Event between (517717) 15KZ120 and star GA1620:02601583 with event index number of 2627059
Geocentric closest approach at 2022/02/08 10:29:17 UTC
J2000 position of star is 23:40:29.4 +72:26:20
Equinox of date position of star is 23:41:29.1 +72:33:38
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 63 degrees from the moon.
Moon is 49% illuminated.
TNO apparent brightness V=20.6
[RECON map]
TNO is 10.1 AU from the Sun
and 10.0 AU from the Earth.
The TNO is moving 37.8
km/sec on the sky relative to the star, or,
18.7 arcsec/hr.
The 1-sigma error in the time of the event is 26 seconds.
The 1-sigma cross-track error in the shadow position is
578 km.
The sky-plane scale is
7280.8 km/arcsec.
The TNO has an absolute magnitude Hv=10.1
Diameter=57.5 km assuming a 5% albedo -- 1.5 sec chord
Diameter=23.5 km assuming a 30% albedo -- 0.6 sec chord
Dynamical classification is CENTAURR
Star training set for 517717, (2022/02/08 10:29UT) Object RA Dec mag sep mel Deneb 20:42:11.2 +45:21:37 1.3 34.09 82 Caph 00:10:22.3 +59:16:18 2.3 13.59 53 PPM 011633 23:28:13.5 +70:28:54 5.7 2.33 63 PPM 011708 23:40:20.6 +72:04:11 8.3 0.50 63 PPM 011745 23:44:51.9 +72:16:09 9.5 0.39 63 517717 23:41:29.6 +72:33:41 16.9 63 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 12.2 km
RECON observability=0.7 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) |
| CPSLO | 10:28:08 | -54.2 | Dark | Down | 17.7 | 359.9 | Really Low | 10:25:28 - 10:30:48 | 3886 |
| Wildwood | 10:28:03 | -53.2 | Dark | Down | 16.5 | 0.6 | Really Low | 10:25:23 - 10:30:43 | 3839 |
| Idyllwild | 10:27:59 | -51.9 | Dark | Down | 16.2 | 1.2 | Really Low | 10:25:19 - 10:30:39 | 3768 |
| Lee Vining | 10:28:06 | -51.9 | Dark | Down | 20.4 | 0.4 | Low | 10:25:26 - 10:30:46 | 3740 |
| Quincy | 10:28:10 | -52.2 | Dark | Down | 22.4 | 359.8 | Low | 10:25:30 - 10:30:50 | 3736 |
| Bishop | 10:28:04 | -51.7 | Dark | Down | 19.8 | 0.6 | Really Low | 10:25:24 - 10:30:44 | 3731 |
| Gardnerville | 10:28:08 | -51.9 | Dark | Down | 21.4 | 0.2 | Low | 10:25:28 - 10:30:48 | 3729 |
| Calipatria | 10:27:56 | -51.2 | Dark | Down | 15.6 | 1.5 | Really Low | 10:25:16 - 10:30:36 | 3728 |
| Greenville | 10:28:11 | -52.1 | Dark | Down | 22.6 | 359.8 | Low | 10:25:31 - 10:30:51 | 3728 |
| Gimple | 10:28:10 | -52.0 | Dark | Down | 22.6 | 359.9 | Low | 10:25:30 - 10:30:50 | 3725 |
| Portola | 10:28:09 | -51.9 | Dark | Down | 22.2 | 360.0 | Low | 10:25:29 - 10:30:49 | 3724 |
| Carson City | 10:28:08 | -51.8 | Dark | Down | 21.6 | 0.2 | Low | 10:25:28 - 10:30:48 | 3722 |
| Reno | 10:28:08 | -51.6 | Dark | Down | 22.0 | 0.2 | Low | 10:25:28 - 10:30:48 | 3710 |
| Fall River/Burney | 10:28:12 | -51.8 | Dark | Down | 23.5 | 359.7 | Low | 10:25:32 - 10:30:52 | 3708 |
