Event between (281371) 08FC76 and star GA0900:02281819 with event index number of 1128272
Geocentric closest approach at 2022/01/21 08:52:14 UTC
J2000 position of star is 07:03:25.9 +01:56:00
Equinox of date position of star is 07:04:28.9 +01:54:09
Stellar brightness G=15.4,
use SENSEUP=128
Star is 58 degrees from the moon.
Moon is 89% illuminated.
TNO apparent brightness V=21.1
[RECON map]
TNO is 12.9 AU from the Sun
and 12.0 AU from the Earth.
The TNO is moving 21.4
km/sec on the sky relative to the star, or,
8.9 arcsec/hr.
The 1-sigma error in the time of the event is 123 seconds.
The 1-sigma cross-track error in the shadow position is
1407 km.
The sky-plane scale is
8689.4 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=83.2 km assuming a 5% albedo -- 2.8 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
Star training set for 281371, (2022/01/21 08:52UT) Object RA Dec mag sep mel Betelgeuse 05:56:22.0 +07:24:34 0.4 17.86 73 Alhena 06:38:59.2 +16:22:43 1.9 15.79 62 PPM 151661 07:00:06.6 +03:34:15 6.0 2.01 59 PPM 151846 07:05:10.8 +01:51:49 8.4 0.15 58 281371 07:04:34.7 +01:53:58 15.4 58 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 19.1 km
RECON observability=1.0 and success probability=17.4%
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 | 08:51:08 | -58.5 | Dark | Up | 36.1 | 215.9 | Up | 08:40:26 - 09:01:51 | 2594 |
Kelowna | 08:51:08 | -58.9 | Dark | Up | 36.4 | 215.9 | Up | 08:40:26 - 09:01:51 | 2566 |
Peachland | 08:51:09 | -59.0 | Dark | Up | 36.6 | 215.6 | Up | 08:40:26 - 09:01:51 | 2556 |
Summerland | 08:51:08 | -59.2 | Dark | Up | 36.7 | 215.8 | Up | 08:40:26 - 09:01:51 | 2547 |
Penticton | 08:51:07 | -59.2 | Dark | Up | 36.7 | 215.9 | Up | 08:40:25 - 09:01:50 | 2543 |
Oliver | 08:51:07 | -59.5 | Dark | Up | 37.0 | 216.1 | Up | 08:40:24 - 09:01:49 | 2518 |
Anarchist Mountain Observatory | 08:51:06 | -59.6 | Dark | Up | 37.1 | 216.4 | Up | 08:40:23 - 09:01:48 | 2508 |
Tonasket | 08:51:05 | -60.0 | Dark | Up | 37.4 | 216.4 | Up | 08:40:23 - 09:01:48 | 2485 |
Okanogan | 08:51:05 | -60.3 | Dark | Up | 37.7 | 216.4 | Up | 08:40:23 - 09:01:48 | 2459 |
Victoria | 08:51:17 | -60.9 | Dark | Up | 39.0 | 211.9 | Up | 08:40:35 - 09:02:00 | 2440 |
Brewster | 08:51:05 | -60.6 | Dark | Up | 38.0 | 216.3 | Up | 08:40:23 - 09:01:48 | 2438 |
Manson/Chelan | 08:51:06 | -60.9 | Dark | Up | 38.3 | 216.0 | Up | 08:40:23 - 09:01:48 | 2420 |
Entiat | 08:51:06 | -61.1 | Dark | Up | 38.5 | 216.0 | Up | 08:40:23 - 09:01:48 | 2404 |
Wenatchee | 08:51:05 | -61.4 | Dark | Up | 38.7 | 216.0 | Up | 08:40:23 - 09:01:48 | 2384 |
