Event between 07LJ38 and star UC4-472-062780 with event index number of 102276
Geocentric closest approach at 2017/06/10 06:43:52 UTC
J2000 position of star is 17:32:53.2 +04:16:22
Equinox of date position of star is 17:33:44.9 +04:15:41
Stellar brightness R=16.0,
use SENSEUP=128
Star is 24 degrees from the moon.
Moon is 99% illuminated.
TNO apparent brightness V=23.2
[RECON map]
TNO is 38.4 AU from the Sun
and 37.5 AU from the Earth.
The TNO is moving 23.7
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 422 seconds.
The 1-sigma cross-track error in the shadow position is
2179 km.
The sky-plane scale is
27188.4 km/arcsec.
The TNO has an absolute magnitude Hv=7.3
Diameter=211.8 km assuming a 5% albedo -- 8.9 sec chord
Diameter=86.5 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is SCATNEAR
Star training set for 07LJ38, (2017/06/10 06:44UT) Object RA Dec mag sep mel Antares 16:30:28.8 -26:28:09 0.9 34.33 20 60Bet Oph 17:44:20.1 +04:33:40 2.8 2.65 24 49Sig Oph 17:27:22.9 +04:07:35 4.3 1.59 24 PPM 164232 17:35:30.5 +04:05:19 8.5 0.47 23 PPM 164129 17:31:54.5 +04:11:48 9.0 0.46 24 PPM 164182 17:33:55.9 +04:11:05 11.3 0.09 24 07LJ38 17:33:45.1 +04:15:41 16.0 24 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
2.1 sigma about the mid-time.
The median site spacing is 19.4 km
RECON observability=1.0 and success probability=5.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Oroville | 06:45:02 | -16.3 | AT | Up | 41.4 | 149.3 | Up | 06:30:02 - 07:00:02 | 5715 |
| Tonasket | 06:45:02 | -16.5 | AT | Up | 41.6 | 149.2 | Up | 06:30:02 - 07:00:02 | 5696 |
| Okanogan | 06:45:03 | -16.8 | AT | Up | 41.8 | 148.9 | Up | 06:30:03 - 07:00:03 | 5670 |
| Brewster | 06:45:04 | -17.0 | AT | Up | 42.0 | 148.5 | Up | 06:30:04 - 07:00:04 | 5648 |
| Manson/Chelan | 06:45:05 | -17.1 | AT | Up | 42.0 | 147.9 | Up | 06:30:05 - 07:00:05 | 5632 |
| Entiat | 06:45:06 | -17.3 | AT | Up | 42.2 | 147.7 | Up | 06:30:06 - 07:00:06 | 5615 |
| Wenatchee | 06:45:07 | -17.5 | AT | Up | 42.4 | 147.5 | Up | 06:30:07 - 07:00:07 | 5594 |
| Ellensburg | 06:45:07 | -17.9 | AT | Up | 42.6 | 147.0 | Up | 06:30:07 - 07:00:07 | 5561 |
| Yakima | 06:45:08 | -18.3 | Dark | Up | 43.0 | 146.8 | Up | 06:30:08 - 07:00:08 | 5528 |
| Toppenish/White Swan | 06:45:08 | -18.5 | Dark | Up | 43.2 | 146.9 | Up | 06:30:08 - 07:00:08 | 5510 |
| Pasco | 06:45:04 | -18.9 | Dark | Up | 43.8 | 148.5 | Up | 06:30:04 - 07:00:04 | 5498 |
| PNWRO | 06:45:04 | -19.2 | Dark | Up | 44.1 | 148.6 | Up | 06:30:04 - 07:00:04 | 5477 |
| George/Umatilla | 06:45:05 | -19.2 | Dark | Up | 44.0 | 148.0 | Up | 06:30:05 - 07:00:05 | 5470 |
