Event between (84922) 03VS2 and star GA1220:01543839 with event index number of 337087
Geocentric closest approach at 2019/01/30 11:01:03 UTC
J2000 position of star is 05:13:12.6 +33:07:47
Equinox of date position of star is 05:14:26.9 +33:09:02
Stellar brightness G=10.9,
use SENSEUP=4
Star is 163 degrees from the moon.
Moon is 25% illuminated.
TNO apparent brightness V=19.9
[RECON map]
TNO is 36.7 AU from the Sun
and 36.0 AU from the Earth.
The TNO is moving 15.5
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 222 seconds.
The 1-sigma cross-track error in the shadow position is
1971 km.
The sky-plane scale is
26135.2 km/arcsec.
The TNO has an absolute magnitude Hv=4.2
Diameter=871.0 km assuming a 5% albedo -- 56.2 sec chord
Diameter=355.6 km assuming a 30% albedo -- 23.0 sec chord
Dynamical classification is 3:2E
Star training set for 84922, (2019/01/30 11:01UT) Object RA Dec mag sep mel Aldebaran 04:37:01.1 +16:32:46 0.8 18.63 178 3Iot Aur 04:58:14.4 +33:11:40 2.7 3.39 165 14 Aur 05:16:39.1 +32:42:28 5.2 0.64 163 PPM 070028 05:13:24.4 +32:55:00 7.9 0.32 164 PPM 070038 05:14:01.0 +33:04:15 9.6 0.12 163 84922 05:14:27.6 +33:09:03 10.9 163 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
4.1 sigma about the mid-time.
The median site spacing is 22.1 km
RECON observability=0.4 and success probability=6.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 10:55:10 | -44.0 | Dark | Down | 21.5 | 296.4 | Low | 10:40:10 - 11:10:10 | 2731 |
| Summerland | 10:55:09 | -44.2 | Dark | Down | 21.7 | 296.2 | Low | 10:40:09 - 11:10:09 | 2713 |
| Penticton | 10:55:08 | -44.3 | Dark | Down | 21.4 | 296.4 | Low | 10:40:08 - 11:10:08 | 2693 |
| Okanagan Falls | 10:55:08 | -44.4 | Dark | Down | 21.4 | 296.4 | Low | 10:40:08 - 11:10:08 | 2676 |
| Oliver | 10:55:07 | -44.5 | Dark | Down | 21.3 | 296.5 | Low | 10:40:07 - 11:10:07 | 2663 |
| Anarchist Mountain Observatory | 10:55:05 | -44.4 | Dark | Down | 21.1 | 296.7 | Low | 10:40:05 - 11:10:05 | 2656 |
| Oroville | 10:55:05 | -44.5 | Dark | Down | 21.1 | 296.7 | Low | 10:40:05 - 11:10:05 | 2646 |
| Tonasket | 10:55:05 | -44.6 | Dark | Down | 21.0 | 296.8 | Low | 10:40:05 - 11:10:05 | 2627 |
| Okanogan | 10:55:05 | -44.9 | Dark | Down | 20.9 | 296.8 | Low | 10:40:05 - 11:10:05 | 2592 |
| Niwot | 10:54:38 | -37.7 | Dark | Up | 7.9 | 307.2 | Really Low | 10:39:38 - 11:09:38 | 2561 |
| Brewster | 10:55:02 | -45.1 | Dark | Down | 20.9 | 296.7 | Low | 10:40:02 - 11:10:02 | 2560 |
| Manson/Chelan | 10:55:03 | -45.4 | Dark | Down | 21.1 | 296.6 | Low | 10:40:03 - 11:10:03 | 2527 |
| Entiat | 10:55:02 | -45.6 | Dark | Down | 21.0 | 296.6 | Low | 10:40:02 - 11:10:02 | 2505 |
| Wenatchee | 10:55:01 | -45.8 | Dark | Down | 21.0 | 296.6 | Low | 10:40:01 - 11:10:01 | 2479 |
| Ellensburg | 10:55:00 | -46.1 | Dark | Down | 20.9 | 296.6 | Low | 10:40:00 - 11:10:00 | 2434 |
| Pasco | 10:54:57 | -45.6 | Dark | Down | 19.7 | 297.7 | Really Low | 10:39:57 - 11:09:57 | 2426 |
