Event between (535020) 14WG509 and star GA0960:00685100 with event index number of 2262006
Geocentric closest approach at 2028/04/08 03:49:46 UTC
J2000 position of star is 05:16:01.1 +06:28:49
Equinox of date position of star is 05:17:18.4 +06:30:20
Stellar brightness G=14.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 101 degrees from the moon.
Moon is 97% illuminated.
Apparent brightness V=22.4
[RECON map]
Object is 44.5 AU from the Sun
and 45.0 AU from the Earth.
Apparent velocity is 20.4
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 225 seconds.
The 1-sigma cross-track error in the shadow position is
2796 km.
The sky-plane scale is
32625.4 km/arcsec.
The object has an absolute magnitude Hv=5.8
Diameter=403.7 km assuming a 5% albedo -- 20.0 sec chord
Diameter=164.8 km assuming a 30% albedo -- 8.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 535020, (2028/04/08 03:57UT) Object RA Dec mag sep mel Betelgeuse 05:56:42.2 +07:24:36 0.4 9.76 91 Bellatrix 05:26:38.9 +06:22:22 1.6 2.27 98 PPM 148872 05:25:01.5 +05:20:51 6.2 2.19 99 PPM 148676 05:16:58.1 +07:05:07 8.5 0.59 101 PPM 148665 05:16:39.3 +06:28:16 10.0 0.22 101 535020 05:17:32.3 +06:30:36 14.4 100 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
4.0 sigma about the mid-time.
The median site spacing is 49.6 km
RECON observability=0.4 and success probability=4.4%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 03:54:18 | -17.9 | AT | Up | 17.0 | 258.5 | Really Low | 03:39:18 - 04:09:18 | 6174 |
| Kamloops | 03:53:59 | -11.1 | NT | Up | 26.0 | 246.6 | Low | 03:38:59 - 04:08:59 | 6161 |
| Kelowna | 03:54:02 | -12.0 | NT | Up | 25.8 | 247.7 | Low | 03:39:02 - 04:09:02 | 6068 |
| Peachland | 03:54:02 | -11.9 | NT | Up | 26.0 | 247.5 | Low | 03:39:02 - 04:09:02 | 6060 |
| Summerland | 03:54:00 | -12.0 | NT | Up | 26.0 | 247.7 | Low | 03:39:00 - 04:09:00 | 6044 |
| Penticton | 03:54:02 | -12.1 | AT | Up | 26.0 | 247.8 | Low | 03:39:02 - 04:09:02 | 6035 |
| Oliver | 03:54:01 | -12.2 | AT | Up | 26.1 | 247.9 | Low | 03:39:01 - 04:09:01 | 6000 |
| Victoria | 03:53:56 | -10.2 | NT | Up | 28.7 | 244.8 | Low | 03:38:56 - 04:08:56 | 5989 |
| Anarchist Mountain Observatory | 03:54:03 | -12.4 | AT | Up | 26.1 | 248.2 | Low | 03:39:03 - 04:09:03 | 5980 |
| Okanogan | 03:54:02 | -12.6 | AT | Up | 26.4 | 248.3 | Low | 03:39:02 - 04:09:02 | 5917 |
| Brewster | 03:54:03 | -12.6 | AT | Up | 26.7 | 248.3 | Low | 03:39:03 - 04:09:03 | 5892 |
| Manson/Chelan | 03:54:03 | -12.5 | AT | Up | 27.0 | 248.0 | Low | 03:39:03 - 04:09:03 | 5876 |
| Wenatchee | 03:54:03 | -12.6 | AT | Up | 27.3 | 248.1 | Low | 03:39:03 - 04:09:03 | 5829 |
| Ellensburg | 03:54:03 | -12.6 | AT | Up | 27.5 | 248.1 | Low | 03:39:03 - 04:09:03 | 5790 |
| Yakima | 03:54:03 | -12.8 | AT | Up | 27.7 | 248.3 | Low | 03:39:03 - 04:09:03 | 5748 |
| Toppenish/White Swan | 03:54:03 | -13.0 | AT | Up | 27.7 | 248.6 | Low | 03:39:03 - 04:09:03 | 5723 |
| PNWRO | 03:54:07 | -14.1 | AT | Up | 26.8 | 250.0 | Low | 03:39:07 - 04:09:07 | 5664 |
| The Dalles | 03:54:02 | -12.8 | AT | Up | 28.5 | 248.3 | Low | 03:39:02 - 04:09:02 | 5655 |
| Maupin | 03:54:02 | -13.1 | AT | Up | 28.6 | 248.6 | Low | 03:39:02 - 04:09:02 | 5610 |
| Sisters | 03:54:03 | -13.1 | AT | Up | 29.2 | 248.6 | Low | 03:39:03 - 04:09:03 | 5526 |
