Event between (472262) 14QN441 and star UC4-429-003428 with event index number of 150616
Geocentric closest approach at 2017/07/20 11:22:57 UTC
J2000 position of star is 02:49:10.5 -04:20:53
Equinox of date position of star is 02:50:00.6 -04:16:46
Stellar brightness R=16.1
Star is 40 degrees from the moon.
Moon is 12% illuminated.
TNO apparent brightness V=22.0
[RECON map]
TNO is 33.2 AU from the Sun
and 33.4 AU from the Earth.
The TNO is moving 15.2
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 182 seconds.
The 1-sigma cross-track error in the shadow position is
1569 km.
The sky-plane scale is
24226.9 km/arcsec.
The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 19.0 sec chord
Diameter=117.7 km assuming a 30% albedo -- 7.8 sec chord
Dynamical classification is SCATNEAR
Star training set for 472262, (2017/07/20 11:23UT) Object RA Dec mag sep mel Aldebaran 04:36:55.8 +16:32:36 0.8 33.63 7 68Omi Cet 02:20:14.1 -02:53:56 2.0 7.57 46 PPM 185207 02:57:30.3 -03:38:33 5.2 1.96 39 PPM 185068 02:49:55.4 -04:09:10 6.9 0.13 40 472262 02:50:03.3 -04:16:33 16.1 40 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=0.3 and success probability=9.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Oroville | 11:17:18 | -8.3 | CT | Up | 19.2 | 121.4 | Really Low | 11:02:18 - 11:32:18 | 356 |
| Tonasket | 11:17:17 | -8.5 | CT | Up | 19.3 | 121.3 | Really Low | 11:02:17 - 11:32:17 | 335 |
| Okanogan | 11:17:16 | -8.8 | CT | Up | 19.4 | 121.1 | Really Low | 11:02:16 - 11:32:16 | 301 |
| Brewster | 11:17:15 | -9.1 | CT | Up | 19.4 | 120.8 | Really Low | 11:02:15 - 11:32:15 | 271 |
| Manson/Chelan | 11:17:14 | -9.4 | CT | Up | 19.3 | 120.4 | Really Low | 11:02:14 - 11:32:14 | 244 |
| Entiat | 11:17:13 | -9.6 | CT | Up | 19.3 | 120.3 | Really Low | 11:02:13 - 11:32:13 | 222 |
| Wenatchee | 11:17:12 | -9.8 | CT | Up | 19.4 | 120.1 | Really Low | 11:02:12 - 11:32:12 | 196 |
| Ellensburg | 11:17:11 | -10.2 | CT | Up | 19.5 | 119.8 | Really Low | 11:02:11 - 11:32:11 | 153 |
| Pasco | 11:17:13 | -10.0 | CT | Up | 20.7 | 120.8 | Low | 11:02:13 - 11:32:13 | 116 |
| Yakima | 11:17:10 | -10.5 | CT | Up | 19.7 | 119.7 | Really Low | 11:02:10 - 11:32:10 | 114 |
| PNWRO | 11:17:13 | -10.1 | CT | Up | 21.0 | 120.9 | Low | 11:02:13 - 11:32:13 | 98 |
| Toppenish/White Swan | 11:17:10 | -10.6 | CT | Up | 19.9 | 119.8 | Really Low | 11:02:10 - 11:32:10 | 98 |
| George/Umatilla | 11:17:12 | -10.4 | CT | Up | 20.7 | 120.5 | Low | 11:02:12 - 11:32:12 | 79 |
