Event between 04EG96 and star GA0800:05034902 with event index number of 1074782
Geocentric closest approach at 2021/03/22 11:59:00 UTC
J2000 position of star is 16:08:40.1 -09:10:35
Equinox of date position of star is 16:09:48.8 -09:13:51
Stellar brightness G=10.6,
use SENSEUP=4 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 138 degrees from the moon.
Moon is 59% illuminated.
TNO apparent brightness V=23.5
[RECON map]
TNO is 33.3 AU from the Sun
and 32.8 AU from the Earth.
The TNO is moving 10.7
km/sec on the sky relative to the star, or,
1.6 arcsec/hr.
The 1-sigma error in the time of the event is 528 seconds.
The 1-sigma cross-track error in the shadow position is
4858 km.
The sky-plane scale is
23783.1 km/arcsec.
The TNO has an absolute magnitude Hv=8.1
Diameter=141.9 km assuming a 5% albedo -- 13.3 sec chord
Diameter=57.9 km assuming a 30% albedo -- 5.4 sec chord
Dynamical classification is 5:2EEE
Star training set for 04EG96, (2021/03/22 11:59UT) Object RA Dec mag sep mel Antares 16:30:42.7 -26:28:38 0.9 17.94 148 1Del Oph 16:15:27.6 -03:44:51 2.7 5.66 136 16 Sco 16:13:16.4 -08:36:03 5.7 1.06 138 PPM 199342 16:10:11.7 -09:42:10 7.9 0.48 138 PPM 199351 16:10:29.4 -09:01:30 9.5 0.26 138 04EG96 16:09:49.4 -09:13:52 10.6 138 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
1.7 sigma about the mid-time.
The median site spacing is 7.8 km
RECON observability=1.0 and success probability=3.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Dunrhomin | 12:03:07 | -11.7 | NT | Down | 39.0 | 197.5 | Up | 11:48:07 - 12:18:07 | 6584 |
| Clarence Fulton | 12:05:05 | -17.8 | AT | Down | 30.6 | 180.0 | Up | 11:50:05 - 12:20:05 | 6181 |
| Kelowna | 12:05:08 | -18.1 | Dark | Down | 31.0 | 179.8 | Up | 11:50:08 - 12:20:08 | 6158 |
| Penticton | 12:05:05 | -18.3 | Dark | Down | 31.3 | 179.7 | Up | 11:50:05 - 12:20:05 | 6140 |
| Peachland | 12:05:07 | -18.3 | Dark | Down | 31.1 | 179.5 | Up | 11:50:07 - 12:20:07 | 6138 |
| Summerland | 12:05:07 | -18.3 | Dark | Down | 31.2 | 179.6 | Up | 11:50:07 - 12:20:07 | 6137 |
| Anarchist Mountain Observatory | 12:05:00 | -18.4 | Dark | Down | 31.8 | 179.9 | Up | 11:50:00 - 12:20:00 | 6129 |
| Oliver | 12:05:03 | -18.4 | Dark | Down | 31.6 | 179.7 | Up | 11:50:03 - 12:20:03 | 6126 |
| Tonasket | 12:05:03 | -18.5 | Dark | Down | 32.1 | 179.9 | Up | 11:50:03 - 12:20:03 | 6113 |
| Okanogan | 12:05:00 | -18.8 | Dark | Down | 32.5 | 179.7 | Up | 11:50:00 - 12:20:00 | 6091 |
| Brewster | 12:05:03 | -19.0 | Dark | Down | 32.7 | 179.4 | Up | 11:50:03 - 12:20:03 | 6069 |
| Manson/Chelan | 12:05:00 | -19.3 | Dark | Down | 32.9 | 179.0 | Up | 11:50:00 - 12:20:00 | 6039 |
