Event between 11UJ413 and star GA0980:01280357 with event index number of 2129052
Geocentric closest approach at 2021/12/13 03:55:17 UTC
J2000 position of star is 06:04:32.1 +08:36:11
Equinox of date position of star is 06:05:43.9 +08:36:01
Stellar brightness G=14.3,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 75 degrees from the moon.
Moon is 71% illuminated.
TNO apparent brightness V=22.7
[RECON map]
TNO is 38.9 AU from the Sun
and 38.0 AU from the Earth.
The TNO is moving 24.2
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 140 seconds.
The 1-sigma cross-track error in the shadow position is
1477 km.
The sky-plane scale is
27539.9 km/arcsec.
The TNO has an absolute magnitude Hv=6.8
Diameter=261.8 km assuming a 5% albedo -- 10.8 sec chord
Diameter=106.9 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is SCATNEAR
Star training set for 11UJ413, (2021/12/13 03:55UT) Object RA Dec mag sep mel Betelgeuse 05:56:21.6 +07:24:34 0.4 2.61 73 Bellatrix 05:26:18.6 +06:22:04 1.6 10.02 65 PPM 121823 06:04:38.4 +11:40:43 6.0 3.09 75 PPM 149829 06:04:44.2 +08:35:13 8.0 0.25 75 11UJ413 06:05:44.0 +08:36:01 14.3 75 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 24.4 km
RECON observability=0.7 and success probability=13.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 03:57:54 | -36.9 | Dark | Up | 19.3 | 100.2 | Really Low | 03:45:45 - 04:10:03 | 3490 |
| Sleaford | 03:57:31 | -45.2 | Dark | Up | 27.5 | 113.1 | Low | 03:45:22 - 04:09:40 | 3461 |
| Kelowna | 03:57:55 | -37.6 | Dark | Up | 20.0 | 100.7 | Low | 03:45:46 - 04:10:04 | 3420 |
| Peachland | 03:57:57 | -37.4 | Dark | Up | 19.8 | 100.4 | Really Low | 03:45:48 - 04:10:06 | 3415 |
| Summerland | 03:57:57 | -37.5 | Dark | Up | 19.9 | 100.4 | Really Low | 03:45:48 - 04:10:06 | 3403 |
| Penticton | 03:57:57 | -37.6 | Dark | Up | 20.0 | 100.5 | Low | 03:45:48 - 04:10:06 | 3397 |
| Oliver | 03:57:58 | -37.6 | Dark | Up | 20.1 | 100.3 | Low | 03:45:49 - 04:10:07 | 3370 |
| Victoria | 03:58:04 | -35.2 | Dark | Up | 17.7 | 97.1 | Really Low | 03:45:55 - 04:10:13 | 3360 |
| Anarchist Mountain Observatory | 03:57:58 | -37.8 | Dark | Up | 20.2 | 100.4 | Low | 03:45:49 - 04:10:07 | 3355 |
| Tonasket | 03:57:59 | -37.8 | Dark | Up | 20.3 | 100.3 | Low | 03:45:50 - 04:10:08 | 3332 |
| Okanogan | 03:58:00 | -37.7 | Dark | Up | 20.2 | 100.0 | Low | 03:45:51 - 04:10:09 | 3308 |
| Brewster | 03:58:01 | -37.6 | Dark | Up | 20.1 | 99.8 | Low | 03:45:52 - 04:10:10 | 3289 |
| Manson/Chelan | 03:58:02 | -37.4 | Dark | Up | 19.9 | 99.4 | Really Low | 03:45:53 - 04:10:11 | 3276 |
| Wenatchee | 03:58:04 | -37.4 | Dark | Up | 19.9 | 99.1 | Really Low | 03:45:55 - 04:10:13 | 3241 |
