1 | Dark | Down | 29.1 | 155.9 | Low | 05:40:21 - 06:10:21 | 2881 |
| Calipatria | 05:55:17 | -28.1 | Dark | Down | 30.0 | 157.0 | Up | 05:40:17 - 06:10:17 | 2865 |
| Wildwood | 05:55:27 | -26.0 | Dark | Down | 28.1 | 154.2 | Low | 05:40:27 - 06:10:27 | 2863 |
| Yuma | 05:55:15 | -28.9 | Dark | Down | 30.7 | 157.7 | Up | 05:40:15 - 06:10:15 | 2855 |
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, (2023/06/14 05:53UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 9.52 146 35Eta Oph 17:10:22.7 -15:43:29 2.6 7.46 138 PPM 266403 17:06:11.8 -21:33:54 6.3 1.72 139 PPM 266547 17:12:23.4 -22:55:31 8.2 0.86 137 PPM 266457 17:08:33.2 -23:13:40 8.8 0.08 138 04HC79 17:08:49.7 -23:10:30 16.0 138 Positions are for J2000
Event circumstances last updated at 2022/09/26 02:31:42 UT
Marc W. Buie, Southwest Research Institute