Event between (523617) 07PS45 and star GA0800:00139973 with event index number of 2626778
Geocentric closest approach at 2027/09/09 12:12:02 UTC
J2000 position of star is 01:45:11.4 -09:11:27
Equinox of date position of star is 01:46:22.7 -09:04:18
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 103 degrees from the moon.
Moon is 67% illuminated.
Apparent brightness V=21.8
[RECON map]
Object is 41.8 AU from the Sun
and 41.0 AU from the Earth.
Apparent velocity is 20.6
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 191 seconds.
The 1-sigma cross-track error in the shadow position is
2978 km.
The sky-plane scale is
29709.2 km/arcsec.
The object has an absolute magnitude Hv=5.5
Diameter=461.3 km assuming a 5% albedo -- 23.3 sec chord
Diameter=188.3 km assuming a 30% albedo -- 9.5 sec chord
Dynamical classification is 2:1E
Star training set for 523617, (2027/09/09 12:09UT) Object RA Dec mag sep mel Fomalhaut 22:59:10.3 -29:28:29 1.2 44.12 59 68Omi Cet 02:20:44.9 -02:51:11 2.0 10.52 114 53Chi Cet 01:50:56.8 -10:33:01 4.7 1.85 103 PPM 183842 01:48:28.6 -09:27:43 8.5 0.62 103 PPM 183806 01:46:43.3 -09:14:23 9.6 0.19 103 523617 01:46:33.9 -09:03:10 16.5 103 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
4.7 sigma about the mid-time.
The median site spacing is 38.1 km
RECON observability=0.5 and success probability=17.4%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 12:08:17 | -12.8 | AT | Down | 26.7 | 206.4 | Low | 11:53:17 - 12:23:17 | 24 |
| Victoria | 12:08:26 | -15.5 | AT | Down | 29.5 | 203.6 | Low | 11:53:26 - 12:23:26 | 18 |
| Peachland | 12:08:16 | -12.8 | AT | Down | 27.3 | 207.2 | Low | 11:53:16 - 12:23:16 | -64 |
| Kelowna | 12:08:16 | -12.6 | AT | Down | 27.2 | 207.5 | Low | 11:53:16 - 12:23:16 | -70 |
| Summerland | 12:08:16 | -12.8 | AT | Down | 27.4 | 207.4 | Low | 11:53:16 - 12:23:16 | -78 |
| Penticton | 12:08:16 | -12.8 | AT | Down | 27.5 | 207.5 | Low | 11:53:16 - 12:23:16 | -88 |
| Oliver | 12:08:16 | -13.0 | AT | Down | 27.8 | 207.6 | Low | 11:53:16 - 12:23:16 | -112 |
| Anarchist Mountain Observatory | 12:08:16 | -12.9 | AT | Down | 27.9 | 207.8 | Low | 11:53:16 - 12:23:16 | -132 |
| Okanogan | 12:08:17 | -13.3 | AT | Down | 28.5 | 207.8 | Low | 11:53:17 - 12:23:17 | -167 |
| Manson/Chelan | 12:08:18 | -13.8 | AT | Down | 29.1 | 207.3 | Low | 11:53:18 - 12:23:18 | -174 |
| Brewster | 12:08:17 | -13.5 | AT | Down | 28.8 | 207.6 | Low | 11:53:17 - 12:23:17 | -176 |
| Wenatchee | 12:08:19 | -14.1 | AT | Down | 29.6 | 207.2 | Low | 11:53:19 - 12:23:19 | -199 |
| Ellensburg | 12:08:20 | -14.5 | AT | Down | 30.0 | 207.1 | Up | 11:53:20 - 12:23:20 | -217 |
| Yakima | 12:08:20 | -14.6 | AT | Down | 30.4 | 207.2 | Up | 11:53:20 - 12:23:20 | -245 |
| Toppenish/White Swan | 12:08:20 | -14.6 | AT | Down | 30.5 | 207.4 | Up | 11:53:20 - 12:23:20 | -268 |
| The Dalles | 12:08:22 | -15.4 | AT | Down | 31.5 | 206.8 | Up | 11:53:22 - 12:23:22 | -285 |
| Maupin | 12:08:22 | -15.5 | AT | Down | 31.8 | 207.0 | Up | 11:53:22 - 12:23:22 | -319 |
| Sisters | 12:08:24 | -16.2 | AT | Down | 32.8 | 206.7 | Up | 11:53:24 - 12:23:24 | -357 |
| PNWRO | 12:08:16 | -13.8 | AT | Down | 30.4 | 209.1 | Up | 11:53:16 - 12:23:16 | -365 |
| Bend | 12:08:24 | -16.1 | AT | Down | 32.9 | 207.1 | Up | 11:53:24 - 12:23:24 | -387 |