| Goldendale | 06:45:10 | -18.9 | Dark | Up | 43.5 | 146.1 | Up | 06:30:10 - 07:00:10 | 5465 |
| The Dalles | 06:45:11 | -19.1 | Dark | Up | 43.6 | 145.5 | Up | 06:30:11 - 07:00:11 | 5446 |
| Maupin | 06:45:12 | -19.5 | Dark | Up | 44.0 | 145.4 | Up | 06:30:12 - 07:00:12 | 5411 |
| Madras/Culver | 06:45:12 | -20.0 | Dark | Up | 44.4 | 145.1 | Up | 06:30:12 - 07:00:12 | 5365 |
| Sisters | 06:45:14 | -20.2 | Dark | Up | 44.5 | 144.3 | Up | 06:30:14 - 07:00:14 | 5338 |
| Redmond | 06:45:13 | -20.3 | Dark | Up | 44.7 | 144.8 | Up | 06:30:13 - 07:00:13 | 5335 |
| Bend | 06:45:14 | -20.5 | Dark | Up | 44.8 | 144.5 | Up | 06:30:14 - 07:00:14 | 5317 |
| Oregon Observatory | 06:45:14 | -20.6 | Dark | Up | 44.9 | 144.2 | Up | 06:30:14 - 07:00:14 | 5303 |
| La Pine/Gilchrist | 06:45:15 | -20.8 | Dark | Up | 45.0 | 144.0 | Up | 06:30:15 - 07:00:15 | 5285 |
| North Lake | 06:45:14 | -21.4 | Dark | Up | 45.6 | 144.6 | Up | 06:30:14 - 07:00:14 | 5247 |
| Paisley | 06:45:13 | -22.0 | Dark | Up | 46.2 | 144.7 | Up | 06:30:13 - 07:00:13 | 5199 |
| Chiloquin | 06:45:17 | -21.8 | Dark | Up | 45.8 | 142.9 | Up | 06:30:17 - 07:00:17 | 5190 |
| Klamath Falls | 06:45:17 | -22.1 | Dark | Up | 46.1 | 142.8 | Up | 06:30:17 - 07:00:17 | 5160 |
| Lakeview | 06:45:13 | -22.5 | Dark | Up | 46.7 | 144.6 | Up | 06:30:13 - 07:00:13 | 5154 |
| Tulelake | 06:45:17 | -22.4 | Dark | Up | 46.4 | 143.0 | Up | 06:30:17 - 07:00:17 | 5136 |
| Cedarville | 06:45:13 | -23.2 | Dark | Up | 47.3 | 144.5 | Up | 06:30:13 - 07:00:13 | 5096 |
| Fall River/Burney | 06:45:17 | -23.3 | Dark | Up | 47.2 | 142.6 | Up | 06:30:17 - 07:00:17 | 5055 |
| Susanville | 06:45:16 | -24.1 | Dark | Up | 48.0 | 143.1 | Up | 06:30:16 - 07:00:16 | 4998 |
| Greenville | 06:45:17 | -24.3 | Dark | Up | 48.1 | 142.5 | Up | 06:30:17 - 07:00:17 | 4973 |
| Gimple | 06:45:17 | -24.3 | Dark | Up | 48.1 | 142.7 | Up | 06:30:17 - 07:00:17 | 4973 |
| Niwot | 06:44:24 | -26.8 | Dark | Up | 53.4 | 165.8 | Up | 06:29:24 - 06:59:24 | 4959 |
| Quincy | 06:45:17 | -24.5 | Dark | Up | 48.3 | 142.4 | Up | 06:30:17 - 07:00:17 | 4955 |
| Portola | 06:45:16 | -24.7 | Dark | Up | 48.6 | 143.0 | Up | 06:30:16 - 07:00:16 | 4943 |
| Reno | 06:45:14 | -25.1 | Dark | Up | 49.1 | 143.6 | Up | 06:30:14 - 07:00:14 | 4918 |
| Carson City | 06:45:15 | -25.5 | Dark | Up | 49.4 | 143.4 | Up | 06:30:15 - 07:00:15 | 4886 |
| Yerington | 06:45:13 | -25.8 | Dark | Up | 49.8 | 144.1 | Up | 06:30:13 - 07:00:13 | 4867 |
| Gardnerville | 06:45:15 | -25.7 | Dark | Up | 49.6 | 143.3 | Up | 06:30:15 - 07:00:15 | 4863 |
