Event between (517717) 15KZ120 and star GA1600:00334757 with event index number of 2627133
Geocentric closest approach at 2022/03/25 12:35:12 UTC
J2000 position of star is 00:46:41.2 +70:54:48
Equinox of date position of star is 00:48:07.1 +71:02:04
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 116 degrees from the moon.
Moon is 47% illuminated.
TNO apparent brightness V=20.7
[RECON map]
TNO is 10.2 AU from the Sun
and 10.5 AU from the Earth.
The TNO is moving 37.6
km/sec on the sky relative to the star, or,
17.7 arcsec/hr.
The 1-sigma error in the time of the event is 34 seconds.
The 1-sigma cross-track error in the shadow position is
435 km.
The sky-plane scale is
7637.2 km/arcsec.
The TNO has an absolute magnitude Hv=10.1
Diameter=57.5 km assuming a 5% albedo -- 1.5 sec chord
Diameter=23.5 km assuming a 30% albedo -- 0.6 sec chord
Dynamical classification is CENTAURR
Star training set for 517717, (2022/03/25 12:35UT) Object RA Dec mag sep mel Deneb 20:42:11.4 +45:21:38 1.3 38.56 77 27Gam Cas 00:58:04.1 +60:50:12 1.6 10.25 115 PPM 004414 00:34:40.5 +71:06:15 6.4 1.09 115 PPM 004475 00:45:27.9 +70:56:42 7.7 0.23 116 PPM 004488 00:46:41.1 +71:07:10 9.6 0.14 116 PPM 004500 00:48:18.9 +70:56:54 10.2 0.09 116 517717 00:48:07.2 +71:02:04 16.7 116 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 9.4 km
RECON observability=0.5 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) |
| Victoria | 12:33:28 | -15.7 | AT | Up | 36.0 | 19.6 | Up | 12:30:08 - 12:36:48 | 2498 |
| Chiloquin | 12:33:15 | -16.8 | AT | Up | 30.7 | 18.8 | Up | 12:29:55 - 12:36:35 | 2446 |
| Klamath Falls | 12:33:15 | -16.8 | AT | Up | 30.4 | 18.7 | Up | 12:29:55 - 12:36:35 | 2442 |
| Fall River/Burney | 12:33:13 | -16.9 | AT | Up | 29.4 | 18.6 | Low | 12:29:53 - 12:36:33 | 2418 |
| Sisters | 12:33:18 | -16.0 | AT | Up | 32.4 | 19.2 | Up | 12:29:58 - 12:36:38 | 2417 |
| Oregon Observatory | 12:33:17 | -16.1 | AT | Up | 32.1 | 19.1 | Up | 12:29:57 - 12:36:37 | 2410 |
| Bend | 12:33:18 | -15.9 | AT | Up | 32.3 | 19.2 | Up | 12:29:58 - 12:36:38 | 2400 |
| Greenville | 12:33:11 | -16.9 | AT | Up | 28.6 | 18.5 | Low | 12:29:51 - 12:36:31 | 2387 |
| Quincy | 12:33:10 | -17.0 | AT | Up | 28.4 | 18.5 | Low | 12:29:50 - 12:36:30 | 2387 |
| The Dalles | 12:33:20 | -15.3 | AT | Up | 33.7 | 19.6 | Up | 12:30:00 - 12:36:40 | 2382 |
| Gimple | 12:33:10 | -16.8 | AT | Up | 28.6 | 18.6 | Low | 12:29:50 - 12:36:30 | 2381 |
