Event between (517717) 15KZ120 and star GA1600:02246653 with event index number of 301251
Geocentric closest approach at 2020/10/03 07:14:41 UTC
J2000 position of star is 18:01:27.2 +70:13:51
Equinox of date position of star is 18:01:13.9 +70:13:53
Stellar brightness G=15.2,
use SENSEUP=128
Star is 93 degrees from the moon.
Moon is 98% illuminated.
TNO apparent brightness V=20.0
[RECON map]
TNO is 8.9 AU from the Sun
and 8.8 AU from the Earth.
The TNO is moving 19.8
km/sec on the sky relative to the star, or,
11.1 arcsec/hr.
The 1-sigma error in the time of the event is 23 seconds.
The 1-sigma cross-track error in the shadow position is
391 km.
The sky-plane scale is
6418.0 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=60.3 km assuming a 5% albedo -- 3.0 sec chord
Diameter=24.6 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is CENTAURR
Star training set for 517717, (2020/10/03 07:15UT) Object RA Dec mag sep mel Deneb 20:42:08.4 +45:21:19 1.3 31.68 75 Kochab 14:50:40.0 +74:04:14 2.1 14.65 99 34Psi2Dra 17:54:49.7 +72:00:09 5.4 1.85 92 PPM 020642 17:55:01.0 +69:36:47 8.1 0.82 93 PPM 009702 18:00:00.5 +70:03:42 9.7 0.20 93 PPM 009712 18:01:36.6 +70:14:20 10.1 0.03 92 517717 18:01:13.8 +70:13:53 15.2 92 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 13.6 km
RECON observability=1.0 and success probability=0.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| George/Scottsdale | 07:15:35 | -60.5 | Dark | Up | 28.5 | 337.7 | Low | 07:13:10 - 07:18:01 | 3802 |
| Yuma | 07:15:48 | -61.3 | Dark | Up | 28.5 | 337.5 | Low | 07:13:23 - 07:18:14 | 3745 |
| Blythe | 07:15:46 | -60.4 | Dark | Up | 29.3 | 337.3 | Low | 07:13:21 - 07:18:12 | 3711 |
| DCO | 07:15:37 | -59.0 | Dark | Up | 30.2 | 337.2 | Up | 07:13:11 - 07:18:02 | 3702 |
| Parker | 07:15:43 | -59.9 | Dark | Up | 29.7 | 337.3 | Low | 07:13:18 - 07:18:09 | 3701 |
| Calipatria | 07:15:51 | -60.8 | Dark | Up | 29.1 | 337.3 | Low | 07:13:25 - 07:18:16 | 3696 |
| Lake Havasu City | 07:15:42 | -59.6 | Dark | Up | 30.0 | 337.2 | Up | 07:13:17 - 07:18:08 | 3686 |
| SwRI | 07:14:54 | -53.7 | Dark | Up | 32.4 | 337.3 | Up | 07:12:29 - 07:17:20 | 3685 |
| Niwot | 07:14:53 | -53.6 | Dark | Up | 32.4 | 337.3 | Up | 07:12:28 - 07:17:19 | 3682 |
| Kingman/Dolan Springs | 07:15:40 | -58.9 | Dark | Up | 30.6 | 337.0 | Up | 07:13:14 - 07:18:05 | 3668 |
| Patrick | 07:15:38 | -58.7 | Dark | Up | 30.7 | 337.0 | Up | 07:13:13 - 07:18:04 | 3665 |
| Mohave Valley | 07:15:42 | -59.2 | Dark | Up | 30.5 | 337.0 | Up | 07:13:17 - 07:18:08 | 3661 |
| Laughlin/Bullhead City | 07:15:42 | -58.9 | Dark | Up | 30.7 | 337.0 | Up | 07:13:16 - 07:18:07 | 3649 |
| Idyllwild | 07:15:53 | -60.1 | Dark | Up | 30.1 | 337.1 | Up | 07:13:28 - 07:18:19 | 3628 |
