Event between (523642) 10SS43 and star GA1320:00541236 with event index number of 1718194
Geocentric closest approach at 2027/07/20 09:47:52 UTC
J2000 position of star is 01:47:03.6 +43:32:19
Equinox of date position of star is 01:48:19.7 +43:38:31
Stellar brightness G=15.7,
use SENSEUP=128
Star is 86 degrees from the moon.
Moon is 97% illuminated.
TNO apparent brightness V=25.9
[RECON map]
TNO is 37.7 AU from the Sun
and 37.9 AU from the Earth.
The TNO is moving 19.9
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 181 seconds.
The 1-sigma cross-track error in the shadow position is
4043 km.
The sky-plane scale is
27494.7 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=398.1 km assuming a 5% albedo -- 3.0 sec chord
Diameter=162.5 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 523642, (2027/07/20 09:48UT) Object RA Dec mag sep mel Aldebaran 04:37:30.3 +16:33:46 0.8 44.73 113 57Gam1And 02:05:36.2 +42:27:38 2.3 3.31 88 PPM 044298 01:42:19.4 +43:26:10 5.8 1.19 84 PPM 044402 01:47:59.8 +43:50:33 7.2 0.21 85 PPM 044407 01:48:12.7 +43:43:11 9.5 0.10 85 523642 01:48:44.3 +43:40:31 15.7 86 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 7.3 km
RECON observability=1.0 and success probability=6.7%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| CPSLO | 09:47:45 | -29.3 | Dark | Up | 42.1 | 60.2 | Up | 09:32:45 - 10:02:45 | -2278 |
| Wildwood | 09:47:35 | -29.6 | Dark | Up | 43.0 | 59.6 | Up | 09:32:35 - 10:02:35 | -2348 |
| Idyllwild | 09:47:29 | -29.2 | Dark | Up | 44.1 | 59.6 | Up | 09:32:29 - 10:02:29 | -2444 |
| Quincy | 09:48:08 | -25.2 | Dark | Up | 44.2 | 64.0 | Up | 09:33:08 - 10:03:08 | -2447 |
| Greenville | 09:48:09 | -25.1 | Dark | Up | 44.3 | 64.1 | Up | 09:33:09 - 10:03:09 | -2456 |
| Lee Vining | 09:47:54 | -26.4 | Dark | Up | 44.5 | 62.7 | Up | 09:32:54 - 10:02:54 | -2459 |
| Gimple | 09:48:09 | -25.0 | Dark | Up | 44.3 | 64.2 | Up | 09:33:09 - 10:03:09 | -2460 |
| Portola | 09:48:06 | -25.2 | Dark | Up | 44.4 | 64.0 | Up | 09:33:06 - 10:03:06 | -2465 |
| Gardnerville | 09:48:00 | -25.7 | Dark | Up | 44.5 | 63.4 | Up | 09:33:00 - 10:03:00 | -2466 |
| Carson City | 09:48:02 | -25.5 | Dark | Up | 44.6 | 63.6 | Up | 09:33:02 - 10:03:02 | -2473 |
| Fall River/Burney | 09:48:14 | -24.4 | Dark | Up | 44.4 | 64.8 | Up | 09:33:14 - 10:03:14 | -2474 |
| Bishop | 09:47:50 | -26.7 | Dark | Up | 44.7 | 62.4 | Up | 09:32:50 - 10:02:50 | -2475 |
| Susanville | 09:48:09 | -24.7 | Dark | Up | 44.6 | 64.5 | Up | 09:33:09 - 10:03:09 | -2482 |
| Reno | 09:48:03 | -25.2 | Dark | Up | 44.8 | 63.9 | Up | 09:33:03 - 10:03:03 | -2487 |
| Calipatria | 09:47:23 | -29.2 | Dark | Up | 44.6 | 59.2 | Up | 09:32:23 - 10:02:23 | -2497 |
