Event between (523642) 10SS43 and star GA1340:00569118 with event index number of 2382987
Geocentric closest approach at 2027/11/08 12:58:11 UTC
J2000 position of star is 01:38:43.4 +44:04:16
Equinox of date position of star is 01:40:06.3 +44:11:13
Stellar brightness G=11.8,
use SENSEUP=8 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 63 degrees from the moon.
Moon is 70% illuminated.
TNO apparent brightness V=21.5
[RECON map]
TNO is 37.7 AU from the Sun
and 36.8 AU from the Earth.
The TNO is moving 24.9
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 115 seconds.
The 1-sigma cross-track error in the shadow position is
2778 km.
The sky-plane scale is
26696.6 km/arcsec.
The TNO has an absolute magnitude Hv=5.7
Diameter=424.6 km assuming a 5% albedo -- 17.3 sec chord
Diameter=173.4 km assuming a 30% albedo -- 7.1 sec chord
Dynamical classification is SCATEXTD
Star training set for 523642, (2027/11/08 12:59UT) Object RA Dec mag sep mel Aldebaran 04:37:31.3 +16:33:48 0.8 46.32 90 57Gam1And 02:05:37.3 +42:27:43 2.3 4.91 66 52Chi And 01:41:02.1 +44:31:36 5.9 0.33 64 PPM 044261 01:40:19.5 +44:17:06 8.0 0.07 63 523642 01:40:24.3 +44:12:43 11.8 64 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 19.3 km
RECON observability=0.8 and success probability=4.3%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 12:54:37 | -11.9 | NT | Down | 23.2 | 313.0 | Low | 12:44:33 - 13:04:41 | 6252 |
| Dunrhomin | 12:54:11 | -8.8 | NT | Down | 14.5 | 316.2 | Really Low | 12:44:07 - 13:04:15 | 5531 |
| CU-SBO | 12:54:11 | -8.8 | NT | Down | 14.4 | 316.2 | Really Low | 12:44:07 - 13:04:15 | 5507 |
| Kamloops | 12:54:37 | -20.7 | Dark | Down | 29.3 | 305.0 | Low | 12:44:33 - 13:04:41 | 5443 |
| Kelowna | 12:54:35 | -20.1 | Dark | Down | 28.4 | 305.8 | Low | 12:44:31 - 13:04:39 | 5423 |
| Peachland | 12:54:35 | -20.3 | Dark | Down | 28.5 | 305.7 | Low | 12:44:31 - 13:04:39 | 5400 |
| Penticton | 12:54:34 | -20.2 | Dark | Down | 28.2 | 305.9 | Low | 12:44:30 - 13:04:38 | 5393 |
| Summerland | 12:54:34 | -20.3 | Dark | Down | 28.3 | 305.8 | Low | 12:44:30 - 13:04:38 | 5393 |
| Oliver | 12:54:33 | -20.2 | Dark | Down | 28.0 | 306.1 | Low | 12:44:29 - 13:04:37 | 5366 |
| Anarchist Mountain Observatory | 12:54:33 | -20.0 | Dark | Down | 27.8 | 306.3 | Low | 12:44:29 - 13:04:37 | 5363 |
| Okanogan | 12:54:31 | -20.2 | Dark | Down | 27.6 | 306.4 | Low | 12:44:27 - 13:04:35 | 5302 |
| Brewster | 12:54:31 | -20.3 | Dark | Down | 27.5 | 306.4 | Low | 12:44:27 - 13:04:35 | 5270 |
| Manson/Chelan | 12:54:31 | -20.5 | Dark | Down | 27.6 | 306.3 | Low | 12:44:27 - 13:04:35 | 5236 |
| Wenatchee | 12:54:30 | -20.6 | Dark | Down | 27.4 | 306.4 | Low | 12:44:26 - 13:04:34 | 5190 |
| PNWRO | 12:54:26 | -19.6 | Dark | Down | 25.8 | 307.7 | Low | 12:44:22 - 13:04:30 | 5153 |
| Ellensburg | 12:54:29 | -20.8 | Dark | Down | 27.3 | 306.5 | Low | 12:44:25 - 13:04:33 | 5146 |
| Victoria | 12:54:35 | -22.7 | Dark | Down | 29.7 | 304.3 | Low | 12:44:31 - 13:04:39 | 5127 |
| Yakima | 12:54:28 | -20.7 | Dark | Down | 27.1 | 306.6 | Low | 12:44:24 - 13:04:32 | 5113 |
| Toppenish/White Swan | 12:54:28 | -20.6 | Dark | Down | 26.8 | 306.8 | Low | 12:44:24 - 13:04:32 | 5104 |
| The Dalles | 12:54:27 | -21.1 | Dark | Down | 26.8 | 306.7 | Low | 12:44:23 - 13:04:31 | 5001 |
