Event between 01FQ185 and star GA0760:05059717 with event index number of 250331
Geocentric closest approach at 2020/03/20 08:17:13 UTC
J2000 position of star is 14:48:02.2 -12:43:32
Equinox of date position of star is 14:49:05.5 -12:48:19
Stellar brightness G=10.3,
use SENSEUP=4
Star is 93 degrees from the moon.
Moon is 14% illuminated.
TNO apparent brightness V=22.6
[RECON map]
TNO is 37.1 AU from the Sun
and 36.4 AU from the Earth.
The TNO is moving 16.0
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 161 seconds.
The 1-sigma cross-track error in the shadow position is
1966 km.
The sky-plane scale is
26389.9 km/arcsec.
The TNO has an absolute magnitude Hv=6.8
Diameter=259.4 km assuming a 5% albedo -- 16.2 sec chord
Diameter=105.9 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is 2:1E
Star training set for 01FQ185, (2020/03/20 08:17UT) Object RA Dec mag sep mel Spica 13:26:15.7 -11:15:58 1.0 20.32 112 27Bet Lib 15:18:05.9 -09:27:23 2.6 7.85 87 7Mu Lib 14:50:25.7 -14:13:55 5.8 1.46 92 PPM 229299 14:49:01.3 -12:55:26 6.6 0.12 93 PPM 229292 14:48:44.6 -12:49:40 9.4 0.10 93 01FQ185 14:49:08.5 -12:48:32 10.3 92 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 12.3 km
RECON observability=0.9 and success probability=14.9%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 08:21:46 | -39.9 | Dark | Down | 19.2 | 140.9 | Really Low | 08:07:51 - 08:35:41 | -475 |
| Summerland | 08:21:48 | -40.2 | Dark | Down | 19.3 | 140.6 | Really Low | 08:07:53 - 08:35:43 | -505 |
| Penticton | 08:21:48 | -40.3 | Dark | Down | 19.4 | 140.7 | Really Low | 08:07:53 - 08:35:43 | -506 |
| Okanagan Falls | 08:21:49 | -40.5 | Dark | Down | 19.6 | 140.6 | Really Low | 08:07:54 - 08:35:44 | -520 |
| Oliver | 08:21:48 | -40.6 | Dark | Down | 19.7 | 140.6 | Really Low | 08:07:53 - 08:35:43 | -531 |
| Anarchist Mountain Observatory | 08:21:49 | -40.8 | Dark | Down | 19.9 | 140.7 | Really Low | 08:07:54 - 08:35:44 | -537 |
| Oroville | 08:21:49 | -40.9 | Dark | Down | 19.9 | 140.7 | Really Low | 08:07:54 - 08:35:44 | -545 |
| Tonasket | 08:21:49 | -41.1 | Dark | Down | 20.1 | 140.6 | Low | 08:07:54 - 08:35:44 | -561 |
| Okanogan | 08:21:50 | -41.4 | Dark | Down | 20.3 | 140.4 | Low | 08:07:55 - 08:35:45 | -590 |
| Brewster | 08:21:51 | -41.7 | Dark | Down | 20.5 | 140.1 | Low | 08:07:56 - 08:35:46 | -616 |
| Manson/Chelan | 08:21:53 | -41.9 | Dark | Down | 20.5 | 139.7 | Low | 08:07:58 - 08:35:48 | -642 |
| Entiat | 08:21:53 | -42.2 | Dark | Down | 20.6 | 139.6 | Low | 08:07:58 - 08:35:48 | -661 |
| Wenatchee | 08:21:54 | -42.4 | Dark | Down | 20.7 | 139.5 | Low | 08:07:59 - 08:35:49 | -682 |
| Niwot | 08:21:04 | -46.5 | Dark | Down | 32.8 | 152.3 | Up | 08:07:09 - 08:34:59 | -718 |
| Ellensburg | 08:21:55 | -42.9 | Dark | Down | 21.0 | 139.2 | Low | 08:08:00 - 08:35:50 | -720 |
| SwRI | 08:21:05 | -46.6 | Dark | Down | 32.9 | 152.2 | Up | 08:07:10 - 08:35:00 | -729 |
