Event between 09YT26 and star GA1160:02831246 with event index number of 1558479
Geocentric closest approach at 2020/01/28 12:42:36 UTC
J2000 position of star is 07:27:16.8 +26:26:47
Equinox of date position of star is 07:28:28.8 +26:24:21
Stellar brightness G=15.5,
use SENSEUP=128
Star is 121 degrees from the moon.
Moon is 12% illuminated.
TNO apparent brightness V=21.7
[RECON map]
TNO is 32.4 AU from the Sun
and 31.5 AU from the Earth.
The TNO is moving 23.2
km/sec on the sky relative to the star, or,
3.7 arcsec/hr.
The 1-sigma error in the time of the event is 82 seconds.
The 1-sigma cross-track error in the shadow position is
1175 km.
The sky-plane scale is
22830.3 km/arcsec.
The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 12.4 sec chord
Diameter=117.7 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is 3:2E
Star training set for 09YT26, (2020/01/28 12:43UT) Object RA Dec mag sep mel Pollux 07:46:32.5 +27:58:34 1.1 4.31 125 59 Gem 07:25:48.2 +27:35:50 6.0 1.34 120 PPM 097535 07:29:14.9 +26:11:07 7.5 0.27 121 09YT26 07:28:30.9 +26:24:16 15.5 121 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 14.9 km
RECON observability=0.6 and success probability=1.8%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 12:40:08 | -28.3 | Dark | Down | 22.3 | 285.0 | Low | 12:32:48 - 12:47:28 | 3810 |
| Penticton | 12:40:08 | -28.5 | Dark | Down | 22.4 | 285.1 | Low | 12:32:48 - 12:47:28 | 3785 |
| Summerland | 12:40:07 | -28.5 | Dark | Down | 22.4 | 285.0 | Low | 12:32:47 - 12:47:27 | 3785 |
| Okanagan Falls | 12:40:06 | -28.5 | Dark | Down | 22.3 | 285.1 | Low | 12:32:46 - 12:47:26 | 3774 |
| Oliver | 12:40:05 | -28.5 | Dark | Down | 22.3 | 285.2 | Low | 12:32:45 - 12:47:25 | 3766 |
| Anarchist Mountain Observatory | 12:40:05 | -28.4 | Dark | Down | 22.1 | 285.4 | Low | 12:32:45 - 12:47:25 | 3763 |
| Oroville | 12:40:04 | -28.4 | Dark | Down | 22.1 | 285.4 | Low | 12:32:44 - 12:47:24 | 3757 |
| Tonasket | 12:40:04 | -28.5 | Dark | Down | 22.1 | 285.5 | Low | 12:32:44 - 12:47:24 | 3744 |
| SwRI | 12:39:36 | -18.0 | Dark | Down | 9.6 | 296.6 | Really Low | 12:32:16 - 12:46:56 | 3734 |
| Okanogan | 12:40:02 | -28.6 | Dark | Down | 22.1 | 285.5 | Low | 12:32:42 - 12:47:22 | 3720 |
| Brewster | 12:40:01 | -28.7 | Dark | Down | 22.1 | 285.5 | Low | 12:32:41 - 12:47:21 | 3698 |
| Manson/Chelan | 12:40:01 | -29.0 | Dark | Down | 22.3 | 285.3 | Low | 12:32:41 - 12:47:21 | 3674 |
| Wenatchee | 12:39:59 | -29.2 | Dark | Down | 22.3 | 285.4 | Low | 12:32:39 - 12:47:19 | 3641 |
| Pasco | 12:39:54 | -28.4 | Dark | Down | 21.2 | 286.6 | Low | 12:32:34 - 12:47:14 | 3616 |
| Ellensburg | 12:39:57 | -29.3 | Dark | Down | 22.3 | 285.4 | Low | 12:32:37 - 12:47:17 | 3610 |
| PNWRO | 12:39:53 | -28.3 | Dark | Down | 21.0 | 286.8 | Low | 12:32:33 - 12:47:13 | 3609 |