Ellensburg | 08:51:05 | -61.8 | Dark | Up | 39.2 | 215.9 | Up | 08:40:23 - 09:01:48 | 2352 |
Yakima | 08:51:05 | -62.2 | Dark | Up | 39.5 | 216.1 | Up | 08:40:22 - 09:01:47 | 2322 |
Pasco | 08:50:59 | -62.2 | Dark | Up | 39.2 | 217.9 | Up | 08:40:17 - 09:01:42 | 2308 |
Toppenish/White Swan | 08:51:04 | -62.4 | Dark | Up | 39.6 | 216.4 | Up | 08:40:21 - 09:01:46 | 2307 |
PNWRO | 08:50:58 | -62.3 | Dark | Up | 39.3 | 218.3 | Up | 08:40:16 - 09:01:41 | 2291 |
Goldendale | 08:51:04 | -63.0 | Dark | Up | 40.2 | 216.2 | Up | 08:40:21 - 09:01:46 | 2262 |
The Dalles | 08:51:05 | -63.3 | Dark | Up | 40.6 | 215.8 | Up | 08:40:22 - 09:01:47 | 2241 |
Maupin | 08:51:03 | -63.7 | Dark | Up | 40.9 | 216.2 | Up | 08:40:21 - 09:01:46 | 2210 |
Redmond | 08:51:02 | -64.5 | Dark | Up | 41.6 | 216.5 | Up | 08:40:19 - 09:01:44 | 2140 |
Sisters | 08:51:03 | -64.6 | Dark | Up | 41.8 | 216.0 | Up | 08:40:21 - 09:01:46 | 2139 |
Bend | 08:51:02 | -64.8 | Dark | Up | 41.9 | 216.5 | Up | 08:40:19 - 09:01:44 | 2122 |
Oregon Observatory | 08:51:02 | -65.0 | Dark | Up | 42.1 | 216.4 | Up | 08:40:19 - 09:01:44 | 2108 |
La Pine/Gilchrist | 08:51:02 | -65.2 | Dark | Up | 42.3 | 216.4 | Up | 08:40:19 - 09:01:44 | 2091 |
North Lake | 08:50:59 | -65.4 | Dark | Up | 42.3 | 217.4 | Up | 08:40:16 - 09:01:41 | 2062 |
Paisley | 08:50:57 | -65.8 | Dark | Up | 42.6 | 218.1 | Up | 08:40:14 - 09:01:39 | 2021 |
Lakeview | 08:50:55 | -66.3 | Dark | Up | 42.9 | 218.6 | Up | 08:40:12 - 09:01:37 | 1982 |
Klamath Falls | 08:51:00 | -66.6 | Dark | Up | 43.5 | 216.9 | Up | 08:40:17 - 09:01:42 | 1973 |
Niwot | 08:50:02 | -60.8 | Dark | Up | 36.0 | 236.1 | Up | 08:39:20 - 09:00:45 | 1946 |
SwRI | 08:50:02 | -61.0 | Dark | Up | 36.1 | 236.1 | Up | 08:39:20 - 09:00:45 | 1936 |
Cedarville | 08:50:53 | -66.8 | Dark | Up | 43.4 | 219.2 | Up | 08:40:10 - 09:01:35 | 1931 |
Fall River/Burney | 08:50:56 | -67.6 | Dark | Up | 44.3 | 218.0 | Up | 08:40:14 - 09:01:39 | 1880 |
Susanville | 08:50:53 | -68.0 | Dark | Up | 44.5 | 219.3 | Up | 08:40:10 - 09:01:35 | 1835 |
Gimple | 08:50:53 | -68.3 | Dark | Up | 44.8 | 219.2 | Up | 08:40:10 - 09:01:35 | 1810 |
Greenville | 08:50:53 | -68.3 | Dark | Up | 44.8 | 219.1 | Up | 08:40:10 - 09:01:35 | 1809 |
Quincy | 08:50:53 | -68.5 | Dark | Up | 45.0 | 219.3 | Up | 08:40:10 - 09:01:35 | 1792 |
Portola | 08:50:51 | -68.5 | Dark | Up | 44.8 | 219.9 | Up | 08:40:08 - 09:01:33 | 1786 |
Reno | 08:50:48 | -68.5 | Dark | Up | 44.7 | 220.9 | Up | 08:40:06 - 09:01:31 | 1770 |
Carson City | 08:50:47 | -68.8 | Dark | Up | 45.0 | 221.1 | Up | 08:40:05 - 09:01:30 | 1740 |
Yerington | 08:50:45 | -68.8 | Dark | Up | 44.8 | 222.0 | Up | 08:40:02 - 09:01:27 | 1729 |
