Event between 14UU228 and star GA1080:00312147 with event index number of 1976043
Geocentric closest approach at 2021/12/08 05:24:02 UTC
J2000 position of star is 02:59:35.2 +18:50:45
Equinox of date position of star is 03:00:49.8 +18:55:55
Stellar brightness G=13.0,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 97 degrees from the moon.
Moon is 21% illuminated.
TNO apparent brightness V=24.2
[RECON map]
TNO is 27.9 AU from the Sun
and 27.0 AU from the Earth.
The TNO is moving 20.2
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 177 seconds.
The 1-sigma cross-track error in the shadow position is
1708 km.
The sky-plane scale is
19588.8 km/arcsec.
The TNO has an absolute magnitude Hv=9.7
Diameter=68.6 km assuming a 5% albedo -- 3.4 sec chord
Diameter=28.0 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is 3:2E
Star training set for 14UU228, (2021/12/08 05:24UT) Object RA Dec mag sep mel Aldebaran 04:37:10.9 +16:33:06 0.8 23.05 118 Hamal 02:08:24.9 +23:33:55 2.0 13.05 88 46Rho3Ari 02:57:40.7 +18:06:34 5.6 1.11 96 PPM 118712 02:59:57.8 +18:24:41 8.5 0.56 97 PPM 118729 03:00:50.2 +18:49:58 9.3 0.10 97 14UU228 03:00:49.8 +18:55:55 13.0 98 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
5.1 sigma about the mid-time.
The median site spacing is 25.4 km
RECON observability=1.0 and success probability=19.2%
Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
Kamloops | 05:23:34 | -49.7 | Dark | Down | 57.7 | 167.2 | Up | 05:08:34 - 05:38:34 | 3273 |
Kelowna | 05:23:32 | -50.6 | Dark | Down | 58.6 | 168.5 | Up | 05:08:32 - 05:38:32 | 3180 |
Peachland | 05:23:34 | -50.5 | Dark | Down | 58.7 | 168.0 | Up | 05:08:34 - 05:38:34 | 3178 |
Victoria | 05:23:48 | -49.0 | Dark | Down | 59.2 | 161.0 | Up | 05:08:48 - 05:38:48 | 3167 |
Summerland | 05:23:34 | -50.7 | Dark | Down | 58.8 | 168.1 | Up | 05:08:34 - 05:38:34 | 3163 |
Penticton | 05:23:33 | -50.8 | Dark | Down | 58.9 | 168.3 | Up | 05:08:33 - 05:38:33 | 3154 |
Oliver | 05:23:34 | -50.9 | Dark | Down | 59.2 | 168.2 | Up | 05:08:34 - 05:38:34 | 3123 |
Anarchist Mountain Observatory | 05:23:34 | -51.1 | Dark | Down | 59.4 | 168.5 | Up | 05:08:34 - 05:38:34 | 3103 |
Sleaford | 05:22:45 | -55.7 | Dark | Down | 56.3 | 192.1 | Up | 05:07:45 - 05:37:45 | 3078 |
Tonasket | 05:23:35 | -51.2 | Dark | Down | 59.7 | 168.2 | Up | 05:08:35 - 05:38:35 | 3078 |
Okanogan | 05:23:36 | -51.3 | Dark | Down | 60.0 | 167.8 | Up | 05:08:36 - 05:38:36 | 3052 |
Brewster | 05:23:37 | -51.3 | Dark | Down | 60.3 | 167.4 | Up | 05:08:37 - 05:38:37 | 3033 |
Manson/Chelan | 05:23:39 | -51.2 | Dark | Down | 60.4 | 166.6 | Up | 05:08:39 - 05:38:39 | 3024 |
