Event between (523730) 14OH394 and star UC4-374-173409 with event index number of 306356
Geocentric closest approach at 2019/06/21 09:41:32 UTC
J2000 position of star is 20:40:23.6 -15:16:42
Equinox of date position of star is 20:41:26.7 -15:12:39
Stellar brightness R=14.6,
use SENSEUP=128
Star is 9 degrees from the moon.
Moon is 85% illuminated.
TNO apparent brightness V=22.3
[RECON map]
TNO is 41.1 AU from the Sun
and 40.3 AU from the Earth.
The TNO is moving 18.0
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 118 seconds.
The 1-sigma cross-track error in the shadow position is
1748 km.
The sky-plane scale is
29233.1 km/arcsec.
The TNO has an absolute magnitude Hv=6.1
Diameter=363.1 km assuming a 5% albedo -- 20.2 sec chord
Diameter=148.2 km assuming a 30% albedo -- 8.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 523730, (2019/06/21 09:42UT) Object RA Dec mag sep mel Fomalhaut 22:58:43.3 -29:31:07 1.2 34.63 26 38Zet Sgr 19:03:50.9 -29:51:02 2.7 26.78 33 PPM 237762 20:41:38.1 -16:03:13 5.6 0.85 9 PPM 237686 20:38:26.6 -15:04:43 6.8 0.74 10 PPM 237754 20:41:05.6 -15:20:33 9.9 0.16 9 523730 20:41:28.9 -15:12:30 14.6 9 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 14.5 km
RECON observability=0.9 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) |
| Summerland | 09:41:41 | -13.4 | AT | Up | 23.5 | 164.1 | Low | 09:31:19 - 09:52:03 | 14492 |
| Kelowna | 09:41:39 | -13.2 | AT | Up | 23.5 | 164.4 | Low | 09:31:17 - 09:52:01 | 14492 |
| Penticton | 09:41:40 | -13.6 | AT | Up | 23.9 | 164.2 | Low | 09:31:18 - 09:52:02 | 14477 |
| Okanagan Falls | 09:41:42 | -13.8 | AT | Up | 24.0 | 164.2 | Low | 09:31:20 - 09:52:04 | 14469 |
| Oliver | 09:41:41 | -13.9 | AT | Up | 24.2 | 164.2 | Low | 09:31:19 - 09:52:03 | 14461 |
| Anarchist Mountain Observatory | 09:41:40 | -14.0 | AT | Up | 24.4 | 164.4 | Low | 09:31:18 - 09:52:02 | 14452 |
| Oroville | 09:41:40 | -14.1 | AT | Up | 24.5 | 164.3 | Low | 09:31:18 - 09:52:02 | 14449 |
| Tonasket | 09:41:41 | -14.3 | AT | Up | 24.7 | 164.3 | Low | 09:31:19 - 09:52:03 | 14439 |
| Okanogan | 09:41:42 | -14.7 | AT | Up | 25.0 | 164.1 | Low | 09:31:20 - 09:52:04 | 14424 |
| Brewster | 09:41:44 | -15.0 | AT | Up | 25.2 | 163.8 | Low | 09:31:22 - 09:52:06 | 14413 |
| Manson/Chelan | 09:41:46 | -15.3 | AT | Up | 25.3 | 163.4 | Low | 09:31:24 - 09:52:08 | 14406 |
| Entiat | 09:41:46 | -15.5 | AT | Up | 25.5 | 163.3 | Low | 09:31:24 - 09:52:08 | 14396 |
| Wenatchee | 09:41:47 | -15.7 | AT | Up | 25.8 | 163.2 | Low | 09:31:25 - 09:52:09 | 14385 |
| Ellensburg | 09:41:49 | -16.2 | AT | Up | 26.1 | 162.9 | Low | 09:31:27 - 09:52:11 | 14366 |
| Yakima | 09:41:49 | -16.6 | AT | Up | 26.5 | 162.8 | Low | 09:31:27 - 09:52:11 | 14346 |
