Event between 01VN71 and star GA1220:02827135 with event index number of 168622
Geocentric closest approach at 2019/01/02 06:40:00 UTC
J2000 position of star is 06:37:02.5 +32:22:12
Equinox of date position of star is 06:38:16.8 +32:21:10
Stellar brightness G=14.2,
use SENSEUP=64
Star is 139 degrees from the moon.
Moon is 13% illuminated.
TNO apparent brightness V=23.7
[RECON map]
TNO is 30.4 AU from the Sun
and 29.4 AU from the Earth.
The TNO is moving 24.6
km/sec on the sky relative to the star, or,
4.1 arcsec/hr.
The 1-sigma error in the time of the event is 287 seconds.
The 1-sigma cross-track error in the shadow position is
2420 km.
The sky-plane scale is
21347.6 km/arcsec.
The TNO has an absolute magnitude Hv=8.9
Diameter=102.3 km assuming a 5% albedo -- 4.2 sec chord
Diameter=41.8 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is 3:2E
Star training set for 01VN71, (2019/01/02 06:40UT) Object RA Dec mag sep mel Pollux 07:46:28.6 +27:58:44 1.1 15.36 125 34Bet Aur 06:00:55.4 +44:56:50 1.9 14.53 140 PPM 071742 06:33:41.6 +32:26:23 6.0 0.97 140 PPM 071825 06:36:52.1 +32:33:37 7.9 0.36 139 PPM 071882 06:39:26.2 +32:29:25 9.2 0.28 138 PPM 071870 06:38:39.5 +32:14:18 11.5 0.14 139 01VN71 06:38:16.8 +32:21:10 14.2 138 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
3.1 sigma about the mid-time.
The median site spacing is 24.0 km
RECON observability=1.0 and success probability=16.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 06:40:58 | -58.8 | Dark | Down | 68.5 | 138.3 | Up | 06:25:58 - 06:55:58 | -1632 |
| Summerland | 06:41:00 | -58.7 | Dark | Down | 68.4 | 137.5 | Up | 06:26:00 - 06:56:00 | -1635 |
| Penticton | 06:40:59 | -59.0 | Dark | Down | 68.7 | 137.3 | Up | 06:25:59 - 06:55:59 | -1670 |
| Okanagan Falls | 06:40:59 | -59.1 | Dark | Down | 68.8 | 137.0 | Up | 06:25:59 - 06:55:59 | -1690 |
| Oliver | 06:40:59 | -59.3 | Dark | Down | 69.0 | 136.7 | Up | 06:25:59 - 06:55:59 | -1707 |
| Anarchist Mountain Observatory | 06:40:59 | -59.5 | Dark | Down | 69.2 | 136.8 | Up | 06:25:59 - 06:55:59 | -1726 |
| Oroville | 06:40:59 | -59.5 | Dark | Down | 69.2 | 136.5 | Up | 06:25:59 - 06:55:59 | -1734 |
| Tonasket | 06:40:59 | -59.7 | Dark | Down | 69.4 | 136.1 | Up | 06:25:59 - 06:55:59 | -1759 |
| Okanogan | 06:40:59 | -59.9 | Dark | Down | 69.5 | 135.2 | Up | 06:25:59 - 06:55:59 | -1795 |
| Brewster | 06:41:00 | -60.0 | Dark | Down | 69.6 | 134.2 | Up | 06:26:00 - 06:56:00 | -1823 |
| Manson/Chelan | 06:41:02 | -60.0 | Dark | Down | 69.6 | 133.1 | Up | 06:26:02 - 06:56:02 | -1844 |
| Entiat | 06:41:02 | -60.2 | Dark | Down | 69.7 | 132.5 | Up | 06:26:02 - 06:56:02 | -1868 |
| Wenatchee | 06:41:02 | -60.3 | Dark | Down | 69.8 | 131.8 | Up | 06:26:02 - 06:56:02 | -1895 |
| Ellensburg | 06:41:03 | -60.5 | Dark | Down | 70.0 | 130.6 | Up | 06:26:03 - 06:56:03 | -1938 |
