Event between (386968) 12BR61 and star GA0680:06475707 with event index number of 2211933
Geocentric closest approach at 2022/01/21 13:02:20 UTC
J2000 position of star is 15:48:34.3 -21:03:53
Equinox of date position of star is 15:49:50.7 -21:07:49
Stellar brightness G=14.0,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 78 degrees from the moon.
Moon is 88% illuminated.
TNO apparent brightness V=21.1
[RECON map]
TNO is 13.3 AU from the Sun
and 13.8 AU from the Earth.
The TNO is moving 23.6
km/sec on the sky relative to the star, or,
8.5 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
515 km.
The sky-plane scale is
9997.8 km/arcsec.
The TNO has an absolute magnitude Hv=9.4
Diameter=81.3 km assuming a 5% albedo -- 3.4 sec chord
Diameter=33.2 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
Star training set for 386968, (2022/01/21 13:02UT) Object RA Dec mag sep mel Antares 16:30:45.8 -26:28:45 0.9 10.77 88 7Del Sco 16:01:38.5 -22:40:58 2.3 3.14 81 45Lam Lib 15:54:37.1 -20:13:53 5.0 1.43 78 PPM 264688 15:48:48.7 -21:18:02 8.1 0.30 77 PPM 264722 15:50:04.0 -21:17:07 8.7 0.16 78 PPM 264706 15:49:29.4 -21:00:09 10.3 0.15 77 386968 15:49:51.7 -21:07:52 14.0 78 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 14.8 km
RECON observability=0.3 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) |
| Clarence Fulton | 12:59:30 | -26.1 | Dark | Up | 10.1 | 141.8 | Really Low | 12:56:49 - 13:02:11 | 3585 |
| Kelowna | 12:59:29 | -26.2 | Dark | Up | 10.4 | 141.6 | Really Low | 12:56:48 - 13:02:10 | 3558 |
| Peachland | 12:59:28 | -26.4 | Dark | Up | 10.3 | 141.4 | Really Low | 12:56:47 - 13:02:09 | 3543 |
| Summerland | 12:59:28 | -26.3 | Dark | Up | 10.5 | 141.4 | Really Low | 12:56:47 - 13:02:09 | 3537 |
| Penticton | 12:59:29 | -26.2 | Dark | Up | 10.6 | 141.5 | Really Low | 12:56:48 - 13:02:10 | 3537 |
| Oliver | 12:59:28 | -26.2 | Dark | Up | 10.9 | 141.5 | Really Low | 12:56:47 - 13:02:09 | 3517 |
| Anarchist Mountain Observatory | 12:59:28 | -26.1 | Dark | Up | 11.1 | 141.6 | Really Low | 12:56:47 - 13:02:09 | 3513 |
| Tonasket | 12:59:27 | -26.1 | Dark | Up | 11.3 | 141.5 | Really Low | 12:56:46 - 13:02:08 | 3493 |
| Okanogan | 12:59:26 | -26.2 | Dark | Up | 11.5 | 141.3 | Really Low | 12:56:45 - 13:02:07 | 3468 |
| Brewster | 12:59:25 | -26.4 | Dark | Up | 11.6 | 141.1 | Really Low | 12:56:44 - 13:02:06 | 3446 |
| Dunrhomin | 12:59:52 | -14.9 | AT | Up | 23.9 | 152.9 | Low | 12:57:11 - 13:02:33 | 3442 |
| Manson/Chelan | 12:59:23 | -26.6 | Dark | Up | 11.6 | 140.8 | Really Low | 12:56:42 - 13:02:04 | 3422 |
| Wenatchee | 12:59:23 | -26.7 | Dark | Up | 11.9 | 140.6 | Really Low | 12:56:42 - 13:02:04 | 3388 |
| Victoria | 12:59:19 | -28.8 | Dark | Up | 9.7 | 138.1 | Really Low | 12:56:38 - 13:02:00 | 3358 |
