Event between 00AF255 and star GA1380:04207305 with event index number of 1986665
Geocentric closest approach at 2021/09/22 10:31:32 UTC
J2000 position of star is 08:42:28.7 +49:55:58
Equinox of date position of star is 08:44:01.3 +49:51:15
Stellar brightness G=15.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 103 degrees from the moon.
Moon is 98% illuminated.
TNO apparent brightness V=22.9
[RECON map]
TNO is 48.9 AU from the Sun
and 49.3 AU from the Earth.
The TNO is moving 22.5
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 459 seconds.
The 1-sigma cross-track error in the shadow position is
5374 km.
The sky-plane scale is
35746.9 km/arcsec.
The TNO has an absolute magnitude Hv=5.9
Diameter=401.8 km assuming a 5% albedo -- 17.8 sec chord
Diameter=164.0 km assuming a 30% albedo -- 7.3 sec chord
Dynamical classification is SCATNEAR
Star training set for 00AF255, (2021/09/22 10:32UT) Object RA Dec mag sep mel Pollux 07:46:38.6 +27:58:19 1.1 24.47 97 Merak 11:03:08.3 +56:15:56 2.4 21.60 115 9Iot UMa 09:00:41.1 +47:57:17 3.1 3.33 106 PPM 050694 08:38:13.7 +49:17:58 8.2 1.09 102 PPM 050774 08:44:36.9 +49:54:27 8.9 0.11 103 00AF255 08:44:01.6 +49:51:14 15.9 103 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 4.9 km
RECON observability=1.0 and success probability=6.4%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 10:29:20 | -32.4 | Dark | Up | 32.3 | 49.3 | Up | 10:14:20 - 10:44:20 | 3425 |
| The Dalles | 10:29:06 | -33.4 | Dark | Up | 31.5 | 49.0 | Up | 10:14:06 - 10:44:06 | 3258 |
| Peachland | 10:29:22 | -29.8 | Dark | Up | 35.0 | 51.7 | Up | 10:14:22 - 10:44:22 | 3255 |
| Sisters | 10:29:02 | -34.5 | Dark | Up | 30.5 | 48.2 | Up | 10:14:02 - 10:44:02 | 3254 |
| Ellensburg | 10:29:11 | -32.1 | Dark | Up | 32.8 | 49.9 | Up | 10:14:11 - 10:44:11 | 3250 |
| Summerland | 10:29:22 | -29.9 | Dark | Up | 34.9 | 51.7 | Up | 10:14:22 - 10:44:22 | 3248 |
| Wenatchee | 10:29:12 | -31.7 | Dark | Up | 33.2 | 50.2 | Up | 10:14:12 - 10:44:12 | 3245 |
| Manson/Chelan | 10:29:14 | -31.3 | Dark | Up | 33.6 | 50.5 | Up | 10:14:14 - 10:44:14 | 3245 |
| Maupin | 10:29:04 | -33.6 | Dark | Up | 31.3 | 48.8 | Up | 10:14:04 - 10:44:04 | 3244 |
| Yakima | 10:29:10 | -32.4 | Dark | Up | 32.5 | 49.7 | Up | 10:14:10 - 10:44:10 | 3243 |
| Goldendale | 10:29:07 | -33.0 | Dark | Up | 31.9 | 49.2 | Up | 10:14:07 - 10:44:07 | 3242 |
| Kelowna | 10:29:22 | -29.6 | Dark | Up | 35.2 | 51.9 | Up | 10:14:22 - 10:44:22 | 3241 |
| Penticton | 10:29:20 | -29.9 | Dark | Up | 34.9 | 51.7 | Up | 10:14:20 - 10:44:20 | 3241 |