| Bend | 03:54:02 | -13.4 | AT | Up | 29.1 | 248.9 | Low | 03:39:02 - 04:09:02 | 5497 |
| Oregon Observatory | 03:54:03 | -13.4 | AT | Up | 29.3 | 248.9 | Low | 03:39:03 - 04:09:03 | 5481 |
| Chiloquin | 03:54:03 | -13.6 | AT | Up | 30.0 | 249.3 | Up | 03:39:03 - 04:09:03 | 5350 |
| Klamath Falls | 03:54:04 | -13.8 | AT | Up | 30.1 | 249.5 | Up | 03:39:04 - 04:09:04 | 5313 |
| Cedarville | 03:54:09 | -15.2 | AT | Up | 29.2 | 251.2 | Low | 03:39:09 - 04:09:09 | 5213 |
| Fall River/Burney | 03:54:05 | -14.6 | AT | Up | 30.2 | 250.5 | Up | 03:39:05 - 04:09:05 | 5182 |
| Greenville | 03:54:06 | -15.2 | AT | Up | 30.2 | 251.3 | Up | 03:39:06 - 04:09:06 | 5079 |
| Gimple | 03:54:07 | -15.3 | AT | Up | 30.1 | 251.4 | Up | 03:39:07 - 04:09:07 | 5077 |
| Quincy | 03:54:07 | -15.3 | AT | Up | 30.3 | 251.5 | Up | 03:39:07 - 04:09:07 | 5057 |
| Portola | 03:54:08 | -15.7 | AT | Up | 29.9 | 251.9 | Low | 03:39:08 - 04:09:08 | 5035 |
| Reno | 03:54:10 | -16.3 | AT | Up | 29.5 | 252.6 | Low | 03:39:10 - 04:09:10 | 4997 |
| Carson City | 03:54:09 | -16.4 | AT | Up | 29.6 | 252.8 | Low | 03:39:09 - 04:09:09 | 4958 |
| Gardnerville | 03:54:10 | -16.6 | AT | Up | 29.7 | 252.9 | Low | 03:39:10 - 04:09:10 | 4931 |
| Yerington | 03:54:12 | -17.0 | AT | Up | 29.2 | 253.4 | Low | 03:39:12 - 04:09:12 | 4927 |
| Dunrhomin | 03:54:35 | -25.7 | Dark | Up | 18.3 | 262.8 | Really Low | 03:39:35 - 04:09:35 | 4917 |
| Nikitin | 03:54:35 | -25.8 | Dark | Up | 18.4 | 262.9 | Really Low | 03:39:35 - 04:09:35 | 4897 |
| CU-SBO | 03:54:37 | -25.8 | Dark | Up | 18.4 | 262.9 | Really Low | 03:39:37 - 04:09:37 | 4891 |
| Hawthorne | 03:54:12 | -17.6 | AT | Up | 28.9 | 254.0 | Low | 03:39:12 - 04:09:12 | 4869 |
| Lee Vining | 03:54:12 | -17.4 | AT | Up | 29.5 | 254.0 | Low | 03:39:12 - 04:09:12 | 4816 |
| Bishop | 03:54:14 | -18.2 | Dark | Up | 29.1 | 254.8 | Low | 03:39:14 - 04:09:14 | 4740 |
| Beatty | 03:54:17 | -19.6 | Dark | Up | 27.9 | 256.2 | Low | 03:39:17 - 04:09:17 | 4666 |
| Patrick | 03:54:25 | -22.4 | Dark | Up | 25.9 | 259.0 | Low | 03:39:25 - 04:09:25 | 4465 |
| Laughlin/Bullhead City | 03:54:23 | -22.0 | Dark | Up | 26.5 | 258.6 | Low | 03:39:23 - 04:09:23 | 4448 |
| Wildwood | 03:54:14 | -19.4 | Dark | Up | 30.0 | 256.5 | Up | 03:39:14 - 04:09:14 | 4389 |
| Lake Havasu City | 03:54:23 | -22.5 | Dark | Up | 26.5 | 259.1 | Low | 03:39:23 - 04:09:23 | 4371 |
| Idyllwild | 03:54:16 | -21.0 | Dark | Up | 28.6 | 257.9 | Low | 03:39:16 - 04:09:16 | 4321 |
| George/Scottsdale | 03:54:28 | -24.7 | Dark | Up | 24.6 | 261.0 | Low | 03:39:28 - 04:09:28 | 4256 |
| Calipatria | 03:54:19 | -22.2 | Dark | Up | 27.7 | 259.0 | Low | 03:39:19 - 04:09:19 | 4237 |
| Yuma | 03:54:23 | -23.0 | Dark | Up | 27.1 | 259.8 | Low | 03:39:23 - 04:09:23 | 4178 |
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 535020, (2028/04/08 03:57UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 9.76 91 Bellatrix 05:25:07.8 +06:20:58 1.6 2.27 98 PPM 148872 05:23:31.0 +05:19:23 6.2 2.19 99 PPM 148676 05:15:26.6 +07:03:20 8.5 0.59 101 PPM 148665 05:15:08.2 +06:26:28 10.0 0.22 101 535020 05:16:01.1 +06:28:49 14.4 101 Positions are for J2000
Event circumstances last updated at 2023/12/18 04:43:21 UT
Marc W. Buie, Southwest Research Institute