Event between 04KG19 and star GA0660:07370777 with event index number of 195220
Geocentric closest approach at 2019/06/08 04:39:50 UTC
J2000 position of star is 16:25:16.1 -22:25:31
Equinox of date position of star is 16:26:25.6 -22:28:07
Stellar brightness G=13.6,
use SENSEUP=64
Star is 108 degrees from the moon.
Moon is 27% illuminated.
TNO apparent brightness V=23.9
[RECON map]
TNO is 42.5 AU from the Sun
and 41.5 AU from the Earth.
The TNO is moving 24.4
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 418 seconds.
The 1-sigma cross-track error in the shadow position is
2209 km.
The sky-plane scale is
30108.2 km/arcsec.
The TNO has an absolute magnitude Hv=7.6
Diameter=182.0 km assuming a 5% albedo -- 7.5 sec chord
Diameter=74.3 km assuming a 30% albedo -- 3.0 sec chord
Dynamical classification is CLASSICAL
Star training set for 04KG19, (2019/06/08 04:40UT) Object RA Dec mag sep mel Antares 16:30:36.1 -26:28:25 0.9 4.12 110 8Bet1Sco 16:06:34.2 -19:51:26 2.6 5.31 103 19Omi Sco 16:21:48.6 -24:12:53 4.0 2.04 108 PPM 265502 16:26:03.0 -22:16:44 7.9 0.21 108 04KG19 16:26:25.6 -22:28:07 13.6 109 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
2.2 sigma about the mid-time.
The median site spacing is 10.9 km
RECON observability=0.3 and success probability=0.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 04:42:11 | -5.5 | CT | Up | 9.9 | 143.9 | Really Low | 04:27:11 - 04:57:11 | 10709 |
| Summerland | 04:42:13 | -5.6 | CT | Up | 10.0 | 143.7 | Really Low | 04:27:13 - 04:57:13 | 10687 |
| Penticton | 04:42:13 | -5.7 | CT | Up | 10.1 | 143.7 | Really Low | 04:27:13 - 04:57:13 | 10687 |
| Okanagan Falls | 04:42:14 | -5.8 | CT | Up | 10.3 | 143.7 | Really Low | 04:27:14 - 04:57:14 | 10677 |
| Oliver | 04:42:14 | -6.0 | CT | Up | 10.4 | 143.7 | Really Low | 04:27:14 - 04:57:14 | 10669 |
| Anarchist Mountain Observatory | 04:42:13 | -6.2 | NT | Up | 10.6 | 143.9 | Really Low | 04:27:13 - 04:57:13 | 10666 |
| Oroville | 04:42:14 | -6.2 | NT | Up | 10.7 | 143.8 | Really Low | 04:27:14 - 04:57:14 | 10660 |
| Tonasket | 04:42:15 | -6.4 | NT | Up | 10.8 | 143.8 | Really Low | 04:27:15 - 04:57:15 | 10649 |
| Okanogan | 04:42:15 | -6.5 | NT | Up | 11.1 | 143.6 | Really Low | 04:27:15 - 04:57:15 | 10627 |
| Brewster | 04:42:16 | -6.6 | NT | Up | 11.2 | 143.4 | Really Low | 04:27:16 - 04:57:16 | 10608 |
| Manson/Chelan | 04:42:17 | -6.6 | NT | Up | 11.2 | 143.1 | Really Low | 04:27:17 - 04:57:17 | 10587 |
| Entiat | 04:42:17 | -6.7 | NT | Up | 11.4 | 143.0 | Really Low | 04:27:17 - 04:57:17 | 10573 |
| Niwot | 04:41:49 | -19.4 | Dark | Up | 23.3 | 155.1 | Low | 04:26:49 - 04:56:49 | 10561 |
| Wenatchee | 04:42:18 | -6.9 | NT | Up | 11.5 | 142.9 | Really Low | 04:27:18 - 04:57:18 | 10557 |
| SwRI | 04:41:48 | -19.4 | Dark | Up | 23.4 | 155.0 | Low | 04:26:48 - 04:56:48 | 10552 |
