Event between 05GF187 and star GA0700:07407703 with event index number of 195516
Geocentric closest approach at 2019/04/22 10:07:36 UTC
J2000 position of star is 16:58:50.3 -19:24:25
Equinox of date position of star is 16:59:58.3 -19:26:06
Stellar brightness G=12.3,
use SENSEUP=16
Star is 5 degrees from the moon.
Moon is 89% illuminated.
TNO apparent brightness V=22.9
[RECON map]
TNO is 29.5 AU from the Sun
and 28.8 AU from the Earth.
The TNO is moving 14.9
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 319 seconds.
The 1-sigma cross-track error in the shadow position is
2150 km.
The sky-plane scale is
20858.6 km/arcsec.
The TNO has an absolute magnitude Hv=8.1
Diameter=144.5 km assuming a 5% albedo -- 9.7 sec chord
Diameter=59.0 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is 3:2E
Star training set for 05GF187, (2019/04/22 10:08UT) Object RA Dec mag sep mel Antares 16:30:35.7 -26:28:24 0.9 9.76 8 35Eta Oph 17:11:29.2 -15:44:51 2.6 4.60 9 PPM 232367 16:58:12.1 -19:34:09 6.1 0.44 5 PPM 232457 17:01:26.9 -19:11:45 8.3 0.42 6 PPM 232411 16:59:46.0 -19:26:02 8.9 0.05 5 05GF187 16:59:58.5 -19:26:07 12.3 6 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
2.8 sigma about the mid-time.
The median site spacing is 10.9 km
RECON observability=1.0 and success probability=11.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 10:09:37 | -21.4 | Dark | Up | 19.9 | 168.5 | Really Low | 09:54:37 - 10:24:37 | 496 |
| Summerland | 10:09:38 | -21.7 | Dark | Up | 20.2 | 168.2 | Low | 09:54:38 - 10:24:38 | 478 |
| Penticton | 10:09:38 | -21.7 | Dark | Up | 20.3 | 168.3 | Low | 09:54:38 - 10:24:38 | 477 |
| Okanagan Falls | 10:09:38 | -21.9 | Dark | Up | 20.5 | 168.2 | Low | 09:54:38 - 10:24:38 | 469 |
| Oliver | 10:09:38 | -22.0 | Dark | Up | 20.6 | 168.2 | Low | 09:54:38 - 10:24:38 | 462 |
| Anarchist Mountain Observatory | 10:09:37 | -22.1 | Dark | Up | 20.8 | 168.4 | Low | 09:54:37 - 10:24:37 | 458 |
| Oroville | 10:09:37 | -22.2 | Dark | Up | 20.9 | 168.3 | Low | 09:54:37 - 10:24:37 | 453 |
| Tonasket | 10:09:37 | -22.4 | Dark | Up | 21.1 | 168.3 | Low | 09:54:37 - 10:24:37 | 443 |
| Okanogan | 10:09:38 | -22.7 | Dark | Up | 21.4 | 168.1 | Low | 09:54:38 - 10:24:38 | 426 |
| Brewster | 10:09:40 | -23.0 | Dark | Up | 21.7 | 167.9 | Low | 09:54:40 - 10:24:40 | 410 |
| Manson/Chelan | 10:09:42 | -23.3 | Dark | Up | 21.8 | 167.5 | Low | 09:54:42 - 10:24:42 | 394 |
| Entiat | 10:09:42 | -23.5 | Dark | Up | 22.0 | 167.5 | Low | 09:54:42 - 10:24:42 | 383 |
| Wenatchee | 10:09:43 | -23.8 | Dark | Up | 22.3 | 167.3 | Low | 09:54:43 - 10:24:43 | 369 |
| Ellensburg | 10:09:44 | -24.2 | Dark | Up | 22.6 | 167.1 | Low | 09:54:44 - 10:24:44 | 346 |
| Pasco | 10:09:37 | -24.2 | Dark | Up | 23.6 | 168.4 | Low | 09:54:37 - 10:24:37 | 335 |