| Susanville | 10:28:10 | -51.7 | Dark | Down | 22.9 | 359.9 | Low | 10:25:30 - 10:30:50 | 3707 |
| Yerington | 10:28:06 | -51.5 | Dark | Down | 21.4 | 0.4 | Low | 10:25:26 - 10:30:46 | 3705 |
| Hawthorne | 10:28:05 | -51.3 | Dark | Down | 21.0 | 0.6 | Low | 10:25:25 - 10:30:45 | 3701 |
| Yuma | 10:27:54 | -50.6 | Dark | Down | 15.2 | 1.8 | Really Low | 10:25:14 - 10:30:34 | 3697 |
| Beatty | 10:28:00 | -50.7 | Dark | Down | 19.4 | 1.2 | Really Low | 10:25:20 - 10:30:40 | 3678 |
| Blythe | 10:27:54 | -50.3 | Dark | Down | 16.1 | 1.8 | Really Low | 10:25:14 - 10:30:34 | 3672 |
| Klamath Falls | 10:28:13 | -51.4 | Dark | Down | 24.7 | 359.6 | Low | 10:25:33 - 10:30:53 | 3672 |
| Tonopah | 10:28:02 | -50.6 | Dark | Down | 20.5 | 1.0 | Low | 10:25:22 - 10:30:42 | 3660 |
| Chiloquin | 10:28:14 | -51.3 | Dark | Down | 25.0 | 359.5 | Low | 10:25:34 - 10:30:54 | 3659 |
| Cedarville | 10:28:10 | -50.8 | Dark | Down | 24.0 | 0.1 | Low | 10:25:30 - 10:30:50 | 3645 |
| Parker | 10:27:54 | -49.9 | Dark | Down | 16.7 | 1.9 | Really Low | 10:25:14 - 10:30:34 | 3645 |
| Indian Springs | 10:27:58 | -50.1 | Dark | Down | 19.1 | 1.5 | Really Low | 10:25:18 - 10:30:38 | 3641 |
| Mohave Valley | 10:27:55 | -49.8 | Dark | Down | 17.4 | 1.8 | Really Low | 10:25:15 - 10:30:35 | 3638 |
| Lake Havasu City | 10:27:54 | -49.8 | Dark | Down | 17.0 | 1.9 | Really Low | 10:25:14 - 10:30:34 | 3637 |
| Laughlin/Bullhead City | 10:27:55 | -49.8 | Dark | Down | 17.7 | 1.8 | Really Low | 10:25:15 - 10:30:35 | 3631 |
| Henderson | 10:27:56 | -49.8 | Dark | Down | 18.5 | 1.7 | Really Low | 10:25:16 - 10:30:36 | 3625 |
| Lakeview | 10:28:10 | -50.6 | Dark | Down | 24.6 | 0.0 | Low | 10:25:30 - 10:30:50 | 3624 |
| Paisley | 10:28:11 | -50.4 | Dark | Down | 25.1 | 360.0 | Low | 10:25:31 - 10:30:51 | 3609 |
| Kingman/Dolan Springs | 10:27:54 | -49.4 | Dark | Down | 17.7 | 2.0 | Really Low | 10:25:14 - 10:30:34 | 3606 |
| La Pine/Gilchrist | 10:28:13 | -50.4 | Dark | Down | 26.1 | 359.6 | Low | 10:25:33 - 10:30:53 | 3598 |
| North Lake | 10:28:12 | -50.3 | Dark | Down | 25.7 | 359.8 | Low | 10:25:32 - 10:30:52 | 3597 |
| Patrick | 10:27:54 | -49.1 | Dark | Down | 17.9 | 2.1 | Really Low | 10:25:14 - 10:30:34 | 3591 |
| Oregon Observatory | 10:28:13 | -50.2 | Dark | Down | 26.3 | 359.7 | Low | 10:25:33 - 10:30:53 | 3587 |
| Bend | 10:28:13 | -50.1 | Dark | Down | 26.5 | 359.7 | Low | 10:25:33 - 10:30:53 | 3575 |
| Sisters | 10:28:14 | -50.1 | Dark | Down | 26.7 | 359.6 | Low | 10:25:34 - 10:30:54 | 3572 |
| Redmond | 10:28:13 | -49.8 | Dark | Down | 26.7 | 359.8 | Low | 10:25:33 - 10:30:53 | 3560 |
| George/Scottsdale | 10:27:49 | -48.1 | Dark | Down | 16.3 | 2.7 | Really Low | 10:25:09 - 10:30:29 | 3536 |
