Event between (558095) 14WA536 and star GA0680:05119284 with event index number of 2560859
Geocentric closest approach at 2028/02/26 09:31:32 UTC
J2000 position of star is 10:32:00.4 -20:54:10
Equinox of date position of star is 10:33:10.5 -21:01:42
Stellar brightness G=13.5,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 156 degrees from the moon.
Moon is 1% illuminated.
Apparent brightness V=22.0
[RECON map]
Object is 30.6 AU from the Sun
and 29.7 AU from the Earth.
Apparent velocity is 23.2
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 105 seconds.
The 1-sigma cross-track error in the shadow position is
1766 km.
The sky-plane scale is
21539.3 km/arcsec.
The object has an absolute magnitude Hv=7.1
Diameter=222.9 km assuming a 5% albedo -- 9.8 sec chord
Diameter=91.0 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is 5:2EEE
Star training set for 558095, (2028/02/26 09:34UT) Object RA Dec mag sep mel Regulus 10:09:52.2 +11:49:43 1.3 33.38 162 Alphard 09:28:58.3 -08:46:55 2.0 19.78 153 PPM 257864 10:36:18.3 -23:19:20 6.2 2.37 154 PPM 257835 10:34:52.2 -20:19:38 8.5 0.80 157 PPM 257808 10:33:48.3 -20:56:54 9.2 0.14 156 558095 10:33:21.6 -21:02:54 13.5 156 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 13.9 km
RECON observability=0.7 and success probability=2.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 09:31:11 | -38.8 | Dark | Down | 11.0 | 212.8 | Really Low | 09:21:57 - 09:40:26 | 4220 |
| Kamloops | 09:31:46 | -45.2 | Dark | Down | 16.2 | 199.8 | Really Low | 09:22:31 - 09:41:00 | 4093 |
| Kelowna | 09:31:43 | -45.6 | Dark | Down | 16.8 | 200.7 | Really Low | 09:22:28 - 09:40:57 | 4079 |
| Peachland | 09:31:43 | -45.8 | Dark | Down | 16.9 | 200.4 | Really Low | 09:22:29 - 09:40:58 | 4073 |
| Summerland | 09:31:42 | -45.9 | Dark | Down | 17.1 | 200.5 | Really Low | 09:22:28 - 09:40:57 | 4070 |
| Penticton | 09:31:42 | -46.0 | Dark | Down | 17.1 | 200.6 | Really Low | 09:22:27 - 09:40:56 | 4069 |
| Oliver | 09:31:41 | -46.3 | Dark | Down | 17.4 | 200.7 | Really Low | 09:22:27 - 09:40:56 | 4058 |
| Anarchist Mountain Observatory | 09:31:40 | -46.4 | Dark | Down | 17.5 | 200.9 | Really Low | 09:22:26 - 09:40:55 | 4056 |
| Okanogan | 09:31:40 | -47.0 | Dark | Down | 18.2 | 200.7 | Really Low | 09:22:25 - 09:40:54 | 4033 |
| Brewster | 09:31:40 | -47.3 | Dark | Down | 18.5 | 200.6 | Really Low | 09:22:26 - 09:40:55 | 4023 |
| Manson/Chelan | 09:31:41 | -47.6 | Dark | Down | 18.8 | 200.2 | Really Low | 09:22:26 - 09:40:55 | 4012 |
| Victoria | 09:31:51 | -48.0 | Dark | Down | 18.9 | 197.1 | Really Low | 09:22:36 - 09:41:05 | 3995 |
| Wenatchee | 09:31:40 | -48.1 | Dark | Down | 19.3 | 200.1 | Really Low | 09:22:25 - 09:40:54 | 3995 |
| Ellensburg | 09:31:40 | -48.5 | Dark | Down | 19.7 | 200.0 | Really Low | 09:22:26 - 09:40:55 | 3979 |
| Yakima | 09:31:39 | -48.9 | Dark | Down | 20.1 | 200.0 | Low | 09:22:25 - 09:40:54 | 3964 |
| PNWRO | 09:31:34 | -48.8 | Dark | Down | 20.2 | 201.7 | Low | 09:22:19 - 09:40:48 | 3962 |
| Toppenish/White Swan | 09:31:39 | -49.0 | Dark | Down | 20.3 | 200.2 | Low | 09:22:24 - 09:40:53 | 3959 |
| The Dalles | 09:31:40 | -49.9 | Dark | Down | 21.2 | 199.5 | Low | 09:22:26 - 09:40:55 | 3922 |
| Maupin | 09:31:39 | -50.3 | Dark | Down | 21.5 | 199.7 | Low | 09:22:24 - 09:40:53 | 3908 |
| Sisters | 09:31:40 | -51.2 | Dark | Down | 22.5 | 199.3 | Low | 09:22:25 - 09:40:54 | 3869 |
