Event between (517717) 15KZ120 and star GA1520:03098201 with event index number of 2627723
Geocentric closest approach at 2023/12/15 02:47:00 UTC
J2000 position of star is 03:03:03.1 +63:18:36
Equinox of date position of star is 03:04:56.7 +63:23:53
Stellar brightness G=15.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 124 degrees from the moon.
Moon is 6% illuminated.
TNO apparent brightness V=21.2
[RECON map]
TNO is 12.2 AU from the Sun
and 11.6 AU from the Earth.
The TNO is moving 31.9
km/sec on the sky relative to the star, or,
13.7 arcsec/hr.
The 1-sigma error in the time of the event is 58 seconds.
The 1-sigma cross-track error in the shadow position is
1694 km.
The sky-plane scale is
8378.6 km/arcsec.
The TNO has an absolute magnitude Hv=10.1
Diameter=57.5 km assuming a 5% albedo -- 1.8 sec chord
Diameter=23.5 km assuming a 30% albedo -- 0.7 sec chord
Dynamical classification is CENTAURR
Star training set for 517717, (2023/12/15 02:47UT) Object RA Dec mag sep mel Deneb 20:42:15.0 +45:22:01 1.3 52.77 74 37Del Cas 01:27:24.2 +60:21:32 2.7 11.82 112 PPM 014083 03:09:20.8 +64:08:54 5.8 0.88 124 PPM 013988 02:59:57.0 +63:22:30 8.5 0.57 123 PPM 014024 03:03:22.5 +63:26:13 8.7 0.19 124 517717 03:05:02.7 +63:24:09 15.1 124 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 7.0 km
RECON observability=1.0 and success probability=9.9%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 02:48:00 | -23.6 | Dark | Down | 62.2 | 41.7 | Up | 02:42:42 - 02:53:18 | 4159 |
| Chiloquin | 02:48:30 | -23.7 | Dark | Down | 58.2 | 34.8 | Up | 02:43:12 - 02:53:48 | 3977 |
| Sisters | 02:48:25 | -24.2 | Dark | Down | 59.8 | 36.4 | Up | 02:43:07 - 02:53:43 | 3974 |
| Klamath Falls | 02:48:31 | -23.7 | Dark | Down | 58.0 | 34.5 | Up | 02:43:13 - 02:53:49 | 3966 |
| Yakima | 02:48:00 | -25.2 | Dark | Down | 62.0 | 38.7 | Up | 02:42:42 - 02:53:18 | 3962 |
| Oregon Observatory | 02:48:26 | -24.3 | Dark | Down | 59.5 | 36.0 | Up | 02:43:08 - 02:53:44 | 3960 |
| Ellensburg | 02:48:00 | -25.3 | Dark | Down | 62.3 | 39.1 | Up | 02:42:42 - 02:53:18 | 3960 |
| The Dalles | 02:48:21 | -24.7 | Dark | Down | 61.0 | 37.7 | Up | 02:43:03 - 02:53:39 | 3959 |
| Kamloops | 02:48:00 | -25.8 | Dark | Down | 65.1 | 44.0 | Up | 02:42:42 - 02:53:18 | 3953 |
| Bend | 02:48:25 | -24.4 | Dark | Down | 59.7 | 36.1 | Up | 02:43:07 - 02:53:43 | 3952 |
| Maupin | 02:48:22 | -24.7 | Dark | Down | 60.7 | 37.2 | Up | 02:43:04 - 02:53:40 | 3947 |
| Wenatchee | 02:48:00 | -25.5 | Dark | Down | 62.7 | 39.6 | Up | 02:42:42 - 02:53:18 | 3943 |
