Event between 11BN170 and star GA1140:03170929 with event index number of 2116488
Geocentric closest approach at 2022/12/27 05:47:12 UTC
J2000 position of star is 09:24:15.7 +25:44:12
Equinox of date position of star is 09:25:35.6 +25:38:13
Stellar brightness G=14.3,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 166 degrees from the moon.
Moon is 20% illuminated.
Apparent brightness V=22.2
[RECON map]
Object is 35.2 AU from the Sun
and 34.5 AU from the Earth.
Apparent velocity is 17.6
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 147 seconds.
The 1-sigma cross-track error in the shadow position is
1663 km.
The sky-plane scale is
24998.0 km/arcsec.
The object has an absolute magnitude Hv=6.7
Diameter=267.9 km assuming a 5% albedo -- 15.4 sec chord
Diameter=109.4 km assuming a 30% albedo -- 6.3 sec chord
Dynamical classification is SCATNEAR
Star training set for 11BN170, (2022/12/27 05:54UT) Object RA Dec mag sep mel Regulus 10:09:35.7 +11:51:14 1.3 17.25 176 1Kap Leo 09:25:59.3 +26:04:56 4.5 0.45 165 PPM 099543 09:25:28.0 +25:49:06 7.9 0.18 165 11BN170 09:25:35.7 +25:38:13 14.3 166 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 34.5 km
RECON observability=1.0 and success probability=5.8%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 05:52:25 | -52.9 | Dark | Down | 27.3 | 81.9 | Low | 05:39:42 - 06:05:09 | 5558 |
| Sleaford | 05:51:55 | -58.1 | Dark | Down | 36.2 | 93.7 | Up | 05:39:11 - 06:04:38 | 5539 |
| Kelowna | 05:52:26 | -53.8 | Dark | Down | 27.7 | 82.1 | Low | 05:39:43 - 06:05:10 | 5457 |
| Peachland | 05:52:27 | -53.7 | Dark | Down | 27.5 | 81.8 | Low | 05:39:43 - 06:05:10 | 5450 |
| Summerland | 05:52:28 | -53.9 | Dark | Down | 27.6 | 81.8 | Low | 05:39:45 - 06:05:12 | 5433 |
| Penticton | 05:52:27 | -53.9 | Dark | Down | 27.6 | 81.9 | Low | 05:39:43 - 06:05:10 | 5424 |
| Victoria | 05:52:35 | -52.4 | Dark | Down | 25.0 | 78.7 | Low | 05:39:52 - 06:05:19 | 5389 |
| Oliver | 05:52:28 | -54.2 | Dark | Down | 27.6 | 81.7 | Low | 05:39:45 - 06:05:12 | 5386 |
| Anarchist Mountain Observatory | 05:52:27 | -54.4 | Dark | Down | 27.7 | 81.7 | Low | 05:39:44 - 06:05:11 | 5365 |
| Okanogan | 05:52:28 | -54.6 | Dark | Down | 27.4 | 81.2 | Low | 05:39:45 - 06:05:12 | 5300 |
| Brewster | 05:52:29 | -54.6 | Dark | Down | 27.3 | 81.0 | Low | 05:39:45 - 06:05:12 | 5275 |
| Manson/Chelan | 05:52:32 | -54.5 | Dark | Down | 27.0 | 80.6 | Low | 05:39:48 - 06:05:15 | 5259 |
| Wenatchee | 05:52:31 | -54.7 | Dark | Down | 26.8 | 80.3 | Low | 05:39:48 - 06:05:15 | 5212 |
| Ellensburg | 05:52:33 | -54.8 | Dark | Down | 26.6 | 79.9 | Low | 05:39:49 - 06:05:16 | 5172 |
| Yakima | 05:52:34 | -55.0 | Dark | Down | 26.5 | 79.7 | Low | 05:39:50 - 06:05:17 | 5129 |
| Toppenish/White Swan | 05:52:34 | -55.2 | Dark | Down | 26.6 | 79.7 | Low | 05:39:50 - 06:05:17 | 5103 |
| PNWRO | 05:52:31 | -56.3 | Dark | Down | 27.5 | 80.5 | Low | 05:39:48 - 06:05:15 | 5036 |
| The Dalles | 05:52:35 | -55.1 | Dark | Down | 25.9 | 78.8 | Low | 05:39:52 - 06:05:19 | 5035 |
| Maupin | 05:52:37 | -55.4 | Dark | Down | 25.9 | 78.7 | Low | 05:39:53 - 06:05:20 | 4988 |
| Sisters | 05:52:39 | -55.5 | Dark | Down | 25.4 | 78.0 | Low | 05:39:55 - 06:05:22 | 4904 |