| Bend | 09:31:38 | -51.3 | Dark | Down | 22.7 | 199.6 | Low | 09:22:23 - 09:40:52 | 3863 |
| Oregon Observatory | 09:31:38 | -51.5 | Dark | Down | 22.9 | 199.5 | Low | 09:22:23 - 09:40:52 | 3854 |
| Dunrhomin | 09:30:40 | -46.3 | Dark | Down | 20.6 | 215.2 | Low | 09:21:25 - 09:39:54 | 3828 |
| Nikitin | 09:30:39 | -46.4 | Dark | Down | 20.7 | 215.2 | Low | 09:21:25 - 09:39:54 | 3819 |
| CU-SBO | 09:30:39 | -46.5 | Dark | Down | 20.8 | 215.2 | Low | 09:21:25 - 09:39:54 | 3816 |
| Chiloquin | 09:31:37 | -52.8 | Dark | Down | 24.2 | 199.3 | Low | 09:22:23 - 09:40:52 | 3795 |
| Klamath Falls | 09:31:36 | -53.1 | Dark | Down | 24.5 | 199.4 | Low | 09:22:22 - 09:40:51 | 3782 |
| Cedarville | 09:31:30 | -53.1 | Dark | Down | 24.7 | 201.1 | Low | 09:22:16 - 09:40:45 | 3772 |
| Fall River/Burney | 09:31:34 | -54.0 | Dark | Down | 25.5 | 200.0 | Low | 09:22:19 - 09:40:48 | 3735 |
| Gimple | 09:31:31 | -54.5 | Dark | Down | 26.2 | 200.6 | Low | 09:22:16 - 09:40:45 | 3701 |
| Greenville | 09:31:31 | -54.5 | Dark | Down | 26.3 | 200.6 | Low | 09:22:16 - 09:40:45 | 3700 |
| Portola | 09:31:29 | -54.6 | Dark | Down | 26.4 | 201.1 | Low | 09:22:14 - 09:40:43 | 3691 |
| Quincy | 09:31:30 | -54.7 | Dark | Down | 26.4 | 200.6 | Low | 09:22:16 - 09:40:45 | 3690 |
| Reno | 09:31:25 | -54.6 | Dark | Down | 26.5 | 201.8 | Low | 09:22:11 - 09:40:40 | 3686 |
| Carson City | 09:31:25 | -54.8 | Dark | Down | 26.8 | 201.9 | Low | 09:22:10 - 09:40:39 | 3669 |
| Yerington | 09:31:22 | -54.7 | Dark | Down | 26.8 | 202.5 | Low | 09:22:08 - 09:40:37 | 3668 |
| Gardnerville | 09:31:25 | -55.0 | Dark | Down | 27.0 | 201.9 | Low | 09:22:10 - 09:40:39 | 3658 |
| Hawthorne | 09:31:20 | -54.8 | Dark | Down | 27.1 | 203.1 | Low | 09:22:05 - 09:40:34 | 3651 |
| Lee Vining | 09:31:21 | -55.5 | Dark | Down | 27.8 | 202.7 | Low | 09:22:06 - 09:40:35 | 3619 |
| Bishop | 09:31:17 | -55.6 | Dark | Down | 28.1 | 203.6 | Low | 09:22:02 - 09:40:31 | 3596 |
| Beatty | 09:31:11 | -55.1 | Dark | Down | 28.0 | 205.3 | Low | 09:21:56 - 09:40:25 | 3591 |
| Patrick | 09:30:58 | -54.6 | Dark | Down | 28.3 | 208.4 | Low | 09:21:43 - 09:40:12 | 3541 |
| Laughlin/Bullhead City | 09:31:00 | -55.2 | Dark | Down | 28.8 | 207.8 | Low | 09:21:45 - 09:40:14 | 3521 |
| Lake Havasu City | 09:30:58 | -55.5 | Dark | Down | 29.3 | 208.2 | Low | 09:21:43 - 09:40:12 | 3487 |
| George/Scottsdale | 09:30:47 | -54.4 | Dark | Down | 29.0 | 210.8 | Low | 09:21:33 - 09:40:02 | 3465 |
| Idyllwild | 09:31:05 | -57.4 | Dark | Down | 30.8 | 206.1 | Up | 09:21:50 - 09:40:19 | 3422 |
| Wildwood | 09:31:12 | -58.2 | Dark | Down | 31.2 | 204.1 | Up | 09:21:58 - 09:40:27 | 3419 |
| Calipatria | 09:30:59 | -57.1 | Dark | Down | 30.9 | 207.4 | Up | 09:21:45 - 09:40:14 | 3398 |
| Yuma | 09:30:55 | -56.9 | Dark | Down | 31.0 | 208.4 | Up | 09:21:41 - 09:40:10 | 3383 |
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 558095, (2028/02/26 09:34UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 33.38 162 Alphard 09:27:35.2 -08:39:30 2.0 19.78 153 PPM 257864 10:34:57.6 -23:10:33 6.2 2.37 154 PPM 257835 10:33:30.7 -20:10:52 8.5 0.80 157 PPM 257808 10:32:27.1 -20:48:10 9.2 0.14 156 558095 10:32:00.4 -20:54:10 13.5 156 Positions are for J2000
Event circumstances last updated at 2024/04/18 03:52:48 UT
Marc W. Buie, Southwest Research Institute