| PNWRO | 10:54:55 | -45.5 | Dark | Down | 19.5 | 297.9 | Really Low | 10:39:55 - 11:09:55 | 2414 |
| Yakima | 10:55:00 | -46.3 | Dark | Down | 20.7 | 296.8 | Low | 10:40:00 - 11:10:00 | 2397 |
| George/Umatilla | 10:54:55 | -45.9 | Dark | Down | 19.7 | 297.7 | Really Low | 10:39:55 - 11:09:55 | 2388 |
| Toppenish/White Swan | 10:54:58 | -46.3 | Dark | Down | 20.5 | 296.9 | Low | 10:39:58 - 11:09:58 | 2385 |
| Goldendale | 10:54:56 | -46.8 | Dark | Down | 20.6 | 296.8 | Low | 10:39:56 - 11:09:56 | 2319 |
| The Dalles | 10:54:56 | -47.2 | Dark | Down | 20.7 | 296.7 | Low | 10:39:56 - 11:09:56 | 2284 |
| Maupin | 10:54:55 | -47.3 | Dark | Down | 20.4 | 296.9 | Low | 10:39:55 - 11:09:55 | 2250 |
| Madras/Culver | 10:54:53 | -47.6 | Dark | Down | 20.2 | 297.1 | Low | 10:39:53 - 11:09:53 | 2200 |
| Redmond | 10:54:51 | -47.8 | Dark | Down | 20.1 | 297.1 | Low | 10:39:51 - 11:09:51 | 2165 |
| Sisters | 10:54:53 | -48.0 | Dark | Down | 20.4 | 296.9 | Low | 10:39:53 - 11:09:53 | 2151 |
| Bend | 10:54:52 | -47.9 | Dark | Down | 20.1 | 297.1 | Low | 10:39:52 - 11:09:52 | 2140 |
| Oregon Observatory | 10:54:51 | -48.1 | Dark | Down | 20.1 | 297.1 | Low | 10:39:51 - 11:09:51 | 2119 |
| La Pine/Gilchrist | 10:54:51 | -48.2 | Dark | Down | 20.0 | 297.1 | Low | 10:39:51 - 11:09:51 | 2098 |
| North Lake | 10:54:49 | -48.0 | Dark | Down | 19.5 | 297.6 | Really Low | 10:39:49 - 11:09:49 | 2084 |
| Paisley | 10:54:47 | -48.0 | Dark | Down | 19.0 | 298.0 | Really Low | 10:39:47 - 11:09:47 | 2050 |
| Lakeview | 10:54:46 | -48.1 | Dark | Down | 18.6 | 298.2 | Really Low | 10:39:46 - 11:09:46 | 2012 |
| Chiloquin | 10:54:47 | -49.0 | Dark | Down | 19.8 | 297.3 | Really Low | 10:39:47 - 11:09:47 | 1982 |
| Cedarville | 10:54:44 | -48.2 | Dark | Down | 18.2 | 298.5 | Really Low | 10:39:44 - 11:09:44 | 1960 |
| Klamath Falls | 10:54:47 | -49.1 | Dark | Down | 19.6 | 297.4 | Really Low | 10:39:47 - 11:09:47 | 1954 |
| Tulelake | 10:54:46 | -49.0 | Dark | Down | 19.2 | 297.7 | Really Low | 10:39:46 - 11:09:46 | 1942 |
| Fall River/Burney | 10:54:44 | -49.3 | Dark | Down | 18.8 | 298.0 | Really Low | 10:39:44 - 11:09:44 | 1862 |
| Susanville | 10:54:42 | -49.0 | Dark | Down | 18.0 | 298.6 | Really Low | 10:39:42 - 11:09:42 | 1837 |
| Gimple | 10:54:40 | -49.3 | Dark | Down | 18.0 | 298.5 | Really Low | 10:39:40 - 11:09:40 | 1802 |
| Greenville | 10:54:41 | -49.3 | Dark | Down | 18.0 | 298.5 | Really Low | 10:39:41 - 11:09:41 | 1799 |
| Reno | 10:54:39 | -48.7 | Dark | Down | 17.0 | 299.3 | Really Low | 10:39:39 - 11:09:39 | 1796 |
| Portola | 10:54:39 | -49.1 | Dark | Down | 17.6 | 298.8 | Really Low | 10:39:39 - 11:09:39 | 1790 |
| Tonopah | 10:54:33 | -47.3 | Dark | Up | 14.5 | 300.9 | Really Low | 10:39:33 - 11:09:33 | 1782 |
| Quincy | 10:54:41 | -49.4 | Dark | Down | 17.9 | 298.6 | Really Low | 10:39:41 - 11:09:41 | 1780 |