| Yakima | 06:41:03 | -60.8 | Dark | Down | 70.2 | 129.7 | Up | 06:26:03 - 06:56:03 | -1982 |
| Toppenish/White Swan | 06:41:03 | -61.0 | Dark | Down | 70.5 | 129.5 | Up | 06:26:03 - 06:56:03 | -2006 |
| Pasco | 06:40:59 | -61.7 | Dark | Down | 71.2 | 131.8 | Up | 06:25:59 - 06:55:59 | -2023 |
| PNWRO | 06:40:59 | -62.0 | Dark | Down | 71.5 | 131.7 | Up | 06:25:59 - 06:55:59 | -2051 |
| George/Umatilla | 06:41:00 | -61.9 | Dark | Down | 71.3 | 130.6 | Up | 06:26:00 - 06:56:00 | -2059 |
| Goldendale | 06:41:04 | -61.2 | Dark | Down | 70.6 | 127.5 | Up | 06:26:04 - 06:56:04 | -2064 |
| The Dalles | 06:41:06 | -61.2 | Dark | Down | 70.5 | 126.3 | Up | 06:26:06 - 06:56:06 | -2087 |
| Maupin | 06:41:06 | -61.6 | Dark | Down | 70.8 | 125.5 | Up | 06:26:06 - 06:56:06 | -2133 |
| Madras/Culver | 06:41:06 | -61.9 | Dark | Down | 71.1 | 124.2 | Up | 06:26:06 - 06:56:06 | -2192 |
| Sisters | 06:41:07 | -61.9 | Dark | Down | 71.0 | 122.5 | Up | 06:26:07 - 06:56:07 | -2227 |
| Redmond | 06:41:06 | -62.1 | Dark | Down | 71.3 | 123.2 | Up | 06:26:06 - 06:56:06 | -2231 |
| Bend | 06:41:07 | -62.2 | Dark | Down | 71.3 | 122.4 | Up | 06:26:07 - 06:56:07 | -2254 |
| Oregon Observatory | 06:41:07 | -62.3 | Dark | Down | 71.3 | 121.7 | Up | 06:26:07 - 06:56:07 | -2272 |
| La Pine/Gilchrist | 06:41:07 | -62.4 | Dark | Down | 71.4 | 121.1 | Up | 06:26:07 - 06:56:07 | -2294 |
| North Lake | 06:41:06 | -63.0 | Dark | Down | 72.0 | 121.1 | Up | 06:26:06 - 06:56:06 | -2344 |
| Paisley | 06:41:05 | -63.5 | Dark | Down | 72.5 | 120.2 | Up | 06:26:05 - 06:56:05 | -2406 |
| Chiloquin | 06:41:09 | -62.9 | Dark | Down | 71.7 | 117.6 | Up | 06:26:09 - 06:56:09 | -2414 |
| Klamath Falls | 06:41:09 | -63.2 | Dark | Down | 71.9 | 116.8 | Up | 06:26:09 - 06:56:09 | -2452 |
| Lakeview | 06:41:05 | -64.0 | Dark | Down | 72.9 | 119.2 | Up | 06:26:05 - 06:56:05 | -2462 |
| Tulelake | 06:41:09 | -63.5 | Dark | Down | 72.3 | 116.6 | Up | 06:26:09 - 06:56:09 | -2483 |
| Cedarville | 06:41:04 | -64.5 | Dark | Down | 73.3 | 117.6 | Up | 06:26:04 - 06:56:04 | -2535 |
| Fall River/Burney | 06:41:08 | -64.1 | Dark | Down | 72.7 | 114.1 | Up | 06:26:08 - 06:56:08 | -2583 |
| Susanville | 06:41:06 | -64.9 | Dark | Down | 73.5 | 113.4 | Up | 06:26:06 - 06:56:06 | -2655 |
| Niwot | 06:40:14 | -72.1 | Dark | Down | 82.0 | 163.2 | Up | 06:25:14 - 06:55:14 | -2659 |
| Greenville | 06:41:07 | -64.9 | Dark | Down | 73.4 | 112.1 | Up | 06:26:07 - 06:56:07 | -2684 |
| Gimple | 06:41:07 | -65.0 | Dark | Down | 73.4 | 112.2 | Up | 06:26:07 - 06:56:07 | -2685 |
| Quincy | 06:41:08 | -65.0 | Dark | Down | 73.4 | 111.5 | Up | 06:26:08 - 06:56:08 | -2707 |
| Portola | 06:41:06 | -65.4 | Dark | Down | 73.8 | 111.8 | Up | 06:26:06 - 06:56:06 | -2722 |
| Reno | 06:41:04 | -66.0 | Dark | Down | 74.4 | 112.0 | Up | 06:26:04 - 06:56:04 | -2754 |
| Carson City | 06:41:04 | -66.2 | Dark | Down | 74.5 | 110.8 | Up | 06:26:04 - 06:56:04 | -2794 |