| Goldendale | 11:17:08 | -11.2 | CT | Up | 19.9 | 119.2 | Really Low | 11:02:08 - 11:32:08 | 36 |
| The Dalles | 11:17:07 | -11.5 | CT | Up | 19.8 | 118.8 | Really Low | 11:02:07 - 11:32:07 | 8 |
| Maupin | 11:17:06 | -11.8 | CT | Up | 20.0 | 118.8 | Low | 11:02:06 - 11:32:06 | -31 |
| Niwot | 11:17:51 | -5.9 | CT | Up | 32.6 | 131.1 | Up | 11:02:51 - 11:32:51 | -70 |
| Madras/Culver | 11:17:05 | -12.2 | AT | Up | 20.3 | 118.6 | Low | 11:02:05 - 11:32:05 | -85 |
| Redmond | 11:17:04 | -12.5 | AT | Up | 20.4 | 118.4 | Low | 11:02:04 - 11:32:04 | -120 |
| Sisters | 11:17:03 | -12.7 | AT | Up | 20.1 | 118.1 | Low | 11:02:03 - 11:32:03 | -127 |
| Bend | 11:17:03 | -12.7 | AT | Up | 20.4 | 118.2 | Low | 11:02:03 - 11:32:03 | -144 |
| Oregon Observatory | 11:17:03 | -12.9 | AT | Up | 20.4 | 118.0 | Low | 11:02:03 - 11:32:03 | -163 |
| La Pine/Gilchrist | 11:17:02 | -13.1 | AT | Up | 20.5 | 117.9 | Low | 11:02:02 - 11:32:02 | -185 |
| North Lake | 11:17:03 | -13.1 | AT | Up | 21.1 | 118.3 | Low | 11:02:03 - 11:32:03 | -212 |
| Paisley | 11:17:03 | -13.3 | AT | Up | 21.6 | 118.4 | Low | 11:02:03 - 11:32:03 | -257 |
| Chiloquin | 11:16:59 | -14.1 | AT | Up | 20.7 | 117.3 | Low | 11:01:59 - 11:31:59 | -301 |
| Lakeview | 11:17:03 | -13.6 | AT | Up | 21.9 | 118.4 | Low | 11:02:03 - 11:32:03 | -302 |
| Klamath Falls | 11:16:59 | -14.3 | AT | Up | 21.0 | 117.2 | Low | 11:01:59 - 11:31:59 | -332 |
| Tulelake | 11:17:00 | -14.3 | AT | Up | 21.3 | 117.4 | Low | 11:02:00 - 11:32:00 | -352 |
| Cedarville | 11:17:02 | -13.9 | AT | Up | 22.4 | 118.3 | Low | 11:02:02 - 11:32:02 | -361 |
| Fall River/Burney | 11:16:58 | -14.9 | AT | Up | 21.7 | 117.1 | Low | 11:01:58 - 11:31:58 | -439 |
| Susanville | 11:17:00 | -15.0 | AT | Up | 22.5 | 117.5 | Low | 11:02:00 - 11:32:00 | -483 |
| Greenville | 11:16:58 | -15.3 | AT | Up | 22.5 | 117.1 | Low | 11:01:58 - 11:31:58 | -517 |
| Quincy | 11:16:58 | -15.5 | AT | Up | 22.6 | 117.1 | Low | 11:01:58 - 11:31:58 | -537 |
| Portola | 11:16:59 | -15.3 | AT | Up | 22.9 | 117.4 | Low | 11:01:59 - 11:31:59 | -538 |
| Reno | 11:17:01 | -15.1 | AT | Up | 23.5 | 117.8 | Low | 11:02:01 - 11:32:01 | -547 |
| Carson City | 11:17:00 | -15.4 | AT | Up | 23.7 | 117.7 | Low | 11:02:00 - 11:32:00 | -582 |
| Yerington | 11:17:02 | -15.1 | AT | Up | 24.2 | 118.1 | Low | 11:02:02 - 11:32:02 | -585 |
| Gardnerville | 11:17:00 | -15.5 | AT | Up | 23.8 | 117.6 | Low | 11:02:00 - 11:32:00 | -605 |
