Event between 05UN524 and star GA1280:03258485 with event index number of 186745
Geocentric closest approach at 2019/05/02 04:16:17 UTC
J2000 position of star is 06:53:55.4 +38:39:44
Equinox of date position of star is 06:55:14.9 +38:38:13
Stellar brightness G=12.6,
use SENSEUP=16
Star is 93 degrees from the moon.
Moon is 8% illuminated.
TNO apparent brightness V=22.3
[RECON map]
TNO is 18.8 AU from the Sun
and 19.3 AU from the Earth.
The TNO is moving 22.5
km/sec on the sky relative to the star, or,
5.8 arcsec/hr.
The 1-sigma error in the time of the event is 232 seconds.
The 1-sigma cross-track error in the shadow position is
1808 km.
The sky-plane scale is
13965.3 km/arcsec.
The TNO has an absolute magnitude Hv=9.2
Diameter=86.3 km assuming a 5% albedo -- 3.8 sec chord
Diameter=35.2 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
Star training set for 05UN524, (2019/05/02 04:16UT) Object RA Dec mag sep mel Pollux 07:46:29.8 +27:58:41 1.1 15.08 105 34Bet Aur 06:00:56.8 +44:56:50 1.9 11.90 83 61Psi8Aur 06:55:16.5 +38:28:45 6.2 0.16 93 PPM 072203 06:54:33.4 +38:33:43 11.7 0.15 93 05UN524 06:55:15.0 +38:38:13 12.6 93 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
3.9 sigma about the mid-time.
The median site spacing is 11.0 km
RECON observability=0.4 and success probability=16.8%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Niwot | 04:18:53 | -23.4 | Dark | Down | 33.2 | 295.1 | Up | 04:03:53 - 04:33:53 | 1673 |
| SwRI | 04:18:54 | -23.5 | Dark | Down | 33.3 | 295.1 | Up | 04:03:54 - 04:33:54 | 1663 |
| Kelowna | 04:18:05 | -9.4 | NT | Down | 45.9 | 279.7 | Up | 04:03:05 - 04:33:05 | 1384 |
| Penticton | 04:18:06 | -9.5 | NT | Down | 45.9 | 279.9 | Up | 04:03:06 - 04:33:06 | 1358 |
| Summerland | 04:18:06 | -9.4 | NT | Down | 46.0 | 279.8 | Up | 04:03:06 - 04:33:06 | 1355 |
| Okanagan Falls | 04:18:07 | -9.6 | NT | Down | 45.9 | 280.1 | Up | 04:03:07 - 04:33:07 | 1347 |
| Anarchist Mountain Observatory | 04:18:09 | -9.9 | NT | Down | 45.7 | 280.6 | Up | 04:03:09 - 04:33:09 | 1341 |
| Oliver | 04:18:08 | -9.7 | NT | Down | 45.9 | 280.3 | Up | 04:03:08 - 04:33:08 | 1340 |
| Oroville | 04:18:09 | -9.9 | NT | Down | 45.8 | 280.6 | Up | 04:03:09 - 04:33:09 | 1334 |
| Tonasket | 04:18:10 | -10.1 | NT | Down | 45.7 | 280.9 | Up | 04:03:10 - 04:33:10 | 1322 |
| Okanogan | 04:18:11 | -10.2 | NT | Down | 45.7 | 281.1 | Up | 04:03:11 - 04:33:11 | 1298 |
| Brewster | 04:18:13 | -10.3 | NT | Down | 45.8 | 281.3 | Up | 04:03:13 - 04:33:13 | 1274 |
| Manson/Chelan | 04:18:13 | -10.2 | NT | Down | 46.0 | 281.3 | Up | 04:03:13 - 04:33:13 | 1244 |
| Entiat | 04:18:14 | -10.3 | NT | Down | 46.0 | 281.4 | Up | 04:03:14 - 04:33:14 | 1229 |
| Pasco | 04:18:21 | -11.8 | NT | Down | 45.0 | 283.5 | Up | 04:03:21 - 04:33:21 | 1213 |