| PNWRO | 10:09:37 | -24.3 | Dark | Up | 23.8 | 168.6 | Low | 09:54:37 - 10:24:37 | 327 |
| Yakima | 10:09:44 | -24.5 | Dark | Up | 23.0 | 167.0 | Low | 09:54:44 - 10:24:44 | 326 |
| Toppenish/White Swan | 10:09:44 | -24.6 | Dark | Up | 23.3 | 167.2 | Low | 09:54:44 - 10:24:44 | 319 |
| George/Umatilla | 10:09:39 | -24.6 | Dark | Up | 23.9 | 168.2 | Low | 09:54:39 - 10:24:39 | 315 |
| Goldendale | 10:09:46 | -25.3 | Dark | Up | 23.7 | 166.7 | Low | 09:54:46 - 10:24:46 | 284 |
| The Dalles | 10:09:48 | -25.6 | Dark | Up | 23.9 | 166.3 | Low | 09:54:48 - 10:24:48 | 266 |
| Maupin | 10:09:48 | -25.9 | Dark | Up | 24.3 | 166.4 | Low | 09:54:48 - 10:24:48 | 247 |
| Niwot | 10:08:24 | -21.8 | Dark | Up | 30.4 | 182.6 | Up | 09:53:24 - 10:23:24 | 230 |
| SwRI | 10:08:24 | -21.9 | Dark | Up | 30.6 | 182.5 | Up | 09:53:24 - 10:23:24 | 223 |
| Madras/Culver | 10:09:48 | -26.4 | Dark | Up | 24.8 | 166.3 | Low | 09:54:48 - 10:24:48 | 218 |
| Redmond | 10:09:49 | -26.7 | Dark | Up | 25.2 | 166.2 | Low | 09:54:49 - 10:24:49 | 199 |
| Sisters | 10:09:51 | -26.8 | Dark | Up | 25.1 | 165.8 | Low | 09:54:51 - 10:24:51 | 193 |
| Bend | 10:09:49 | -26.9 | Dark | Up | 25.4 | 166.0 | Low | 09:54:49 - 10:24:49 | 185 |
| Oregon Observatory | 10:09:50 | -27.1 | Dark | Up | 25.5 | 165.9 | Low | 09:54:50 - 10:24:50 | 173 |
| La Pine/Gilchrist | 10:09:51 | -27.3 | Dark | Up | 25.7 | 165.8 | Low | 09:54:51 - 10:24:51 | 161 |
| North Lake | 10:09:48 | -27.4 | Dark | Up | 26.2 | 166.3 | Low | 09:54:48 - 10:24:48 | 150 |
| Paisley | 10:09:47 | -27.7 | Dark | Up | 26.8 | 166.6 | Low | 09:54:47 - 10:24:47 | 126 |
| Lakeview | 10:09:46 | -28.0 | Dark | Up | 27.3 | 166.8 | Low | 09:54:46 - 10:24:46 | 102 |
| Chiloquin | 10:09:53 | -28.3 | Dark | Up | 26.7 | 165.3 | Low | 09:54:53 - 10:24:53 | 94 |
| Klamath Falls | 10:09:53 | -28.6 | Dark | Up | 27.1 | 165.3 | Low | 09:54:53 - 10:24:53 | 77 |
| Cedarville | 10:09:45 | -28.5 | Dark | Up | 28.0 | 166.9 | Low | 09:54:45 - 10:24:45 | 69 |
| Tulelake | 10:09:52 | -28.7 | Dark | Up | 27.4 | 165.6 | Low | 09:54:52 - 10:24:52 | 68 |
| Fall River/Burney | 10:09:52 | -29.4 | Dark | Up | 28.3 | 165.6 | Low | 09:54:52 - 10:24:52 | 18 |
| Susanville | 10:09:48 | -29.6 | Dark | Up | 29.0 | 166.3 | Low | 09:54:48 - 10:24:48 | -4 |
| Gimple | 10:09:50 | -29.9 | Dark | Up | 29.2 | 166.0 | Low | 09:54:50 - 10:24:50 | -25 |
| Greenville | 10:09:50 | -29.9 | Dark | Up | 29.2 | 165.9 | Low | 09:54:50 - 10:24:50 | -26 |
| Portola | 10:09:48 | -30.0 | Dark | Up | 29.6 | 166.4 | Low | 09:54:48 - 10:24:48 | -36 |
| Quincy | 10:09:50 | -30.1 | Dark | Up | 29.4 | 165.9 | Low | 09:54:50 - 10:24:50 | -38 |
| Reno | 10:09:44 | -29.9 | Dark | Up | 30.0 | 167.0 | Up | 09:54:44 - 10:24:44 | -39 |
| Yerington | 10:09:41 | -30.0 | Dark | Up | 30.7 | 167.6 | Up | 09:54:41 - 10:24:41 | -60 |