| Clarence Fulton | 10:29:23 | -29.3 | Dark | Up | 35.5 | 52.2 | Up | 10:14:23 - 10:44:23 | 3239 |
| Oregon Observatory | 10:29:00 | -34.7 | Dark | Up | 30.2 | 48.1 | Up | 10:14:00 - 10:44:00 | 3238 |
| La Pine/Gilchrist | 10:28:59 | -34.8 | Dark | Up | 30.1 | 47.9 | Up | 10:13:59 - 10:43:59 | 3237 |
| Oliver | 10:29:19 | -30.1 | Dark | Up | 34.7 | 51.5 | Up | 10:14:19 - 10:44:19 | 3235 |
| Bend | 10:29:01 | -34.5 | Dark | Up | 30.4 | 48.2 | Up | 10:14:01 - 10:44:01 | 3234 |
| Chiloquin | 10:28:54 | -35.8 | Dark | Up | 29.1 | 47.3 | Low | 10:13:54 - 10:43:54 | 3233 |
| Redmond | 10:29:00 | -34.3 | Dark | Up | 30.7 | 48.3 | Up | 10:14:00 - 10:44:00 | 3231 |
| Toppenish/White Swan | 10:29:08 | -32.4 | Dark | Up | 32.5 | 49.7 | Up | 10:14:08 - 10:44:08 | 3230 |
| Brewster | 10:29:15 | -31.0 | Dark | Up | 33.9 | 50.8 | Up | 10:14:15 - 10:44:15 | 3229 |
| Okanogan | 10:29:15 | -30.7 | Dark | Up | 34.2 | 51.1 | Up | 10:14:15 - 10:44:15 | 3223 |
| Anarchist Mountain Observatory | 10:29:18 | -30.1 | Dark | Up | 34.7 | 51.5 | Up | 10:14:18 - 10:44:18 | 3223 |
| Tonasket | 10:29:17 | -30.4 | Dark | Up | 34.5 | 51.3 | Up | 10:14:17 - 10:44:17 | 3221 |
| Klamath Falls | 10:28:54 | -36.0 | Dark | Up | 28.9 | 47.2 | Low | 10:13:54 - 10:43:54 | 3220 |
| North Lake | 10:28:57 | -34.8 | Dark | Up | 30.1 | 48.0 | Up | 10:13:57 - 10:43:57 | 3193 |
| Fall River/Burney | 10:28:49 | -36.5 | Dark | Up | 28.3 | 46.9 | Low | 10:13:49 - 10:43:49 | 3169 |
| Paisley | 10:28:54 | -35.0 | Dark | Up | 29.9 | 47.9 | Low | 10:13:54 - 10:43:54 | 3159 |
| Pasco | 10:29:06 | -31.9 | Dark | Up | 33.1 | 50.2 | Up | 10:14:06 - 10:44:06 | 3157 |
| PNWRO | 10:29:06 | -31.9 | Dark | Up | 33.0 | 50.1 | Up | 10:14:06 - 10:44:06 | 3139 |
| Lakeview | 10:28:52 | -35.2 | Dark | Up | 29.7 | 47.8 | Low | 10:13:52 - 10:43:52 | 3136 |
| Greenville | 10:28:44 | -36.9 | Dark | Up | 27.9 | 46.7 | Low | 10:13:44 - 10:43:44 | 3119 |
| Gimple | 10:28:45 | -36.8 | Dark | Up | 28.0 | 46.7 | Low | 10:13:45 - 10:43:45 | 3113 |
| Quincy | 10:28:44 | -37.0 | Dark | Up | 27.8 | 46.6 | Low | 10:13:44 - 10:43:44 | 3113 |
| Cedarville | 10:28:50 | -35.5 | Dark | Up | 29.3 | 47.6 | Low | 10:13:50 - 10:43:50 | 3109 |
| Susanville | 10:28:46 | -36.5 | Dark | Up | 28.3 | 46.9 | Low | 10:13:46 - 10:43:46 | 3108 |
| Portola | 10:28:43 | -36.8 | Dark | Up | 28.0 | 46.7 | Low | 10:13:43 - 10:43:43 | 3081 |
| Reno | 10:28:41 | -36.6 | Dark | Up | 28.2 | 46.9 | Low | 10:13:41 - 10:43:41 | 3033 |
| Carson City | 10:28:40 | -36.8 | Dark | Up | 27.9 | 46.7 | Low | 10:13:40 - 10:43:40 | 3022 |
| Gardnerville | 10:28:39 | -36.9 | Dark | Up | 27.8 | 46.7 | Low | 10:13:39 - 10:43:39 | 3012 |