| Maupin | 12:54:26 | -21.1 | Dark | Down | 26.5 | 306.9 | Low | 12:44:22 - 13:04:30 | 4973 |
| Sisters | 12:54:24 | -21.4 | Dark | Down | 26.3 | 307.0 | Low | 12:44:20 - 13:04:28 | 4876 |
| Bend | 12:54:24 | -21.2 | Dark | Down | 26.0 | 307.2 | Low | 12:44:20 - 13:04:28 | 4871 |
| Oregon Observatory | 12:54:24 | -21.3 | Dark | Down | 25.9 | 307.3 | Low | 12:44:20 - 13:04:28 | 4850 |
| Cedarville | 12:54:18 | -20.2 | Dark | Down | 23.8 | 308.7 | Low | 12:44:14 - 13:04:22 | 4728 |
| Chiloquin | 12:54:22 | -21.5 | Dark | Down | 25.4 | 307.6 | Low | 12:44:18 - 13:04:26 | 4720 |
| Klamath Falls | 12:54:21 | -21.4 | Dark | Down | 25.1 | 307.7 | Low | 12:44:17 - 13:04:25 | 4696 |
| George/Scottsdale | 12:54:03 | -12.6 | AT | Down | 13.7 | 314.3 | Really Low | 12:43:59 - 13:04:07 | 4624 |
| Patrick | 12:54:05 | -14.5 | AT | Down | 16.1 | 313.1 | Really Low | 12:44:01 - 13:04:09 | 4623 |
| Fall River/Burney | 12:54:19 | -21.1 | Dark | Down | 24.2 | 308.3 | Low | 12:44:15 - 13:04:23 | 4621 |
| Reno | 12:54:15 | -19.7 | Dark | Down | 22.3 | 309.5 | Low | 12:44:11 - 13:04:19 | 4588 |
| Yerington | 12:54:13 | -19.2 | Dark | Down | 21.6 | 310.0 | Low | 12:44:09 - 13:04:17 | 4581 |
| Gimple | 12:54:17 | -20.6 | Dark | Down | 23.3 | 308.9 | Low | 12:44:13 - 13:04:21 | 4576 |
| Hawthorne | 12:54:12 | -18.7 | Dark | Down | 21.0 | 310.3 | Low | 12:44:08 - 13:04:16 | 4575 |
| Portola | 12:54:16 | -20.3 | Dark | Down | 22.9 | 309.1 | Low | 12:44:12 - 13:04:20 | 4572 |
| Greenville | 12:54:16 | -20.7 | Dark | Down | 23.4 | 308.8 | Low | 12:44:12 - 13:04:20 | 4571 |
| Carson City | 12:54:15 | -19.7 | Dark | Down | 22.1 | 309.6 | Low | 12:44:11 - 13:04:19 | 4560 |
| Laughlin/Bullhead City | 12:54:05 | -15.1 | AT | Down | 16.3 | 312.9 | Really Low | 12:44:01 - 13:04:09 | 4559 |
| Beatty | 12:54:09 | -17.1 | AT | Down | 18.8 | 311.6 | Really Low | 12:44:05 - 13:04:13 | 4558 |
| Quincy | 12:54:16 | -20.6 | Dark | Down | 23.2 | 308.9 | Low | 12:44:12 - 13:04:20 | 4555 |
| Gardnerville | 12:54:14 | -19.6 | Dark | Down | 21.9 | 309.7 | Low | 12:44:10 - 13:04:18 | 4543 |
| Lake Havasu City | 12:54:04 | -14.7 | AT | Down | 15.7 | 313.1 | Really Low | 12:44:00 - 13:04:08 | 4523 |
| Lee Vining | 12:54:12 | -19.0 | Dark | Down | 20.9 | 310.3 | Low | 12:44:08 - 13:04:16 | 4500 |
| Bishop | 12:54:11 | -18.4 | Dark | Down | 20.1 | 310.8 | Low | 12:44:07 - 13:04:15 | 4495 |
| Yuma | 12:54:02 | -14.7 | AT | Down | 14.7 | 313.3 | Really Low | 12:43:58 - 13:04:06 | 4362 |
| Calipatria | 12:54:03 | -15.5 | AT | Down | 15.5 | 312.9 | Really Low | 12:43:59 - 13:04:07 | 4337 |
| Idyllwild | 12:54:05 | -16.6 | AT | Down | 16.6 | 312.3 | Really Low | 12:44:01 - 13:04:09 | 4309 |
| Wildwood | 12:54:07 | -18.2 | Dark | Down | 18.0 | 311.5 | Really Low | 12:44:03 - 13:04:11 | 4218 |
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 523642, (2027/11/08 12:59UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 46.32 90 57Gam1And 02:03:54.1 +42:19:46 2.3 4.91 66 52Chi And 01:39:21.0 +44:23:10 5.9 0.33 64 PPM 044261 01:38:38.6 +44:08:40 8.0 0.07 63 523642 01:38:43.4 +44:04:16 11.8 63 Positions are for J2000
Event circumstances last updated at 2022/11/24 02:58:59 UT
Marc W. Buie, Southwest Research Institute