Gardnerville | 08:50:47 | -69.0 | Dark | Up | 45.1 | 221.4 | Up | 08:40:04 - 09:01:29 | 1720 |
Hawthorne | 08:50:42 | -69.0 | Dark | Up | 44.9 | 223.0 | Up | 08:40:00 - 09:01:25 | 1695 |
Tonopah | 08:50:36 | -68.8 | Dark | Up | 44.5 | 224.9 | Up | 08:39:53 - 09:01:18 | 1668 |
Lee Vining | 08:50:43 | -69.6 | Dark | Up | 45.6 | 222.8 | Up | 08:40:00 - 09:01:25 | 1642 |
Bishop | 08:50:39 | -69.9 | Dark | Up | 45.6 | 224.0 | Up | 08:39:56 - 09:01:21 | 1597 |
Beatty | 08:50:32 | -69.5 | Dark | Up | 45.0 | 226.2 | Up | 08:39:50 - 09:01:15 | 1572 |
Indian Springs | 08:50:28 | -69.2 | Dark | Up | 44.6 | 227.7 | Up | 08:39:45 - 09:01:10 | 1554 |
Henderson | 08:50:24 | -69.3 | Dark | Up | 44.6 | 228.9 | Up | 08:39:42 - 09:01:07 | 1514 |
Patrick | 08:50:19 | -69.1 | Dark | Up | 44.3 | 230.5 | Up | 08:39:37 - 09:01:02 | 1469 |
Searchlight/Boulder City | 08:50:23 | -69.6 | Dark | Up | 44.9 | 229.3 | Up | 08:39:41 - 09:01:06 | 1464 |
DCO | 08:50:16 | -68.9 | Dark | Up | 44.0 | 231.5 | Up | 08:39:34 - 09:00:59 | 1449 |
Kingman/Dolan Springs | 08:50:19 | -69.3 | Dark | Up | 44.5 | 230.5 | Up | 08:39:37 - 09:01:02 | 1448 |
Laughlin/Bullhead City | 08:50:21 | -69.7 | Dark | Up | 44.9 | 229.9 | Up | 08:39:39 - 09:01:04 | 1441 |
Mohave Valley | 08:50:21 | -69.8 | Dark | Up | 45.1 | 230.2 | Up | 08:39:38 - 09:01:03 | 1416 |
CPSLO | 08:50:43 | -72.6 | Dark | Up | 48.3 | 222.8 | Up | 08:40:01 - 09:01:26 | 1394 |
Lake Havasu City | 08:50:19 | -70.0 | Dark | Up | 45.2 | 230.7 | Up | 08:39:36 - 09:01:01 | 1383 |
Parker | 08:50:18 | -70.2 | Dark | Up | 45.4 | 231.0 | Up | 08:39:36 - 09:01:01 | 1352 |
George/Scottsdale | 08:50:09 | -68.9 | Dark | Up | 44.0 | 233.9 | Up | 08:39:26 - 09:00:51 | 1337 |
Wildwood | 08:50:34 | -72.6 | Dark | Up | 48.0 | 226.2 | Up | 08:39:51 - 09:01:16 | 1306 |
Blythe | 08:50:18 | -70.7 | Dark | Up | 45.9 | 231.1 | Up | 08:39:36 - 09:01:01 | 1302 |
Idyllwild | 08:50:26 | -71.9 | Dark | Up | 47.1 | 228.7 | Up | 08:39:44 - 09:01:09 | 1293 |
Calipatria | 08:50:20 | -71.6 | Dark | Up | 46.8 | 230.5 | Up | 08:39:38 - 09:01:03 | 1248 |
Yuma | 08:50:16 | -71.4 | Dark | Up | 46.5 | 231.8 | Up | 08:39:34 - 09:00:59 | 1218 |
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 281371, (2022/01/21 08:52UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 17.86 73 Alhena 06:37:42.8 +16:23:57 1.9 15.79 62 PPM 151661 06:58:57.0 +03:36:08 6.0 2.01 59 PPM 151846 07:04:02.0 +01:53:52 8.4 0.15 58 281371 07:03:25.9 +01:56:00 15.4 58 Positions are for J2000
Event circumstances last updated at 2020/03/18 21:02:02 UT
Marc W. Buie, Southwest Research Institute