Event between 05JJ186 and star GA0640:21957101 with event index number of 1040130
Geocentric closest approach at 2020/07/16 06:17:16 UTC
J2000 position of star is 18:01:35.8 -25:22:33
Equinox of date position of star is 18:02:51.7 -25:22:29
Stellar brightness G=16.1,
use SENSEUP=128
Star is 150 degrees from the moon.
Moon is 21% illuminated.
TNO apparent brightness V=26.1
[RECON map]
TNO is 40.9 AU from the Sun
and 40.0 AU from the Earth.
The TNO is moving 22.0
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 2785 seconds.
The 1-sigma cross-track error in the shadow position is
5747 km.
The sky-plane scale is
29020.3 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=270.4 km assuming a 5% albedo -- 2.7 sec chord
Diameter=110.4 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CLASSICAL
Star training set for 05JJ186, (2020/07/16 06:17UT) Object RA Dec mag sep mel Antares 16:30:40.2 -26:28:33 0.9 20.73 168 Nunki 18:56:32.3 -26:16:10 2.0 12.11 138 PPM 267497 17:56:10.0 -24:53:21 6.4 1.59 151 PPM 267715 18:03:35.7 -24:52:04 8.3 0.53 150 PPM 267703 18:03:03.2 -25:37:31 9.5 0.25 150 05JJ186 18:02:52.0 -25:22:29 16.1 150 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
0.3 sigma about the mid-time.
The median site spacing is 11.8 km
RECON observability=0.7 and success probability=2.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Clarence Fulton | 06:17:20 | -14.7 | AT | Down | 14.4 | 179.2 | Really Low | 06:02:20 - 06:32:20 | 3783 |
| Kelowna | 06:17:21 | -15.0 | AT | Down | 14.8 | 179.1 | Really Low | 06:02:21 - 06:32:21 | 3772 |
| Peachland | 06:17:21 | -15.1 | AT | Down | 14.9 | 178.8 | Really Low | 06:02:21 - 06:32:21 | 3769 |
| Summerland | 06:17:21 | -15.2 | AT | Down | 15.0 | 178.9 | Really Low | 06:02:21 - 06:32:21 | 3765 |
| Penticton | 06:17:21 | -15.3 | AT | Down | 15.1 | 179.0 | Really Low | 06:02:21 - 06:32:21 | 3763 |
| Oliver | 06:17:21 | -15.6 | AT | Down | 15.4 | 179.0 | Really Low | 06:02:21 - 06:32:21 | 3753 |
| Anarchist Mountain Observatory | 06:17:20 | -15.8 | AT | Down | 15.6 | 179.2 | Really Low | 06:02:20 - 06:32:20 | 3748 |
| Tonasket | 06:17:21 | -16.1 | AT | Down | 15.9 | 179.1 | Really Low | 06:02:21 - 06:32:21 | 3738 |
| Okanogan | 06:17:21 | -16.4 | AT | Down | 16.3 | 179.0 | Really Low | 06:02:21 - 06:32:21 | 3728 |
| Victoria | 06:17:33 | -15.1 | AT | Down | 16.0 | 175.4 | Really Low | 06:02:33 - 06:32:33 | 3726 |
| Brewster | 06:17:21 | -16.5 | AT | Down | 16.5 | 178.8 | Really Low | 06:02:21 - 06:32:21 | 3719 |
| Manson/Chelan | 06:17:23 | -16.6 | AT | Down | 16.7 | 178.4 | Really Low | 06:02:23 - 06:32:23 | 3712 |
| Entiat | 06:17:23 | -16.8 | AT | Down | 16.9 | 178.4 | Really Low | 06:02:23 - 06:32:23 | 3705 |
| Wenatchee | 06:17:23 | -17.0 | AT | Down | 17.2 | 178.3 | Really Low | 06:02:23 - 06:32:23 | 3697 |