| Yerington | 09:48:00 | -25.5 | Dark | Up | 45.0 | 63.6 | Up | 09:33:00 - 10:03:00 | -2498 |
| Hawthorne | 09:47:56 | -25.7 | Dark | Up | 45.1 | 63.4 | Up | 09:32:56 - 10:02:56 | -2508 |
| Klamath Falls | 09:48:20 | -23.4 | Dark | Up | 44.6 | 65.7 | Up | 09:33:20 - 10:03:20 | -2509 |
| Yuma | 09:47:19 | -29.2 | Dark | Up | 45.1 | 59.0 | Up | 09:32:19 - 10:02:19 | -2539 |
| Beatty | 09:47:44 | -26.4 | Dark | Up | 45.7 | 62.3 | Up | 09:32:44 - 10:02:44 | -2549 |
| Cedarville | 09:48:14 | -23.5 | Dark | Up | 45.4 | 65.6 | Up | 09:33:14 - 10:03:14 | -2555 |
| Tonopah | 09:47:51 | -25.6 | Dark | Up | 45.9 | 63.3 | Up | 09:32:51 - 10:02:51 | -2566 |
| Blythe | 09:47:23 | -28.4 | Dark | Up | 45.6 | 59.8 | Up | 09:32:23 - 10:02:23 | -2569 |
| Lakeview | 09:48:17 | -23.0 | Dark | Up | 45.6 | 66.2 | Up | 09:33:17 - 10:03:17 | -2576 |
| Paisley | 09:48:20 | -22.6 | Dark | Up | 45.6 | 66.6 | Up | 09:33:20 - 10:03:20 | -2590 |
| La Pine/Gilchrist | 09:48:27 | -22.0 | Dark | Up | 45.4 | 67.2 | Up | 09:33:27 - 10:03:27 | -2591 |
| North Lake | 09:48:23 | -22.2 | Dark | Up | 45.6 | 67.0 | Up | 09:33:23 - 10:03:23 | -2599 |
| Indian Springs | 09:47:40 | -26.3 | Dark | Up | 46.3 | 62.3 | Up | 09:32:40 - 10:02:40 | -2599 |
| Parker | 09:47:25 | -27.8 | Dark | Up | 46.1 | 60.3 | Up | 09:32:25 - 10:02:25 | -2603 |
| Oregon Observatory | 09:48:28 | -21.8 | Dark | Up | 45.5 | 67.4 | Up | 09:33:28 - 10:03:28 | -2604 |
| Searchlight/Boulder City | 09:47:33 | -26.9 | Dark | Up | 46.3 | 61.4 | Up | 09:32:33 - 10:02:33 | -2606 |
| Mohave Valley | 09:47:30 | -27.3 | Dark | Up | 46.2 | 60.9 | Up | 09:32:30 - 10:02:30 | -2610 |
| Lake Havasu City | 09:47:27 | -27.5 | Dark | Up | 46.2 | 60.6 | Up | 09:32:27 - 10:02:27 | -2612 |
| Laughlin/Bullhead City | 09:47:31 | -27.0 | Dark | Up | 46.4 | 61.2 | Up | 09:32:31 - 10:02:31 | -2618 |
| Sisters | 09:48:30 | -21.4 | Dark | Up | 45.6 | 67.7 | Up | 09:33:30 - 10:03:30 | -2619 |
| Bend | 09:48:28 | -21.6 | Dark | Up | 45.7 | 67.6 | Up | 09:33:28 - 10:03:28 | -2619 |
| Henderson | 09:47:36 | -26.5 | Dark | Up | 46.5 | 61.9 | Up | 09:32:36 - 10:02:36 | -2622 |
| Redmond | 09:48:29 | -21.3 | Dark | Up | 45.9 | 67.9 | Up | 09:33:29 - 10:03:29 | -2636 |
| Kingman/Dolan Springs | 09:47:30 | -26.8 | Dark | Up | 46.7 | 61.3 | Up | 09:32:30 - 10:02:30 | -2650 |
| Patrick | 09:47:31 | -26.5 | Dark | Up | 47.0 | 61.5 | Up | 09:32:31 - 10:02:31 | -2668 |
| Maupin | 09:48:34 | -20.5 | Dark | Up | 46.3 | 68.8 | Up | 09:33:34 - 10:03:34 | -2685 |
| The Dalles | 09:48:36 | -20.1 | Dark | Up | 46.4 | 69.1 | Up | 09:33:36 - 10:03:36 | -2702 |
| DCO | 09:47:28 | -26.4 | Dark | Up | 47.3 | 61.3 | Up | 09:32:28 - 10:02:28 | -2702 |