| Carson City | 10:09:44 | -30.2 | Dark | Up | 30.4 | 167.0 | Up | 09:54:44 - 10:24:44 | -60 |
| Gardnerville | 10:09:44 | -30.3 | Dark | Up | 30.6 | 167.0 | Up | 09:54:44 - 10:24:44 | -74 |
| Hawthorne | 10:09:38 | -30.1 | Dark | Up | 31.2 | 168.1 | Up | 09:54:38 - 10:24:38 | -77 |
| Tonopah | 10:09:30 | -29.8 | Dark | Up | 31.9 | 169.6 | Up | 09:54:30 - 10:24:30 | -79 |
| Lee Vining | 10:09:41 | -30.8 | Dark | Up | 31.7 | 167.5 | Up | 09:54:41 - 10:24:41 | -122 |
| Beatty | 10:09:28 | -30.4 | Dark | Up | 33.1 | 170.0 | Up | 09:54:28 - 10:24:28 | -142 |
| Indian Springs | 10:09:22 | -30.1 | Dark | Up | 33.5 | 171.1 | Up | 09:54:22 - 10:24:22 | -143 |
| Bishop | 10:09:37 | -30.9 | Dark | Up | 32.4 | 168.2 | Up | 09:54:37 - 10:24:37 | -144 |
| Henderson | 10:09:18 | -30.1 | Dark | Up | 34.1 | 171.8 | Up | 09:54:18 - 10:24:18 | -164 |
| Patrick | 10:09:11 | -29.9 | Dark | Up | 34.9 | 173.0 | Up | 09:54:11 - 10:24:11 | -184 |
| Lone Pine | 10:09:35 | -31.3 | Dark | Up | 33.2 | 168.5 | Up | 09:54:35 - 10:24:35 | -186 |
| DCO | 10:09:07 | -29.7 | Dark | Up | 35.2 | 173.8 | Up | 09:54:07 - 10:24:07 | -191 |
| Searchlight/Boulder City | 10:09:17 | -30.5 | Dark | Up | 34.7 | 171.8 | Up | 09:54:17 - 10:24:17 | -199 |
| Kingman/Dolan Springs | 10:09:12 | -30.2 | Dark | Up | 35.1 | 172.8 | Up | 09:54:12 - 10:24:12 | -202 |
| Laughlin/Bullhead City | 10:09:15 | -30.5 | Dark | Up | 35.0 | 172.2 | Up | 09:54:15 - 10:24:15 | -212 |
| Mohave Valley | 10:09:15 | -30.7 | Dark | Up | 35.3 | 172.2 | Up | 09:54:15 - 10:24:15 | -230 |
| Lake Havasu City | 10:09:14 | -30.8 | Dark | Up | 35.7 | 172.4 | Up | 09:54:14 - 10:24:14 | -252 |
| Parker | 10:09:14 | -31.1 | Dark | Up | 36.1 | 172.4 | Up | 09:54:14 - 10:24:14 | -274 |
| Blythe | 10:09:15 | -31.6 | Dark | Up | 36.6 | 172.0 | Up | 09:54:15 - 10:24:15 | -315 |
| CPSLO | 10:09:50 | -33.6 | Dark | Up | 34.0 | 165.5 | Up | 09:54:50 - 10:24:50 | -322 |
| Idyllwild | 10:09:27 | -32.7 | Dark | Up | 36.2 | 169.6 | Up | 09:54:27 - 10:24:27 | -347 |
| Wildwood | 10:09:38 | -33.5 | Dark | Up | 35.5 | 167.6 | Up | 09:54:38 - 10:24:38 | -361 |
| Calipatria | 10:09:21 | -32.5 | Dark | Up | 37.0 | 170.9 | Up | 09:54:21 - 10:24:21 | -366 |
| Yuma | 10:09:15 | -32.3 | Dark | Up | 37.5 | 171.9 | Up | 09:54:15 - 10:24:15 | -378 |
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 05GF187, (2019/04/22 10:08UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 9.76 8 35Eta Oph 17:10:22.7 -15:43:29 2.6 4.60 9 PPM 232367 16:57:03.9 -19:32:25 6.1 0.44 5 PPM 232457 17:00:18.9 -19:10:06 8.3 0.42 6 PPM 232411 16:58:37.8 -19:24:20 8.9 0.05 5 05GF187 16:58:50.3 -19:24:25 12.3 5 Positions are for J2000
Event circumstances last updated at 2019/03/29 21:47:37 UT
Marc W. Buie, Southwest Research Institute