| PNWRO | 12:04:49 | -19.3 | Dark | Down | 34.8 | 180.4 | Up | 11:49:49 - 12:19:49 | 6029 |
| Pasco | 12:04:52 | -19.3 | Dark | Down | 34.6 | 180.2 | Up | 11:49:52 - 12:19:52 | 6026 |
| Wenatchee | 12:05:01 | -19.6 | Dark | Down | 33.4 | 178.8 | Up | 11:50:01 - 12:20:01 | 6010 |
| Ellensburg | 12:04:58 | -19.9 | Dark | Down | 33.8 | 178.5 | Up | 11:49:58 - 12:19:58 | 5979 |
| Yakima | 12:04:59 | -20.1 | Dark | Down | 34.2 | 178.5 | Up | 11:49:59 - 12:19:59 | 5961 |
| Toppenish/White Swan | 12:04:54 | -20.1 | Dark | Down | 34.4 | 178.7 | Up | 11:49:54 - 12:19:54 | 5960 |
| Goldendale | 12:04:54 | -20.6 | Dark | Down | 35.0 | 178.1 | Up | 11:49:54 - 12:19:54 | 5911 |
| Victoria | 12:05:20 | -20.9 | Dark | Down | 32.2 | 175.3 | Up | 11:50:20 - 12:20:20 | 5891 |
| The Dalles | 12:04:56 | -20.9 | Dark | Down | 35.2 | 177.7 | Up | 11:49:56 - 12:19:56 | 5880 |
| George/Scottsdale | 12:03:05 | -18.3 | Dark | Down | 46.6 | 190.0 | Up | 11:48:05 - 12:18:05 | 5879 |
| Maupin | 12:04:53 | -21.0 | Dark | Down | 35.6 | 177.8 | Up | 11:49:53 - 12:19:53 | 5867 |
| Patrick | 12:03:25 | -19.4 | Dark | Down | 45.2 | 187.1 | Up | 11:48:25 - 12:18:25 | 5835 |
| Redmond | 12:04:51 | -21.4 | Dark | Down | 36.5 | 177.7 | Up | 11:49:51 - 12:19:51 | 5819 |
| Kingman/Dolan Springs | 12:03:26 | -19.6 | Dark | Down | 45.4 | 186.8 | Up | 11:48:26 - 12:18:26 | 5811 |
| Bend | 12:04:49 | -21.6 | Dark | Down | 36.7 | 177.5 | Up | 11:49:49 - 12:19:49 | 5801 |
| Sisters | 12:04:56 | -21.7 | Dark | Down | 36.5 | 177.2 | Up | 11:49:56 - 12:19:56 | 5797 |
| Henderson | 12:03:35 | -20.1 | Dark | Down | 44.6 | 185.5 | Up | 11:48:35 - 12:18:35 | 5794 |
| North Lake | 12:04:46 | -21.7 | Dark | Down | 37.6 | 177.9 | Up | 11:49:46 - 12:19:46 | 5786 |
| Oregon Observatory | 12:04:49 | -21.8 | Dark | Down | 36.9 | 177.3 | Up | 11:49:49 - 12:19:49 | 5785 |
| Paisley | 12:04:40 | -21.7 | Dark | Down | 38.1 | 178.3 | Up | 11:49:40 - 12:19:40 | 5781 |
| Indian Springs | 12:03:42 | -20.4 | Dark | Down | 44.1 | 184.5 | Up | 11:48:42 - 12:18:42 | 5777 |
| Laughlin/Bullhead City | 12:03:28 | -20.0 | Dark | Down | 45.5 | 186.1 | Up | 11:48:28 - 12:18:28 | 5776 |
| La Pine/Gilchrist | 12:04:53 | -21.9 | Dark | Down | 37.1 | 177.2 | Up | 11:49:53 - 12:19:53 | 5771 |
| Lakeview | 12:04:39 | -21.8 | Dark | Down | 38.6 | 178.6 | Up | 11:49:39 - 12:19:39 | 5767 |
| Mohave Valley | 12:03:27 | -20.1 | Dark | Down | 45.7 | 186.2 | Up | 11:48:27 - 12:18:27 | 5762 |
| Lake Havasu City | 12:03:23 | -20.0 | Dark | Down | 46.1 | 186.5 | Up | 11:48:23 - 12:18:23 | 5758 |
| Tonopah | 12:04:03 | -21.1 | Dark | Down | 42.7 | 182.5 | Up | 11:49:03 - 12:19:03 | 5755 |
