Event between (160427) 05RL43 and star GA1000:00968168 with event index number of 1786466
Geocentric closest approach at 2027/12/17 04:54:37 UTC
J2000 position of star is 05:43:40.9 +10:57:19
Equinox of date position of star is 05:44:50.3 +10:57:48
Stellar brightness G=13.2,
use SENSEUP=32
Star is 48 degrees from the moon.
Moon is 84% illuminated.
TNO apparent brightness V=23.9
[RECON map]
TNO is 24.9 AU from the Sun
and 23.9 AU from the Earth.
The TNO is moving 24.3
km/sec on the sky relative to the star, or,
5.0 arcsec/hr.
The 1-sigma error in the time of the event is 91 seconds.
The 1-sigma cross-track error in the shadow position is
893 km.
The sky-plane scale is
17345.1 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=166.0 km assuming a 5% albedo -- 2.5 sec chord
Diameter=67.8 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CENTAURS
Star training set for 160427, (2027/12/17 04:55UT) Object RA Dec mag sep mel Betelgeuse 05:56:41.2 +07:24:35 0.4 4.54 46 Bellatrix 05:26:37.9 +06:22:22 1.6 6.50 54 PPM 149523 05:51:35.1 +09:52:38 6.4 1.90 47 PPM 121330 05:45:24.6 +11:24:58 8.2 0.45 48 PPM 121349 05:46:32.4 +11:02:54 9.6 0.33 48 160427 05:45:14.1 +10:57:57 13.2 48 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 20.3 km
RECON observability=1.0 and success probability=47.4%
| 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 | 04:56:33 | -46.6 | Dark | Up | 35.9 | 120.2 | Up | 04:48:27 - 05:04:40 | 529 |
| Kelowna | 04:56:35 | -46.6 | Dark | Up | 36.0 | 119.8 | Up | 04:48:28 - 05:04:41 | 499 |
| Peachland | 04:56:36 | -46.5 | Dark | Up | 35.9 | 119.5 | Up | 04:48:29 - 05:04:42 | 493 |
| Summerland | 04:56:36 | -46.6 | Dark | Up | 36.0 | 119.5 | Up | 04:48:29 - 05:04:42 | 480 |
| Penticton | 04:56:36 | -46.7 | Dark | Up | 36.1 | 119.5 | Up | 04:48:29 - 05:04:42 | 473 |
| Oliver | 04:56:37 | -46.8 | Dark | Up | 36.3 | 119.3 | Up | 04:48:30 - 05:04:43 | 445 |
| Victoria | 04:56:46 | -44.6 | Dark | Up | 34.4 | 115.2 | Up | 04:48:40 - 05:04:53 | 434 |
| Anarchist Mountain Observatory | 04:56:37 | -47.0 | Dark | Up | 36.5 | 119.4 | Up | 04:48:30 - 05:04:43 | 429 |
| Tonasket | 04:56:38 | -47.0 | Dark | Up | 36.6 | 119.1 | Up | 04:48:31 - 05:04:44 | 404 |
| Okanogan | 04:56:39 | -47.1 | Dark | Up | 36.7 | 118.8 | Up | 04:48:32 - 05:04:45 | 378 |
| Brewster | 04:56:40 | -47.0 | Dark | Up | 36.7 | 118.4 | Up | 04:48:33 - 05:04:46 | 358 |
| Manson/Chelan | 04:56:41 | -46.9 | Dark | Up | 36.6 | 117.9 | Up | 04:48:35 - 05:04:48 | 345 |
| Entiat | 04:56:42 | -46.9 | Dark | Up | 36.6 | 117.7 | Up | 04:48:35 - 05:04:48 | 327 |
| Wenatchee | 04:56:43 | -46.9 | Dark | Up | 36.7 | 117.4 | Up | 04:48:36 - 05:04:49 | 307 |