| Goldendale | 09:48:36 | -19.8 | Dark | Up | 46.7 | 69.5 | Up | 09:33:36 - 10:03:36 | -2730 |
| George/Scottsdale | 09:47:18 | -27.0 | Dark | Up | 47.6 | 60.2 | Up | 09:32:18 - 10:02:18 | -2744 |
| Victoria | 09:48:53 | -18.0 | Dark | Up | 46.0 | 71.0 | Up | 09:33:53 - 10:03:53 | -2763 |
| Toppenish/White Swan | 09:48:37 | -19.2 | Dark | Up | 47.1 | 70.3 | Up | 09:33:37 - 10:03:37 | -2777 |
| Yakima | 09:48:39 | -19.1 | Dark | Up | 47.1 | 70.4 | Up | 09:33:39 - 10:03:39 | -2781 |
| Ellensburg | 09:48:41 | -18.7 | Dark | Up | 47.3 | 70.9 | Up | 09:33:41 - 10:03:41 | -2802 |
| PNWRO | 09:48:34 | -19.1 | Dark | Up | 48.0 | 70.6 | Up | 09:33:34 - 10:03:34 | -2828 |
| Pasco | 09:48:34 | -18.9 | Dark | Up | 47.9 | 70.8 | Up | 09:33:34 - 10:03:34 | -2830 |
| Wenatchee | 09:48:42 | -18.2 | Dark | Up | 47.5 | 71.4 | Up | 09:33:42 - 10:03:42 | -2834 |
| Entiat | 09:48:43 | -18.0 | AT | Up | 47.7 | 71.7 | Up | 09:33:43 - 10:03:43 | -2852 |
| Manson/Chelan | 09:48:44 | -17.8 | AT | Up | 47.8 | 72.0 | Up | 09:33:44 - 10:03:44 | -2866 |
| Brewster | 09:48:44 | -17.5 | AT | Up | 48.1 | 72.4 | Up | 09:33:44 - 10:03:44 | -2894 |
| Okanogan | 09:48:45 | -17.2 | AT | Up | 48.3 | 72.8 | Up | 09:33:45 - 10:03:45 | -2917 |
| Tonasket | 09:48:47 | -16.8 | AT | Up | 48.5 | 73.2 | Up | 09:33:47 - 10:03:47 | -2942 |
| Anarchist Mountain Observatory | 09:48:48 | -16.5 | AT | Up | 48.6 | 73.6 | Up | 09:33:48 - 10:03:48 | -2961 |
| Oliver | 09:48:49 | -16.4 | AT | Up | 48.6 | 73.7 | Up | 09:33:49 - 10:03:49 | -2962 |
| Summerland | 09:48:51 | -16.1 | AT | Up | 48.6 | 74.1 | Up | 09:33:51 - 10:03:51 | -2980 |
| Penticton | 09:48:51 | -16.1 | AT | Up | 48.7 | 74.1 | Up | 09:33:51 - 10:03:51 | -2981 |
| Peachland | 09:48:52 | -15.9 | AT | Up | 48.6 | 74.2 | Up | 09:33:52 - 10:03:52 | -2984 |
| Kelowna | 09:48:53 | -15.8 | AT | Up | 48.8 | 74.5 | Up | 09:33:53 - 10:03:53 | -3003 |
| Clarence Fulton | 09:48:54 | -15.4 | AT | Up | 49.0 | 75.0 | Up | 09:33:54 - 10:03:54 | -3031 |
| SwRI | 09:47:39 | -18.8 | Dark | Up | 55.1 | 68.4 | Up | 09:32:39 - 10:02:39 | -3359 |
| Niwot | 09:47:40 | -18.6 | Dark | Up | 55.2 | 68.5 | Up | 09:32:40 - 10:02:40 | -3368 |
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, (2027/07/20 09:48UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 44.73 113 57Gam1And 02:03:54.0 +42:19:46 2.3 3.31 88 PPM 044298 01:40:39.8 +43:17:51 5.8 1.19 84 PPM 044402 01:46:19.2 +43:42:20 7.2 0.21 85 PPM 044407 01:46:32.2 +43:34:58 9.5 0.10 85 523642 01:47:03.6 +43:32:19 15.7 86 Positions are for J2000
Event circumstances last updated at 2020/10/30 23:41:19 UT
Marc W. Buie, Southwest Research Institute