| Maupin | 12:33:19 | -15.4 | AT | Up | 33.4 | 19.5 | Up | 12:29:59 - 12:36:39 | 2378 |
| North Lake | 12:33:16 | -15.9 | AT | Up | 31.6 | 19.1 | Up | 12:29:56 - 12:36:36 | 2376 |
| Susanville | 12:33:11 | -16.6 | AT | Up | 29.0 | 18.7 | Low | 12:29:51 - 12:36:31 | 2366 |
| Goldendale | 12:33:20 | -15.0 | AT | Up | 34.0 | 19.7 | Up | 12:30:00 - 12:36:40 | 2356 |
| Portola | 12:33:10 | -16.7 | AT | Up | 28.4 | 18.6 | Low | 12:29:50 - 12:36:30 | 2352 |
| Lakeview | 12:33:14 | -15.8 | AT | Up | 30.7 | 19.1 | Up | 12:29:54 - 12:36:34 | 2340 |
| Yakima | 12:33:22 | -14.6 | AT | Up | 34.8 | 20.0 | Up | 12:30:02 - 12:36:42 | 2334 |
| Ellensburg | 12:33:22 | -14.4 | AT | Up | 35.2 | 20.1 | Up | 12:30:02 - 12:36:42 | 2330 |
| Cedarville | 12:33:12 | -15.9 | AT | Up | 30.1 | 19.0 | Up | 12:29:52 - 12:36:32 | 2329 |
| Toppenish/White Swan | 12:33:21 | -14.5 | AT | Up | 34.7 | 20.0 | Up | 12:30:01 - 12:36:41 | 2324 |
| Wenatchee | 12:33:23 | -14.2 | AT | Up | 35.6 | 20.2 | Up | 12:30:03 - 12:36:43 | 2312 |
| Reno | 12:33:09 | -16.3 | AT | Up | 28.3 | 18.7 | Low | 12:29:49 - 12:36:29 | 2304 |
| Carson City | 12:33:08 | -16.3 | AT | Up | 28.0 | 18.7 | Low | 12:29:48 - 12:36:28 | 2302 |
| Gardnerville | 12:33:08 | -16.4 | AT | Up | 27.8 | 18.6 | Low | 12:29:48 - 12:36:28 | 2298 |
| Manson/Chelan | 12:33:24 | -13.9 | AT | Up | 36.1 | 20.4 | Up | 12:30:04 - 12:36:44 | 2298 |
| Kamloops | 12:33:29 | -13.1 | AT | Up | 38.7 | 21.1 | Up | 12:30:09 - 12:36:49 | 2285 |
| Brewster | 12:33:24 | -13.6 | AT | Up | 36.4 | 20.6 | Up | 12:30:04 - 12:36:44 | 2272 |
| Peachland | 12:33:27 | -13.0 | AT | Up | 38.0 | 21.0 | Up | 12:30:07 - 12:36:47 | 2257 |
| Okanogan | 12:33:24 | -13.4 | AT | Up | 36.7 | 20.7 | Up | 12:30:04 - 12:36:44 | 2257 |
| Yerington | 12:33:07 | -15.9 | AT | Up | 28.0 | 18.8 | Low | 12:29:47 - 12:36:27 | 2254 |
| Summerland | 12:33:27 | -13.0 | AT | Up | 37.9 | 21.0 | Up | 12:30:07 - 12:36:47 | 2253 |
| Oliver | 12:33:26 | -13.1 | AT | Up | 37.5 | 20.9 | Up | 12:30:06 - 12:36:46 | 2249 |
| Lee Vining | 12:33:06 | -16.2 | AT | Up | 27.0 | 18.6 | Low | 12:29:46 - 12:36:26 | 2249 |
| Penticton | 12:33:26 | -13.0 | AT | Up | 37.8 | 21.0 | Up | 12:30:06 - 12:36:46 | 2246 |
| Tonasket | 12:33:25 | -13.2 | AT | Up | 37.1 | 20.8 | Up | 12:30:05 - 12:36:45 | 2245 |
| Anarchist Mountain Observatory | 12:33:25 | -13.0 | AT | Up | 37.4 | 20.9 | Up | 12:30:05 - 12:36:45 | 2238 |
| Kelowna | 12:33:27 | -12.8 | AT | Up | 38.1 | 21.1 | Up | 12:30:07 - 12:36:47 | 2238 |
