Event between (342842) 08YB3 and star GA1520:05796893 with event index number of 336624
Geocentric closest approach at 2019/05/09 07:41:58 UTC
J2000 position of star is 21:05:57.5 +63:45:20
Equinox of date position of star is 21:06:20.6 +63:49:58
Stellar brightness G=15.4,
use SENSEUP=128
Star is 90 degrees from the moon.
Moon is 21% illuminated.
TNO apparent brightness V=20.7
[RECON map]
TNO is 12.4 AU from the Sun
and 12.7 AU from the Earth.
The TNO is moving 22.5
km/sec on the sky relative to the star, or,
8.8 arcsec/hr.
The 1-sigma error in the time of the event is 58 seconds.
The 1-sigma cross-track error in the shadow position is
710 km.
The sky-plane scale is
9197.5 km/arcsec.
The TNO has an absolute magnitude Hv=9.3
Diameter=83.2 km assuming a 5% albedo -- 3.7 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
Star training set for 342842, (2019/05/09 07:42UT) Object RA Dec mag sep mel Deneb 20:42:05.5 +45:21:01 1.3 18.79 108 Alderamin 21:19:02.4 +62:40:05 2.4 1.84 91 PPM 022646 21:09:53.6 +63:22:30 6.4 0.60 91 PPM 022614 21:07:15.5 +63:51:25 8.3 0.10 90 342842 21:06:20.8 +63:50:01 15.4 90 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 18.5 km
RECON observability=1.0 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 | 07:44:16 | -22.8 | Dark | Down | 42.0 | 36.4 | Up | 07:38:55 - 07:49:38 | -5809 |
| Kelowna | 07:44:16 | -22.8 | Dark | Down | 42.2 | 36.6 | Up | 07:38:54 - 07:49:37 | -5812 |
| Penticton | 07:44:15 | -23.1 | Dark | Down | 41.8 | 36.3 | Up | 07:38:54 - 07:49:37 | -5841 |
| Okanagan Falls | 07:44:16 | -23.3 | Dark | Down | 41.6 | 36.2 | Up | 07:38:54 - 07:49:37 | -5857 |
| Oliver | 07:44:16 | -23.5 | Dark | Down | 41.5 | 36.1 | Up | 07:38:54 - 07:49:37 | -5872 |
| Anarchist Mountain Observatory | 07:44:14 | -23.6 | Dark | Down | 41.5 | 36.1 | Up | 07:38:53 - 07:49:36 | -5890 |
| Oroville | 07:44:16 | -23.7 | Dark | Down | 41.4 | 36.0 | Up | 07:38:54 - 07:49:37 | -5896 |
| Tonasket | 07:44:15 | -24.0 | Dark | Down | 41.2 | 35.9 | Up | 07:38:54 - 07:49:37 | -5916 |
| Okanogan | 07:44:15 | -24.3 | Dark | Down | 40.9 | 35.7 | Up | 07:38:54 - 07:49:37 | -5943 |
| Brewster | 07:44:15 | -24.5 | Dark | Down | 40.6 | 35.5 | Up | 07:38:54 - 07:49:37 | -5963 |
| Manson/Chelan | 07:44:17 | -24.7 | Dark | Down | 40.2 | 35.3 | Up | 07:38:56 - 07:49:39 | -5974 |
| Entiat | 07:44:17 | -25.0 | Dark | Down | 40.0 | 35.2 | Up | 07:38:56 - 07:49:39 | -5992 |
| Wenatchee | 07:44:18 | -25.2 | Dark | Down | 39.8 | 35.0 | Up | 07:38:56 - 07:49:39 | -6012 |
| Ellensburg | 07:44:17 | -25.6 | Dark | Down | 39.4 | 34.8 | Up | 07:38:56 - 07:49:39 | -6043 |
| Yakima | 07:44:17 | -26.0 | Dark | Down | 39.0 | 34.6 | Up | 07:38:56 - 07:49:39 | -6077 |
| Toppenish/White Swan | 07:44:17 | -26.2 | Dark | Down | 38.9 | 34.5 | Up | 07:38:55 - 07:49:38 | -6099 |
