Event between (528219) 08KV42 and star GA1440:04900134 with event index number of 1597058
Geocentric closest approach at 2022/07/24 09:22:48 UTC
J2000 position of star is 16:02:04.0 +55:47:55
Equinox of date position of star is 16:02:33.0 +55:44:26
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 99 degrees from the moon.
Moon is 16% illuminated.
TNO apparent brightness V=22.9
[RECON map]
TNO is 24.5 AU from the Sun
and 24.5 AU from the Earth.
The TNO is moving 24.2
km/sec on the sky relative to the star, or,
4.9 arcsec/hr.
The 1-sigma error in the time of the event is 119 seconds.
The 1-sigma cross-track error in the shadow position is
2869 km.
The sky-plane scale is
17767.4 km/arcsec.
The TNO has an absolute magnitude Hv=8.8
Diameter=104.7 km assuming a 5% albedo -- 4.3 sec chord
Diameter=42.8 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is CENTAURR
Star training set for 528219, (2022/07/24 09:23UT) Object RA Dec mag sep mel Vega 18:37:42.2 +38:48:20 0.0 30.69 112 23Bet Dra 17:30:56.6 +52:17:08 2.8 13.37 103 PPM 035211 15:58:19.7 +54:41:12 4.9 1.21 100 PPM 035245 16:01:39.6 +56:22:39 8.2 0.65 98 PPM 035249 16:01:56.6 +55:27:34 9.2 0.29 99 PPM 035250 16:02:08.7 +56:00:25 10.8 0.28 99 528219 16:02:34.8 +55:44:13 15.4 99 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 18.7 km
RECON observability=1.0 and success probability=12.4%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Clarence Fulton | 09:19:43 | -17.9 | AT | Up | 43.2 | 310.2 | Up | 09:09:18 - 09:30:07 | -1354 |
| Kelowna | 09:19:43 | -18.3 | Dark | Up | 43.0 | 310.4 | Up | 09:09:19 - 09:30:08 | -1396 |
| Peachland | 09:19:44 | -18.5 | Dark | Up | 43.1 | 310.4 | Up | 09:09:19 - 09:30:08 | -1417 |
| Summerland | 09:19:43 | -18.6 | Dark | Up | 43.0 | 310.5 | Up | 09:09:19 - 09:30:08 | -1428 |
| Penticton | 09:19:43 | -18.7 | Dark | Up | 42.9 | 310.6 | Up | 09:09:18 - 09:30:07 | -1431 |
| Oliver | 09:19:43 | -19.0 | Dark | Up | 42.6 | 310.8 | Up | 09:09:18 - 09:30:07 | -1464 |
| Anarchist Mountain Observatory | 09:19:42 | -19.1 | Dark | Up | 42.4 | 311.0 | Up | 09:09:18 - 09:30:07 | -1474 |
| Tonasket | 09:19:42 | -19.4 | Dark | Up | 42.3 | 311.2 | Up | 09:09:17 - 09:30:06 | -1505 |
| Okanogan | 09:19:42 | -19.8 | Dark | Up | 42.1 | 311.4 | Up | 09:09:17 - 09:30:06 | -1543 |
| Brewster | 09:19:42 | -20.1 | Dark | Up | 42.0 | 311.5 | Up | 09:09:17 - 09:30:06 | -1575 |
| Dunrhomin | 09:19:07 | -22.5 | Dark | Up | 29.2 | 320.2 | Low | 09:08:42 - 09:29:31 | -1606 |
| Manson/Chelan | 09:19:43 | -20.4 | Dark | Up | 42.1 | 311.5 | Up | 09:09:18 - 09:30:07 | -1608 |
| Victoria | 09:19:50 | -20.4 | Dark | Up | 44.1 | 310.0 | Up | 09:09:26 - 09:30:15 | -1653 |