| Ellensburg | 04:56:44 | -46.9 | Dark | Up | 36.8 | 116.9 | Up | 04:48:38 - 05:04:51 | 275 |
| Yakima | 04:56:45 | -47.0 | Dark | Up | 36.9 | 116.7 | Up | 04:48:39 - 05:04:52 | 241 |
| Toppenish/White Swan | 04:56:46 | -47.2 | Dark | Up | 37.1 | 116.7 | Up | 04:48:39 - 05:04:52 | 221 |
| Pasco | 04:56:43 | -48.0 | Dark | Up | 38.0 | 117.8 | Up | 04:48:36 - 05:04:49 | 196 |
| Goldendale | 04:56:48 | -47.1 | Dark | Up | 37.1 | 115.9 | Up | 04:48:41 - 05:04:54 | 179 |
| PNWRO | 04:56:43 | -48.3 | Dark | Up | 38.2 | 117.9 | Up | 04:48:37 - 05:04:50 | 172 |
| The Dalles | 04:56:49 | -46.9 | Dark | Up | 37.0 | 115.4 | Up | 04:48:43 - 05:04:56 | 164 |
| Maupin | 04:56:50 | -47.1 | Dark | Up | 37.2 | 115.2 | Up | 04:48:43 - 05:04:56 | 127 |
| Sisters | 04:56:53 | -46.9 | Dark | Up | 37.3 | 114.2 | Up | 04:48:47 - 05:05:00 | 57 |
| Redmond | 04:56:52 | -47.2 | Dark | Up | 37.6 | 114.5 | Up | 04:48:46 - 05:04:59 | 50 |
| Bend | 04:56:53 | -47.2 | Dark | Up | 37.6 | 114.2 | Up | 04:48:47 - 05:05:00 | 33 |
| Oregon Observatory | 04:56:54 | -47.1 | Dark | Up | 37.5 | 114.0 | Up | 04:48:47 - 05:05:00 | 20 |
| La Pine/Gilchrist | 04:56:54 | -47.1 | Dark | Up | 37.6 | 113.8 | Up | 04:48:48 - 05:05:01 | 3 |
| North Lake | 04:56:54 | -47.7 | Dark | Up | 38.2 | 114.0 | Up | 04:48:48 - 05:05:01 | -43 |
| Paisley | 04:56:55 | -48.0 | Dark | Up | 38.6 | 114.0 | Up | 04:48:48 - 05:05:01 | -96 |
| Klamath Falls | 04:56:59 | -47.3 | Dark | Up | 38.0 | 112.5 | Up | 04:48:52 - 05:05:05 | -123 |
| Lakeview | 04:56:55 | -48.3 | Dark | Up | 39.0 | 113.8 | Up | 04:48:49 - 05:05:02 | -144 |
| Cedarville | 04:56:56 | -48.6 | Dark | Up | 39.4 | 113.5 | Up | 04:48:50 - 05:05:03 | -205 |
| Fall River/Burney | 04:57:00 | -47.8 | Dark | Up | 38.7 | 112.0 | Up | 04:48:54 - 05:05:07 | -234 |
| Susanville | 04:57:00 | -48.4 | Dark | Up | 39.5 | 112.2 | Up | 04:48:54 - 05:05:07 | -301 |
| Greenville | 04:57:01 | -48.3 | Dark | Up | 39.4 | 111.7 | Up | 04:48:55 - 05:05:08 | -322 |
| Gimple | 04:57:01 | -48.3 | Dark | Up | 39.4 | 111.8 | Up | 04:48:55 - 05:05:08 | -323 |
| Quincy | 04:57:02 | -48.3 | Dark | Up | 39.4 | 111.6 | Up | 04:48:55 - 05:05:08 | -341 |
| Portola | 04:57:01 | -48.7 | Dark | Up | 39.8 | 111.9 | Up | 04:48:54 - 05:05:07 | -358 |
| Reno | 04:57:00 | -49.2 | Dark | Up | 40.4 | 112.3 | Up | 04:48:53 - 05:05:06 | -391 |
| Carson City | 04:57:01 | -49.3 | Dark | Up | 40.5 | 112.0 | Up | 04:48:54 - 05:05:07 | -425 |
| Gardnerville | 04:57:01 | -49.4 | Dark | Up | 40.7 | 111.8 | Up | 04:48:55 - 05:05:08 | -448 |
| Yerington | 04:57:00 | -49.8 | Dark | Up | 41.1 | 112.4 | Up | 04:48:53 - 05:05:06 | -451 |
| Hawthorne | 04:56:59 | -50.3 | Dark | Up | 41.6 | 112.5 | Up | 04:48:53 - 05:05:06 | -501 |
