Event between (471335) 11OD16 and star GA0880:19268600 with event index number of 283879
Geocentric closest approach at 2020/08/20 08:58:20 UTC
J2000 position of star is 23:53:23.0 -01:59:10
Equinox of date position of star is 23:54:26.3 -01:52:18
Stellar brightness G=16.1,
use SENSEUP=128
Star is 167 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=23.0
[RECON map]
TNO is 19.6 AU from the Sun
and 18.7 AU from the Earth.
The TNO is moving 18.4
km/sec on the sky relative to the star, or,
4.9 arcsec/hr.
The 1-sigma error in the time of the event is 39 seconds.
The 1-sigma cross-track error in the shadow position is
695 km.
The sky-plane scale is
13564.9 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=114.8 km assuming a 5% albedo -- 3.3 sec chord
Diameter=46.9 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
Star training set for 471335, (2020/08/20 08:58UT) Object RA Dec mag sep mel Fomalhaut 22:58:47.2 -29:30:45 1.2 30.64 161 Algenib 00:14:18.1 +15:17:53 2.8 17.86 150 24 Psc 23:53:59.2 -03:02:27 6.2 1.18 168 PPM 208118 23:55:42.1 -01:49:53 7.6 0.32 167 PPM 208095 23:55:00.0 -02:06:18 9.5 0.27 167 PPM 208088 23:54:24.1 -02:02:25 10.1 0.17 167 471335 23:54:26.4 -01:52:16 16.1 167 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=1.0 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) |
Victoria | 08:57:28 | -28.6 | Dark | Down | 37.1 | 156.9 | Up | 08:53:42 - 09:01:13 | 6109 |
Clarence Fulton | 08:57:09 | -26.3 | Dark | Down | 36.4 | 162.3 | Up | 08:53:24 - 09:00:55 | 6075 |
Peachland | 08:57:12 | -26.9 | Dark | Down | 36.7 | 161.6 | Up | 08:53:27 - 09:00:58 | 6062 |
Kelowna | 08:57:11 | -26.7 | Dark | Down | 36.7 | 162.0 | Up | 08:53:25 - 09:00:56 | 6059 |
Summerland | 08:57:12 | -27.0 | Dark | Down | 36.9 | 161.7 | Up | 08:53:26 - 09:00:57 | 6052 |
Penticton | 08:57:12 | -27.0 | Dark | Down | 37.0 | 161.8 | Up | 08:53:27 - 09:00:58 | 6045 |
Oliver | 08:57:13 | -27.4 | Dark | Down | 37.3 | 161.7 | Up | 08:53:28 - 09:00:59 | 6026 |
Anarchist Mountain Observatory | 08:57:12 | -27.5 | Dark | Down | 37.5 | 161.9 | Up | 08:53:26 - 09:00:57 | 6011 |
Tonasket | 08:57:13 | -27.8 | Dark | Down | 37.8 | 161.8 | Up | 08:53:28 - 09:00:59 | 5996 |
Okanogan | 08:57:14 | -28.2 | Dark | Down | 38.1 | 161.5 | Up | 08:53:29 - 09:01:00 | 5983 |
Manson/Chelan | 08:57:18 | -28.7 | Dark | Down | 38.4 | 160.7 | Up | 08:53:32 - 09:01:03 | 5975 |
Brewster | 08:57:17 | -28.5 | Dark | Down | 38.3 | 161.2 | Up | 08:53:31 - 09:01:02 | 5974 |
Entiat | 08:57:19 | -28.9 | Dark | Down | 38.6 | 160.6 | Up | 08:53:34 - 09:01:05 | 5965 |
Wenatchee | 08:57:20 | -29.2 | Dark | Down | 38.8 | 160.4 | Up | 08:53:35 - 09:01:06 | 5954 |