| Ellensburg | 12:59:21 | -26.9 | Dark | Up | 12.1 | 140.3 | Really Low | 12:56:40 - 13:02:02 | 3356 |
| Pasco | 12:59:23 | -25.9 | Dark | Up | 13.3 | 141.4 | Really Low | 12:56:42 - 13:02:04 | 3356 |
| PNWRO | 12:59:24 | -25.7 | Dark | Up | 13.6 | 141.6 | Really Low | 12:56:43 - 13:02:05 | 3349 |
| Yakima | 12:59:21 | -26.9 | Dark | Up | 12.4 | 140.3 | Really Low | 12:56:40 - 13:02:02 | 3331 |
| Toppenish/White Swan | 12:59:21 | -26.8 | Dark | Up | 12.7 | 140.4 | Really Low | 12:56:40 - 13:02:02 | 3323 |
| Goldendale | 12:59:19 | -27.0 | Dark | Up | 12.9 | 139.9 | Really Low | 12:56:38 - 13:02:00 | 3274 |
| The Dalles | 12:59:17 | -27.3 | Dark | Up | 12.9 | 139.6 | Really Low | 12:56:36 - 13:01:58 | 3248 |
| Maupin | 12:59:17 | -27.2 | Dark | Up | 13.3 | 139.6 | Really Low | 12:56:36 - 13:01:58 | 3225 |
| Redmond | 12:59:15 | -27.3 | Dark | Up | 13.9 | 139.4 | Really Low | 12:56:34 - 13:01:56 | 3164 |
| Sisters | 12:59:14 | -27.6 | Dark | Up | 13.7 | 139.0 | Really Low | 12:56:33 - 13:01:55 | 3152 |
| Bend | 12:59:15 | -27.4 | Dark | Up | 14.0 | 139.2 | Really Low | 12:56:34 - 13:01:56 | 3145 |
| Oregon Observatory | 12:59:14 | -27.5 | Dark | Up | 14.1 | 139.1 | Really Low | 12:56:33 - 13:01:55 | 3129 |
| La Pine/Gilchrist | 12:59:14 | -27.5 | Dark | Up | 14.2 | 139.0 | Really Low | 12:56:33 - 13:01:55 | 3114 |
| North Lake | 12:59:15 | -27.0 | Dark | Up | 14.8 | 139.4 | Really Low | 12:56:34 - 13:01:56 | 3106 |
| Paisley | 12:59:14 | -26.7 | Dark | Up | 15.4 | 139.6 | Really Low | 12:56:33 - 13:01:55 | 3081 |
| Lakeview | 12:59:14 | -26.6 | Dark | Up | 15.9 | 139.7 | Really Low | 12:56:33 - 13:01:55 | 3054 |
| Chiloquin | 12:59:11 | -27.7 | Dark | Up | 14.9 | 138.5 | Really Low | 12:56:30 - 13:01:52 | 3027 |
| Cedarville | 12:59:14 | -26.4 | Dark | Up | 16.5 | 139.7 | Really Low | 12:56:33 - 13:01:55 | 3015 |
| Klamath Falls | 12:59:11 | -27.6 | Dark | Up | 15.2 | 138.5 | Really Low | 12:56:30 - 13:01:52 | 3006 |
| Fall River/Burney | 12:59:10 | -27.3 | Dark | Up | 16.2 | 138.6 | Really Low | 12:56:29 - 13:01:51 | 2938 |
| Susanville | 12:59:11 | -26.7 | Dark | Up | 17.1 | 139.1 | Really Low | 12:56:30 - 13:01:52 | 2921 |
| Gimple | 12:59:10 | -26.8 | Dark | Up | 17.2 | 138.9 | Really Low | 12:56:29 - 13:01:51 | 2894 |
| Greenville | 12:59:10 | -26.9 | Dark | Up | 17.2 | 138.8 | Really Low | 12:56:29 - 13:01:51 | 2891 |
| Reno | 12:59:12 | -26.0 | Dark | Up | 18.2 | 139.6 | Really Low | 12:56:31 - 13:01:53 | 2890 |
| Portola | 12:59:11 | -26.5 | Dark | Up | 17.6 | 139.1 | Really Low | 12:56:30 - 13:01:52 | 2885 |
| Tonopah | 12:59:17 | -23.8 | Dark | Up | 20.6 | 141.5 | Low | 12:56:36 - 13:01:58 | 2879 |