| Searchlight/Boulder City | 07:15:42 | -58.6 | Dark | Up | 31.1 | 336.9 | Up | 07:13:17 - 07:18:08 | 3625 |
| Henderson | 07:15:41 | -58.0 | Dark | Up | 31.7 | 336.7 | Up | 07:13:15 - 07:18:06 | 3598 |
| Indian Springs | 07:15:42 | -57.4 | Dark | Up | 32.4 | 336.5 | Up | 07:13:17 - 07:18:08 | 3550 |
| Wildwood | 07:16:00 | -59.4 | Dark | Up | 31.0 | 336.8 | Up | 07:13:34 - 07:18:25 | 3537 |
| Beatty | 07:15:45 | -56.9 | Dark | Up | 33.0 | 336.3 | Up | 07:13:20 - 07:18:11 | 3496 |
| Tonopah | 07:15:43 | -55.7 | Dark | Up | 34.2 | 335.9 | Up | 07:13:18 - 07:18:09 | 3428 |
| Bishop | 07:15:49 | -56.3 | Dark | Up | 34.0 | 336.0 | Up | 07:13:24 - 07:18:15 | 3412 |
| CPSLO | 07:16:04 | -57.8 | Dark | Up | 32.8 | 336.3 | Up | 07:13:39 - 07:18:30 | 3401 |
| Lee Vining | 07:15:50 | -55.5 | Dark | Up | 34.7 | 335.7 | Up | 07:13:25 - 07:18:16 | 3358 |
| Hawthorne | 07:15:48 | -55.1 | Dark | Up | 35.1 | 335.6 | Up | 07:13:22 - 07:18:13 | 3351 |
| Yerington | 07:15:48 | -54.5 | Dark | Up | 35.7 | 335.4 | Up | 07:13:22 - 07:18:13 | 3309 |
| Gardnerville | 07:15:50 | -54.5 | Dark | Up | 35.8 | 335.3 | Up | 07:13:25 - 07:18:16 | 3288 |
| Carson City | 07:15:50 | -54.2 | Dark | Up | 36.1 | 335.3 | Up | 07:13:24 - 07:18:15 | 3275 |
| Reno | 07:15:48 | -53.9 | Dark | Up | 36.4 | 335.2 | Up | 07:13:23 - 07:18:14 | 3257 |
| Portola | 07:15:49 | -53.5 | Dark | Up | 36.9 | 335.0 | Up | 07:13:24 - 07:18:15 | 3219 |
| Quincy | 07:15:51 | -53.3 | Dark | Up | 37.1 | 334.9 | Up | 07:13:26 - 07:18:17 | 3193 |
| Gimple | 07:15:50 | -53.1 | Dark | Up | 37.3 | 334.8 | Up | 07:13:24 - 07:18:15 | 3187 |
| Greenville | 07:15:51 | -53.1 | Dark | Up | 37.3 | 334.8 | Up | 07:13:25 - 07:18:16 | 3183 |
| Susanville | 07:15:49 | -52.9 | Dark | Up | 37.5 | 334.8 | Up | 07:13:23 - 07:18:14 | 3183 |
| Cedarville | 07:15:44 | -51.9 | Dark | Up | 38.3 | 334.5 | Up | 07:13:18 - 07:18:09 | 3149 |
| Fall River/Burney | 07:15:49 | -52.1 | Dark | Up | 38.3 | 334.5 | Up | 07:13:23 - 07:18:14 | 3122 |
| Lakeview | 07:15:42 | -51.2 | Dark | Up | 39.0 | 334.2 | Up | 07:13:17 - 07:18:08 | 3110 |
| Paisley | 07:15:41 | -50.7 | Dark | Up | 39.5 | 334.0 | Up | 07:13:16 - 07:18:07 | 3077 |
| Klamath Falls | 07:15:47 | -50.9 | Dark | Up | 39.5 | 334.0 | Up | 07:13:22 - 07:18:13 | 3050 |
| North Lake | 07:15:41 | -50.1 | Dark | Up | 40.1 | 333.8 | Up | 07:13:15 - 07:18:06 | 3035 |
| La Pine/Gilchrist | 07:15:41 | -49.6 | Dark | Up | 40.7 | 333.5 | Up | 07:13:16 - 07:18:07 | 2989 |
| Oregon Observatory | 07:15:40 | -49.4 | Dark | Up | 40.9 | 333.4 | Up | 07:13:15 - 07:18:06 | 2980 |
| Bend | 07:15:39 | -49.2 | Dark | Up | 41.0 | 333.4 | Up | 07:13:14 - 07:18:05 | 2977 |
| Redmond | 07:15:38 | -49.0 | Dark | Up | 41.1 | 333.3 | Up | 07:13:13 - 07:18:04 | 2971 |
