Event between (69986) 98WW24 and star GA1020:01844461 with event index number of 1244227
Geocentric closest approach at 2022/12/21 02:40:07 UTC
J2000 position of star is 06:27:35.7 +13:28:21
Equinox of date position of star is 06:28:52.9 +13:27:25
Stellar brightness G=14.0,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 139 degrees from the moon.
Moon is 8% illuminated.
TNO apparent brightness V=24.1
[RECON map]
TNO is 35.7 AU from the Sun
and 34.7 AU from the Earth.
The TNO is moving 25.0
km/sec on the sky relative to the star, or,
3.6 arcsec/hr.
The 1-sigma error in the time of the event is 311 seconds.
The 1-sigma cross-track error in the shadow position is
2206 km.
The sky-plane scale is
25164.5 km/arcsec.
The TNO has an absolute magnitude Hv=8.6
Diameter=131.8 km assuming a 5% albedo -- 4.6 sec chord
Diameter=53.8 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is 3:2E
Star training set for 69986, (2022/12/21 02:40UT) Object RA Dec mag sep mel Betelgeuse 05:56:25.0 +07:24:34 0.4 10.01 144 Alhena 06:39:02.3 +16:22:40 1.9 3.81 137 PPM 122497 06:28:34.6 +14:52:25 6.2 1.42 140 PPM 122480 06:27:56.9 +13:05:07 7.0 0.44 139 PPM 122470 06:27:23.8 +13:36:29 9.6 0.39 139 69986 06:28:53.6 +13:27:24 14.0 139 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
2.9 sigma about the mid-time.
The median site spacing is 0.0 km
RECON observability=0.1 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) |
| Kamloops | 02:42:47 | -24.7 | Dark | Down | 12.3 | 83.7 | Really Low | 02:27:47 - 02:57:47 | 7146 |
| Kelowna | 02:42:50 | -25.1 | Dark | Down | 12.8 | 84.2 | Really Low | 02:27:50 - 02:57:50 | 7075 |
| Peachland | 02:42:50 | -24.9 | Dark | Down | 12.6 | 84.0 | Really Low | 02:27:50 - 02:57:50 | 7072 |
| Summerland | 02:42:51 | -25.0 | Dark | Down | 12.7 | 84.0 | Really Low | 02:27:51 - 02:57:51 | 7060 |
| Penticton | 02:42:51 | -25.0 | Dark | Down | 12.7 | 84.1 | Really Low | 02:27:51 - 02:57:51 | 7053 |
| Victoria | 02:42:55 | -22.4 | Dark | Down | 10.1 | 81.0 | Really Low | 02:27:55 - 02:57:55 | 7047 |
| Oliver | 02:42:52 | -25.0 | Dark | Down | 12.7 | 84.0 | Really Low | 02:27:52 - 02:57:52 | 7028 |
| Sleaford | 02:42:35 | -33.7 | Dark | Down | 21.3 | 95.4 | Low | 02:27:35 - 02:57:35 | 7014 |
| Anarchist Mountain Observatory | 02:42:53 | -25.1 | Dark | Down | 12.8 | 84.1 | Really Low | 02:27:53 - 02:57:53 | 7013 |
| Tonasket | 02:42:54 | -25.0 | Dark | Down | 12.7 | 84.0 | Really Low | 02:27:54 - 02:57:54 | 6992 |
| Okanogan | 02:42:55 | -24.9 | Dark | Down | 12.6 | 83.8 | Really Low | 02:27:55 - 02:57:55 | 6970 |
| Brewster | 02:42:56 | -24.7 | Dark | Down | 12.4 | 83.6 | Really Low | 02:27:56 - 02:57:56 | 6954 |