| Pasco | 07:44:13 | -26.4 | Dark | Down | 39.3 | 34.8 | Up | 07:38:51 - 07:49:34 | -6132 |
| Goldendale | 07:44:18 | -26.8 | Dark | Down | 38.3 | 34.2 | Up | 07:38:56 - 07:49:39 | -6137 |
| The Dalles | 07:44:19 | -27.0 | Dark | Down | 38.0 | 34.0 | Up | 07:38:57 - 07:49:40 | -6148 |
| George/Umatilla | 07:44:13 | -26.7 | Dark | Down | 38.9 | 34.6 | Up | 07:38:52 - 07:49:35 | -6156 |
| PNWRO | 07:44:12 | -26.7 | Dark | Down | 39.2 | 34.8 | Up | 07:38:51 - 07:49:34 | -6157 |
| Maupin | 07:44:18 | -27.4 | Dark | Down | 37.7 | 33.8 | Up | 07:38:56 - 07:49:39 | -6185 |
| Madras/Culver | 07:44:18 | -27.9 | Dark | Down | 37.2 | 33.6 | Up | 07:38:56 - 07:49:39 | -6229 |
| Sisters | 07:44:19 | -28.3 | Dark | Down | 36.7 | 33.3 | Up | 07:38:57 - 07:49:40 | -6247 |
| Redmond | 07:44:17 | -28.3 | Dark | Down | 36.9 | 33.4 | Up | 07:38:56 - 07:49:39 | -6258 |
| Bend | 07:44:18 | -28.5 | Dark | Down | 36.6 | 33.3 | Up | 07:38:57 - 07:49:40 | -6272 |
| Oregon Observatory | 07:44:18 | -28.7 | Dark | Down | 36.4 | 33.2 | Up | 07:38:56 - 07:49:39 | -6283 |
| La Pine/Gilchrist | 07:44:18 | -28.9 | Dark | Down | 36.2 | 33.1 | Up | 07:38:57 - 07:49:40 | -6299 |
| North Lake | 07:44:16 | -29.3 | Dark | Down | 36.1 | 33.1 | Up | 07:38:55 - 07:49:38 | -6346 |
| Chiloquin | 07:44:19 | -30.0 | Dark | Down | 35.2 | 32.6 | Up | 07:38:57 - 07:49:40 | -6380 |
| Paisley | 07:44:14 | -29.9 | Dark | Down | 35.8 | 32.9 | Up | 07:38:53 - 07:49:36 | -6398 |
| Klamath Falls | 07:44:18 | -30.3 | Dark | Down | 34.9 | 32.5 | Up | 07:38:56 - 07:49:39 | -6409 |
| Tulelake | 07:44:17 | -30.6 | Dark | Down | 34.8 | 32.4 | Up | 07:38:56 - 07:49:39 | -6436 |
| Lakeview | 07:44:14 | -30.4 | Dark | Down | 35.4 | 32.8 | Up | 07:38:52 - 07:49:35 | -6442 |
| Cedarville | 07:44:13 | -31.1 | Dark | Down | 35.0 | 32.6 | Up | 07:38:51 - 07:49:34 | -6497 |
| Fall River/Burney | 07:44:16 | -31.5 | Dark | Down | 34.1 | 32.1 | Up | 07:38:55 - 07:49:38 | -6509 |
| Susanville | 07:44:14 | -32.2 | Dark | Down | 33.8 | 32.1 | Up | 07:38:52 - 07:49:35 | -6574 |
| Greenville | 07:44:14 | -32.4 | Dark | Down | 33.5 | 31.9 | Up | 07:38:52 - 07:49:35 | -6589 |
| Gimple | 07:44:14 | -32.4 | Dark | Down | 33.5 | 31.9 | Up | 07:38:53 - 07:49:36 | -6591 |
| Quincy | 07:44:14 | -32.6 | Dark | Down | 33.3 | 31.8 | Up | 07:38:53 - 07:49:36 | -6604 |
| Portola | 07:44:12 | -32.8 | Dark | Down | 33.4 | 31.9 | Up | 07:38:50 - 07:49:33 | -6624 |
| Reno | 07:44:10 | -33.1 | Dark | Down | 33.4 | 31.9 | Up | 07:38:48 - 07:49:31 | -6658 |
| Carson City | 07:44:09 | -33.4 | Dark | Down | 33.1 | 31.8 | Up | 07:38:48 - 07:49:31 | -6685 |
| Gardnerville | 07:44:09 | -33.7 | Dark | Down | 32.9 | 31.7 | Up | 07:38:48 - 07:49:31 | -6705 |
| Yerington | 07:44:07 | -33.7 | Dark | Down | 33.2 | 31.9 | Up | 07:38:46 - 07:49:29 | -6713 |