| Wenatchee | 09:19:43 | -20.8 | Dark | Up | 41.9 | 311.8 | Up | 09:09:19 - 09:30:08 | -1659 |
| Ellensburg | 09:19:43 | -21.3 | Dark | Up | 41.7 | 312.0 | Up | 09:09:18 - 09:30:07 | -1706 |
| Pasco | 09:19:39 | -21.7 | Dark | Up | 40.5 | 312.9 | Up | 09:09:15 - 09:30:04 | -1725 |
| PNWRO | 09:19:39 | -21.9 | Dark | Up | 40.2 | 313.1 | Up | 09:09:14 - 09:30:03 | -1740 |
| Yakima | 09:19:42 | -21.7 | Dark | Up | 41.4 | 312.2 | Up | 09:09:18 - 09:30:07 | -1745 |
| Toppenish/White Swan | 09:19:42 | -21.8 | Dark | Up | 41.2 | 312.4 | Up | 09:09:18 - 09:30:07 | -1759 |
| Goldendale | 09:19:43 | -22.5 | Dark | Up | 41.0 | 312.7 | Up | 09:09:18 - 09:30:07 | -1827 |
| The Dalles | 09:19:43 | -22.8 | Dark | Up | 41.1 | 312.7 | Up | 09:09:19 - 09:30:08 | -1860 |
| Maupin | 09:19:43 | -23.1 | Dark | Up | 40.7 | 313.0 | Up | 09:09:18 - 09:30:07 | -1896 |
| Redmond | 09:19:43 | -24.0 | Dark | Up | 40.2 | 313.5 | Up | 09:09:18 - 09:30:07 | -1985 |
| Sisters | 09:19:44 | -24.1 | Dark | Up | 40.4 | 313.4 | Up | 09:09:19 - 09:30:08 | -1997 |
| Bend | 09:19:43 | -24.2 | Dark | Up | 40.1 | 313.6 | Up | 09:09:18 - 09:30:07 | -2010 |
| Oregon Observatory | 09:19:43 | -24.4 | Dark | Up | 40.0 | 313.7 | Up | 09:09:19 - 09:30:08 | -2031 |
| La Pine/Gilchrist | 09:19:43 | -24.6 | Dark | Up | 39.9 | 313.8 | Up | 09:09:19 - 09:30:08 | -2052 |
| North Lake | 09:19:41 | -24.9 | Dark | Up | 39.3 | 314.2 | Up | 09:09:17 - 09:30:06 | -2071 |
| Paisley | 09:19:40 | -25.4 | Dark | Up | 38.7 | 314.6 | Up | 09:09:16 - 09:30:05 | -2109 |
| Lakeview | 09:19:40 | -25.8 | Dark | Up | 38.3 | 315.0 | Up | 09:09:15 - 09:30:04 | -2148 |
| Chiloquin | 09:19:43 | -25.8 | Dark | Up | 39.3 | 314.4 | Up | 09:09:19 - 09:30:08 | -2168 |
| Klamath Falls | 09:19:43 | -26.1 | Dark | Up | 39.1 | 314.6 | Up | 09:09:19 - 09:30:08 | -2197 |
| Cedarville | 09:19:39 | -26.4 | Dark | Up | 37.7 | 315.4 | Up | 09:09:14 - 09:30:03 | -2201 |
| Fall River/Burney | 09:19:42 | -27.1 | Dark | Up | 38.0 | 315.3 | Up | 09:09:17 - 09:30:06 | -2292 |
| Susanville | 09:19:40 | -27.6 | Dark | Up | 37.2 | 315.8 | Up | 09:09:15 - 09:30:04 | -2321 |
| Gimple | 09:19:40 | -27.9 | Dark | Up | 37.1 | 315.9 | Up | 09:09:15 - 09:30:04 | -2355 |
| Greenville | 09:19:40 | -27.9 | Dark | Up | 37.1 | 315.9 | Up | 09:09:16 - 09:30:05 | -2358 |
| Reno | 09:19:37 | -28.2 | Dark | Up | 36.1 | 316.5 | Up | 09:09:13 - 09:30:02 | -2367 |
| Portola | 09:19:39 | -28.1 | Dark | Up | 36.7 | 316.2 | Up | 09:09:14 - 09:30:03 | -2369 |
| Quincy | 09:19:40 | -28.1 | Dark | Up | 37.0 | 316.0 | Up | 09:09:16 - 09:30:05 | -2376 |
| Tonopah | 09:19:31 | -28.8 | Dark | Up | 33.7 | 317.8 | Up | 09:09:06 - 09:29:55 | -2390 |