| Maupin | 10:28:13 | -49.2 | Dark | Down | 27.6 | 359.8 | Low | 10:25:33 - 10:30:53 | 3514 |
| The Dalles | 10:28:14 | -49.1 | Dark | Down | 28.0 | 359.7 | Low | 10:25:34 - 10:30:54 | 3498 |
| Goldendale | 10:28:13 | -48.7 | Dark | Down | 28.3 | 359.9 | Low | 10:25:33 - 10:30:53 | 3475 |
| Toppenish/White Swan | 10:28:13 | -48.1 | Dark | Down | 28.8 | 0.0 | Low | 10:25:33 - 10:30:53 | 3434 |
| Yakima | 10:28:13 | -48.1 | Dark | Down | 29.0 | 360.0 | Low | 10:25:33 - 10:30:53 | 3430 |
| Victoria | 10:28:19 | -48.3 | Dark | Down | 31.0 | 359.0 | Up | 10:25:39 - 10:30:59 | 3417 |
| Ellensburg | 10:28:13 | -47.8 | Dark | Down | 29.4 | 360.0 | Low | 10:25:33 - 10:30:53 | 3409 |
| PNWRO | 10:28:09 | -47.5 | Dark | Down | 28.4 | 0.5 | Low | 10:25:29 - 10:30:49 | 3401 |
| Pasco | 10:28:10 | -47.5 | Dark | Down | 28.7 | 0.5 | Low | 10:25:30 - 10:30:50 | 3397 |
| Wenatchee | 10:28:13 | -47.5 | Dark | Down | 29.8 | 0.0 | Low | 10:25:33 - 10:30:53 | 3381 |
| Manson/Chelan | 10:28:13 | -47.1 | Dark | Down | 30.3 | 0.1 | Up | 10:25:33 - 10:30:53 | 3352 |
| Brewster | 10:28:13 | -46.8 | Dark | Down | 30.5 | 0.2 | Up | 10:25:33 - 10:30:53 | 3329 |
| Okanogan | 10:28:13 | -46.5 | Dark | Down | 30.8 | 0.3 | Up | 10:25:33 - 10:30:53 | 3309 |
| Tonasket | 10:28:13 | -46.2 | Dark | Down | 31.1 | 0.4 | Up | 10:25:33 - 10:30:53 | 3286 |
| Anarchist Mountain Observatory | 10:28:13 | -46.0 | Dark | Down | 31.5 | 0.4 | Up | 10:25:33 - 10:30:53 | 3269 |
| Oliver | 10:28:13 | -46.0 | Dark | Down | 31.6 | 0.3 | Up | 10:25:33 - 10:30:53 | 3265 |
| Summerland | 10:28:13 | -45.7 | Dark | Down | 32.0 | 0.3 | Up | 10:25:33 - 10:30:53 | 3247 |
| Penticton | 10:28:13 | -45.7 | Dark | Down | 32.0 | 0.3 | Up | 10:25:33 - 10:30:53 | 3247 |
| Peachland | 10:28:14 | -45.7 | Dark | Down | 32.2 | 0.2 | Up | 10:25:34 - 10:30:54 | 3242 |
| Kelowna | 10:28:14 | -45.5 | Dark | Down | 32.3 | 0.4 | Up | 10:25:34 - 10:30:54 | 3227 |
| Kamloops | 10:28:15 | -45.4 | Dark | Down | 33.1 | 0.0 | Up | 10:25:35 - 10:30:55 | 3211 |
| Dunrhomin | 10:27:41 | -41.1 | Dark | Down | 23.2 | 4.9 | Low | 10:25:01 - 10:30:21 | 3010 |
| Sleaford | 10:27:55 | -37.2 | Dark | Down | 34.9 | 5.3 | Up | 10:25:15 - 10:30:35 | 2605 |
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, (2022/02/08 10:29UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 34.09 82 Caph 00:09:12.2 +59:08:55 2.3 13.59 53 PPM 011633 23:27:17.2 +70:21:35 5.7 2.33 63 PPM 011708 23:39:20.6 +71:56:50 8.3 0.50 63 PPM 011745 23:43:50.2 +72:08:47 9.5 0.39 63 517717 23:40:29.4 +72:26:20 16.9 63 Positions are for J2000
Event circumstances last updated at 2021/12/06 01:46:15 UT
Marc W. Buie, Southwest Research Institute