Event between 03YN179 and star UC4-574-024435 with event index number of 104278
Geocentric closest approach at 2018/02/05 02:10:38 UTC
J2000 position of star is 06:09:35.4 +24:41:23
Equinox of date position of star is 06:10:41.5 +24:41:07
Stellar brightness R=15.6,
use SENSEUP=128
Star is 104 degrees from the moon.
Moon is 75% illuminated.
TNO apparent brightness V=23.7
[RECON map]
TNO is 44.5 AU from the Sun
and 43.7 AU from the Earth.
The TNO is moving 17.6
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 1139 seconds.
The 1-sigma cross-track error in the shadow position is
5729 km.
The sky-plane scale is
31719.2 km/arcsec.
The TNO has an absolute magnitude Hv=7.1
Diameter=234.4 km assuming a 5% albedo -- 13.4 sec chord
Diameter=95.7 km assuming a 30% albedo -- 5.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 03YN179, (2018/02/05 02:11UT) Object RA Dec mag sep mel Betelgeuse 05:56:09.1 +07:24:32 0.4 17.62 108 Alnath 05:27:26.2 +28:37:16 1.6 10.43 113 3 Gem 06:10:50.0 +23:06:32 5.5 1.58 104 5 Gem 06:12:38.9 +24:24:53 6.7 0.52 103 PPM 095531 06:11:03.6 +24:36:50 9.6 0.11 104 03YN179 06:10:42.1 +24:41:07 15.6 103 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
0.8 sigma about the mid-time.
The median site spacing is 0.0 km
RECON observability=0.0 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) |
| Oroville | 02:13:24 | -12.3 | AT | Down | 48.5 | 109.8 | Up | 01:58:24 - 02:28:24 | 1409 |
| Tonasket | 02:13:25 | -12.2 | AT | Down | 48.6 | 109.5 | Up | 01:58:25 - 02:28:25 | 1388 |
| Okanogan | 02:13:26 | -12.1 | AT | Down | 48.6 | 109.0 | Up | 01:58:26 - 02:28:26 | 1360 |
| Brewster | 02:13:28 | -11.9 | CT | Down | 48.6 | 108.6 | Up | 01:58:28 - 02:28:28 | 1339 |
| Manson/Chelan | 02:13:29 | -11.6 | CT | Down | 48.4 | 108.0 | Up | 01:58:29 - 02:28:29 | 1327 |
| Entiat | 02:13:31 | -11.5 | CT | Down | 48.5 | 107.7 | Up | 01:58:31 - 02:28:31 | 1308 |
| Wenatchee | 02:13:32 | -11.4 | CT | Down | 48.5 | 107.3 | Up | 01:58:32 - 02:28:32 | 1287 |
| Ellensburg | 02:13:33 | -11.2 | CT | Down | 48.5 | 106.7 | Up | 01:58:33 - 02:28:33 | 1253 |
| Yakima | 02:13:35 | -11.1 | CT | Down | 48.6 | 106.2 | Up | 01:58:35 - 02:28:35 | 1215 |
| Toppenish/White Swan | 02:13:35 | -11.2 | CT | Down | 48.7 | 106.1 | Up | 01:58:35 - 02:28:35 | 1191 |
| Pasco | 02:13:32 | -12.0 | CT | Down | 49.6 | 107.2 | Up | 01:58:32 - 02:28:32 | 1152 |
| Goldendale | 02:13:38 | -10.8 | CT | Down | 48.6 | 105.1 | Up | 01:58:38 - 02:28:38 | 1148 |
| The Dalles | 02:13:40 | -10.5 | CT | Down | 48.4 | 104.6 | Up | 01:58:40 - 02:28:40 | 1135 |