Ellensburg | 08:57:21 | -29.6 | Dark | Down | 39.2 | 160.0 | Up | 08:53:36 - 09:01:07 | 5938 |
Yakima | 08:57:23 | -30.0 | Dark | Down | 39.6 | 159.9 | Up | 08:53:38 - 09:01:09 | 5916 |
Toppenish/White Swan | 08:57:24 | -30.2 | Dark | Down | 39.8 | 160.0 | Up | 08:53:38 - 09:01:09 | 5898 |
Goldendale | 08:57:27 | -30.8 | Dark | Down | 40.2 | 159.3 | Up | 08:53:41 - 09:01:12 | 5880 |
The Dalles | 08:57:29 | -31.1 | Dark | Down | 40.3 | 158.8 | Up | 08:53:43 - 09:01:14 | 5879 |
Maupin | 08:57:28 | -31.5 | Dark | Down | 40.8 | 158.8 | Up | 08:53:43 - 09:01:14 | 5852 |
Pasco | 08:57:19 | -30.1 | Dark | Down | 40.2 | 161.6 | Up | 08:53:34 - 09:01:05 | 5849 |
PNWRO | 08:57:19 | -30.3 | Dark | Down | 40.5 | 161.8 | Up | 08:53:34 - 09:01:05 | 5828 |
Sisters | 08:57:33 | -32.4 | Dark | Down | 41.5 | 157.9 | Up | 08:53:48 - 09:01:19 | 5817 |
Redmond | 08:57:33 | -32.4 | Dark | Down | 41.6 | 158.4 | Up | 08:53:47 - 09:01:18 | 5802 |
Bend | 08:57:34 | -32.6 | Dark | Down | 41.8 | 158.2 | Up | 08:53:48 - 09:01:19 | 5794 |
Oregon Observatory | 08:57:34 | -32.8 | Dark | Down | 41.9 | 157.9 | Up | 08:53:48 - 09:01:19 | 5788 |
La Pine/Gilchrist | 08:57:34 | -33.0 | Dark | Down | 42.1 | 157.8 | Up | 08:53:49 - 09:01:20 | 5778 |
North Lake | 08:57:34 | -33.3 | Dark | Down | 42.6 | 158.4 | Up | 08:53:48 - 09:01:19 | 5731 |
Klamath Falls | 08:57:40 | -34.5 | Dark | Down | 43.3 | 157.0 | Up | 08:53:55 - 09:01:26 | 5698 |
Paisley | 08:57:34 | -33.8 | Dark | Down | 43.2 | 158.7 | Up | 08:53:49 - 09:01:20 | 5685 |
Lakeview | 08:57:34 | -34.2 | Dark | Down | 43.8 | 158.8 | Up | 08:53:49 - 09:01:20 | 5647 |
Fall River/Burney | 08:57:42 | -35.5 | Dark | Down | 44.5 | 157.0 | Up | 08:53:57 - 09:01:28 | 5611 |
Cedarville | 08:57:36 | -34.8 | Dark | Down | 44.4 | 158.8 | Up | 08:53:50 - 09:01:21 | 5599 |
Susanville | 08:57:41 | -36.0 | Dark | Down | 45.3 | 157.8 | Up | 08:53:56 - 09:01:27 | 5544 |
Greenville | 08:57:44 | -36.3 | Dark | Down | 45.5 | 157.3 | Up | 08:53:58 - 09:01:29 | 5536 |
Gimple | 08:57:43 | -36.3 | Dark | Down | 45.5 | 157.4 | Up | 08:53:57 - 09:01:28 | 5533 |
Quincy | 08:57:44 | -36.5 | Dark | Down | 45.7 | 157.2 | Up | 08:53:59 - 09:01:30 | 5523 |
Portola | 08:57:43 | -36.5 | Dark | Down | 45.9 | 157.8 | Up | 08:53:57 - 09:01:28 | 5498 |
Reno | 08:57:40 | -36.7 | Dark | Down | 46.4 | 158.6 | Up | 08:53:55 - 09:01:26 | 5457 |
Carson City | 08:57:42 | -37.0 | Dark | Down | 46.7 | 158.5 | Up | 08:53:57 - 09:01:28 | 5432 |
Gardnerville | 08:57:43 | -37.2 | Dark | Down | 47.0 | 158.5 | Up | 08:53:57 - 09:01:28 | 5414 |
Yerington | 08:57:41 | -37.0 | Dark | Down | 47.1 | 159.3 | Up | 08:53:55 - 09:01:26 | 5395 |
Hawthorne | 08:57:39 | -37.3 | Dark | Down | 47.6 | 159.9 | Up | 08:53:54 - 09:01:25 | 5344 |