| Ellensburg | 04:42:20 | -7.1 | NT | Up | 11.8 | 142.6 | Really Low | 04:27:20 - 04:57:20 | 10529 |
| Pasco | 04:42:16 | -8.3 | NT | Up | 12.9 | 143.7 | Really Low | 04:27:16 - 04:57:16 | 10528 |
| PNWRO | 04:42:18 | -8.6 | NT | Up | 13.2 | 143.9 | Really Low | 04:27:18 - 04:57:18 | 10521 |
| Yakima | 04:42:19 | -7.3 | NT | Up | 12.1 | 142.6 | Really Low | 04:27:19 - 04:57:19 | 10506 |
| George/Umatilla | 04:42:19 | -8.4 | NT | Up | 13.1 | 143.5 | Really Low | 04:27:19 - 04:57:19 | 10503 |
| Toppenish/White Swan | 04:42:20 | -7.6 | NT | Up | 12.3 | 142.7 | Really Low | 04:27:20 - 04:57:20 | 10499 |
| Goldendale | 04:42:23 | -7.8 | NT | Up | 12.6 | 142.3 | Really Low | 04:27:23 - 04:57:23 | 10456 |
| The Dalles | 04:42:23 | -7.7 | NT | Up | 12.6 | 141.9 | Really Low | 04:27:23 - 04:57:23 | 10433 |
| Maupin | 04:42:23 | -8.1 | NT | Up | 13.0 | 142.0 | Really Low | 04:27:23 - 04:57:23 | 10413 |
| Madras/Culver | 04:42:24 | -8.5 | NT | Up | 13.4 | 141.8 | Really Low | 04:27:24 - 04:57:24 | 10380 |
| Redmond | 04:42:26 | -8.7 | NT | Up | 13.7 | 141.8 | Really Low | 04:27:26 - 04:57:26 | 10358 |
| Sisters | 04:42:27 | -8.5 | NT | Up | 13.5 | 141.4 | Really Low | 04:27:27 - 04:57:27 | 10347 |
| Bend | 04:42:27 | -8.8 | NT | Up | 13.8 | 141.6 | Really Low | 04:27:27 - 04:57:27 | 10341 |
| Oregon Observatory | 04:42:26 | -8.8 | NT | Up | 13.8 | 141.5 | Really Low | 04:27:26 - 04:57:26 | 10327 |
| La Pine/Gilchrist | 04:42:27 | -8.9 | NT | Up | 14.0 | 141.4 | Really Low | 04:27:27 - 04:57:27 | 10313 |
| North Lake | 04:42:27 | -9.5 | NT | Up | 14.6 | 141.8 | Really Low | 04:27:27 - 04:57:27 | 10305 |
| Paisley | 04:42:26 | -10.1 | NT | Up | 15.2 | 142.0 | Really Low | 04:27:26 - 04:57:26 | 10282 |
| Lakeview | 04:42:27 | -10.6 | NT | Up | 15.7 | 142.1 | Really Low | 04:27:27 - 04:57:27 | 10257 |
| Chiloquin | 04:42:30 | -9.5 | NT | Up | 14.7 | 140.9 | Really Low | 04:27:30 - 04:57:30 | 10235 |
| Cedarville | 04:42:27 | -11.1 | NT | Up | 16.3 | 142.1 | Really Low | 04:27:27 - 04:57:27 | 10222 |
| Klamath Falls | 04:42:30 | -9.8 | NT | Up | 15.0 | 140.9 | Really Low | 04:27:30 - 04:57:30 | 10217 |
| Tulelake | 04:42:30 | -10.1 | NT | Up | 15.3 | 141.1 | Really Low | 04:27:30 - 04:57:30 | 10209 |
| Fall River/Burney | 04:42:31 | -10.8 | NT | Up | 16.1 | 141.1 | Really Low | 04:27:31 - 04:57:31 | 10155 |
| Susanville | 04:42:30 | -11.6 | NT | Up | 16.9 | 141.5 | Really Low | 04:27:30 - 04:57:30 | 10137 |
| Gimple | 04:42:32 | -11.7 | NT | Up | 17.1 | 141.3 | Really Low | 04:27:32 - 04:57:32 | 10113 |
| Greenville | 04:42:31 | -11.7 | NT | Up | 17.0 | 141.3 | Really Low | 04:27:31 - 04:57:31 | 10111 |
| Reno | 04:42:29 | -12.7 | AT | Up | 18.0 | 142.1 | Really Low | 04:27:29 - 04:57:29 | 10108 |
| Portola | 04:42:31 | -12.2 | AT | Up | 17.5 | 141.6 | Really Low | 04:27:31 - 04:57:31 | 10104 |
| Quincy | 04:42:31 | -11.8 | NT | Up | 17.2 | 141.2 | Really Low | 04:27:31 - 04:57:31 | 10098 |