| Pasco | 08:21:52 | -43.5 | Dark | Down | 22.2 | 140.3 | Low | 08:07:57 - 08:35:47 | -730 |
| PNWRO | 08:21:52 | -43.7 | Dark | Down | 22.5 | 140.5 | Low | 08:07:57 - 08:35:47 | -742 |
| Yakima | 08:21:56 | -43.3 | Dark | Down | 21.3 | 139.1 | Low | 08:08:01 - 08:35:51 | -751 |
| Toppenish/White Swan | 08:21:56 | -43.5 | Dark | Down | 21.5 | 139.2 | Low | 08:08:01 - 08:35:51 | -762 |
| George/Umatilla | 08:21:53 | -43.9 | Dark | Down | 22.3 | 140.0 | Low | 08:07:58 - 08:35:48 | -762 |
| Goldendale | 08:21:59 | -44.0 | Dark | Down | 21.7 | 138.6 | Low | 08:08:04 - 08:35:54 | -817 |
| The Dalles | 08:22:00 | -44.3 | Dark | Down | 21.7 | 138.2 | Low | 08:08:05 - 08:35:55 | -845 |
| Maupin | 08:22:00 | -44.7 | Dark | Down | 22.1 | 138.2 | Low | 08:08:05 - 08:35:55 | -874 |
| Madras/Culver | 08:22:01 | -45.2 | Dark | Down | 22.5 | 138.0 | Low | 08:08:06 - 08:35:56 | -918 |
| Redmond | 08:22:02 | -45.6 | Dark | Down | 22.7 | 137.9 | Low | 08:08:07 - 08:35:57 | -947 |
| Sisters | 08:22:03 | -45.6 | Dark | Down | 22.5 | 137.5 | Low | 08:08:08 - 08:35:58 | -958 |
| Bend | 08:22:02 | -45.8 | Dark | Down | 22.8 | 137.7 | Low | 08:08:07 - 08:35:57 | -968 |
| Oregon Observatory | 08:22:03 | -46.0 | Dark | Down | 22.9 | 137.5 | Low | 08:08:08 - 08:35:58 | -986 |
| La Pine/Gilchrist | 08:22:03 | -46.2 | Dark | Down | 23.0 | 137.4 | Low | 08:08:08 - 08:35:58 | -1004 |
| North Lake | 08:22:02 | -46.6 | Dark | Down | 23.6 | 137.9 | Low | 08:08:07 - 08:35:57 | -1019 |
| Paisley | 08:22:02 | -47.1 | Dark | Down | 24.2 | 138.0 | Low | 08:08:07 - 08:35:57 | -1050 |
| Lakeview | 08:22:01 | -47.6 | Dark | Down | 24.7 | 138.0 | Low | 08:08:06 - 08:35:56 | -1084 |
| Chiloquin | 08:22:06 | -47.3 | Dark | Down | 23.7 | 136.8 | Low | 08:08:11 - 08:36:01 | -1104 |
| Klamath Falls | 08:22:07 | -47.7 | Dark | Down | 23.9 | 136.8 | Low | 08:08:12 - 08:36:02 | -1129 |
| Cedarville | 08:22:01 | -48.3 | Dark | Down | 25.3 | 138.0 | Low | 08:08:06 - 08:35:56 | -1130 |
| Tulelake | 08:22:05 | -47.9 | Dark | Down | 24.3 | 136.9 | Low | 08:08:10 - 08:36:00 | -1141 |
| Fall River/Burney | 08:22:06 | -48.8 | Dark | Down | 25.0 | 136.7 | Low | 08:08:11 - 08:36:01 | -1211 |
| Susanville | 08:22:05 | -49.4 | Dark | Down | 25.8 | 137.2 | Low | 08:08:10 - 08:36:00 | -1237 |
| Gimple | 08:22:06 | -49.7 | Dark | Down | 25.9 | 136.9 | Low | 08:08:11 - 08:36:01 | -1267 |
| Greenville | 08:22:06 | -49.7 | Dark | Down | 25.9 | 136.9 | Low | 08:08:11 - 08:36:01 | -1270 |
| Reno | 08:22:03 | -50.2 | Dark | Down | 26.9 | 137.7 | Low | 08:08:08 - 08:35:58 | -1279 |
| Portola | 08:22:05 | -50.0 | Dark | Down | 26.4 | 137.2 | Low | 08:08:10 - 08:36:00 | -1280 |
| Quincy | 08:22:06 | -49.9 | Dark | Down | 26.0 | 136.8 | Low | 08:08:11 - 08:36:01 | -1287 |
| Yerington | 08:22:01 | -50.7 | Dark | Down | 27.7 | 138.1 | Low | 08:08:06 - 08:35:56 | -1302 |