| Ellensburg | 06:17:24 | -17.3 | AT | Down | 17.6 | 178.1 | Really Low | 06:02:24 - 06:32:24 | 3683 |
| Yakima | 06:17:24 | -17.7 | AT | Down | 18.0 | 178.0 | Really Low | 06:02:24 - 06:32:24 | 3669 |
| Toppenish/White Swan | 06:17:24 | -17.9 | AT | Down | 18.2 | 178.2 | Really Low | 06:02:24 - 06:32:24 | 3661 |
| Pasco | 06:17:19 | -18.4 | Dark | Down | 18.4 | 179.4 | Really Low | 06:02:19 - 06:32:19 | 3658 |
| PNWRO | 06:17:18 | -18.7 | Dark | Down | 18.6 | 179.6 | Really Low | 06:02:18 - 06:32:18 | 3650 |
| Goldendale | 06:17:25 | -18.3 | Dark | Down | 18.8 | 177.8 | Really Low | 06:02:25 - 06:32:25 | 3641 |
| The Dalles | 06:17:26 | -18.3 | Dark | Down | 19.0 | 177.4 | Really Low | 06:02:26 - 06:32:26 | 3632 |
| Maupin | 06:17:26 | -18.7 | Dark | Down | 19.4 | 177.5 | Really Low | 06:02:26 - 06:32:26 | 3617 |
| Sisters | 06:17:28 | -19.4 | Dark | Down | 20.3 | 177.1 | Low | 06:02:28 - 06:32:28 | 3584 |
| Redmond | 06:17:27 | -19.5 | Dark | Down | 20.3 | 177.4 | Low | 06:02:27 - 06:32:27 | 3584 |
| Bend | 06:17:28 | -19.7 | Dark | Down | 20.5 | 177.3 | Low | 06:02:28 - 06:32:28 | 3575 |
| Oregon Observatory | 06:17:28 | -19.8 | Dark | Down | 20.7 | 177.2 | Low | 06:02:28 - 06:32:28 | 3568 |
| La Pine/Gilchrist | 06:17:28 | -19.9 | Dark | Down | 20.9 | 177.1 | Low | 06:02:28 - 06:32:28 | 3560 |
| North Lake | 06:17:26 | -20.5 | Dark | Down | 21.3 | 177.7 | Low | 06:02:26 - 06:32:26 | 3544 |
| Paisley | 06:17:25 | -21.1 | Dark | Down | 21.9 | 178.0 | Low | 06:02:25 - 06:32:25 | 3522 |
| Lakeview | 06:17:24 | -21.6 | Dark | Down | 22.4 | 178.2 | Low | 06:02:24 - 06:32:24 | 3501 |
| Klamath Falls | 06:17:29 | -21.1 | Dark | Down | 22.3 | 176.8 | Low | 06:02:29 - 06:32:29 | 3500 |
| Cedarville | 06:17:23 | -22.3 | Dark | Down | 23.1 | 178.4 | Low | 06:02:23 - 06:32:23 | 3473 |
| Fall River/Burney | 06:17:29 | -22.3 | Dark | Down | 23.5 | 177.2 | Low | 06:02:29 - 06:32:29 | 3449 |
| Susanville | 06:17:25 | -23.1 | Dark | Down | 24.2 | 177.9 | Low | 06:02:25 - 06:32:25 | 3422 |
| Gimple | 06:17:26 | -23.3 | Dark | Down | 24.4 | 177.7 | Low | 06:02:26 - 06:32:26 | 3409 |
| Greenville | 06:17:26 | -23.2 | Dark | Down | 24.4 | 177.6 | Low | 06:02:26 - 06:32:26 | 3409 |
| Quincy | 06:17:27 | -23.4 | Dark | Down | 24.6 | 177.6 | Low | 06:02:27 - 06:32:27 | 3400 |
| Portola | 06:17:25 | -23.7 | Dark | Down | 24.8 | 178.0 | Low | 06:02:25 - 06:32:25 | 3395 |
| Reno | 06:17:22 | -24.2 | Dark | Down | 25.1 | 178.7 | Low | 06:02:22 - 06:32:22 | 3383 |
| Carson City | 06:17:22 | -24.5 | Dark | Down | 25.4 | 178.7 | Low | 06:02:22 - 06:32:22 | 3366 |
| Niwot | 06:16:27 | -27.5 | Dark | Down | 23.4 | 192.9 | Low | 06:01:27 - 06:31:27 | 3358 |
| Yerington | 06:17:20 | -24.9 | Dark | Down | 25.6 | 179.3 | Low | 06:02:20 - 06:32:20 | 3357 |