| Yerington | 04:42:28 | -13.5 | AT | Up | 18.8 | 142.5 | Really Low | 04:27:28 - 04:57:28 | 10092 |
| Tonopah | 04:42:24 | -15.2 | AT | Up | 20.4 | 143.9 | Low | 04:27:24 - 04:57:24 | 10091 |
| Carson City | 04:42:30 | -13.0 | AT | Up | 18.3 | 142.0 | Really Low | 04:27:30 - 04:57:30 | 10085 |
| Hawthorne | 04:42:28 | -14.1 | AT | Up | 19.4 | 142.8 | Really Low | 04:27:28 - 04:57:28 | 10078 |
| Gardnerville | 04:42:30 | -13.2 | AT | Up | 18.5 | 142.0 | Really Low | 04:27:30 - 04:57:30 | 10070 |
| Indian Springs | 04:42:22 | -17.1 | AT | Up | 22.3 | 144.9 | Low | 04:27:22 - 04:57:22 | 10041 |
| Beatty | 04:42:24 | -16.3 | AT | Up | 21.6 | 144.1 | Low | 04:27:24 - 04:57:24 | 10029 |
| Henderson | 04:42:22 | -17.9 | AT | Up | 23.1 | 145.4 | Low | 04:27:22 - 04:57:22 | 10026 |
| Lee Vining | 04:42:30 | -14.2 | AT | Up | 19.6 | 142.3 | Really Low | 04:27:30 - 04:57:30 | 10026 |
| DCO | 04:42:16 | -19.5 | Dark | Up | 24.7 | 146.7 | Low | 04:27:16 - 04:57:16 | 10019 |
| Patrick | 04:42:18 | -18.9 | Dark | Up | 24.1 | 146.2 | Low | 04:27:18 - 04:57:18 | 10018 |
| Bishop | 04:42:29 | -15.0 | AT | Up | 20.4 | 142.8 | Low | 04:27:29 - 04:57:29 | 10009 |
| Kingman/Dolan Springs | 04:42:19 | -19.0 | Dark | Up | 24.2 | 146.0 | Low | 04:27:19 - 04:57:19 | 9997 |
| Searchlight/Boulder City | 04:42:21 | -18.3 | Dark | Up | 23.6 | 145.3 | Low | 04:27:21 - 04:57:21 | 9989 |
| Laughlin/Bullhead City | 04:42:21 | -18.7 | Dark | Up | 24.0 | 145.5 | Low | 04:27:21 - 04:57:21 | 9980 |
| Lone Pine | 04:42:29 | -15.8 | AT | Up | 21.2 | 142.9 | Low | 04:27:29 - 04:57:29 | 9968 |
| Mohave Valley | 04:42:21 | -18.9 | Dark | Up | 24.2 | 145.5 | Low | 04:27:21 - 04:57:21 | 9961 |
| Lake Havasu City | 04:42:22 | -19.4 | Dark | Up | 24.7 | 145.6 | Low | 04:27:22 - 04:57:22 | 9941 |
| Parker | 04:42:21 | -19.7 | Dark | Up | 25.0 | 145.5 | Low | 04:27:21 - 04:57:21 | 9918 |
| Blythe | 04:42:22 | -19.9 | Dark | Up | 25.3 | 145.1 | Low | 04:27:22 - 04:57:22 | 9871 |
| Idyllwild | 04:42:28 | -18.6 | Dark | Up | 24.1 | 143.3 | Low | 04:27:28 - 04:57:28 | 9812 |
| Calipatria | 04:42:26 | -19.7 | Dark | Up | 25.2 | 144.2 | Low | 04:27:26 - 04:57:26 | 9806 |
| Yuma | 04:42:23 | -20.5 | Dark | Up | 26.0 | 144.8 | Low | 04:27:23 - 04:57:23 | 9804 |
| CPSLO | 04:42:37 | -15.2 | AT | Up | 20.9 | 140.5 | Low | 04:27:37 - 04:57:37 | 9793 |
| Wildwood | 04:42:33 | -17.2 | AT | Up | 22.9 | 141.8 | Low | 04:27:33 - 04:57:33 | 9775 |
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 04KG19, (2019/06/08 04:40UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 4.12 110 8Bet1Sco 16:05:26.2 -19:48:20 2.6 5.31 103 19Omi Sco 16:20:38.2 -24:10:10 4.0 2.04 108 PPM 265502 16:24:53.5 -22:14:07 7.9 0.21 108 04KG19 16:25:16.1 -22:25:31 13.6 108 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:13:54 UT
Marc W. Buie, Southwest Research Institute