Event between 99CC119 and star GA0820:04302729 with event index number of 1057883
Geocentric closest approach at 2021/02/10 13:58:32 UTC
J2000 position of star is 12:59:08.1 -06:16:27
Equinox of date position of star is 13:00:13.7 -06:23:14
Stellar brightness G=14.2,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 111 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=23.6
[RECON map]
TNO is 43.0 AU from the Sun
and 42.4 AU from the Earth.
The TNO is moving 12.7
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 452 seconds.
The 1-sigma cross-track error in the shadow position is
4127 km.
The sky-plane scale is
30739.3 km/arcsec.
The TNO has an absolute magnitude Hv=7.2
Diameter=221.8 km assuming a 5% albedo -- 17.4 sec chord
Diameter=90.6 km assuming a 30% albedo -- 7.1 sec chord
Dynamical classification is CLASSICAL
Star training set for 99CC119, (2021/02/10 13:59UT) Object RA Dec mag sep mel Spica 13:26:18.5 -11:16:15 1.0 8.08 103 PPM 195939 12:54:43.6 -04:20:22 6.5 2.46 113 PPM 196026 13:00:05.8 -06:12:17 7.8 0.19 111 PPM 196033 13:00:36.2 -06:30:39 9.4 0.15 111 99CC119 13:00:13.9 -06:23:16 14.2 111 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
2.0 sigma about the mid-time.
The median site spacing is 0.0 km
RECON observability=0.0 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) |
| Clarence Fulton | 13:58:16 | -12.9 | AT | Down | 25.3 | 220.7 | Low | 13:43:16 - 14:13:16 | 2832 |
| Kelowna | 13:58:15 | -13.0 | AT | Down | 25.7 | 220.6 | Low | 13:43:15 - 14:13:15 | 2813 |
| Peachland | 13:58:15 | -13.2 | AT | Down | 25.9 | 220.4 | Low | 13:43:15 - 14:13:15 | 2804 |
| Summerland | 13:58:13 | -13.1 | AT | Down | 26.0 | 220.5 | Low | 13:43:13 - 14:13:13 | 2800 |
| Penticton | 13:58:13 | -13.0 | AT | Down | 26.0 | 220.6 | Low | 13:43:13 - 14:13:13 | 2799 |
| Oliver | 13:58:12 | -13.0 | AT | Down | 26.3 | 220.7 | Low | 13:43:12 - 14:13:12 | 2784 |
| Anarchist Mountain Observatory | 13:58:08 | -12.8 | AT | Down | 26.3 | 221.0 | Low | 13:43:08 - 14:13:08 | 2781 |
| Tonasket | 13:58:07 | -12.8 | AT | Down | 26.6 | 221.0 | Low | 13:43:07 - 14:13:07 | 2767 |
| Okanogan | 13:58:06 | -12.9 | AT | Down | 26.9 | 221.0 | Low | 13:43:06 - 14:13:06 | 2750 |
| Brewster | 13:58:05 | -13.0 | AT | Down | 27.2 | 220.8 | Low | 13:43:05 - 14:13:05 | 2734 |
| Manson/Chelan | 13:58:08 | -13.2 | AT | Down | 27.5 | 220.6 | Low | 13:43:08 - 14:13:08 | 2719 |
| Wenatchee | 13:58:04 | -13.3 | AT | Down | 28.0 | 220.5 | Low | 13:43:04 - 14:13:04 | 2694 |
| Victoria | 13:58:24 | -15.4 | AT | Down | 28.3 | 217.1 | Low | 13:43:24 - 14:13:24 | 2683 |