| PNWRO | 04:18:22 | -12.0 | AT | Down | 44.7 | 283.9 | Up | 04:03:22 - 04:33:22 | 1212 |
| Wenatchee | 04:18:15 | -10.4 | NT | Down | 46.0 | 281.6 | Up | 04:03:15 - 04:33:15 | 1211 |
| George/Umatilla | 04:18:22 | -11.8 | NT | Down | 45.0 | 283.7 | Up | 04:03:22 - 04:33:22 | 1184 |
| Ellensburg | 04:18:17 | -10.5 | NT | Down | 46.1 | 281.9 | Up | 04:03:17 - 04:33:17 | 1177 |
| Yakima | 04:18:18 | -10.7 | NT | Down | 46.0 | 282.3 | Up | 04:03:18 - 04:33:18 | 1155 |
| Toppenish/White Swan | 04:18:19 | -11.0 | NT | Down | 45.8 | 282.7 | Up | 04:03:19 - 04:33:19 | 1152 |
| Goldendale | 04:18:21 | -11.1 | NT | Down | 46.0 | 283.0 | Up | 04:03:21 - 04:33:21 | 1100 |
| The Dalles | 04:18:22 | -11.0 | NT | Down | 46.2 | 283.0 | Up | 04:03:22 - 04:33:22 | 1068 |
| Maupin | 04:18:24 | -11.3 | NT | Down | 46.0 | 283.5 | Up | 04:03:24 - 04:33:24 | 1050 |
| Madras/Culver | 04:18:26 | -11.6 | NT | Down | 45.9 | 284.0 | Up | 04:03:26 - 04:33:26 | 1018 |
| Redmond | 04:18:28 | -11.8 | NT | Down | 45.9 | 284.4 | Up | 04:03:28 - 04:33:28 | 995 |
| Bend | 04:18:28 | -11.8 | NT | Down | 45.9 | 284.5 | Up | 04:03:28 - 04:33:28 | 975 |
| Sisters | 04:18:27 | -11.5 | NT | Down | 46.1 | 284.1 | Up | 04:03:27 - 04:33:27 | 974 |
| Oregon Observatory | 04:18:29 | -11.8 | NT | Down | 46.0 | 284.6 | Up | 04:03:29 - 04:33:29 | 958 |
| North Lake | 04:18:32 | -12.5 | AT | Down | 45.4 | 285.5 | Up | 04:03:32 - 04:33:32 | 952 |
| La Pine/Gilchrist | 04:18:30 | -11.9 | NT | Down | 45.9 | 284.8 | Up | 04:03:30 - 04:33:30 | 943 |
| Paisley | 04:18:35 | -13.1 | AT | Down | 45.0 | 286.2 | Up | 04:03:35 - 04:33:35 | 940 |
| DCO | 04:19:11 | -22.4 | Dark | Down | 36.8 | 295.3 | Up | 04:04:11 - 04:34:11 | 940 |
| Lakeview | 04:18:37 | -13.5 | AT | Down | 44.7 | 286.8 | Up | 04:03:37 - 04:33:37 | 922 |
| Patrick | 04:19:09 | -21.7 | Dark | Down | 37.5 | 294.9 | Up | 04:04:09 - 04:34:09 | 914 |
| Cedarville | 04:18:40 | -14.0 | AT | Down | 44.4 | 287.5 | Up | 04:03:40 - 04:33:40 | 894 |
| Kingman/Dolan Springs | 04:19:10 | -21.7 | Dark | Down | 37.5 | 295.0 | Up | 04:04:10 - 04:34:10 | 889 |
| Henderson | 04:19:06 | -20.6 | Dark | Down | 38.6 | 294.1 | Up | 04:04:06 - 04:34:06 | 882 |
| Indian Springs | 04:19:04 | -19.8 | Dark | Down | 39.3 | 293.5 | Up | 04:04:04 - 04:34:04 | 871 |
| Tonopah | 04:18:56 | -17.9 | AT | Down | 41.0 | 291.8 | Up | 04:03:56 - 04:33:56 | 865 |
| Chiloquin | 04:18:34 | -12.4 | AT | Down | 45.9 | 285.7 | Up | 04:03:34 - 04:33:34 | 859 |
| Laughlin/Bullhead City | 04:19:10 | -21.4 | Dark | Down | 37.9 | 294.8 | Up | 04:04:10 - 04:34:10 | 855 |
| Searchlight/Boulder City | 04:19:08 | -21.0 | Dark | Down | 38.3 | 294.5 | Up | 04:04:08 - 04:34:08 | 852 |
| Tulelake | 04:18:37 | -12.9 | AT | Down | 45.4 | 286.5 | Up | 04:03:37 - 04:33:37 | 845 |