| Bend | 05:52:37 | -55.7 | Dark | Down | 25.5 | 78.0 | Low | 05:39:54 - 06:05:21 | 4873 |
| Oregon Observatory | 05:52:37 | -55.7 | Dark | Down | 25.4 | 77.9 | Low | 05:39:54 - 06:05:21 | 4858 |
| Chiloquin | 05:52:41 | -56.0 | Dark | Down | 24.8 | 77.0 | Low | 05:39:57 - 06:05:24 | 4725 |
| Klamath Falls | 05:52:41 | -56.2 | Dark | Down | 24.8 | 76.9 | Low | 05:39:57 - 06:05:24 | 4687 |
| Cedarville | 05:52:38 | -57.6 | Dark | Down | 25.8 | 77.5 | Low | 05:39:55 - 06:05:22 | 4579 |
| Fall River/Burney | 05:52:42 | -56.9 | Dark | Down | 24.8 | 76.6 | Low | 05:39:59 - 06:05:26 | 4553 |
| Greenville | 05:52:42 | -57.6 | Dark | Down | 24.9 | 76.4 | Low | 05:39:59 - 06:05:26 | 4446 |
| Gimple | 05:52:41 | -57.6 | Dark | Down | 25.0 | 76.5 | Low | 05:39:57 - 06:05:24 | 4444 |
| Quincy | 05:52:41 | -57.6 | Dark | Down | 24.9 | 76.4 | Low | 05:39:57 - 06:05:24 | 4424 |
| Portola | 05:52:42 | -58.0 | Dark | Down | 25.2 | 76.6 | Low | 05:39:59 - 06:05:26 | 4400 |
| Reno | 05:52:39 | -58.6 | Dark | Down | 25.6 | 76.8 | Low | 05:39:56 - 06:05:23 | 4358 |
| Carson City | 05:52:39 | -58.7 | Dark | Down | 25.6 | 76.6 | Low | 05:39:56 - 06:05:23 | 4319 |
| Gardnerville | 05:52:39 | -58.9 | Dark | Down | 25.5 | 76.5 | Low | 05:39:56 - 06:05:23 | 4292 |
| Yerington | 05:52:39 | -59.3 | Dark | Down | 26.0 | 76.9 | Low | 05:39:55 - 06:05:22 | 4285 |
| Dunrhomin | 05:52:04 | -67.6 | Dark | Down | 36.7 | 85.5 | Up | 05:39:20 - 06:04:47 | 4233 |
| Hawthorne | 05:52:39 | -59.8 | Dark | Down | 26.3 | 77.0 | Low | 05:39:55 - 06:05:22 | 4224 |
| Nikitin | 05:52:04 | -67.7 | Dark | Down | 36.7 | 85.4 | Up | 05:39:20 - 06:04:47 | 4213 |
| CU-SBO | 05:52:03 | -67.7 | Dark | Down | 36.6 | 85.3 | Up | 05:39:20 - 06:04:47 | 4207 |
| Lee Vining | 05:52:39 | -59.7 | Dark | Down | 25.8 | 76.4 | Low | 05:39:56 - 06:05:23 | 4173 |
| Bishop | 05:52:38 | -60.4 | Dark | Down | 26.2 | 76.5 | Low | 05:39:55 - 06:05:22 | 4094 |
| Beatty | 05:52:35 | -61.8 | Dark | Down | 27.4 | 77.1 | Low | 05:39:51 - 06:05:18 | 4012 |
| Patrick | 05:52:28 | -64.5 | Dark | Down | 29.3 | 77.8 | Low | 05:39:44 - 06:05:11 | 3800 |
| Laughlin/Bullhead City | 05:52:30 | -64.0 | Dark | Down | 28.7 | 77.3 | Low | 05:39:46 - 06:05:13 | 3785 |
| Wildwood | 05:52:39 | -61.2 | Dark | Down | 25.2 | 74.9 | Low | 05:39:55 - 06:05:22 | 3745 |
| Lake Havasu City | 05:52:29 | -64.4 | Dark | Down | 28.7 | 77.0 | Low | 05:39:46 - 06:05:13 | 3708 |
| Idyllwild | 05:52:36 | -62.8 | Dark | Down | 26.7 | 75.6 | Low | 05:39:52 - 06:05:19 | 3668 |
| George/Scottsdale | 05:52:22 | -66.6 | Dark | Down | 30.5 | 77.7 | Up | 05:39:39 - 06:05:06 | 3585 |
| Calipatria | 05:52:33 | -63.9 | Dark | Down | 27.5 | 75.8 | Low | 05:39:49 - 06:05:16 | 3580 |
| Yuma | 05:52:30 | -64.7 | Dark | Down | 28.1 | 76.0 | Low | 05:39:47 - 06:05:14 | 3518 |
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 11BN170, (2022/12/27 05:54UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 17.25 176 1Kap Leo 09:24:39.2 +26:10:55 4.5 0.45 165 PPM 099543 09:24:08.0 +25:55:05 7.9 0.18 165 11BN170 09:24:15.7 +25:44:12 14.3 166 Positions are for J2000
Event circumstances last updated at 2022/12/24 03:38:42 UT
Marc W. Buie, Southwest Research Institute