Lee Vining | 08:57:43 | -38.0 | Dark | Down | 48.0 | 159.0 | Up | 08:53:57 - 09:01:28 | 5324 |
Tonopah | 08:57:34 | -37.4 | Dark | Down | 48.4 | 161.7 | Up | 08:53:49 - 09:01:20 | 5259 |
Bishop | 08:57:42 | -38.4 | Dark | Down | 48.8 | 159.8 | Up | 08:53:56 - 09:01:27 | 5255 |
CPSLO | 08:57:57 | -40.9 | Dark | Down | 50.0 | 155.7 | Up | 08:54:11 - 09:01:42 | 5194 |
Beatty | 08:57:35 | -38.4 | Dark | Down | 49.7 | 162.0 | Up | 08:53:50 - 09:01:21 | 5160 |
Indian Springs | 08:57:32 | -38.4 | Dark | Down | 50.2 | 163.5 | Up | 08:53:47 - 09:01:18 | 5095 |
Henderson | 08:57:31 | -38.6 | Dark | Down | 50.9 | 164.4 | Up | 08:53:45 - 09:01:16 | 5029 |
Wildwood | 08:57:52 | -41.5 | Dark | Down | 51.8 | 158.1 | Up | 08:54:06 - 09:01:37 | 5026 |
Searchlight/Boulder City | 08:57:32 | -39.1 | Dark | Down | 51.5 | 164.3 | Up | 08:53:46 - 09:01:17 | 4984 |
Niwot | 08:56:41 | -31.5 | Dark | Down | 47.9 | 179.7 | Up | 08:52:55 - 09:00:26 | 4952 |
Laughlin/Bullhead City | 08:57:32 | -39.3 | Dark | Down | 51.8 | 164.7 | Up | 08:53:46 - 09:01:17 | 4948 |
SwRI | 08:56:40 | -31.6 | Dark | Down | 48.0 | 179.6 | Up | 08:52:54 - 09:00:25 | 4947 |
Patrick | 08:57:27 | -38.8 | Dark | Down | 51.7 | 165.9 | Up | 08:53:41 - 09:01:12 | 4939 |
Kingman/Dolan Springs | 08:57:29 | -39.1 | Dark | Down | 51.9 | 165.5 | Up | 08:53:44 - 09:01:15 | 4929 |
Mohave Valley | 08:57:32 | -39.5 | Dark | Down | 52.1 | 164.6 | Up | 08:53:47 - 09:01:18 | 4927 |
Idyllwild | 08:57:45 | -41.3 | Dark | Down | 52.7 | 160.9 | Up | 08:53:59 - 09:01:30 | 4926 |
DCO | 08:57:25 | -38.9 | Dark | Down | 52.2 | 166.9 | Up | 08:53:40 - 09:01:11 | 4888 |
Lake Havasu City | 08:57:32 | -39.8 | Dark | Down | 52.5 | 164.9 | Up | 08:53:46 - 09:01:17 | 4887 |
Parker | 08:57:33 | -40.1 | Dark | Down | 52.9 | 164.8 | Up | 08:53:48 - 09:01:19 | 4859 |
Blythe | 08:57:35 | -40.7 | Dark | Down | 53.3 | 164.2 | Up | 08:53:50 - 09:01:21 | 4831 |
Calipatria | 08:57:41 | -41.5 | Dark | Down | 53.6 | 162.5 | Up | 08:53:56 - 09:01:27 | 4831 |
Yuma | 08:57:37 | -41.6 | Dark | Down | 54.2 | 163.8 | Up | 08:53:52 - 09:01:23 | 4762 |
George/Scottsdale | 08:57:23 | -39.6 | Dark | Down | 53.7 | 168.6 | Up | 08:53:37 - 09:01:08 | 4729 |
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 471335, (2020/08/20 08:58UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:23 1.2 30.64 161 Algenib 00:13:14.2 +15:11:01 2.8 17.86 150 24 Psc 23:52:55.7 -03:09:21 6.2 1.18 168 PPM 208118 23:54:38.7 -01:56:47 7.6 0.32 167 PPM 208095 23:53:56.5 -02:13:12 9.5 0.27 167 PPM 208088 23:53:20.6 -02:09:19 10.1 0.17 167 471335 23:53:23.0 -01:59:10 16.1 167 Positions are for J2000
Event circumstances last updated at 2020/07/30 21:48:26 UT
Marc W. Buie, Southwest Research Institute