| Carson City | 08:22:03 | -50.6 | Dark | Down | 27.2 | 137.6 | Low | 08:08:08 - 08:35:58 | -1308 |
| Tonopah | 08:21:54 | -51.4 | Dark | Down | 29.3 | 139.6 | Low | 08:07:59 - 08:35:49 | -1309 |
| Hawthorne | 08:21:59 | -51.1 | Dark | Down | 28.3 | 138.4 | Low | 08:08:04 - 08:35:54 | -1321 |
| Gardnerville | 08:22:03 | -50.8 | Dark | Down | 27.4 | 137.5 | Low | 08:08:08 - 08:35:58 | -1327 |
| Indian Springs | 08:21:48 | -52.6 | Dark | Down | 31.3 | 140.5 | Up | 08:07:53 - 08:35:43 | -1375 |
| Lee Vining | 08:22:01 | -51.7 | Dark | Down | 28.4 | 137.8 | Low | 08:08:06 - 08:35:56 | -1386 |
| Beatty | 08:21:54 | -52.5 | Dark | Down | 30.5 | 139.6 | Up | 08:07:59 - 08:35:49 | -1388 |
| Henderson | 08:21:46 | -53.0 | Dark | Down | 32.0 | 140.9 | Up | 08:07:51 - 08:35:41 | -1394 |
| DCO | 08:21:39 | -53.5 | Dark | Down | 33.7 | 142.3 | Up | 08:07:44 - 08:35:34 | -1404 |
| Patrick | 08:21:42 | -53.4 | Dark | Down | 33.1 | 141.8 | Up | 08:07:47 - 08:35:37 | -1405 |
| Bishop | 08:21:59 | -52.2 | Dark | Down | 29.3 | 138.2 | Low | 08:08:04 - 08:35:54 | -1409 |
| Kingman/Dolan Springs | 08:21:43 | -53.6 | Dark | Down | 33.2 | 141.5 | Up | 08:07:48 - 08:35:38 | -1430 |
| Searchlight/Boulder City | 08:21:47 | -53.5 | Dark | Down | 32.5 | 140.8 | Up | 08:07:52 - 08:35:42 | -1440 |
| Laughlin/Bullhead City | 08:21:45 | -53.8 | Dark | Down | 32.9 | 141.0 | Up | 08:07:50 - 08:35:40 | -1452 |
| Lone Pine | 08:21:59 | -53.0 | Dark | Down | 30.0 | 138.2 | Up | 08:08:04 - 08:35:54 | -1461 |
| Mohave Valley | 08:21:45 | -54.0 | Dark | Down | 33.1 | 140.9 | Up | 08:07:50 - 08:35:40 | -1475 |
| Lake Havasu City | 08:21:44 | -54.4 | Dark | Down | 33.6 | 140.9 | Up | 08:07:49 - 08:35:39 | -1499 |
| Parker | 08:21:44 | -54.7 | Dark | Down | 33.8 | 140.8 | Up | 08:07:49 - 08:35:39 | -1528 |
| Blythe | 08:21:46 | -55.3 | Dark | Down | 34.1 | 140.3 | Up | 08:07:51 - 08:35:41 | -1584 |
| Idyllwild | 08:21:54 | -55.6 | Dark | Down | 32.9 | 138.3 | Up | 08:07:59 - 08:35:49 | -1655 |
| Calipatria | 08:21:49 | -55.9 | Dark | Down | 34.0 | 139.2 | Up | 08:07:54 - 08:35:44 | -1662 |
| Yuma | 08:21:46 | -56.2 | Dark | Down | 34.8 | 139.9 | Up | 08:07:51 - 08:35:41 | -1665 |
| CPSLO | 08:22:09 | -54.5 | Dark | Down | 29.5 | 135.4 | Low | 08:08:14 - 08:36:04 | -1668 |
| Wildwood | 08:22:01 | -55.5 | Dark | Down | 31.6 | 136.7 | Up | 08:08:06 - 08:35:56 | -1695 |
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 01FQ185, (2020/03/20 08:17UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 20.32 112 27Bet Lib 15:17:00.3 -09:22:59 2.6 7.85 87 7Mu Lib 14:49:19.0 -14:08:56 5.8 1.46 92 PPM 229299 14:47:55.0 -12:50:26 6.6 0.12 93 PPM 229292 14:47:38.3 -12:44:39 9.4 0.10 93 01FQ185 14:48:02.2 -12:43:32 10.3 93 Positions are for J2000
Event circumstances last updated at 2019/04/25 23:25:17 UT
Marc W. Buie, Southwest Research Institute