| Ellensburg | 03:58:06 | -37.3 | Dark | Up | 19.8 | 98.8 | Really Low | 03:45:57 - 04:10:15 | 3211 |
| Yakima | 03:58:07 | -37.3 | Dark | Up | 19.9 | 98.7 | Really Low | 03:45:58 - 04:10:16 | 3179 |
| Toppenish/White Swan | 03:58:08 | -37.4 | Dark | Up | 20.0 | 98.7 | Low | 03:45:59 - 04:10:17 | 3160 |
| Pasco | 03:58:06 | -38.3 | Dark | Up | 20.9 | 99.6 | Low | 03:45:57 - 04:10:15 | 3136 |
| Goldendale | 03:58:10 | -37.2 | Dark | Up | 19.8 | 98.2 | Really Low | 03:46:01 - 04:10:19 | 3120 |
| PNWRO | 03:58:07 | -38.5 | Dark | Up | 21.1 | 99.7 | Low | 03:45:58 - 04:10:16 | 3114 |
| The Dalles | 03:58:11 | -36.9 | Dark | Up | 19.6 | 97.8 | Really Low | 03:46:02 - 04:10:20 | 3106 |
| Maupin | 03:58:12 | -37.0 | Dark | Up | 19.7 | 97.8 | Really Low | 03:46:03 - 04:10:21 | 3071 |
| Sisters | 03:58:16 | -36.8 | Dark | Up | 19.5 | 97.1 | Really Low | 03:46:07 - 04:10:25 | 3005 |
| Redmond | 03:58:15 | -37.0 | Dark | Up | 19.8 | 97.4 | Really Low | 03:46:06 - 04:10:24 | 2999 |
| Bend | 03:58:16 | -36.9 | Dark | Up | 19.7 | 97.2 | Really Low | 03:46:07 - 04:10:25 | 2983 |
| Oregon Observatory | 03:58:17 | -36.9 | Dark | Up | 19.7 | 97.1 | Really Low | 03:46:08 - 04:10:26 | 2970 |
| La Pine/Gilchrist | 03:58:17 | -36.8 | Dark | Up | 19.6 | 97.0 | Really Low | 03:46:08 - 04:10:26 | 2954 |
| North Lake | 03:58:18 | -37.3 | Dark | Up | 20.1 | 97.2 | Low | 03:46:09 - 04:10:27 | 2910 |
| Chiloquin | 03:58:21 | -36.6 | Dark | Up | 19.5 | 96.3 | Really Low | 03:46:12 - 04:10:30 | 2865 |
| Paisley | 03:58:19 | -37.6 | Dark | Up | 20.5 | 97.3 | Low | 03:46:10 - 04:10:28 | 2860 |
| Klamath Falls | 03:58:22 | -36.7 | Dark | Up | 19.6 | 96.3 | Really Low | 03:46:13 - 04:10:31 | 2835 |
| Lakeview | 03:58:20 | -37.7 | Dark | Up | 20.7 | 97.2 | Low | 03:46:11 - 04:10:29 | 2815 |
| Cedarville | 03:58:22 | -37.9 | Dark | Up | 20.9 | 97.1 | Low | 03:46:13 - 04:10:31 | 2756 |
| Fall River/Burney | 03:58:25 | -37.0 | Dark | Up | 20.0 | 96.1 | Low | 03:46:16 - 04:10:34 | 2729 |
| Susanville | 03:58:26 | -37.6 | Dark | Up | 20.7 | 96.4 | Low | 03:46:17 - 04:10:35 | 2666 |
| Greenville | 03:58:27 | -37.3 | Dark | Up | 20.5 | 96.1 | Low | 03:46:18 - 04:10:36 | 2645 |
| Gimple | 03:58:27 | -37.4 | Dark | Up | 20.5 | 96.1 | Low | 03:46:18 - 04:10:36 | 2644 |
| Quincy | 03:58:27 | -37.3 | Dark | Up | 20.5 | 96.0 | Low | 03:46:18 - 04:10:36 | 2627 |
| Portola | 03:58:27 | -37.7 | Dark | Up | 20.9 | 96.3 | Low | 03:46:18 - 04:10:36 | 2611 |
| Reno | 03:58:27 | -38.2 | Dark | Up | 21.4 | 96.6 | Low | 03:46:18 - 04:10:36 | 2579 |
| Carson City | 03:58:28 | -38.2 | Dark | Up | 21.5 | 96.5 | Low | 03:46:19 - 04:10:37 | 2547 |