| PNWRO | 07:15:26 | -47.7 | Dark | Up | 42.0 | 333.0 | Up | 07:13:00 - 07:17:51 | 2963 |
| Sisters | 07:15:39 | -48.9 | Dark | Up | 41.3 | 333.3 | Up | 07:13:14 - 07:18:05 | 2954 |
| Pasco | 07:15:26 | -47.4 | Dark | Up | 42.2 | 332.8 | Up | 07:13:00 - 07:17:51 | 2940 |
| Maupin | 07:15:35 | -48.2 | Dark | Up | 41.9 | 333.0 | Up | 07:13:10 - 07:18:01 | 2926 |
| Goldendale | 07:15:32 | -47.6 | Dark | Up | 42.4 | 332.7 | Up | 07:13:07 - 07:17:58 | 2902 |
| The Dalles | 07:15:34 | -47.7 | Dark | Up | 42.3 | 332.8 | Up | 07:13:09 - 07:18:00 | 2900 |
| Toppenish/White Swan | 07:15:29 | -47.1 | Dark | Up | 42.8 | 332.6 | Up | 07:13:04 - 07:17:55 | 2887 |
| Yakima | 07:15:29 | -46.9 | Dark | Up | 43.0 | 332.5 | Up | 07:13:03 - 07:17:54 | 2869 |
| Ellensburg | 07:15:28 | -46.5 | Dark | Up | 43.4 | 332.3 | Up | 07:13:02 - 07:17:53 | 2847 |
| Wenatchee | 07:15:26 | -46.1 | Dark | Up | 43.7 | 332.1 | Up | 07:13:00 - 07:17:51 | 2831 |
| Entiat | 07:15:24 | -45.9 | Dark | Up | 43.9 | 332.0 | Up | 07:12:59 - 07:17:50 | 2820 |
| Brewster | 07:15:22 | -45.5 | Dark | Up | 44.1 | 331.9 | Up | 07:12:56 - 07:17:47 | 2811 |
| Manson/Chelan | 07:15:24 | -45.7 | Dark | Up | 44.0 | 331.9 | Up | 07:12:58 - 07:17:49 | 2810 |
| Okanogan | 07:15:21 | -45.3 | Dark | Up | 44.3 | 331.8 | Up | 07:12:55 - 07:17:46 | 2802 |
| Tonasket | 07:15:19 | -45.0 | Dark | Up | 44.5 | 331.7 | Up | 07:12:54 - 07:17:45 | 2788 |
| Anarchist Mountain Observatory | 07:15:18 | -44.7 | Dark | Up | 44.8 | 331.6 | Up | 07:12:53 - 07:17:44 | 2773 |
| Oliver | 07:15:18 | -44.5 | Dark | Up | 45.0 | 331.4 | Up | 07:12:52 - 07:17:43 | 2755 |
| Penticton | 07:15:17 | -44.1 | Dark | Up | 45.3 | 331.3 | Up | 07:12:52 - 07:17:43 | 2734 |
| Summerland | 07:15:17 | -44.1 | Dark | Up | 45.4 | 331.2 | Up | 07:12:51 - 07:17:42 | 2726 |
| Kelowna | 07:15:15 | -43.8 | Dark | Up | 45.6 | 331.1 | Up | 07:12:50 - 07:17:41 | 2717 |
| Peachland | 07:15:17 | -43.9 | Dark | Up | 45.5 | 331.1 | Up | 07:12:51 - 07:17:42 | 2714 |
| Clarence Fulton | 07:15:13 | -43.5 | Dark | Up | 45.8 | 331.0 | Up | 07:12:48 - 07:17:39 | 2699 |
| Victoria | 07:15:31 | -44.5 | Dark | Up | 45.6 | 331.1 | Up | 07:13:06 - 07:17:57 | 2652 |
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, (2020/10/03 07:15UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 31.68 75 Kochab 14:50:42.2 +74:09:20 2.1 14.65 99 34Psi2Dra 17:55:11.2 +72:00:19 5.4 1.85 92 PPM 020642 17:55:11.8 +69:36:56 8.1 0.82 93 PPM 009702 18:00:13.2 +70:03:42 9.7 0.20 93 PPM 009712 18:01:50.0 +70:14:16 10.1 0.03 92 517717 18:01:27.2 +70:13:51 15.2 92 Positions are for J2000
Event circumstances last updated at 2020/08/28 21:30:38 UT
Marc W. Buie, Southwest Research Institute