| Niwot | 07:43:23 | -31.6 | Dark | Down | 40.0 | 34.5 | Up | 07:38:02 - 07:48:45 | -6758 |
| Hawthorne | 07:44:05 | -34.1 | Dark | Down | 33.0 | 31.8 | Up | 07:38:44 - 07:49:27 | -6758 |
| SwRI | 07:43:23 | -31.7 | Dark | Down | 39.9 | 34.4 | Up | 07:38:02 - 07:48:45 | -6766 |
| Lee Vining | 07:44:06 | -34.7 | Dark | Down | 32.3 | 31.5 | Up | 07:38:45 - 07:49:28 | -6790 |
| Tonopah | 07:43:59 | -34.6 | Dark | Down | 33.2 | 31.9 | Up | 07:38:38 - 07:49:21 | -6818 |
| Bishop | 07:44:03 | -35.3 | Dark | Down | 32.1 | 31.5 | Up | 07:38:42 - 07:49:25 | -6848 |
| Lone Pine | 07:44:02 | -36.1 | Dark | Down | 31.6 | 31.3 | Up | 07:38:40 - 07:49:23 | -6910 |
| Beatty | 07:43:57 | -35.8 | Dark | Down | 32.4 | 31.6 | Up | 07:38:36 - 07:49:19 | -6911 |
| CPSLO | 07:44:08 | -37.3 | Dark | Down | 29.4 | 30.4 | Low | 07:38:47 - 07:49:30 | -6948 |
| Indian Springs | 07:43:54 | -36.1 | Dark | Down | 32.6 | 31.7 | Up | 07:38:33 - 07:49:16 | -6952 |
| Henderson | 07:43:50 | -36.6 | Dark | Down | 32.4 | 31.6 | Up | 07:38:29 - 07:49:12 | -7001 |
| Searchlight/Boulder City | 07:43:50 | -37.2 | Dark | Down | 31.9 | 31.4 | Up | 07:38:28 - 07:49:11 | -7043 |
| Patrick | 07:43:41 | -37.2 | Dark | Down | 32.3 | 31.5 | Up | 07:38:19 - 07:49:02 | -7062 |
| Laughlin/Bullhead City | 07:43:48 | -37.5 | Dark | Down | 31.8 | 31.4 | Up | 07:38:27 - 07:49:10 | -7069 |
| Kingman/Dolan Springs | 07:43:41 | -37.4 | Dark | Down | 32.1 | 31.4 | Up | 07:38:19 - 07:49:02 | -7075 |
| Wildwood | 07:44:01 | -38.6 | Dark | Down | 29.2 | 30.4 | Low | 07:38:39 - 07:49:22 | -7076 |
| Mohave Valley | 07:43:47 | -37.8 | Dark | Down | 31.6 | 31.3 | Up | 07:38:26 - 07:49:09 | -7088 |
| DCO | 07:43:41 | -37.5 | Dark | Down | 32.4 | 31.5 | Up | 07:38:19 - 07:49:02 | -7091 |
| Lake Havasu City | 07:43:41 | -38.1 | Dark | Down | 31.4 | 31.2 | Up | 07:38:19 - 07:49:02 | -7121 |
| Idyllwild | 07:43:53 | -39.0 | Dark | Down | 29.7 | 30.6 | Low | 07:38:32 - 07:49:15 | -7136 |
| Parker | 07:43:41 | -38.5 | Dark | Down | 31.1 | 31.1 | Up | 07:38:19 - 07:49:02 | -7145 |
| Blythe | 07:43:41 | -39.0 | Dark | Down | 30.5 | 30.9 | Up | 07:38:19 - 07:49:02 | -7178 |
| Calipatria | 07:43:49 | -39.6 | Dark | Down | 29.7 | 30.6 | Low | 07:38:27 - 07:49:10 | -7196 |
| Yuma | 07:43:41 | -40.0 | Dark | Down | 29.7 | 30.6 | Low | 07:38:19 - 07:49:02 | -7239 |
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 342842, (2019/05/09 07:42UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 18.79 108 Alderamin 21:18:35.2 +62:35:09 2.4 1.84 91 PPM 022646 21:09:28.9 +63:17:45 6.4 0.60 91 PPM 022614 21:06:52.1 +63:46:42 8.3 0.10 90 342842 21:05:57.5 +63:45:20 15.4 90 Positions are for J2000
Event circumstances last updated at 2019/02/12 07:41:10 UT
Marc W. Buie, Southwest Research Institute