| Gardnerville | 06:17:22 | -24.7 | Dark | Down | 25.7 | 178.7 | Low | 06:02:22 - 06:32:22 | 3354 |
| SwRI | 06:16:28 | -27.6 | Dark | Down | 23.5 | 192.8 | Low | 06:01:28 - 06:31:28 | 3353 |
| Hawthorne | 06:17:18 | -25.5 | Dark | Down | 26.1 | 179.8 | Low | 06:02:18 - 06:32:18 | 3335 |
| Tonopah | 06:17:12 | -26.4 | Dark | Down | 26.6 | 181.3 | Low | 06:02:12 - 06:32:12 | 3312 |
| Lee Vining | 06:17:20 | -25.8 | Dark | Down | 26.7 | 179.4 | Low | 06:02:20 - 06:32:20 | 3307 |
| Bishop | 06:17:17 | -26.6 | Dark | Down | 27.3 | 180.1 | Low | 06:02:17 - 06:32:17 | 3277 |
| Beatty | 06:17:10 | -27.6 | Dark | Down | 27.7 | 181.7 | Low | 06:02:10 - 06:32:10 | 3252 |
| Indian Springs | 06:17:06 | -28.2 | Dark | Down | 28.0 | 182.8 | Low | 06:02:06 - 06:32:06 | 3234 |
| Henderson | 06:17:03 | -28.9 | Dark | Down | 28.5 | 183.5 | Low | 06:02:03 - 06:32:03 | 3204 |
| Searchlight/Boulder City | 06:17:03 | -29.5 | Dark | Down | 29.1 | 183.6 | Low | 06:02:03 - 06:32:03 | 3173 |
| Patrick | 06:16:59 | -29.9 | Dark | Down | 29.1 | 184.7 | Low | 06:01:59 - 06:31:59 | 3168 |
| CPSLO | 06:17:26 | -27.6 | Dark | Down | 29.3 | 177.8 | Low | 06:02:26 - 06:32:26 | 3166 |
| Kingman/Dolan Springs | 06:16:59 | -30.0 | Dark | Down | 29.3 | 184.5 | Low | 06:01:59 - 06:31:59 | 3156 |
| Laughlin/Bullhead City | 06:17:01 | -29.9 | Dark | Down | 29.3 | 184.0 | Low | 06:02:01 - 06:32:01 | 3156 |
| DCO | 06:16:56 | -30.4 | Dark | Down | 29.3 | 185.4 | Low | 06:01:56 - 06:31:56 | 3149 |
| Mohave Valley | 06:17:01 | -30.1 | Dark | Down | 29.6 | 184.0 | Low | 06:02:01 - 06:32:01 | 3140 |
| Lake Havasu City | 06:17:00 | -30.6 | Dark | Down | 30.0 | 184.3 | Up | 06:02:00 - 06:32:00 | 3118 |
| Wildwood | 06:17:18 | -29.4 | Dark | Down | 30.5 | 179.9 | Up | 06:02:18 - 06:32:18 | 3101 |
| Parker | 06:17:00 | -30.9 | Dark | Down | 30.4 | 184.3 | Up | 06:02:00 - 06:32:00 | 3098 |
| Idyllwild | 06:17:10 | -30.4 | Dark | Down | 30.9 | 181.8 | Up | 06:02:10 - 06:32:10 | 3081 |
| Blythe | 06:17:01 | -31.3 | Dark | Down | 30.9 | 184.0 | Up | 06:02:01 - 06:32:01 | 3069 |
| George/Scottsdale | 06:16:50 | -32.1 | Dark | Down | 30.6 | 186.8 | Up | 06:01:50 - 06:31:50 | 3066 |
| Calipatria | 06:17:05 | -31.4 | Dark | Down | 31.4 | 183.1 | Up | 06:02:05 - 06:32:05 | 3042 |
| Yuma | 06:17:01 | -32.1 | Dark | Down | 31.8 | 184.0 | Up | 06:02:01 - 06:32:01 | 3015 |
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 05JJ186, (2020/07/16 06:17UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 20.73 168 Nunki 18:55:15.9 -26:17:49 2.0 12.11 138 PPM 267497 17:54:54.1 -24:53:13 6.4 1.59 151 PPM 267715 18:02:19.8 -24:52:10 8.3 0.53 150 PPM 267703 18:01:46.9 -25:37:36 9.5 0.25 150 05JJ186 18:01:35.8 -25:22:33 16.1 150 Positions are for J2000
Event circumstances last updated at 2020/06/21 05:08:03 UT
Marc W. Buie, Southwest Research Institute