| George/Umatilla | 02:13:33 | -11.8 | CT | Down | 49.6 | 106.6 | Up | 01:58:33 - 02:28:33 | 1125 |
| PNWRO | 02:13:32 | -12.1 | AT | Down | 49.8 | 107.1 | Up | 01:58:32 - 02:28:32 | 1123 |
| Maupin | 02:13:41 | -10.5 | CT | Down | 48.6 | 104.2 | Up | 01:58:41 - 02:28:41 | 1093 |
| Madras/Culver | 02:13:43 | -10.3 | CT | Down | 48.7 | 103.6 | Up | 01:58:43 - 02:28:43 | 1042 |
| Sisters | 02:13:45 | -9.9 | CT | Down | 48.5 | 102.8 | Up | 01:58:45 - 02:28:45 | 1021 |
| Redmond | 02:13:44 | -10.2 | CT | Down | 48.8 | 103.1 | Up | 01:58:44 - 02:28:44 | 1009 |
| Bend | 02:13:45 | -10.1 | CT | Down | 48.7 | 102.8 | Up | 01:58:45 - 02:28:45 | 992 |
| Oregon Observatory | 02:13:46 | -10.0 | CT | Down | 48.7 | 102.5 | Up | 01:58:46 - 02:28:46 | 978 |
| La Pine/Gilchrist | 02:13:47 | -9.9 | CT | Down | 48.7 | 102.2 | Up | 01:58:47 - 02:28:47 | 960 |
| North Lake | 02:13:46 | -10.2 | CT | Down | 49.2 | 102.2 | Up | 01:58:46 - 02:28:46 | 904 |
| Chiloquin | 02:13:51 | -9.4 | CT | Down | 48.6 | 100.7 | Up | 01:58:51 - 02:28:51 | 862 |
| Paisley | 02:13:47 | -10.3 | CT | Down | 49.6 | 101.9 | Up | 01:58:47 - 02:28:47 | 842 |
| Klamath Falls | 02:13:52 | -9.4 | CT | Down | 48.8 | 100.4 | Up | 01:58:52 - 02:28:52 | 826 |
| Tulelake | 02:13:52 | -9.5 | CT | Down | 49.0 | 100.3 | Up | 01:58:52 - 02:28:52 | 793 |
| Lakeview | 02:13:48 | -10.4 | CT | Down | 49.8 | 101.5 | Up | 01:58:48 - 02:28:48 | 788 |
| Cedarville | 02:13:49 | -10.4 | CT | Down | 50.1 | 100.9 | Up | 01:58:49 - 02:28:49 | 720 |
| Fall River/Burney | 02:13:55 | -9.4 | CT | Down | 49.3 | 99.3 | Up | 01:58:55 - 02:28:55 | 702 |
| Susanville | 02:13:54 | -9.8 | CT | Down | 49.9 | 99.2 | Up | 01:58:54 - 02:28:54 | 622 |
| Greenville | 02:13:55 | -9.5 | CT | Down | 49.7 | 98.6 | Up | 01:58:55 - 02:28:55 | 602 |
| Gimple | 02:13:55 | -9.6 | CT | Down | 49.8 | 98.7 | Up | 01:58:55 - 02:28:55 | 600 |
| Quincy | 02:13:56 | -9.5 | CT | Down | 49.8 | 98.4 | Up | 01:58:56 - 02:28:56 | 582 |
| Portola | 02:13:55 | -9.8 | CT | Down | 50.2 | 98.6 | Up | 01:58:55 - 02:28:55 | 558 |
| Reno | 02:13:53 | -10.2 | CT | Down | 50.7 | 98.8 | Up | 01:58:53 - 02:28:53 | 516 |
| Carson City | 02:13:54 | -10.2 | CT | Down | 50.8 | 98.4 | Up | 01:58:54 - 02:28:54 | 479 |
| Gardnerville | 02:13:55 | -10.1 | CT | Down | 50.8 | 98.1 | Up | 01:58:55 - 02:28:55 | 454 |
| Yerington | 02:13:52 | -10.6 | CT | Down | 51.3 | 98.7 | Up | 01:58:52 - 02:28:52 | 444 |
| Hawthorne | 02:13:51 | -10.9 | CT | Down | 51.7 | 98.5 | Up | 01:58:51 - 02:28:51 | 385 |