| Quincy | 12:59:10 | -26.9 | Dark | Up | 17.3 | 138.7 | Really Low | 12:56:29 - 13:01:51 | 2877 |
| Yerington | 12:59:13 | -25.4 | Dark | Up | 18.9 | 140.0 | Really Low | 12:56:32 - 13:01:54 | 2874 |
| Carson City | 12:59:11 | -25.9 | Dark | Up | 18.5 | 139.5 | Really Low | 12:56:30 - 13:01:52 | 2865 |
| Hawthorne | 12:59:13 | -25.0 | Dark | Up | 19.5 | 140.4 | Really Low | 12:56:32 - 13:01:54 | 2861 |
| Gardnerville | 12:59:11 | -25.9 | Dark | Up | 18.7 | 139.5 | Really Low | 12:56:30 - 13:01:52 | 2850 |
| Indian Springs | 12:59:19 | -22.4 | Dark | Up | 22.5 | 142.4 | Low | 12:56:38 - 13:02:00 | 2828 |
| Henderson | 12:59:21 | -21.7 | Dark | Up | 23.3 | 142.9 | Low | 12:56:40 - 13:02:02 | 2815 |
| Beatty | 12:59:16 | -23.3 | Dark | Up | 21.8 | 141.6 | Low | 12:56:35 - 13:01:57 | 2812 |
| Patrick | 12:59:23 | -20.7 | Dark | Up | 24.4 | 143.7 | Low | 12:56:42 - 13:02:04 | 2811 |
| Lee Vining | 12:59:11 | -25.3 | Dark | Up | 19.7 | 139.8 | Really Low | 12:56:30 - 13:01:52 | 2803 |
| Kingman/Dolan Springs | 12:59:22 | -20.8 | Dark | Up | 24.5 | 143.5 | Low | 12:56:41 - 13:02:03 | 2788 |
| Bishop | 12:59:13 | -24.7 | Dark | Up | 20.6 | 140.3 | Low | 12:56:32 - 13:01:54 | 2786 |
| Laughlin/Bullhead City | 12:59:21 | -21.3 | Dark | Up | 24.2 | 143.0 | Low | 12:56:40 - 13:02:02 | 2766 |
| George/Scottsdale | 12:59:27 | -18.8 | Dark | Up | 26.7 | 145.1 | Low | 12:56:46 - 13:02:08 | 2761 |
| Mohave Valley | 12:59:21 | -21.2 | Dark | Up | 24.4 | 143.0 | Low | 12:56:40 - 13:02:02 | 2747 |
| Lake Havasu City | 12:59:21 | -20.9 | Dark | Up | 24.9 | 143.1 | Low | 12:56:40 - 13:02:02 | 2726 |
| Parker | 12:59:21 | -20.8 | Dark | Up | 25.2 | 143.0 | Low | 12:56:40 - 13:02:02 | 2701 |
| Blythe | 12:59:19 | -21.0 | Dark | Up | 25.4 | 142.6 | Low | 12:56:38 - 13:02:00 | 2651 |
| Idyllwild | 12:59:14 | -22.8 | Dark | Up | 24.2 | 140.8 | Low | 12:56:33 - 13:01:55 | 2579 |
| Yuma | 12:59:18 | -20.9 | Dark | Up | 26.1 | 142.3 | Low | 12:56:37 - 13:01:59 | 2579 |
| Calipatria | 12:59:17 | -21.7 | Dark | Up | 25.3 | 141.6 | Low | 12:56:36 - 13:01:58 | 2577 |
| CPSLO | 12:59:04 | -26.3 | Dark | Up | 20.9 | 137.9 | Low | 12:56:23 - 13:01:45 | 2546 |
| Wildwood | 12:59:09 | -24.4 | Dark | Up | 22.9 | 139.3 | Low | 12:56:28 - 13:01:50 | 2533 |
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 386968, (2022/01/21 13:02UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 10.77 88 7Del Sco 16:00:20.0 -22:37:18 2.3 3.14 81 45Lam Lib 15:53:20.0 -20:10:02 5.0 1.43 78 PPM 264688 15:47:31.3 -21:14:01 8.1 0.30 77 PPM 264722 15:48:46.6 -21:13:08 8.7 0.16 78 PPM 264706 15:48:12.1 -20:56:10 10.3 0.15 77 386968 15:48:34.3 -21:03:53 14.0 78 Positions are for J2000
Event circumstances last updated at 2021/10/10 01:02:31 UT
Marc W. Buie, Southwest Research Institute