| Hawthorne | 06:45:11 | -26.4 | Dark | Up | 50.5 | 144.5 | Up | 06:30:11 - 07:00:11 | 4824 |
| Tonopah | 06:45:07 | -27.1 | Dark | Up | 51.5 | 146.2 | Up | 06:30:07 - 07:00:07 | 4779 |
| Lee Vining | 06:45:14 | -26.8 | Dark | Up | 50.7 | 143.5 | Up | 06:30:14 - 07:00:14 | 4773 |
| Bishop | 06:45:12 | -27.5 | Dark | Up | 51.5 | 144.0 | Up | 06:30:12 - 07:00:12 | 4716 |
| Beatty | 06:45:07 | -28.4 | Dark | Up | 52.6 | 146.0 | Up | 06:30:07 - 07:00:07 | 4671 |
| Lone Pine | 06:45:11 | -28.3 | Dark | Up | 52.3 | 143.9 | Up | 06:30:11 - 07:00:11 | 4644 |
| Indian Springs | 06:45:03 | -28.9 | Dark | Up | 53.4 | 147.4 | Up | 06:30:03 - 07:00:03 | 4639 |
| Henderson | 06:45:01 | -29.6 | Dark | Up | 54.1 | 148.0 | Up | 06:30:01 - 07:00:01 | 4587 |
| Searchlight/Boulder City | 06:45:01 | -30.1 | Dark | Up | 54.6 | 147.7 | Up | 06:30:01 - 07:00:01 | 4533 |
| Patrick | 06:44:57 | -30.4 | Dark | Up | 55.1 | 149.3 | Up | 06:29:57 - 06:59:57 | 4527 |
| CPSLO | 06:45:21 | -28.9 | Dark | Up | 52.0 | 139.3 | Up | 06:30:21 - 07:00:21 | 4525 |
| Kingman/Dolan Springs | 06:44:58 | -30.6 | Dark | Up | 55.2 | 148.8 | Up | 06:29:58 - 06:59:58 | 4506 |
| Laughlin/Bullhead City | 06:45:00 | -30.5 | Dark | Up | 55.0 | 148.0 | Up | 06:30:00 - 07:00:00 | 4504 |
| DCO | 06:44:55 | -30.8 | Dark | Up | 55.7 | 150.2 | Up | 06:29:55 - 06:59:55 | 4498 |
| Mohave Valley | 06:45:00 | -30.7 | Dark | Up | 55.3 | 147.8 | Up | 06:30:00 - 07:00:00 | 4478 |
| Lake Havasu City | 06:44:59 | -31.2 | Dark | Up | 55.7 | 147.9 | Up | 06:29:59 - 06:59:59 | 4440 |
| Wildwood | 06:45:16 | -30.6 | Dark | Up | 54.0 | 141.2 | Up | 06:30:16 - 07:00:16 | 4407 |
| Parker | 06:45:00 | -31.5 | Dark | Up | 56.0 | 147.7 | Up | 06:30:00 - 07:00:00 | 4406 |
| Idyllwild | 06:45:09 | -31.4 | Dark | Up | 55.2 | 143.6 | Up | 06:30:09 - 07:00:09 | 4370 |
| Blythe | 06:45:01 | -32.0 | Dark | Up | 56.3 | 146.8 | Up | 06:30:01 - 07:00:01 | 4355 |
| Calipatria | 06:45:05 | -32.3 | Dark | Up | 56.3 | 144.9 | Up | 06:30:05 - 07:00:05 | 4309 |
| Yuma | 06:45:02 | -32.9 | Dark | Up | 57.1 | 145.9 | Up | 06:30:02 - 07:00:02 | 4266 |
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 07LJ38, (2017/06/10 06:44UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 34.33 20 60Bet Oph 17:43:28.3 +04:34:05 2.8 2.65 24 49Sig Oph 17:26:30.9 +04:08:25 4.3 1.59 24 PPM 164232 17:34:38.5 +04:05:57 8.5 0.47 23 PPM 164129 17:31:02.5 +04:12:32 9.0 0.46 24 PPM 164182 17:33:04.0 +04:11:45 11.3 0.09 24 07LJ38 17:32:53.2 +04:16:22 16.0 24 Positions are for J2000
Event circumstances last updated at 2017/05/15 17:59:38 UT
Marc W. Buie, Southwest Research Institute