| Cedarville | 12:04:33 | -21.9 | Dark | Down | 39.3 | 178.7 | Up | 11:49:33 - 12:19:33 | 5745 |
| Parker | 12:03:22 | -20.1 | Dark | Down | 46.5 | 186.6 | Up | 11:48:22 - 12:18:22 | 5742 |
| Beatty | 12:03:51 | -21.1 | Dark | Down | 43.9 | 183.1 | Up | 11:48:51 - 12:18:51 | 5724 |
| Blythe | 12:03:21 | -20.5 | Dark | Down | 47.0 | 186.2 | Up | 11:48:21 - 12:18:21 | 5694 |
| Hawthorne | 12:04:10 | -21.9 | Dark | Down | 42.3 | 180.6 | Up | 11:49:10 - 12:19:10 | 5689 |
| Klamath Falls | 12:04:42 | -22.7 | Dark | Down | 38.5 | 176.8 | Up | 11:49:42 - 12:19:42 | 5683 |
| Yerington | 12:04:16 | -22.2 | Dark | Down | 41.8 | 179.9 | Up | 11:49:16 - 12:19:16 | 5680 |
| Reno | 12:04:21 | -22.4 | Dark | Down | 41.3 | 179.1 | Up | 11:49:21 - 12:19:21 | 5667 |
| Susanville | 12:04:31 | -22.7 | Dark | Down | 40.4 | 178.1 | Up | 11:49:31 - 12:19:31 | 5660 |
| Carson City | 12:04:21 | -22.5 | Dark | Down | 41.6 | 179.1 | Up | 11:49:21 - 12:19:21 | 5650 |
| Fall River/Burney | 12:04:37 | -22.9 | Dark | Down | 39.7 | 177.2 | Up | 11:49:37 - 12:19:37 | 5646 |
| Bishop | 12:04:02 | -22.2 | Dark | Down | 43.5 | 180.9 | Up | 11:49:02 - 12:19:02 | 5644 |
| Yuma | 12:03:18 | -20.8 | Dark | Down | 47.9 | 186.3 | Up | 11:48:18 - 12:18:18 | 5642 |
| Gardnerville | 12:04:17 | -22.6 | Dark | Down | 41.9 | 179.2 | Up | 11:49:17 - 12:19:17 | 5640 |
| Portola | 12:04:26 | -22.8 | Dark | Down | 41.0 | 178.3 | Up | 11:49:26 - 12:19:26 | 5640 |
| Gimple | 12:04:30 | -22.9 | Dark | Down | 40.7 | 177.8 | Up | 11:49:30 - 12:19:30 | 5632 |
| Lee Vining | 12:04:10 | -22.5 | Dark | Down | 42.9 | 180.0 | Up | 11:49:10 - 12:19:10 | 5629 |
| Greenville | 12:04:28 | -23.0 | Dark | Down | 40.7 | 177.7 | Up | 11:49:28 - 12:19:28 | 5627 |
| Quincy | 12:04:29 | -23.1 | Dark | Down | 40.9 | 177.7 | Up | 11:49:29 - 12:19:29 | 5617 |
| Calipatria | 12:03:24 | -21.3 | Dark | Down | 47.6 | 184.9 | Up | 11:48:24 - 12:18:24 | 5605 |
| Idyllwild | 12:03:32 | -22.1 | Dark | Down | 47.0 | 183.2 | Up | 11:48:32 - 12:18:32 | 5560 |
| Wildwood | 12:03:47 | -23.4 | Dark | Down | 46.7 | 180.6 | Up | 11:48:47 - 12:18:47 | 5453 |
| CPSLO | 12:04:03 | -24.6 | Dark | Down | 45.5 | 177.7 | Up | 11:49:03 - 12:19:03 | 5384 |
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 04EG96, (2021/03/22 11:59UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 17.94 148 1Del Oph 16:14:20.7 -03:41:43 2.7 5.66 136 16 Sco 16:12:07.4 -08:32:51 5.7 1.06 138 PPM 199342 16:09:02.1 -09:38:53 7.9 0.48 138 PPM 199351 16:09:20.1 -08:58:13 9.5 0.26 138 04EG96 16:08:40.1 -09:10:35 10.6 138 Positions are for J2000
Event circumstances last updated at 2021/01/19 21:21:34 UT
Marc W. Buie, Southwest Research Institute