| Niwot | 04:56:20 | -59.7 | Dark | Up | 49.8 | 127.6 | Up | 04:48:13 - 05:04:26 | -505 |
| SwRI | 04:56:20 | -59.7 | Dark | Up | 49.8 | 127.4 | Up | 04:48:14 - 05:04:27 | -514 |
| Lee Vining | 04:57:02 | -50.0 | Dark | Up | 41.5 | 111.6 | Up | 04:48:55 - 05:05:08 | -548 |
| Tonopah | 04:56:57 | -51.4 | Dark | Up | 42.8 | 113.4 | Up | 04:48:50 - 05:05:03 | -563 |
| Bishop | 04:57:01 | -50.7 | Dark | Up | 42.2 | 111.7 | Up | 04:48:54 - 05:05:07 | -614 |
| Beatty | 04:56:57 | -52.0 | Dark | Up | 43.6 | 112.8 | Up | 04:48:51 - 05:05:04 | -679 |
| Indian Springs | 04:56:55 | -52.9 | Dark | Up | 44.5 | 113.5 | Up | 04:48:49 - 05:05:02 | -724 |
| CPSLO | 04:57:11 | -49.1 | Dark | Up | 41.3 | 108.1 | Up | 04:49:04 - 05:05:17 | -781 |
| Henderson | 04:56:54 | -53.5 | Dark | Up | 45.3 | 113.6 | Up | 04:48:48 - 05:05:01 | -785 |
| Searchlight/Boulder City | 04:56:55 | -53.7 | Dark | Up | 45.5 | 113.1 | Up | 04:48:49 - 05:05:02 | -841 |
| Patrick | 04:56:53 | -54.5 | Dark | Up | 46.3 | 114.0 | Up | 04:48:46 - 05:04:59 | -859 |
| Laughlin/Bullhead City | 04:56:55 | -54.0 | Dark | Up | 45.9 | 113.2 | Up | 04:48:48 - 05:05:01 | -875 |
| Kingman/Dolan Springs | 04:56:53 | -54.4 | Dark | Up | 46.3 | 113.6 | Up | 04:48:47 - 05:05:00 | -879 |
| DCO | 04:56:51 | -55.1 | Dark | Up | 47.0 | 114.4 | Up | 04:48:44 - 05:04:57 | -898 |
| Mohave Valley | 04:56:55 | -54.0 | Dark | Up | 46.0 | 112.9 | Up | 04:48:49 - 05:05:02 | -901 |
| Wildwood | 04:57:08 | -50.9 | Dark | Up | 43.2 | 108.8 | Up | 04:49:01 - 05:05:14 | -927 |
| Lake Havasu City | 04:56:55 | -54.3 | Dark | Up | 46.4 | 112.7 | Up | 04:48:49 - 05:05:02 | -944 |
| Parker | 04:56:56 | -54.4 | Dark | Up | 46.5 | 112.4 | Up | 04:48:49 - 05:05:02 | -979 |
| Idyllwild | 04:57:03 | -52.4 | Dark | Up | 44.8 | 110.0 | Up | 04:48:57 - 05:05:10 | -987 |
| Blythe | 04:56:57 | -54.2 | Dark | Up | 46.5 | 111.7 | Up | 04:48:51 - 05:05:04 | -1027 |
| George/Scottsdale | 04:56:50 | -56.4 | Dark | Up | 48.5 | 114.2 | Up | 04:48:43 - 05:04:56 | -1051 |
| Calipatria | 04:57:01 | -53.5 | Dark | Up | 46.0 | 110.4 | Up | 04:48:55 - 05:05:08 | -1063 |
| Yuma | 04:56:59 | -54.3 | Dark | Up | 46.8 | 110.7 | Up | 04:48:53 - 05:05:06 | -1118 |
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 160427, (2027/12/17 04:55UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 4.54 46 Bellatrix 05:25:07.8 +06:20:58 1.6 6.50 54 PPM 149523 05:50:02.7 +09:52:15 6.4 1.90 47 PPM 121330 05:43:51.1 +11:24:21 8.2 0.45 48 PPM 121349 05:44:59.2 +11:02:20 9.6 0.33 48 160427 05:43:40.9 +10:57:19 13.2 48 Positions are for J2000
Event circumstances last updated at 2020/10/31 21:49:25 UT
Marc W. Buie, Southwest Research Institute