| Yerington | 10:54:37 | -48.4 | Dark | Down | 16.3 | 299.7 | Really Low | 10:39:37 - 11:09:37 | 1775 |
| Carson City | 10:54:38 | -48.8 | Dark | Down | 16.8 | 299.4 | Really Low | 10:39:38 - 11:09:38 | 1764 |
| Hawthorne | 10:54:35 | -48.2 | Dark | Down | 15.7 | 300.1 | Really Low | 10:39:35 - 11:09:35 | 1758 |
| Gardnerville | 10:54:37 | -48.9 | Dark | Down | 16.7 | 299.4 | Really Low | 10:39:37 - 11:09:37 | 1743 |
| Indian Springs | 10:54:30 | -46.5 | Dark | Up | 12.7 | 302.0 | Really Low | 10:39:30 - 11:09:30 | 1724 |
| DCO | 10:54:25 | -44.8 | Dark | Up | 10.2 | 303.5 | Really Low | 10:39:25 - 11:09:25 | 1721 |
| Patrick | 10:54:26 | -45.3 | Dark | Up | 10.9 | 303.1 | Really Low | 10:39:26 - 11:09:26 | 1712 |
| Henderson | 10:54:28 | -46.1 | Dark | Up | 12.0 | 302.5 | Really Low | 10:39:28 - 11:09:28 | 1711 |
| Beatty | 10:54:30 | -47.3 | Dark | Up | 13.6 | 301.4 | Really Low | 10:39:30 - 11:09:30 | 1700 |
| Lee Vining | 10:54:34 | -48.7 | Dark | Down | 15.8 | 300.0 | Really Low | 10:39:34 - 11:09:34 | 1683 |
| Kingman/Dolan Springs | 10:54:26 | -45.5 | Dark | Up | 10.9 | 303.1 | Really Low | 10:39:26 - 11:09:26 | 1682 |
| Bishop | 10:54:33 | -48.4 | Dark | Up | 15.0 | 300.5 | Really Low | 10:39:33 - 11:09:33 | 1663 |
| Searchlight/Boulder City | 10:54:27 | -46.1 | Dark | Up | 11.6 | 302.6 | Really Low | 10:39:27 - 11:09:27 | 1662 |
| Laughlin/Bullhead City | 10:54:27 | -45.9 | Dark | Up | 11.2 | 302.8 | Really Low | 10:39:27 - 11:09:27 | 1653 |
| Mohave Valley | 10:54:25 | -46.0 | Dark | Up | 11.1 | 302.9 | Really Low | 10:39:25 - 11:09:25 | 1629 |
| Lone Pine | 10:54:31 | -48.3 | Dark | Up | 14.4 | 300.8 | Really Low | 10:39:31 - 11:09:31 | 1609 |
| Lake Havasu City | 10:54:24 | -45.9 | Dark | Up | 10.7 | 303.0 | Really Low | 10:39:24 - 11:09:24 | 1606 |
| Parker | 10:54:24 | -45.9 | Dark | Up | 10.5 | 303.1 | Really Low | 10:39:24 - 11:09:24 | 1576 |
| Blythe | 10:54:23 | -46.2 | Dark | Up | 10.4 | 303.0 | Really Low | 10:39:23 - 11:09:23 | 1513 |
| Yuma | 10:54:22 | -46.4 | Dark | Up | 9.9 | 303.2 | Really Low | 10:39:22 - 11:09:22 | 1428 |
| Calipatria | 10:54:22 | -47.1 | Dark | Up | 10.8 | 302.7 | Really Low | 10:39:22 - 11:09:22 | 1420 |
| Idyllwild | 10:54:25 | -47.9 | Dark | Up | 11.9 | 302.0 | Really Low | 10:39:25 - 11:09:25 | 1415 |
| CPSLO | 10:54:31 | -50.7 | Dark | Down | 15.5 | 299.9 | Really Low | 10:39:31 - 11:09:31 | 1365 |
| Wildwood | 10:54:27 | -49.4 | Dark | Up | 13.5 | 301.1 | Really Low | 10:39:27 - 11:09:27 | 1353 |
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 84922, (2019/01/30 11:01UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 18.63 178 3Iot Aur 04:56:59.6 +33:09:58 2.7 3.39 165 14 Aur 05:15:24.3 +32:41:15 5.2 0.64 163 PPM 070028 05:12:09.6 +32:53:42 7.9 0.32 164 PPM 070038 05:12:46.1 +33:02:57 9.6 0.12 163 84922 05:13:12.6 +33:07:47 10.9 163 Positions are for J2000
Event circumstances last updated at 2018/12/04 05:13:00 UT
Marc W. Buie, Southwest Research Institute