| Toppenish/White Swan | 09:41:48 | -16.7 | AT | Up | 26.7 | 163.0 | Low | 09:31:26 - 09:52:10 | 14335 |
| Pasco | 09:41:45 | -16.5 | AT | Up | 27.1 | 164.3 | Low | 09:31:23 - 09:52:07 | 14320 |
| Goldendale | 09:41:51 | -17.3 | AT | Up | 27.2 | 162.4 | Low | 09:31:29 - 09:52:13 | 14310 |
| PNWRO | 09:41:43 | -16.6 | AT | Up | 27.4 | 164.5 | Low | 09:31:21 - 09:52:05 | 14306 |
| George/Umatilla | 09:41:46 | -16.8 | AT | Up | 27.4 | 164.0 | Low | 09:31:24 - 09:52:08 | 14305 |
| The Dalles | 09:41:54 | -17.6 | AT | Up | 27.3 | 162.0 | Low | 09:31:32 - 09:52:16 | 14301 |
| Maupin | 09:41:54 | -18.0 | AT | Up | 27.7 | 162.1 | Low | 09:31:32 - 09:52:16 | 14279 |
| Madras/Culver | 09:41:55 | -18.5 | Dark | Up | 28.3 | 161.9 | Low | 09:31:33 - 09:52:17 | 14251 |
| Sisters | 09:41:58 | -18.9 | Dark | Up | 28.5 | 161.4 | Low | 09:31:36 - 09:52:20 | 14236 |
| Redmond | 09:41:56 | -18.8 | Dark | Up | 28.6 | 161.8 | Low | 09:31:34 - 09:52:18 | 14232 |
| Bend | 09:41:56 | -19.1 | Dark | Up | 28.8 | 161.7 | Low | 09:31:34 - 09:52:18 | 14222 |
| Oregon Observatory | 09:41:58 | -19.3 | Dark | Up | 28.9 | 161.5 | Low | 09:31:36 - 09:52:20 | 14213 |
| La Pine/Gilchrist | 09:41:57 | -19.5 | Dark | Up | 29.1 | 161.4 | Low | 09:31:35 - 09:52:19 | 14203 |
| North Lake | 09:41:56 | -19.7 | Dark | Up | 29.6 | 162.0 | Low | 09:31:34 - 09:52:18 | 14175 |
| Chiloquin | 09:42:01 | -20.6 | Dark | Up | 30.0 | 160.8 | Up | 09:31:39 - 09:52:23 | 14144 |
| Paisley | 09:41:55 | -20.1 | Dark | Up | 30.2 | 162.2 | Up | 09:31:33 - 09:52:17 | 14142 |
| Klamath Falls | 09:42:02 | -20.9 | Dark | Up | 30.4 | 160.8 | Up | 09:31:40 - 09:52:24 | 14124 |
| Lakeview | 09:41:55 | -20.5 | Dark | Up | 30.7 | 162.4 | Up | 09:31:33 - 09:52:17 | 14113 |
| Tulelake | 09:42:00 | -21.1 | Dark | Up | 30.7 | 161.1 | Up | 09:31:38 - 09:52:22 | 14107 |
| Cedarville | 09:41:55 | -21.1 | Dark | Up | 31.4 | 162.4 | Up | 09:31:33 - 09:52:17 | 14074 |
| Fall River/Burney | 09:42:02 | -21.9 | Dark | Up | 31.6 | 161.0 | Up | 09:31:40 - 09:52:24 | 14054 |
| Susanville | 09:42:00 | -22.2 | Dark | Up | 32.4 | 161.7 | Up | 09:31:38 - 09:52:22 | 14012 |
| Greenville | 09:42:00 | -22.6 | Dark | Up | 32.6 | 161.3 | Up | 09:31:38 - 09:52:22 | 13998 |
| Gimple | 09:42:00 | -22.5 | Dark | Up | 32.6 | 161.4 | Up | 09:31:38 - 09:52:22 | 13997 |
| Quincy | 09:42:02 | -22.7 | Dark | Up | 32.8 | 161.3 | Up | 09:31:40 - 09:52:24 | 13986 |
| Portola | 09:42:01 | -22.7 | Dark | Up | 33.0 | 161.8 | Up | 09:31:39 - 09:52:23 | 13975 |
| Reno | 09:41:59 | -22.7 | Dark | Up | 33.4 | 162.5 | Up | 09:31:37 - 09:52:21 | 13954 |
| Carson City | 09:41:58 | -23.1 | Dark | Up | 33.7 | 162.4 | Up | 09:31:36 - 09:52:20 | 13932 |
| Gardnerville | 09:41:58 | -23.3 | Dark | Up | 34.0 | 162.4 | Up | 09:31:36 - 09:52:20 | 13916 |