| Goldendale | 02:48:20 | -25.0 | Dark | Down | 61.3 | 37.8 | Up | 02:43:02 - 02:53:38 | 3934 |
| Manson/Chelan | 02:48:00 | -25.7 | Dark | Down | 63.1 | 40.1 | Up | 02:42:42 - 02:53:18 | 3931 |
| Fall River/Burney | 02:48:35 | -23.8 | Dark | Down | 57.2 | 33.3 | Up | 02:43:17 - 02:53:53 | 3921 |
| North Lake | 02:48:28 | -24.5 | Dark | Down | 59.2 | 35.2 | Up | 02:43:10 - 02:53:46 | 3910 |
| Toppenish/White Swan | 02:48:19 | -25.3 | Dark | Down | 61.9 | 38.3 | Up | 02:43:01 - 02:53:37 | 3909 |
| Peachland | 02:48:00 | -26.1 | Dark | Down | 64.7 | 42.5 | Up | 02:42:42 - 02:53:18 | 3907 |
| Brewster | 02:48:00 | -25.9 | Dark | Down | 63.5 | 40.3 | Up | 02:42:42 - 02:53:18 | 3904 |
| Summerland | 02:48:00 | -26.2 | Dark | Down | 64.6 | 42.3 | Up | 02:42:42 - 02:53:18 | 3900 |
| Penticton | 02:48:00 | -26.2 | Dark | Down | 64.6 | 42.2 | Up | 02:42:42 - 02:53:18 | 3892 |
| Oliver | 02:48:00 | -26.2 | Dark | Down | 64.4 | 41.7 | Up | 02:42:42 - 02:53:18 | 3891 |
| Okanogan | 02:48:00 | -26.1 | Dark | Down | 63.8 | 40.6 | Up | 02:42:42 - 02:53:18 | 3890 |
| Kelowna | 02:48:00 | -26.3 | Dark | Down | 64.9 | 42.6 | Up | 02:42:42 - 02:53:18 | 3887 |
| Tonasket | 02:48:00 | -26.2 | Dark | Down | 64.1 | 41.0 | Up | 02:42:42 - 02:53:18 | 3881 |
| Anarchist Mountain Observatory | 02:48:00 | -26.3 | Dark | Down | 64.3 | 41.4 | Up | 02:42:42 - 02:53:18 | 3877 |
| Greenville | 02:48:38 | -24.0 | Dark | Down | 56.6 | 32.4 | Up | 02:43:20 - 02:53:56 | 3872 |
| Quincy | 02:48:39 | -24.0 | Dark | Down | 56.4 | 32.2 | Up | 02:43:21 - 02:53:57 | 3869 |
| Gimple | 02:48:37 | -24.0 | Dark | Down | 56.6 | 32.4 | Up | 02:43:19 - 02:53:55 | 3865 |
| Lakeview | 02:48:32 | -24.8 | Dark | Down | 58.6 | 34.0 | Up | 02:43:14 - 02:53:50 | 3853 |
| Susanville | 02:48:37 | -24.3 | Dark | Down | 57.0 | 32.5 | Up | 02:43:19 - 02:53:55 | 3852 |
| Cedarville | 02:48:33 | -24.8 | Dark | Down | 58.1 | 33.3 | Up | 02:43:15 - 02:53:51 | 3829 |
| Portola | 02:48:39 | -24.3 | Dark | Down | 56.5 | 32.0 | Up | 02:43:21 - 02:53:57 | 3828 |
| PNWRO | 02:48:20 | -26.3 | Dark | Down | 62.3 | 37.4 | Up | 02:43:02 - 02:53:38 | 3794 |
| Reno | 02:48:39 | -24.7 | Dark | Down | 56.6 | 31.5 | Up | 02:43:21 - 02:53:57 | 3770 |
| Carson City | 02:48:40 | -24.7 | Dark | Down | 56.3 | 31.2 | Up | 02:43:22 - 02:53:58 | 3763 |
| Gardnerville | 02:48:42 | -24.7 | Dark | Down | 56.1 | 31.0 | Up | 02:43:24 - 02:54:00 | 3755 |
| Yerington | 02:48:42 | -25.1 | Dark | Down | 56.4 | 30.9 | Up | 02:43:24 - 02:54:00 | 3707 |