| Klamath Falls | 04:18:35 | -12.6 | AT | Down | 45.7 | 286.1 | Up | 04:03:35 - 04:33:35 | 843 |
| Mohave Valley | 04:19:11 | -21.6 | Dark | Down | 37.8 | 295.0 | Up | 04:04:11 - 04:34:11 | 840 |
| Lake Havasu City | 04:19:12 | -22.0 | Dark | Down | 37.4 | 295.4 | Up | 04:04:12 - 04:34:12 | 831 |
| Beatty | 04:19:01 | -18.9 | Dark | Down | 40.2 | 292.8 | Up | 04:04:01 - 04:34:01 | 824 |
| Parker | 04:19:13 | -22.2 | Dark | Down | 37.2 | 295.6 | Up | 04:04:13 - 04:34:13 | 812 |
| Hawthorne | 04:18:53 | -16.8 | AT | Down | 42.2 | 290.8 | Up | 04:03:53 - 04:33:53 | 808 |
| Yerington | 04:18:51 | -16.1 | AT | Down | 42.8 | 290.2 | Up | 04:03:51 - 04:33:51 | 804 |
| Susanville | 04:18:44 | -14.4 | AT | Down | 44.4 | 288.4 | Up | 04:03:44 - 04:33:44 | 801 |
| Reno | 04:18:48 | -15.4 | AT | Down | 43.5 | 289.5 | Up | 04:03:48 - 04:33:48 | 798 |
| Fall River/Burney | 04:18:41 | -13.5 | AT | Down | 45.1 | 287.4 | Up | 04:03:41 - 04:33:41 | 795 |
| Carson City | 04:18:50 | -15.6 | AT | Down | 43.3 | 289.8 | Up | 04:03:50 - 04:33:50 | 778 |
| Portola | 04:18:46 | -14.8 | AT | Down | 44.0 | 289.0 | Up | 04:03:46 - 04:33:46 | 776 |
| Gimple | 04:18:45 | -14.4 | AT | Down | 44.4 | 288.5 | Up | 04:03:45 - 04:33:45 | 772 |
| Greenville | 04:18:45 | -14.3 | AT | Down | 44.5 | 288.5 | Up | 04:03:45 - 04:33:45 | 767 |
| Gardnerville | 04:18:50 | -15.8 | AT | Down | 43.2 | 290.1 | Up | 04:03:50 - 04:33:50 | 766 |
| Blythe | 04:19:15 | -22.4 | Dark | Down | 37.2 | 295.9 | Up | 04:04:15 - 04:34:15 | 761 |
| Quincy | 04:18:46 | -14.5 | AT | Down | 44.4 | 288.7 | Up | 04:03:46 - 04:33:46 | 755 |
| Bishop | 04:18:58 | -17.6 | AT | Down | 41.6 | 291.9 | Up | 04:03:58 - 04:33:58 | 753 |
| Lee Vining | 04:18:55 | -16.8 | AT | Down | 42.4 | 291.1 | Up | 04:03:55 - 04:33:55 | 745 |
| Lone Pine | 04:19:01 | -18.3 | Dark | Down | 41.1 | 292.6 | Up | 04:04:01 - 04:34:01 | 727 |
| Yuma | 04:19:19 | -22.9 | Dark | Down | 36.8 | 296.5 | Up | 04:04:19 - 04:34:19 | 702 |
| Calipatria | 04:19:17 | -22.1 | Dark | Down | 37.7 | 296.0 | Up | 04:04:17 - 04:34:17 | 672 |
| Idyllwild | 04:19:14 | -20.9 | Dark | Down | 38.9 | 295.3 | Up | 04:04:14 - 04:34:14 | 634 |
| Wildwood | 04:19:10 | -19.4 | Dark | Down | 40.4 | 294.5 | Up | 04:04:10 - 04:34:10 | 537 |
| CPSLO | 04:19:04 | -17.3 | AT | Down | 42.5 | 292.9 | Up | 04:04:04 - 04:34:04 | 485 |
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 05UN524, (2019/05/02 04:16UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 15.08 105 34Bet Aur 05:59:31.6 +44:56:51 1.9 11.90 83 61Psi8Aur 06:53:57.1 +38:30:17 6.2 0.16 93 PPM 072203 06:53:13.9 +38:35:14 11.7 0.15 93 05UN524 06:53:55.4 +38:39:44 12.6 93 Positions are for J2000
Event circumstances last updated at 2019/04/25 23:12:25 UT
Marc W. Buie, Southwest Research Institute