| Ellensburg | 13:58:04 | -13.4 | AT | Down | 28.4 | 220.5 | Low | 13:43:04 - 14:13:04 | 2672 |
| Pasco | 13:57:53 | -12.4 | AT | Down | 28.3 | 222.1 | Low | 13:42:53 - 14:12:53 | 2665 |
| PNWRO | 13:57:50 | -12.2 | AT | Down | 28.4 | 222.4 | Low | 13:42:50 - 14:12:50 | 2658 |
| Yakima | 13:58:01 | -13.4 | AT | Down | 28.7 | 220.6 | Low | 13:43:01 - 14:13:01 | 2653 |
| Toppenish/White Swan | 13:58:00 | -13.2 | AT | Down | 28.8 | 220.8 | Low | 13:43:00 - 14:13:00 | 2646 |
| Goldendale | 13:57:58 | -13.5 | AT | Down | 29.4 | 220.6 | Low | 13:42:58 - 14:12:58 | 2612 |
| Dunrhomin | 13:56:16 | -1.4 | CT | Up | 24.7 | 236.9 | Low | 13:41:16 - 14:11:16 | 2610 |
| The Dalles | 13:57:58 | -13.7 | AT | Down | 29.7 | 220.3 | Low | 13:42:58 - 14:12:58 | 2594 |
| Maupin | 13:57:56 | -13.6 | AT | Down | 30.0 | 220.5 | Up | 13:42:56 - 14:12:56 | 2576 |
| Redmond | 13:57:51 | -13.6 | AT | Down | 30.7 | 220.8 | Up | 13:42:51 - 14:12:51 | 2530 |
| Sisters | 13:57:56 | -13.8 | AT | Down | 30.9 | 220.4 | Up | 13:42:56 - 14:12:56 | 2523 |
| Bend | 13:57:51 | -13.6 | AT | Down | 31.0 | 220.7 | Up | 13:42:51 - 14:12:51 | 2517 |
| Oregon Observatory | 13:57:51 | -13.7 | AT | Down | 31.2 | 220.6 | Up | 13:42:51 - 14:12:51 | 2506 |
| La Pine/Gilchrist | 13:57:51 | -13.7 | AT | Down | 31.3 | 220.7 | Up | 13:42:51 - 14:12:51 | 2494 |
| North Lake | 13:57:45 | -13.3 | AT | Down | 31.4 | 221.4 | Up | 13:42:45 - 14:12:45 | 2484 |
| Paisley | 13:57:41 | -12.9 | AT | Down | 31.6 | 222.0 | Up | 13:42:41 - 14:12:41 | 2463 |
| Lakeview | 13:57:37 | -12.7 | AT | Down | 31.9 | 222.4 | Up | 13:42:37 - 14:12:37 | 2441 |
| Klamath Falls | 13:57:45 | -13.8 | AT | Down | 32.6 | 220.9 | Up | 13:42:45 - 14:12:45 | 2412 |
| Cedarville | 13:57:31 | -12.5 | AT | Down | 32.3 | 222.8 | Up | 13:42:31 - 14:12:31 | 2409 |
| Fall River/Burney | 13:57:36 | -13.4 | AT | Down | 33.3 | 221.8 | Up | 13:42:36 - 14:12:36 | 2356 |
| Susanville | 13:57:29 | -12.8 | AT | Down | 33.4 | 222.8 | Up | 13:42:29 - 14:12:29 | 2337 |
| Gimple | 13:57:28 | -12.9 | AT | Down | 33.7 | 222.7 | Up | 13:42:28 - 14:12:28 | 2317 |
| Greenville | 13:57:30 | -12.9 | AT | Down | 33.8 | 222.6 | Up | 13:42:30 - 14:12:30 | 2315 |
| Portola | 13:57:25 | -12.5 | AT | Down | 33.8 | 223.3 | Up | 13:42:25 - 14:12:25 | 2307 |
| Reno | 13:57:21 | -12.0 | AT | Down | 33.6 | 224.0 | Up | 13:42:21 - 14:12:21 | 2306 |
| Quincy | 13:57:28 | -12.9 | AT | Down | 33.9 | 222.7 | Up | 13:42:28 - 14:12:28 | 2304 |
| Yerington | 13:57:14 | -11.5 | NT | Down | 33.7 | 224.9 | Up | 13:42:14 - 14:12:14 | 2288 |