| Gardnerville | 03:58:29 | -38.3 | Dark | Up | 21.5 | 96.4 | Low | 03:46:20 - 04:10:38 | 2525 |
| Yerington | 03:58:28 | -38.7 | Dark | Up | 22.0 | 96.9 | Low | 03:46:19 - 04:10:37 | 2522 |
| Dunrhomin | 03:58:01 | -49.2 | Dark | Up | 32.2 | 107.5 | Up | 03:45:52 - 04:10:10 | 2476 |
| Hawthorne | 03:58:28 | -39.1 | Dark | Up | 22.5 | 97.0 | Low | 03:46:19 - 04:10:37 | 2474 |
| Lee Vining | 03:58:30 | -38.7 | Dark | Up | 22.1 | 96.5 | Low | 03:46:21 - 04:10:39 | 2430 |
| Tonopah | 03:58:28 | -40.2 | Dark | Up | 23.6 | 97.8 | Low | 03:46:19 - 04:10:37 | 2415 |
| Bishop | 03:58:31 | -39.3 | Dark | Up | 22.8 | 96.7 | Low | 03:46:22 - 04:10:40 | 2366 |
| Beatty | 03:58:30 | -40.6 | Dark | Up | 24.1 | 97.6 | Low | 03:46:21 - 04:10:39 | 2304 |
| Indian Springs | 03:58:29 | -41.5 | Dark | Up | 25.0 | 98.1 | Low | 03:46:20 - 04:10:38 | 2261 |
| CPSLO | 03:58:39 | -37.4 | Dark | Up | 21.2 | 94.5 | Low | 03:46:30 - 04:10:48 | 2205 |
| Henderson | 03:58:29 | -42.0 | Dark | Up | 25.7 | 98.3 | Low | 03:46:20 - 04:10:38 | 2202 |
| Patrick | 03:58:29 | -42.9 | Dark | Up | 26.7 | 98.7 | Low | 03:46:20 - 04:10:38 | 2130 |
| Laughlin/Bullhead City | 03:58:30 | -42.4 | Dark | Up | 26.1 | 98.1 | Low | 03:46:21 - 04:10:39 | 2116 |
| Kingman/Dolan Springs | 03:58:30 | -42.8 | Dark | Up | 26.5 | 98.5 | Low | 03:46:21 - 04:10:39 | 2112 |
| Mohave Valley | 03:58:31 | -42.4 | Dark | Up | 26.2 | 98.0 | Low | 03:46:22 - 04:10:40 | 2090 |
| Wildwood | 03:58:40 | -39.1 | Dark | Up | 23.0 | 95.2 | Low | 03:46:31 - 04:10:49 | 2066 |
| Lake Havasu City | 03:58:32 | -42.6 | Dark | Up | 26.4 | 98.0 | Low | 03:46:23 - 04:10:41 | 2049 |
| Parker | 03:58:33 | -42.6 | Dark | Up | 26.5 | 97.8 | Low | 03:46:24 - 04:10:42 | 2016 |
| Idyllwild | 03:58:38 | -40.6 | Dark | Up | 24.6 | 96.2 | Low | 03:46:29 - 04:10:47 | 2008 |
| Blythe | 03:58:34 | -42.3 | Dark | Up | 26.3 | 97.4 | Low | 03:46:25 - 04:10:43 | 1970 |
| George/Scottsdale | 03:58:29 | -44.6 | Dark | Up | 28.6 | 99.1 | Low | 03:46:20 - 04:10:38 | 1945 |
| Calipatria | 03:58:37 | -41.5 | Dark | Up | 25.6 | 96.6 | Low | 03:46:28 - 04:10:46 | 1934 |
| Yuma | 03:58:36 | -42.3 | Dark | Up | 26.4 | 96.9 | Low | 03:46:27 - 04:10:45 | 1882 |
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 11UJ413, (2021/12/13 03:55UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 2.61 73 Bellatrix 05:25:07.8 +06:20:58 1.6 10.02 65 PPM 121823 06:03:24.8 +11:40:51 6.0 3.09 75 PPM 149829 06:03:32.3 +08:35:21 8.0 0.25 75 11UJ413 06:04:32.1 +08:36:11 14.3 75 Positions are for J2000
Event circumstances last updated at 2021/12/04 02:01:31 UT
Marc W. Buie, Southwest Research Institute