| Yerington | 09:41:55 | -23.0 | Dark | Up | 34.1 | 163.1 | Up | 09:31:33 - 09:52:17 | 13915 |
| Hawthorne | 09:41:54 | -23.3 | Dark | Up | 34.6 | 163.6 | Up | 09:31:32 - 09:52:16 | 13882 |
| Lee Vining | 09:41:56 | -23.9 | Dark | Up | 35.1 | 162.9 | Up | 09:31:34 - 09:52:18 | 13850 |
| Tonopah | 09:41:47 | -23.2 | Dark | Up | 35.4 | 165.1 | Up | 09:31:25 - 09:52:09 | 13840 |
| Niwot | 09:40:51 | -16.5 | AT | Up | 34.6 | 179.1 | Up | 09:30:29 - 09:51:13 | 13835 |
| Bishop | 09:41:55 | -24.2 | Dark | Up | 35.8 | 163.6 | Up | 09:31:33 - 09:52:17 | 13806 |
| Beatty | 09:41:47 | -24.0 | Dark | Up | 36.6 | 165.4 | Up | 09:31:25 - 09:52:09 | 13761 |
| Lone Pine | 09:41:55 | -24.8 | Dark | Up | 36.6 | 163.9 | Up | 09:31:33 - 09:52:17 | 13753 |
| Indian Springs | 09:41:43 | -23.9 | Dark | Up | 37.1 | 166.6 | Up | 09:31:21 - 09:52:05 | 13730 |
| CPSLO | 09:42:07 | -26.9 | Dark | Up | 37.2 | 160.6 | Up | 09:31:45 - 09:52:29 | 13688 |
| Henderson | 09:41:40 | -24.1 | Dark | Up | 37.8 | 167.3 | Up | 09:31:18 - 09:52:02 | 13688 |
| Searchlight/Boulder City | 09:41:41 | -24.6 | Dark | Up | 38.3 | 167.3 | Up | 09:31:19 - 09:52:03 | 13648 |
| Patrick | 09:41:37 | -24.2 | Dark | Up | 38.6 | 168.6 | Up | 09:31:15 - 09:51:59 | 13634 |
| Laughlin/Bullhead City | 09:41:40 | -24.7 | Dark | Up | 38.7 | 167.7 | Up | 09:31:18 - 09:52:02 | 13624 |
| Kingman/Dolan Springs | 09:41:37 | -24.5 | Dark | Up | 38.7 | 168.3 | Up | 09:31:15 - 09:51:59 | 13620 |
| Mohave Valley | 09:41:41 | -24.9 | Dark | Up | 38.9 | 167.6 | Up | 09:31:19 - 09:52:03 | 13606 |
| DCO | 09:41:33 | -24.2 | Dark | Up | 39.0 | 169.4 | Up | 09:31:11 - 09:51:55 | 13605 |
| Wildwood | 09:42:01 | -27.2 | Dark | Up | 38.9 | 162.7 | Up | 09:31:39 - 09:52:23 | 13589 |
| Lake Havasu City | 09:41:40 | -25.2 | Dark | Up | 39.4 | 167.9 | Up | 09:31:18 - 09:52:02 | 13575 |
| Parker | 09:41:40 | -25.4 | Dark | Up | 39.7 | 167.8 | Up | 09:31:18 - 09:52:02 | 13551 |
| Idyllwild | 09:41:52 | -26.8 | Dark | Up | 39.7 | 164.9 | Up | 09:31:30 - 09:52:14 | 13546 |
| Blythe | 09:41:42 | -26.0 | Dark | Up | 40.2 | 167.4 | Up | 09:31:20 - 09:52:04 | 13517 |
| Calipatria | 09:41:46 | -26.8 | Dark | Up | 40.5 | 166.2 | Up | 09:31:24 - 09:52:08 | 13492 |
| Yuma | 09:41:44 | -26.8 | Dark | Up | 41.1 | 167.2 | Up | 09:31:22 - 09:52:06 | 13452 |
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 523730, (2019/06/21 09:42UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.5 -29:37:23 1.2 34.63 26 38Zet Sgr 19:02:36.7 -29:52:49 2.7 26.78 33 PPM 237762 20:40:32.5 -16:07:25 5.6 0.85 9 PPM 237686 20:37:21.3 -15:08:51 6.8 0.74 10 PPM 237754 20:40:00.3 -15:24:44 9.9 0.16 9 523730 20:40:23.6 -15:16:42 14.6 9 Positions are for J2000
Event circumstances last updated at 2018/10/24 21:40:06 UT
Marc W. Buie, Southwest Research Institute