| Manson/Chelan | 02:42:56 | -24.4 | Dark | Down | 12.2 | 83.3 | Really Low | 02:27:56 - 02:57:56 | 6945 |
| Wenatchee | 02:42:58 | -24.3 | Dark | Down | 12.0 | 83.1 | Really Low | 02:27:58 - 02:57:58 | 6914 |
| Ellensburg | 02:43:00 | -24.0 | Dark | Down | 11.8 | 82.8 | Really Low | 02:28:00 - 02:58:00 | 6887 |
| Yakima | 02:43:01 | -24.0 | Dark | Down | 11.8 | 82.7 | Really Low | 02:28:01 - 02:58:01 | 6857 |
| Toppenish/White Swan | 02:43:01 | -24.1 | Dark | Down | 11.8 | 82.8 | Really Low | 02:28:01 - 02:58:01 | 6838 |
| Goldendale | 02:43:03 | -23.7 | Dark | Down | 11.5 | 82.4 | Really Low | 02:28:03 - 02:58:03 | 6805 |
| The Dalles | 02:43:04 | -23.4 | Dark | Down | 11.2 | 82.1 | Really Low | 02:28:04 - 02:58:04 | 6794 |
| PNWRO | 02:43:03 | -25.0 | Dark | Down | 12.8 | 83.8 | Really Low | 02:28:03 - 02:58:03 | 6784 |
| Maupin | 02:43:05 | -23.4 | Dark | Down | 11.2 | 82.1 | Really Low | 02:28:05 - 02:58:05 | 6760 |
| Sisters | 02:43:08 | -22.9 | Dark | Down | 10.8 | 81.6 | Really Low | 02:28:08 - 02:58:08 | 6702 |
| Bend | 02:43:09 | -23.0 | Dark | Down | 10.9 | 81.7 | Really Low | 02:28:09 - 02:58:09 | 6679 |
| Oregon Observatory | 02:43:10 | -22.9 | Dark | Down | 10.8 | 81.6 | Really Low | 02:28:10 - 02:58:10 | 6668 |
| North Lake | 02:43:12 | -23.2 | Dark | Down | 11.1 | 81.9 | Really Low | 02:28:12 - 02:58:12 | 6608 |
| Chiloquin | 02:43:13 | -22.4 | Dark | Down | 10.3 | 81.1 | Really Low | 02:28:13 - 02:58:13 | 6573 |
| Klamath Falls | 02:43:15 | -22.4 | Dark | Down | 10.3 | 81.1 | Really Low | 02:28:15 - 02:58:15 | 6544 |
| Lakeview | 02:43:15 | -23.4 | Dark | Down | 11.4 | 82.0 | Really Low | 02:28:15 - 02:58:15 | 6514 |
| Cedarville | 02:43:17 | -23.4 | Dark | Down | 11.4 | 82.0 | Really Low | 02:28:17 - 02:58:17 | 6457 |
| Fall River/Burney | 02:43:18 | -22.4 | Dark | Down | 10.4 | 81.1 | Really Low | 02:28:18 - 02:58:18 | 6442 |
| Susanville | 02:43:20 | -22.8 | Dark | Down | 10.9 | 81.5 | Really Low | 02:28:20 - 02:58:20 | 6375 |
| Greenville | 02:43:21 | -22.5 | Dark | Down | 10.6 | 81.3 | Really Low | 02:28:21 - 02:58:21 | 6358 |
| Gimple | 02:43:20 | -22.6 | Dark | Down | 10.7 | 81.3 | Really Low | 02:28:20 - 02:58:20 | 6357 |
| Quincy | 02:43:21 | -22.5 | Dark | Down | 10.6 | 81.2 | Really Low | 02:28:21 - 02:58:21 | 6342 |
| Portola | 02:43:22 | -22.8 | Dark | Down | 11.0 | 81.5 | Really Low | 02:28:22 - 02:58:22 | 6322 |
| Reno | 02:43:22 | -23.3 | Dark | Down | 11.4 | 81.9 | Really Low | 02:28:22 - 02:58:22 | 6287 |
| Carson City | 02:43:23 | -23.2 | Dark | Down | 11.4 | 81.8 | Really Low | 02:28:23 - 02:58:23 | 6256 |
| Gardnerville | 02:43:24 | -23.2 | Dark | Down | 11.4 | 81.8 | Really Low | 02:28:24 - 02:58:24 | 6235 |