Wenatchee | 05:23:41 | -51.3 | Dark | Down | 60.9 | 166.1 | Up | 05:08:41 - 05:38:41 | 2986 |
Ellensburg | 05:23:42 | -51.4 | Dark | Down | 61.2 | 165.5 | Up | 05:08:42 - 05:38:42 | 2955 |
Yakima | 05:23:43 | -51.5 | Dark | Down | 61.6 | 165.3 | Up | 05:08:43 - 05:38:43 | 2919 |
Toppenish/White Swan | 05:23:43 | -51.7 | Dark | Down | 61.8 | 165.5 | Up | 05:08:43 - 05:38:43 | 2895 |
Goldendale | 05:23:45 | -51.7 | Dark | Down | 62.3 | 164.4 | Up | 05:08:45 - 05:38:45 | 2857 |
Pasco | 05:23:39 | -52.6 | Dark | Down | 62.2 | 168.0 | Up | 05:08:39 - 05:38:39 | 2850 |
The Dalles | 05:23:47 | -51.6 | Dark | Down | 62.5 | 163.6 | Up | 05:08:47 - 05:38:47 | 2847 |
PNWRO | 05:23:38 | -52.8 | Dark | Down | 62.4 | 168.3 | Up | 05:08:38 - 05:38:38 | 2821 |
Maupin | 05:23:48 | -51.8 | Dark | Down | 62.9 | 163.6 | Up | 05:08:48 - 05:38:48 | 2806 |
Sisters | 05:23:51 | -51.8 | Dark | Down | 63.6 | 162.1 | Up | 05:08:51 - 05:38:51 | 2740 |
Redmond | 05:23:50 | -52.1 | Dark | Down | 63.7 | 162.9 | Up | 05:08:50 - 05:38:50 | 2727 |
Bend | 05:23:51 | -52.1 | Dark | Down | 63.9 | 162.5 | Up | 05:08:51 - 05:38:51 | 2711 |
Oregon Observatory | 05:23:51 | -52.1 | Dark | Down | 64.0 | 162.1 | Up | 05:08:51 - 05:38:51 | 2699 |
La Pine/Gilchrist | 05:23:52 | -52.1 | Dark | Down | 64.2 | 161.8 | Up | 05:08:52 - 05:38:52 | 2682 |
North Lake | 05:23:51 | -52.6 | Dark | Down | 64.8 | 162.8 | Up | 05:08:51 - 05:38:51 | 2624 |
Chiloquin | 05:23:56 | -52.2 | Dark | Down | 65.2 | 160.3 | Up | 05:08:56 - 05:38:56 | 2590 |
Paisley | 05:23:51 | -53.1 | Dark | Down | 65.4 | 163.3 | Up | 05:08:51 - 05:38:51 | 2563 |
Klamath Falls | 05:23:56 | -52.4 | Dark | Down | 65.5 | 160.3 | Up | 05:08:56 - 05:38:56 | 2556 |
Lakeview | 05:23:51 | -53.4 | Dark | Down | 65.9 | 163.4 | Up | 05:08:51 - 05:38:51 | 2510 |
Cedarville | 05:23:52 | -53.8 | Dark | Down | 66.6 | 163.4 | Up | 05:08:52 - 05:38:52 | 2443 |
Fall River/Burney | 05:23:57 | -53.0 | Dark | Down | 66.7 | 160.2 | Up | 05:08:57 - 05:38:57 | 2434 |
Susanville | 05:23:56 | -53.8 | Dark | Down | 67.5 | 161.5 | Up | 05:08:56 - 05:38:56 | 2352 |
Greenville | 05:23:57 | -53.6 | Dark | Down | 67.7 | 160.6 | Up | 05:08:57 - 05:38:57 | 2335 |
Gimple | 05:23:57 | -53.7 | Dark | Down | 67.7 | 160.8 | Up | 05:08:57 - 05:38:57 | 2332 |
Quincy | 05:23:58 | -53.7 | Dark | Down | 67.9 | 160.4 | Up | 05:08:58 - 05:38:58 | 2315 |
Portola | 05:23:56 | -54.1 | Dark | Down | 68.1 | 161.5 | Up | 05:08:56 - 05:38:56 | 2289 |
Reno | 05:23:54 | -54.6 | Dark | Down | 68.5 | 162.9 | Up | 05:08:54 - 05:38:54 | 2244 |
Carson City | 05:23:55 | -54.8 | Dark | Down | 68.9 | 162.6 | Up | 05:08:55 - 05:38:55 | 2209 |