| Oregon Observatory | 12:08:24 | -16.3 | AT | Down | 33.1 | 207.0 | Up | 11:53:24 - 12:23:24 | -393 |
| Chiloquin | 12:08:27 | -17.1 | AT | Down | 34.4 | 207.0 | Up | 11:53:27 - 12:23:27 | -467 |
| Sleaford | 12:07:47 | -3.9 | CT | Down | 20.6 | 220.5 | Low | 11:52:47 - 12:22:47 | -469 |
| Klamath Falls | 12:08:27 | -17.2 | AT | Down | 34.7 | 207.2 | Up | 11:53:27 - 12:23:27 | -496 |
| Fall River/Burney | 12:08:27 | -17.4 | AT | Down | 35.6 | 208.0 | Up | 11:53:27 - 12:23:27 | -602 |
| Cedarville | 12:08:23 | -16.4 | AT | Down | 34.7 | 209.2 | Up | 11:53:23 - 12:23:23 | -629 |
| Greenville | 12:08:27 | -17.5 | AT | Down | 36.2 | 208.8 | Up | 11:53:27 - 12:23:27 | -693 |
| Gimple | 12:08:27 | -17.4 | AT | Down | 36.2 | 208.9 | Up | 11:53:27 - 12:23:27 | -698 |
| Quincy | 12:08:27 | -17.5 | AT | Down | 36.4 | 208.9 | Up | 11:53:27 - 12:23:27 | -708 |
| Portola | 12:08:26 | -17.3 | AT | Down | 36.3 | 209.4 | Up | 11:53:26 - 12:23:26 | -743 |
| Reno | 12:08:24 | -16.9 | AT | Down | 36.3 | 210.3 | Up | 11:53:24 - 12:23:24 | -797 |
| Carson City | 12:08:24 | -17.0 | AT | Down | 36.6 | 210.4 | Up | 11:53:24 - 12:23:24 | -826 |
| Gardnerville | 12:08:25 | -17.1 | AT | Down | 36.8 | 210.6 | Up | 11:53:25 - 12:23:25 | -847 |
| Yerington | 12:08:23 | -16.6 | AT | Down | 36.5 | 211.2 | Up | 11:53:23 - 12:23:23 | -874 |
| Hawthorne | 12:08:22 | -16.4 | AT | Down | 36.7 | 212.0 | Up | 11:53:22 - 12:23:22 | -939 |
| Lee Vining | 12:08:24 | -17.0 | AT | Down | 37.4 | 211.7 | Up | 11:53:24 - 12:23:24 | -956 |
| Bishop | 12:08:23 | -16.7 | AT | Down | 37.6 | 212.7 | Up | 11:53:23 - 12:23:23 | -1042 |
| Beatty | 12:08:18 | -15.6 | AT | Down | 37.3 | 214.7 | Up | 11:53:18 - 12:23:18 | -1167 |
| Wildwood | 12:08:27 | -17.9 | AT | Down | 40.4 | 214.0 | Up | 11:53:27 - 12:23:27 | -1293 |
| Laughlin/Bullhead City | 12:08:14 | -14.5 | AT | Down | 37.6 | 217.9 | Up | 11:53:14 - 12:23:14 | -1427 |
| Idyllwild | 12:08:22 | -16.6 | AT | Down | 39.8 | 216.3 | Up | 11:53:22 - 12:23:22 | -1428 |
| Patrick | 12:08:12 | -13.9 | AT | Down | 37.1 | 218.5 | Up | 11:53:12 - 12:23:12 | -1445 |
| Dunrhomin | 12:07:46 | -6.1 | NT | Down | 28.9 | 225.0 | Low | 11:52:46 - 12:22:46 | -1476 |
| Nikitin | 12:07:46 | -6.1 | NT | Down | 29.1 | 225.0 | Low | 11:52:46 - 12:22:46 | -1491 |
| CU-SBO | 12:07:47 | -6.2 | NT | Down | 29.2 | 225.0 | Low | 11:52:47 - 12:22:47 | -1493 |
| Lake Havasu City | 12:08:15 | -14.5 | AT | Down | 38.0 | 218.5 | Up | 11:53:15 - 12:23:15 | -1497 |
| Calipatria | 12:08:20 | -15.8 | AT | Down | 39.7 | 217.9 | Up | 11:53:20 - 12:23:20 | -1545 |
| Yuma | 12:08:18 | -15.2 | AT | Down | 39.6 | 219.0 | Up | 11:53:18 - 12:23:18 | -1631 |
| George/Scottsdale | 12:08:09 | -12.8 | AT | Down | 37.3 | 221.4 | Up | 11:53:09 - 12:23:09 | -1697 |
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 523617, (2027/09/09 12:09UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 44.12 59 68Omi Cet 02:19:20.8 -02:58:45 2.0 10.52 114 53Chi Cet 01:49:34.9 -10:41:13 4.7 1.85 103 PPM 183842 01:47:06.3 -09:35:58 8.5 0.62 103 PPM 183806 01:45:20.9 -09:22:40 9.6 0.19 103 523617 01:45:11.4 -09:11:27 16.5 103 Positions are for J2000
Event circumstances last updated at 2023/12/08 04:30:44 UT
Marc W. Buie, Southwest Research Institute