| Yerington | 10:28:39 | -36.5 | Dark | Up | 28.2 | 46.9 | Low | 10:13:39 - 10:43:39 | 2977 |
| CPSLO | 10:28:28 | -39.7 | Dark | Up | 24.7 | 45.1 | Low | 10:13:28 - 10:43:28 | 2955 |
| Lee Vining | 10:28:35 | -37.1 | Dark | Up | 27.5 | 46.5 | Low | 10:13:35 - 10:43:35 | 2943 |
| Hawthorne | 10:28:36 | -36.5 | Dark | Up | 28.1 | 46.9 | Low | 10:13:36 - 10:43:36 | 2929 |
| Bishop | 10:28:32 | -37.0 | Dark | Up | 27.5 | 46.5 | Low | 10:13:32 - 10:43:32 | 2878 |
| Tonopah | 10:28:33 | -35.9 | Dark | Up | 28.6 | 47.2 | Low | 10:13:33 - 10:43:33 | 2825 |
| Wildwood | 10:28:21 | -39.0 | Dark | Up | 25.0 | 45.3 | Low | 10:13:21 - 10:43:21 | 2779 |
| Beatty | 10:28:28 | -36.2 | Dark | Up | 28.1 | 46.8 | Low | 10:13:28 - 10:43:28 | 2757 |
| Indian Springs | 10:28:27 | -35.7 | Dark | Up | 28.5 | 47.0 | Low | 10:13:27 - 10:43:27 | 2674 |
| Idyllwild | 10:28:18 | -37.9 | Dark | Up | 25.9 | 45.7 | Low | 10:13:18 - 10:43:18 | 2640 |
| Henderson | 10:28:24 | -35.5 | Dark | Up | 28.5 | 47.0 | Low | 10:13:24 - 10:43:24 | 2609 |
| Laughlin/Bullhead City | 10:28:21 | -35.7 | Dark | Up | 28.2 | 46.8 | Low | 10:13:21 - 10:43:21 | 2549 |
| Mohave Valley | 10:28:20 | -35.8 | Dark | Up | 28.0 | 46.7 | Low | 10:13:20 - 10:43:20 | 2538 |
| Calipatria | 10:28:15 | -37.4 | Dark | Up | 26.2 | 45.8 | Low | 10:13:15 - 10:43:15 | 2534 |
| Kingman/Dolan Springs | 10:28:21 | -35.3 | Dark | Up | 28.5 | 46.9 | Low | 10:13:21 - 10:43:21 | 2515 |
| Patrick | 10:28:21 | -35.0 | Dark | Up | 28.8 | 47.1 | Low | 10:13:21 - 10:43:21 | 2510 |
| Lake Havasu City | 10:28:19 | -35.8 | Dark | Up | 27.9 | 46.6 | Low | 10:13:19 - 10:43:19 | 2505 |
| Parker | 10:28:18 | -36.0 | Dark | Up | 27.6 | 46.5 | Low | 10:13:18 - 10:43:18 | 2489 |
| Blythe | 10:28:16 | -36.5 | Dark | Up | 27.1 | 46.2 | Low | 10:13:16 - 10:43:16 | 2489 |
| Yuma | 10:28:13 | -37.0 | Dark | Up | 26.4 | 45.8 | Low | 10:13:13 - 10:43:13 | 2455 |
| George/Scottsdale | 10:28:14 | -34.4 | Dark | Up | 28.8 | 46.9 | Low | 10:13:14 - 10:43:14 | 2304 |
| Dunrhomin | 10:28:36 | -26.7 | Dark | Up | 37.2 | 51.9 | Up | 10:13:36 - 10:43:36 | 2119 |
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 00AF255, (2021/09/22 10:32UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 24.47 97 Merak 11:01:50.7 +56:22:57 2.4 21.60 115 9Iot UMa 08:59:11.5 +48:02:25 3.1 3.33 106 PPM 050694 08:36:40.8 +49:22:34 8.2 1.09 102 PPM 050774 08:43:04.1 +49:59:13 8.9 0.11 103 00AF255 08:42:28.7 +49:55:58 15.9 103 Positions are for J2000
Event circumstances last updated at 2021/08/25 04:09:44 UT
Marc W. Buie, Southwest Research Institute