| Hawthorne | 11:17:03 | -15.1 | AT | Up | 24.8 | 118.4 | Low | 11:02:03 - 11:32:03 | -617 |
| Tonopah | 11:17:07 | -14.6 | AT | Up | 26.0 | 119.3 | Low | 11:02:07 - 11:32:07 | -624 |
| Lee Vining | 11:17:01 | -15.8 | AT | Up | 24.7 | 117.7 | Low | 11:02:01 - 11:32:01 | -686 |
| Bishop | 11:17:03 | -15.8 | AT | Up | 25.5 | 118.1 | Low | 11:02:03 - 11:32:03 | -726 |
| Beatty | 11:17:08 | -15.1 | AT | Up | 26.9 | 119.2 | Low | 11:02:08 - 11:32:08 | -727 |
| Indian Springs | 11:17:11 | -14.7 | AT | Up | 27.8 | 119.9 | Low | 11:02:11 - 11:32:11 | -728 |
| Henderson | 11:17:13 | -14.6 | AT | Up | 28.6 | 120.2 | Low | 11:02:13 - 11:32:13 | -761 |
| Patrick | 11:17:17 | -14.3 | AT | Up | 29.7 | 120.8 | Low | 11:02:17 - 11:32:17 | -790 |
| Lone Pine | 11:17:04 | -16.1 | AT | Up | 26.1 | 118.0 | Low | 11:02:04 - 11:32:04 | -793 |
| DCO | 11:17:19 | -14.0 | AT | Up | 30.4 | 121.3 | Up | 11:02:19 - 11:32:19 | -799 |
| Searchlight/Boulder City | 11:17:13 | -14.9 | AT | Up | 28.9 | 120.0 | Low | 11:02:13 - 11:32:13 | -816 |
| Kingman/Dolan Springs | 11:17:16 | -14.5 | AT | Up | 29.7 | 120.6 | Low | 11:02:16 - 11:32:16 | -818 |
| Laughlin/Bullhead City | 11:17:14 | -14.9 | AT | Up | 29.3 | 120.1 | Low | 11:02:14 - 11:32:14 | -836 |
| Mohave Valley | 11:17:14 | -15.0 | AT | Up | 29.5 | 120.0 | Low | 11:02:14 - 11:32:14 | -863 |
| Lake Havasu City | 11:17:15 | -15.1 | AT | Up | 29.8 | 120.0 | Low | 11:02:15 - 11:32:15 | -895 |
| Parker | 11:17:15 | -15.3 | AT | Up | 30.0 | 119.9 | Up | 11:02:15 - 11:32:15 | -929 |
| Blythe | 11:17:14 | -15.9 | AT | Up | 30.1 | 119.4 | Up | 11:02:14 - 11:32:14 | -991 |
| CPSLO | 11:16:54 | -18.6 | Dark | Up | 24.8 | 115.4 | Low | 11:01:54 - 11:31:54 | -995 |
| Idyllwild | 11:17:06 | -17.2 | AT | Up | 28.4 | 117.7 | Low | 11:02:06 - 11:32:06 | -1043 |
| Wildwood | 11:17:00 | -18.1 | Dark | Up | 26.9 | 116.5 | Low | 11:02:00 - 11:32:00 | -1061 |
| Calipatria | 11:17:10 | -16.8 | AT | Up | 29.6 | 118.4 | Low | 11:02:10 - 11:32:10 | -1069 |
| Yuma | 11:17:13 | -16.5 | AT | Up | 30.5 | 118.9 | Up | 11:02:13 - 11:32:13 | -1085 |
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 472262, (2017/07/20 11:23UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 33.63 7 68Omi Cet 02:19:20.8 -02:58:44 2.0 7.57 46 PPM 185207 02:56:37.4 -03:42:45 5.2 1.96 39 PPM 185068 02:49:02.6 -04:13:30 6.9 0.13 40 472262 02:49:10.5 -04:20:53 16.1 40 Positions are for J2000
Event circumstances last updated at 2016/09/01 18:14:53 UT
Marc W. Buie, Southwest Research Institute