| Lee Vining | 02:13:55 | -10.4 | CT | Down | 51.5 | 97.4 | Up | 01:58:55 - 02:28:55 | 340 |
| Tonopah | 02:13:48 | -11.9 | CT | Down | 52.9 | 99.0 | Up | 01:58:48 - 02:28:48 | 304 |
| Niwot | 02:12:55 | -21.3 | Dark | Down | 61.2 | 113.4 | Up | 01:57:55 - 02:27:55 | 269 |
| Bishop | 02:13:54 | -10.9 | CT | Down | 52.1 | 97.2 | Up | 01:58:54 - 02:28:54 | 262 |
| Lone Pine | 02:13:54 | -11.0 | CT | Down | 52.5 | 96.5 | Up | 01:58:54 - 02:28:54 | 176 |
| Beatty | 02:13:49 | -12.0 | AT | Down | 53.4 | 97.8 | Up | 01:58:49 - 02:28:49 | 175 |
| Indian Springs | 02:13:45 | -12.8 | AT | Down | 54.3 | 98.1 | Up | 01:58:45 - 02:28:45 | 117 |
| CPSLO | 02:14:07 | -8.7 | CT | Down | 50.5 | 93.1 | Up | 01:59:07 - 02:29:07 | 110 |
| Henderson | 02:13:44 | -13.3 | AT | Down | 55.0 | 97.9 | Up | 01:58:44 - 02:28:44 | 46 |
| Searchlight/Boulder City | 02:13:45 | -13.2 | AT | Down | 55.1 | 97.2 | Up | 01:58:45 - 02:28:45 | -15 |
| Patrick | 02:13:41 | -14.0 | AT | Down | 55.9 | 97.8 | Up | 01:58:41 - 02:28:41 | -45 |
| Laughlin/Bullhead City | 02:13:44 | -13.4 | AT | Down | 55.4 | 97.0 | Up | 01:58:44 - 02:28:44 | -54 |
| Kingman/Dolan Springs | 02:13:42 | -13.8 | AT | Down | 55.8 | 97.4 | Up | 01:58:42 - 02:28:42 | -64 |
| Wildwood | 02:14:02 | -10.0 | CT | Down | 52.2 | 92.9 | Up | 01:59:02 - 02:29:02 | -67 |
| Mohave Valley | 02:13:45 | -13.4 | AT | Down | 55.4 | 96.6 | Up | 01:58:45 - 02:28:45 | -83 |
| DCO | 02:13:39 | -14.5 | AT | Down | 56.5 | 97.9 | Up | 01:58:39 - 02:28:39 | -93 |
| Lake Havasu City | 02:13:44 | -13.5 | AT | Down | 55.7 | 96.2 | Up | 01:58:44 - 02:28:44 | -130 |
| Idyllwild | 02:13:56 | -11.5 | CT | Down | 53.8 | 93.6 | Up | 01:58:56 - 02:28:56 | -152 |
| Parker | 02:13:45 | -13.5 | AT | Down | 55.7 | 95.7 | Up | 01:58:45 - 02:28:45 | -167 |
| Blythe | 02:13:48 | -13.1 | AT | Down | 55.6 | 94.7 | Up | 01:58:48 - 02:28:48 | -215 |
| Calipatria | 02:13:52 | -12.3 | AT | Down | 54.8 | 93.4 | Up | 01:58:52 - 02:28:52 | -244 |
| Yuma | 02:13:50 | -12.9 | AT | Down | 55.6 | 93.4 | Up | 01:58:50 - 02:28:50 | -311 |
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 03YN179, (2018/02/05 02:11UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 17.62 108 Alnath 05:26:17.5 +28:36:24 1.6 10.43 113 3 Gem 06:09:44.0 +23:06:48 5.5 1.58 104 5 Gem 06:11:32.3 +24:25:12 6.7 0.52 103 PPM 095531 06:09:56.9 +24:37:07 9.6 0.11 104 03YN179 06:09:35.4 +24:41:23 15.6 104 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:14:49 UT
Marc W. Buie, Southwest Research Institute