| Yerington | 09:19:35 | -28.5 | Dark | Up | 35.4 | 316.9 | Up | 09:09:11 - 09:30:00 | -2390 |
| Carson City | 09:19:37 | -28.5 | Dark | Up | 35.8 | 316.7 | Up | 09:09:12 - 09:30:01 | -2398 |
| Hawthorne | 09:19:34 | -28.8 | Dark | Up | 34.8 | 317.3 | Up | 09:09:09 - 09:29:58 | -2409 |
| Gardnerville | 09:19:37 | -28.7 | Dark | Up | 35.6 | 316.8 | Up | 09:09:12 - 09:30:01 | -2418 |
| Indian Springs | 09:19:27 | -29.7 | Dark | Up | 31.8 | 318.8 | Up | 09:09:02 - 09:29:51 | -2448 |
| Patrick | 09:19:22 | -30.1 | Dark | Up | 29.9 | 319.6 | Low | 09:08:57 - 09:29:46 | -2459 |
| Henderson | 09:19:24 | -30.0 | Dark | Up | 31.0 | 319.1 | Up | 09:09:00 - 09:29:49 | -2460 |
| Beatty | 09:19:29 | -29.8 | Dark | Up | 32.6 | 318.4 | Up | 09:09:04 - 09:29:53 | -2469 |
| Lee Vining | 09:19:35 | -29.5 | Dark | Up | 34.6 | 317.4 | Up | 09:09:10 - 09:29:59 | -2480 |
| Kingman/Dolan Springs | 09:19:23 | -30.4 | Dark | Up | 29.9 | 319.7 | Low | 09:08:58 - 09:29:47 | -2487 |
| George/Scottsdale | 09:19:16 | -30.9 | Dark | Up | 27.6 | 320.6 | Low | 09:08:52 - 09:29:41 | -2495 |
| Bishop | 09:19:34 | -29.8 | Dark | Up | 33.8 | 317.8 | Up | 09:09:09 - 09:29:58 | -2501 |
| Laughlin/Bullhead City | 09:19:23 | -30.6 | Dark | Up | 30.1 | 319.5 | Up | 09:08:59 - 09:29:48 | -2514 |
| Mohave Valley | 09:19:23 | -30.8 | Dark | Up | 29.9 | 319.7 | Low | 09:08:59 - 09:29:48 | -2536 |
| Lake Havasu City | 09:19:23 | -31.1 | Dark | Up | 29.5 | 319.9 | Low | 09:08:58 - 09:29:47 | -2557 |
| Parker | 09:19:23 | -31.4 | Dark | Up | 29.2 | 320.0 | Low | 09:08:58 - 09:29:47 | -2585 |
| Blythe | 09:19:23 | -32.0 | Dark | Up | 28.9 | 320.1 | Low | 09:08:59 - 09:29:48 | -2643 |
| Yuma | 09:19:23 | -32.8 | Dark | Up | 28.2 | 320.4 | Low | 09:08:59 - 09:29:48 | -2720 |
| Calipatria | 09:19:25 | -32.8 | Dark | Up | 29.1 | 320.1 | Low | 09:09:01 - 09:29:50 | -2729 |
| Idyllwild | 09:19:28 | -32.6 | Dark | Up | 30.2 | 319.7 | Up | 09:09:04 - 09:29:53 | -2736 |
| CPSLO | 09:19:39 | -32.4 | Dark | Down | 33.4 | 318.3 | Up | 09:09:14 - 09:30:03 | -2776 |
| Wildwood | 09:19:33 | -32.9 | Dark | Down | 31.4 | 319.2 | Up | 09:09:09 - 09:29:58 | -2792 |
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 528219, (2022/07/24 09:23UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 30.69 112 23Bet Dra 17:30:25.9 +52:18:05 2.8 13.37 103 PPM 035211 15:57:47.1 +54:45:02 4.9 1.21 100 PPM 035245 16:01:09.7 +56:26:22 8.2 0.65 98 PPM 035249 16:01:25.4 +55:31:17 9.2 0.29 99 PPM 035250 16:01:38.3 +56:04:08 10.8 0.28 99 528219 16:02:04.0 +55:47:55 15.4 99 Positions are for J2000
Event circumstances last updated at 2021/04/11 23:48:06 UT
Marc W. Buie, Southwest Research Institute