| George/Umatilla | 12:39:52 | -28.6 | Dark | Down | 21.3 | 286.6 | Low | 12:32:32 - 12:47:12 | 3588 |
| Yakima | 12:39:55 | -29.4 | Dark | Down | 22.3 | 285.5 | Low | 12:32:35 - 12:47:15 | 3585 |
| Toppenish/White Swan | 12:39:54 | -29.3 | Dark | Down | 22.1 | 285.7 | Low | 12:32:34 - 12:47:14 | 3579 |
| Goldendale | 12:39:52 | -29.6 | Dark | Down | 22.2 | 285.7 | Low | 12:32:32 - 12:47:12 | 3531 |
| The Dalles | 12:39:51 | -29.9 | Dark | Down | 22.4 | 285.5 | Low | 12:32:31 - 12:47:11 | 3504 |
| Maupin | 12:39:50 | -29.9 | Dark | Down | 22.2 | 285.7 | Low | 12:32:30 - 12:47:10 | 3483 |
| Madras/Culver | 12:39:48 | -29.9 | Dark | Down | 22.1 | 285.9 | Low | 12:32:28 - 12:47:08 | 3448 |
| Redmond | 12:39:46 | -30.0 | Dark | Down | 22.1 | 286.0 | Low | 12:32:26 - 12:47:06 | 3424 |
| Sisters | 12:39:47 | -30.3 | Dark | Down | 22.3 | 285.8 | Low | 12:32:27 - 12:47:07 | 3410 |
| Bend | 12:39:45 | -30.1 | Dark | Down | 22.1 | 286.0 | Low | 12:32:25 - 12:47:05 | 3405 |
| Oregon Observatory | 12:39:46 | -30.2 | Dark | Down | 22.1 | 286.0 | Low | 12:32:26 - 12:47:06 | 3389 |
| La Pine/Gilchrist | 12:39:44 | -30.3 | Dark | Down | 22.1 | 286.0 | Low | 12:32:24 - 12:47:04 | 3374 |
| North Lake | 12:39:42 | -29.9 | Dark | Down | 21.6 | 286.6 | Low | 12:32:22 - 12:47:02 | 3369 |
| Paisley | 12:39:41 | -29.6 | Dark | Down | 21.2 | 287.0 | Low | 12:32:21 - 12:47:01 | 3347 |
| Lakeview | 12:39:39 | -29.5 | Dark | Down | 20.9 | 287.3 | Low | 12:32:19 - 12:46:59 | 3321 |
| Chiloquin | 12:39:40 | -30.6 | Dark | Down | 22.1 | 286.3 | Low | 12:32:20 - 12:47:00 | 3290 |
| Cedarville | 12:39:36 | -29.4 | Dark | Down | 20.6 | 287.6 | Low | 12:32:16 - 12:46:56 | 3285 |
| Klamath Falls | 12:39:39 | -30.6 | Dark | Down | 21.9 | 286.4 | Low | 12:32:19 - 12:46:59 | 3270 |
| Tulelake | 12:39:38 | -30.4 | Dark | Down | 21.6 | 286.7 | Low | 12:32:18 - 12:46:58 | 3264 |
| Fall River/Burney | 12:39:35 | -30.3 | Dark | Down | 21.3 | 287.1 | Low | 12:32:15 - 12:46:55 | 3207 |
| Susanville | 12:39:32 | -29.8 | Dark | Down | 20.6 | 287.7 | Low | 12:32:12 - 12:46:52 | 3193 |
| Tonopah | 12:39:24 | -27.1 | Dark | Down | 17.4 | 290.4 | Really Low | 12:32:04 - 12:46:44 | 3167 |
| Reno | 12:39:29 | -29.2 | Dark | Down | 19.7 | 288.5 | Really Low | 12:32:09 - 12:46:49 | 3167 |
| Gimple | 12:39:31 | -30.0 | Dark | Down | 20.7 | 287.7 | Low | 12:32:11 - 12:46:51 | 3166 |
| Greenville | 12:39:31 | -30.0 | Dark | Down | 20.8 | 287.7 | Low | 12:32:11 - 12:46:51 | 3163 |
| Portola | 12:39:30 | -29.7 | Dark | Down | 20.3 | 288.0 | Low | 12:32:10 - 12:46:50 | 3159 |
| Yerington | 12:39:27 | -28.7 | Dark | Down | 19.1 | 289.0 | Really Low | 12:32:07 - 12:46:47 | 3155 |
| Quincy | 12:39:31 | -30.0 | Dark | Down | 20.7 | 287.7 | Low | 12:32:11 - 12:46:51 | 3150 |