| Carson City | 13:57:18 | -12.0 | NT | Down | 33.9 | 224.2 | Up | 13:42:18 - 14:12:18 | 2286 |
| Tonopah | 13:57:01 | -9.8 | NT | Down | 33.3 | 227.2 | Up | 13:42:01 - 14:12:01 | 2276 |
| Gardnerville | 13:57:19 | -11.9 | NT | Down | 34.0 | 224.4 | Up | 13:42:19 - 14:12:19 | 2273 |
| Hawthorne | 13:57:10 | -11.0 | NT | Down | 33.7 | 225.6 | Up | 13:42:10 - 14:12:10 | 2273 |
| Lee Vining | 13:57:09 | -11.3 | NT | Down | 34.4 | 225.4 | Up | 13:42:09 - 14:12:09 | 2230 |
| Indian Springs | 13:56:44 | -8.4 | NT | Down | 33.4 | 229.3 | Up | 13:41:44 - 14:11:44 | 2219 |
| Beatty | 13:56:50 | -9.3 | NT | Down | 33.8 | 228.2 | Up | 13:41:50 - 14:11:50 | 2216 |
| Bishop | 13:57:02 | -10.6 | NT | Down | 34.4 | 226.4 | Up | 13:42:02 - 14:12:02 | 2209 |
| Henderson | 13:56:38 | -7.8 | NT | Down | 33.3 | 230.2 | Up | 13:41:38 - 14:11:38 | 2200 |
| Patrick | 13:56:28 | -6.8 | NT | Down | 33.0 | 231.5 | Up | 13:41:28 - 14:11:28 | 2184 |
| Kingman/Dolan Springs | 13:56:28 | -6.9 | NT | Down | 33.3 | 231.5 | Up | 13:41:28 - 14:11:28 | 2166 |
| Laughlin/Bullhead City | 13:56:30 | -7.3 | NT | Down | 33.6 | 231.0 | Up | 13:41:30 - 14:11:30 | 2154 |
| Mohave Valley | 13:56:29 | -7.2 | NT | Down | 33.8 | 231.2 | Up | 13:41:29 - 14:11:29 | 2137 |
| George/Scottsdale | 13:56:10 | -4.8 | CT | Up | 32.8 | 234.1 | Up | 13:41:10 - 14:11:10 | 2117 |
| Lake Havasu City | 13:56:25 | -7.0 | NT | Down | 33.9 | 231.6 | Up | 13:41:25 - 14:11:25 | 2117 |
| Parker | 13:56:23 | -6.9 | NT | Down | 34.1 | 231.8 | Up | 13:41:23 - 14:11:23 | 2095 |
| Blythe | 13:56:22 | -7.0 | NT | Down | 34.6 | 231.8 | Up | 13:41:22 - 14:11:22 | 2055 |
| CPSLO | 13:57:03 | -12.1 | AT | Down | 37.1 | 225.2 | Up | 13:42:03 - 14:12:03 | 2029 |
| Idyllwild | 13:56:33 | -8.7 | NT | Down | 35.9 | 229.8 | Up | 13:41:33 - 14:11:33 | 2018 |
| Calipatria | 13:56:25 | -7.7 | NT | Down | 35.5 | 231.2 | Up | 13:41:25 - 14:11:25 | 2002 |
| Wildwood | 13:56:46 | -10.3 | NT | Down | 36.8 | 227.8 | Up | 13:41:46 - 14:11:46 | 1999 |
| Yuma | 13:56:17 | -6.9 | NT | Down | 35.2 | 232.3 | Up | 13:41:17 - 14:11:17 | 1993 |
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 99CC119, (2021/02/10 13:59UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 8.08 103 PPM 195939 12:53:38.1 -04:13:30 6.5 2.46 113 PPM 196026 12:59:00.1 -06:05:28 7.8 0.19 111 PPM 196033 12:59:30.4 -06:23:50 9.4 0.15 111 99CC119 12:59:08.1 -06:16:27 14.2 111 Positions are for J2000
Event circumstances last updated at 2021/01/18 21:26:52 UT
Marc W. Buie, Southwest Research Institute