| Lee Vining | 02:48:44 | -25.0 | Dark | Down | 55.5 | 30.1 | Up | 02:43:26 - 02:54:02 | 3686 |
| Hawthorne | 02:48:43 | -25.5 | Dark | Down | 56.2 | 30.3 | Up | 02:43:25 - 02:54:01 | 3655 |
| Bishop | 02:48:46 | -25.5 | Dark | Down | 55.3 | 29.4 | Up | 02:43:28 - 02:54:04 | 3613 |
| Wildwood | 02:48:55 | -24.7 | Dark | Down | 52.3 | 27.3 | Up | 02:43:37 - 02:54:13 | 3568 |
| Tonopah | 02:48:44 | -26.5 | Dark | Down | 56.3 | 29.4 | Up | 02:43:26 - 02:54:02 | 3527 |
| Beatty | 02:48:48 | -26.7 | Dark | Down | 55.5 | 28.4 | Up | 02:43:30 - 02:54:06 | 3465 |
| Idyllwild | 02:48:56 | -26.1 | Dark | Down | 52.7 | 26.3 | Up | 02:43:38 - 02:54:14 | 3393 |
| Indian Springs | 02:48:48 | -27.5 | Dark | Down | 55.6 | 27.7 | Up | 02:43:30 - 02:54:06 | 3365 |
| Henderson | 02:48:50 | -27.9 | Dark | Down | 55.4 | 27.0 | Up | 02:43:32 - 02:54:08 | 3293 |
| Calipatria | 02:48:58 | -27.0 | Dark | Down | 52.6 | 25.5 | Up | 02:43:40 - 02:54:16 | 3273 |
| Laughlin/Bullhead City | 02:48:52 | -28.1 | Dark | Down | 54.8 | 26.2 | Up | 02:43:34 - 02:54:10 | 3236 |
| Mohave Valley | 02:48:52 | -28.1 | Dark | Down | 54.5 | 26.1 | Up | 02:43:34 - 02:54:10 | 3229 |
| Lake Havasu City | 02:48:54 | -28.2 | Dark | Down | 54.3 | 25.7 | Up | 02:43:36 - 02:54:12 | 3198 |
| Kingman/Dolan Springs | 02:48:51 | -28.5 | Dark | Down | 55.0 | 26.0 | Up | 02:43:33 - 02:54:09 | 3191 |
| Parker | 02:48:55 | -28.2 | Dark | Down | 54.0 | 25.5 | Up | 02:43:37 - 02:54:13 | 3187 |
| Yuma | 02:48:59 | -27.6 | Dark | Down | 52.5 | 24.8 | Up | 02:43:41 - 02:54:17 | 3181 |
| Patrick | 02:48:51 | -28.7 | Dark | Down | 55.2 | 26.1 | Up | 02:43:33 - 02:54:09 | 3180 |
| Sleaford | 02:47:56 | -34.8 | Dark | Down | 72.3 | 40.6 | Up | 02:42:38 - 02:53:14 | 3013 |
| George/Scottsdale | 02:48:56 | -30.1 | Dark | Down | 54.4 | 24.0 | Up | 02:43:38 - 02:54:14 | 2959 |
| Dunrhomin | 02:48:33 | -36.0 | Dark | Down | 62.5 | 24.6 | Up | 02:43:15 - 02:53:51 | 2585 |
| CU-SBO | 02:48:34 | -35.9 | Dark | Down | 62.3 | 24.4 | Up | 02:43:16 - 02:53:52 | 2585 |
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 517717, (2023/12/15 02:47UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 52.77 74 37Del Cas 01:25:49.9 +60:14:06 2.7 11.82 112 PPM 014083 03:07:18.9 +64:03:27 5.8 0.88 124 PPM 013988 02:57:58.5 +63:16:49 8.5 0.57 123 PPM 014024 03:01:23.2 +63:20:37 8.7 0.19 124 517717 03:03:03.1 +63:18:36 15.1 124 Positions are for J2000
Event circumstances last updated at 2022/10/08 04:19:33 UT
Marc W. Buie, Southwest Research Institute