| Hawthorne | 12:39:25 | -28.2 | Dark | Down | 18.6 | 289.5 | Really Low | 12:32:05 - 12:46:45 | 3144 |
| Carson City | 12:39:28 | -29.2 | Dark | Down | 19.6 | 288.6 | Really Low | 12:32:08 - 12:46:48 | 3143 |
| Gardnerville | 12:39:27 | -29.1 | Dark | Down | 19.5 | 288.7 | Really Low | 12:32:07 - 12:46:47 | 3128 |
| Indian Springs | 12:39:19 | -25.8 | Dark | Down | 15.7 | 291.6 | Really Low | 12:31:59 - 12:46:39 | 3125 |
| Patrick | 12:39:15 | -24.3 | Dark | Down | 13.9 | 292.8 | Really Low | 12:31:55 - 12:46:35 | 3116 |
| Henderson | 12:39:18 | -25.2 | Dark | Down | 15.0 | 292.1 | Really Low | 12:31:58 - 12:46:38 | 3116 |
| Beatty | 12:39:20 | -26.7 | Dark | Down | 16.6 | 290.9 | Really Low | 12:32:00 - 12:46:40 | 3105 |
| Kingman/Dolan Springs | 12:39:15 | -24.4 | Dark | Down | 14.0 | 292.7 | Really Low | 12:31:55 - 12:46:35 | 3093 |
| Lee Vining | 12:39:23 | -28.6 | Dark | Down | 18.7 | 289.4 | Really Low | 12:32:03 - 12:46:43 | 3085 |
| Searchlight/Boulder City | 12:39:15 | -25.1 | Dark | Down | 14.7 | 292.2 | Really Low | 12:31:55 - 12:46:35 | 3078 |
| Bishop | 12:39:21 | -28.0 | Dark | Down | 18.0 | 289.9 | Really Low | 12:32:01 - 12:46:41 | 3073 |
| Laughlin/Bullhead City | 12:39:15 | -24.8 | Dark | Down | 14.4 | 292.5 | Really Low | 12:31:55 - 12:46:35 | 3071 |
| Mohave Valley | 12:39:14 | -24.8 | Dark | Down | 14.2 | 292.5 | Really Low | 12:31:54 - 12:46:34 | 3052 |
| Lake Havasu City | 12:39:13 | -24.6 | Dark | Down | 13.9 | 292.7 | Really Low | 12:31:53 - 12:46:33 | 3034 |
| Lone Pine | 12:39:19 | -27.7 | Dark | Down | 17.5 | 290.3 | Really Low | 12:31:59 - 12:46:39 | 3032 |
| Parker | 12:39:12 | -24.5 | Dark | Down | 13.8 | 292.8 | Really Low | 12:31:52 - 12:46:32 | 3010 |
| Blythe | 12:39:10 | -24.7 | Dark | Down | 13.8 | 292.8 | Really Low | 12:31:50 - 12:46:30 | 2960 |
| Yuma | 12:39:07 | -24.6 | Dark | Down | 13.5 | 293.0 | Really Low | 12:31:47 - 12:46:27 | 2891 |
| Calipatria | 12:39:08 | -25.4 | Dark | Down | 14.3 | 292.5 | Really Low | 12:31:48 - 12:46:28 | 2885 |
| Idyllwild | 12:39:10 | -26.5 | Dark | Down | 15.5 | 291.8 | Really Low | 12:31:50 - 12:46:30 | 2881 |
| CPSLO | 12:39:14 | -29.8 | Dark | Down | 19.0 | 289.4 | Really Low | 12:31:54 - 12:46:34 | 2834 |
| Wildwood | 12:39:10 | -28.1 | Dark | Down | 17.1 | 290.8 | Really Low | 12:31:50 - 12:46:30 | 2830 |
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 09YT26, (2020/01/28 12:43UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 4.31 125 59 Gem 07:24:33.4 +27:38:16 6.0 1.34 120 PPM 097535 07:28:00.9 +26:13:39 7.5 0.27 121 09YT26 07:27:16.8 +26:26:47 15.5 121 Positions are for J2000
Event circumstances last updated at 2019/07/02 02:27:38 UT
Marc W. Buie, Southwest Research Institute