| PNWRO | 12:33:19 | -13.7 | AT | Up | 34.7 | 20.3 | Up | 12:29:59 - 12:36:39 | 2226 |
| Hawthorne | 12:33:06 | -15.7 | AT | Up | 27.7 | 18.8 | Low | 12:29:46 - 12:36:26 | 2213 |
| Bishop | 12:33:04 | -15.8 | AT | Up | 26.6 | 18.7 | Low | 12:29:44 - 12:36:24 | 2191 |
| Wildwood | 12:32:59 | -16.8 | AT | Up | 23.5 | 18.2 | Low | 12:29:39 - 12:36:19 | 2189 |
| Tonopah | 12:33:04 | -14.7 | AT | Up | 27.6 | 19.1 | Low | 12:29:44 - 12:36:24 | 2103 |
| Beatty | 12:33:02 | -14.7 | AT | Up | 26.6 | 19.0 | Low | 12:29:42 - 12:36:22 | 2060 |
| Idyllwild | 12:32:57 | -15.4 | AT | Up | 23.6 | 18.5 | Low | 12:29:37 - 12:36:17 | 2032 |
| Indian Springs | 12:33:01 | -13.9 | AT | Up | 26.6 | 19.2 | Low | 12:29:41 - 12:36:21 | 1972 |
| Calipatria | 12:32:55 | -14.5 | AT | Up | 23.3 | 18.7 | Low | 12:29:35 - 12:36:15 | 1928 |
| Henderson | 12:32:59 | -13.5 | AT | Up | 26.3 | 19.2 | Low | 12:29:39 - 12:36:19 | 1912 |
| Laughlin/Bullhead City | 12:32:57 | -13.3 | AT | Up | 25.5 | 19.2 | Low | 12:29:37 - 12:36:17 | 1870 |
| Mohave Valley | 12:32:57 | -13.4 | AT | Up | 25.3 | 19.1 | Low | 12:29:37 - 12:36:17 | 1867 |
| Yuma | 12:32:54 | -13.9 | AT | Up | 23.2 | 18.8 | Low | 12:29:34 - 12:36:14 | 1848 |
| Lake Havasu City | 12:32:56 | -13.3 | AT | Up | 25.0 | 19.1 | Low | 12:29:36 - 12:36:16 | 1842 |
| Parker | 12:32:56 | -13.3 | AT | Up | 24.6 | 19.1 | Low | 12:29:36 - 12:36:16 | 1836 |
| Kingman/Dolan Springs | 12:32:57 | -12.9 | AT | Up | 25.7 | 19.3 | Low | 12:29:37 - 12:36:17 | 1828 |
| Patrick | 12:32:57 | -12.7 | AT | Up | 26.0 | 19.4 | Low | 12:29:37 - 12:36:17 | 1815 |
| George/Scottsdale | 12:32:53 | -11.4 | NT | Up | 24.9 | 19.5 | Low | 12:29:33 - 12:36:13 | 1627 |
| Sleaford | 12:33:24 | -4.0 | CT | Up | 43.6 | 25.7 | Up | 12:30:04 - 12:36:44 | 1376 |
| CU-SBO | 12:33:00 | -5.3 | CT | Up | 32.7 | 22.0 | Up | 12:29:40 - 12:36:20 | 1180 |
| Dunrhomin | 12:33:00 | -5.1 | CT | Up | 32.9 | 22.0 | Up | 12:29:40 - 12:36:20 | 1176 |
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 517717, (2022/03/25 12:35UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 38.56 77 27Gam Cas 00:56:42.6 +60:43:00 1.6 10.25 115 PPM 004414 00:33:19.4 +70:58:54 6.4 1.09 115 PPM 004475 00:44:02.9 +70:49:25 7.7 0.23 116 PPM 004488 00:45:15.5 +70:59:54 9.6 0.14 116 PPM 004500 00:46:52.9 +70:49:38 10.2 0.09 116 517717 00:46:41.2 +70:54:48 16.7 116 Positions are for J2000
Event circumstances last updated at 2022/03/15 00:59:45 UT
Marc W. Buie, Southwest Research Institute