| Yerington | 02:43:24 | -23.7 | Dark | Down | 11.8 | 82.2 | Really Low | 02:28:24 - 02:58:24 | 6227 |
| Hawthorne | 02:43:25 | -24.0 | Dark | Down | 12.2 | 82.4 | Really Low | 02:28:25 - 02:58:25 | 6177 |
| Lee Vining | 02:43:27 | -23.5 | Dark | Down | 11.7 | 82.0 | Really Low | 02:28:27 - 02:58:27 | 6139 |
| Tonopah | 02:43:26 | -25.0 | Dark | Down | 13.2 | 83.1 | Really Low | 02:28:26 - 02:58:26 | 6108 |
| Bishop | 02:43:28 | -23.9 | Dark | Down | 12.2 | 82.3 | Really Low | 02:28:28 - 02:58:28 | 6072 |
| Dunrhomin | 02:43:12 | -34.5 | Dark | Down | 22.6 | 91.3 | Low | 02:28:12 - 02:58:12 | 6059 |
| CU-SBO | 02:43:12 | -34.4 | Dark | Down | 22.6 | 91.1 | Low | 02:28:12 - 02:58:12 | 6039 |
| Beatty | 02:43:29 | -25.1 | Dark | Down | 13.5 | 83.1 | Really Low | 02:28:29 - 02:58:29 | 5998 |
| Indian Springs | 02:43:30 | -25.9 | Dark | Down | 14.3 | 83.7 | Really Low | 02:28:30 - 02:58:30 | 5947 |
| Henderson | 02:43:30 | -26.4 | Dark | Down | 14.8 | 83.9 | Really Low | 02:28:30 - 02:58:30 | 5885 |
| Patrick | 02:43:31 | -27.1 | Dark | Down | 15.6 | 84.4 | Really Low | 02:28:31 - 02:58:31 | 5805 |
| Laughlin/Bullhead City | 02:43:33 | -26.5 | Dark | Down | 15.0 | 83.9 | Really Low | 02:28:33 - 02:58:33 | 5798 |
| Kingman/Dolan Springs | 02:43:32 | -26.9 | Dark | Down | 15.5 | 84.2 | Really Low | 02:28:32 - 02:58:32 | 5789 |
| Wildwood | 02:43:37 | -23.1 | Dark | Down | 11.6 | 81.5 | Really Low | 02:28:37 - 02:58:37 | 5787 |
| Mohave Valley | 02:43:33 | -26.5 | Dark | Down | 15.0 | 83.9 | Really Low | 02:28:33 - 02:58:33 | 5773 |
| Lake Havasu City | 02:43:34 | -26.6 | Dark | Down | 15.2 | 83.9 | Really Low | 02:28:34 - 02:58:34 | 5732 |
| Idyllwild | 02:43:37 | -24.5 | Dark | Down | 13.1 | 82.4 | Really Low | 02:28:37 - 02:58:37 | 5715 |
| Parker | 02:43:35 | -26.6 | Dark | Down | 15.2 | 83.8 | Really Low | 02:28:35 - 02:58:35 | 5699 |
| Calipatria | 02:43:38 | -25.4 | Dark | Down | 14.0 | 82.9 | Really Low | 02:28:38 - 02:58:38 | 5633 |
| George/Scottsdale | 02:43:34 | -28.5 | Dark | Down | 17.1 | 85.0 | Really Low | 02:28:34 - 02:58:34 | 5608 |
| Yuma | 02:43:38 | -26.0 | Dark | Down | 14.7 | 83.3 | Really Low | 02:28:38 - 02:58:38 | 5574 |
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 69986, (2022/12/21 02:40UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 10.01 144 Alhena 06:37:42.8 +16:23:57 1.9 3.81 137 PPM 122497 06:27:15.8 +14:53:21 6.2 1.42 140 PPM 122480 06:26:39.2 +13:06:02 7.0 0.44 139 PPM 122470 06:26:05.7 +13:37:23 9.6 0.39 139 69986 06:27:35.7 +13:28:21 14.0 139 Positions are for J2000
Event circumstances last updated at 2022/10/03 04:14:22 UT
Marc W. Buie, Southwest Research Institute