| Yerington | 06:41:02 | -66.7 | Dark | Down | 75.1 | 111.2 | Up | 06:26:02 - 06:56:02 | -2817 |
| Gardnerville | 06:41:04 | -66.4 | Dark | Down | 74.6 | 110.1 | Up | 06:26:04 - 06:56:04 | -2821 |
| Hawthorne | 06:41:00 | -67.3 | Dark | Down | 75.6 | 110.4 | Up | 06:26:00 - 06:56:00 | -2870 |
| Tonopah | 06:40:55 | -68.5 | Dark | Down | 76.8 | 111.1 | Up | 06:25:55 - 06:55:55 | -2925 |
| Lee Vining | 06:41:02 | -67.3 | Dark | Down | 75.4 | 107.6 | Up | 06:26:02 - 06:56:02 | -2931 |
| Bishop | 06:40:59 | -68.2 | Dark | Down | 76.1 | 106.4 | Up | 06:25:59 - 06:55:59 | -2999 |
| Beatty | 06:40:54 | -69.5 | Dark | Down | 77.5 | 107.1 | Up | 06:25:54 - 06:55:54 | -3053 |
| Lone Pine | 06:40:58 | -68.8 | Dark | Down | 76.6 | 103.9 | Up | 06:25:58 - 06:55:58 | -3084 |
| Indian Springs | 06:40:50 | -70.3 | Dark | Down | 78.4 | 107.4 | Up | 06:25:50 - 06:55:50 | -3090 |
| Henderson | 06:40:48 | -71.1 | Dark | Down | 79.1 | 106.1 | Up | 06:25:48 - 06:55:48 | -3150 |
| Searchlight/Boulder City | 06:40:48 | -71.5 | Dark | Down | 79.3 | 103.3 | Up | 06:25:48 - 06:55:48 | -3213 |
| Patrick | 06:40:44 | -72.2 | Dark | Down | 80.1 | 104.7 | Up | 06:25:44 - 06:55:44 | -3218 |
| CPSLO | 06:41:08 | -67.7 | Dark | Down | 74.8 | 96.0 | Up | 06:26:08 - 06:56:08 | -3219 |
| Kingman/Dolan Springs | 06:40:44 | -72.2 | Dark | Down | 80.0 | 103.2 | Up | 06:25:44 - 06:55:44 | -3243 |
| Laughlin/Bullhead City | 06:40:46 | -71.9 | Dark | Down | 79.6 | 102.2 | Up | 06:25:46 - 06:55:46 | -3246 |
| DCO | 06:40:41 | -72.8 | Dark | Down | 80.8 | 104.2 | Up | 06:25:41 - 06:55:41 | -3251 |
| Mohave Valley | 06:40:46 | -72.1 | Dark | Down | 79.7 | 100.8 | Up | 06:25:46 - 06:55:46 | -3276 |
| Lake Havasu City | 06:40:45 | -72.5 | Dark | Down | 80.0 | 98.9 | Up | 06:25:45 - 06:55:45 | -3321 |
| Parker | 06:40:45 | -72.7 | Dark | Down | 80.0 | 97.0 | Up | 06:25:45 - 06:55:45 | -3359 |
| Wildwood | 06:41:01 | -69.8 | Dark | Down | 76.5 | 92.9 | Up | 06:26:01 - 06:56:01 | -3361 |
| Idyllwild | 06:40:54 | -71.3 | Dark | Down | 78.1 | 92.7 | Up | 06:25:54 - 06:55:54 | -3405 |
| Blythe | 06:40:47 | -72.8 | Dark | Down | 79.8 | 93.7 | Up | 06:25:47 - 06:55:47 | -3418 |
| Calipatria | 06:40:50 | -72.4 | Dark | Down | 79.1 | 90.4 | Up | 06:25:50 - 06:55:50 | -3473 |
| Yuma | 06:40:46 | -73.3 | Dark | Down | 79.8 | 88.6 | Up | 06:25:46 - 06:55:46 | -3521 |
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 01VN71, (2019/01/02 06:40UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 15.36 125 34Bet Aur 05:59:31.6 +44:56:51 1.9 14.53 140 PPM 071742 06:32:27.2 +32:27:18 6.0 0.97 140 PPM 071825 06:35:37.7 +32:34:37 7.9 0.36 139 PPM 071882 06:38:11.8 +32:30:30 9.2 0.28 138 PPM 071870 06:37:25.2 +32:15:21 11.5 0.14 139 01VN71 06:37:02.5 +32:22:12 14.2 139 Positions are for J2000
Event circumstances last updated at 2018/12/27 19:30:41 UT
Marc W. Buie, Southwest Research Institute