Gardnerville | 05:23:55 | -54.9 | Dark | Down | 69.1 | 162.6 | Up | 05:08:55 - 05:38:55 | 2184 |
Yerington | 05:23:53 | -55.3 | Dark | Down | 69.2 | 164.1 | Up | 05:08:53 - 05:38:53 | 2171 |
Hawthorne | 05:23:52 | -55.8 | Dark | Down | 69.8 | 165.2 | Up | 05:08:52 - 05:38:52 | 2110 |
Lee Vining | 05:23:55 | -55.6 | Dark | Down | 70.2 | 163.5 | Up | 05:08:55 - 05:38:55 | 2070 |
Tonopah | 05:23:46 | -57.0 | Dark | Down | 70.5 | 168.7 | Up | 05:08:46 - 05:38:46 | 2022 |
Bishop | 05:23:53 | -56.3 | Dark | Down | 70.9 | 165.0 | Up | 05:08:53 - 05:38:53 | 1990 |
Dunrhomin | 05:22:55 | -64.2 | Dark | Down | 67.6 | 199.8 | Up | 05:07:55 - 05:37:55 | 1920 |
Beatty | 05:23:47 | -57.7 | Dark | Down | 71.7 | 169.4 | Up | 05:08:47 - 05:38:47 | 1895 |
CPSLO | 05:24:06 | -55.1 | Dark | Down | 72.3 | 156.6 | Up | 05:09:06 - 05:39:06 | 1858 |
Indian Springs | 05:23:43 | -58.6 | Dark | Down | 72.1 | 172.4 | Up | 05:08:43 - 05:38:43 | 1830 |
Henderson | 05:23:41 | -59.3 | Dark | Down | 72.7 | 174.4 | Up | 05:08:41 - 05:38:41 | 1756 |
Wildwood | 05:24:00 | -56.9 | Dark | Down | 74.0 | 161.5 | Up | 05:09:00 - 05:39:00 | 1673 |
Patrick | 05:23:38 | -60.3 | Dark | Down | 73.4 | 177.8 | Up | 05:08:38 - 05:38:38 | 1660 |
Laughlin/Bullhead City | 05:23:41 | -59.8 | Dark | Down | 73.6 | 175.5 | Up | 05:08:41 - 05:38:41 | 1657 |
Kingman/Dolan Springs | 05:23:39 | -60.2 | Dark | Down | 73.6 | 177.2 | Up | 05:08:39 - 05:38:39 | 1644 |
Mohave Valley | 05:23:41 | -59.9 | Dark | Down | 73.9 | 175.4 | Up | 05:08:41 - 05:38:41 | 1629 |
Lake Havasu City | 05:23:41 | -60.2 | Dark | Down | 74.3 | 176.2 | Up | 05:08:41 - 05:38:41 | 1581 |
Idyllwild | 05:23:53 | -58.5 | Dark | Down | 74.8 | 167.5 | Up | 05:08:53 - 05:38:53 | 1578 |
Parker | 05:23:42 | -60.3 | Dark | Down | 74.7 | 176.2 | Up | 05:08:42 - 05:38:42 | 1545 |
Blythe | 05:23:44 | -60.2 | Dark | Down | 75.2 | 175.0 | Up | 05:08:44 - 05:38:44 | 1501 |
Calipatria | 05:23:49 | -59.6 | Dark | Down | 75.6 | 171.3 | Up | 05:08:49 - 05:38:49 | 1479 |
George/Scottsdale | 05:23:32 | -62.4 | Dark | Down | 75.1 | 184.9 | Up | 05:08:32 - 05:38:32 | 1430 |
Yuma | 05:23:46 | -60.4 | Dark | Down | 76.1 | 174.5 | Up | 05:08:46 - 05:38:46 | 1408 |
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 14UU228, (2021/12/08 05:24UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 23.05 118 Hamal 02:07:10.7 +23:27:41 2.0 13.05 88 46Rho3Ari 02:56:26.6 +18:01:19 5.6 1.11 96 PPM 118712 02:58:43.5 +18:19:29 8.5 0.56 97 PPM 118729 02:59:35.7 +18:44:47 9.3 0.10 97 14UU228 02:59:35.2 +18:50:45 13.0 97 Positions are for J2000
Event circumstances last updated at 2021/12/05 01:59:18 UT
Marc W. Buie, Southwest Research Institute