Event between (15789) 93SC and star GA1100:00312757 with event index number of 1130854
Geocentric closest approach at 2021/11/08 12:52:52 UTC
J2000 position of star is 02:51:32.7 +20:48:02
Equinox of date position of star is 02:52:47.2 +20:53:21
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 130 degrees from the moon.
Moon is 19% illuminated.
TNO apparent brightness V=22.8
[RECON map]
TNO is 38.8 AU from the Sun
and 37.8 AU from the Earth.
The TNO is moving 25.3
km/sec on the sky relative to the star, or,
3.3 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
2501 km.
The sky-plane scale is
27428.2 km/arcsec.
The TNO has an absolute magnitude Hv=7.0
Diameter=239.9 km assuming a 5% albedo -- 9.5 sec chord
Diameter=97.9 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is 3:2E
Star training set for 15789, (2021/11/08 12:53UT) Object RA Dec mag sep mel Aldebaran 04:37:10.6 +16:33:05 0.8 25.06 151 Hamal 02:08:24.6 +23:33:53 2.0 10.61 121 48Eps Ari 03:00:27.9 +21:25:35 5.6 1.87 131 PPM 092055 02:55:32.3 +20:39:13 7.9 0.68 130 PPM 091997 02:50:04.5 +21:07:12 9.8 0.67 129 PPM 092020 02:51:54.3 +20:54:26 10.5 0.21 129 15789 02:52:47.5 +20:53:22 16.6 130 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 29.7 km
RECON observability=0.8 and success probability=17.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Clarence Fulton | 12:49:33 | -20.9 | Dark | Down | 23.3 | 274.9 | Low | 12:34:33 - 13:04:33 | 1423 |
| Kelowna | 12:49:32 | -21.0 | Dark | Down | 23.4 | 275.0 | Low | 12:34:32 - 13:04:32 | 1384 |
| Peachland | 12:49:32 | -21.2 | Dark | Down | 23.6 | 274.8 | Low | 12:34:32 - 13:04:32 | 1367 |
| Summerland | 12:49:31 | -21.2 | Dark | Down | 23.5 | 275.0 | Low | 12:34:31 - 13:04:31 | 1355 |
| Penticton | 12:49:31 | -21.1 | Dark | Down | 23.4 | 275.1 | Low | 12:34:31 - 13:04:31 | 1351 |
| Oliver | 12:49:30 | -21.1 | Dark | Down | 23.4 | 275.2 | Low | 12:34:30 - 13:04:30 | 1318 |
| Anarchist Mountain Observatory | 12:49:30 | -21.0 | Dark | Down | 23.3 | 275.4 | Low | 12:34:30 - 13:04:30 | 1305 |
| Tonasket | 12:49:29 | -21.0 | Dark | Down | 23.3 | 275.5 | Low | 12:34:29 - 13:04:29 | 1275 |
| Okanogan | 12:49:29 | -21.1 | Dark | Down | 23.4 | 275.5 | Low | 12:34:29 - 13:04:29 | 1239 |
| Brewster | 12:49:28 | -21.2 | Dark | Down | 23.5 | 275.5 | Low | 12:34:28 - 13:04:28 | 1209 |
| Manson/Chelan | 12:49:28 | -21.5 | Dark | Down | 23.7 | 275.3 | Low | 12:34:28 - 13:04:28 | 1182 |
| Victoria | 12:49:33 | -23.6 | Dark | Down | 25.9 | 272.7 | Low | 12:34:33 - 13:04:33 | 1181 |
| Wenatchee | 12:49:27 | -21.6 | Dark | Down | 23.8 | 275.4 | Low | 12:34:27 - 13:04:27 | 1133 |
| Ellensburg | 12:49:27 | -21.7 | Dark | Down | 23.9 | 275.4 | Low | 12:34:27 - 13:04:27 | 1088 |
| Yakima | 12:49:25 | -21.7 | Dark | Down | 23.8 | 275.6 | Low | 12:34:25 - 13:04:25 | 1049 |
| Pasco | 12:49:24 | -20.7 | Dark | Down | 22.8 | 276.7 | Low | 12:34:24 - 13:04:24 | 1046 |
| Toppenish/White Swan | 12:49:25 | -21.6 | Dark | Down | 23.7 | 275.8 | Low | 12:34:25 - 13:04:25 | 1031 |
| PNWRO | 12:49:23 | -20.5 | Dark | Down | 22.6 | 277.0 | Low | 12:34:23 - 13:04:23 | 1027 |
| Goldendale | 12:49:24 | -21.9 | Dark | Down | 23.9 | 275.8 | Low | 12:34:24 - 13:04:24 | 968 |
| The Dalles | 12:49:24 | -22.1 | Dark | Down | 24.2 | 275.6 | Low | 12:34:24 - 13:04:24 | 939 |
| Maupin | 12:49:23 | -22.0 | Dark | Down | 24.1 | 275.9 | Low | 12:34:23 - 13:04:23 | 900 |
| Dunrhomin | 12:49:03 | -9.8 | NT | Down | 11.7 | 287.5 | Really Low | 12:34:03 - 13:04:03 | 825 |
| Redmond | 12:49:22 | -22.1 | Dark | Down | 24.0 | 276.2 | Low | 12:34:22 - 13:04:22 | 809 |
| Sisters | 12:49:22 | -22.4 | Dark | Down | 24.3 | 275.9 | Low | 12:34:22 - 13:04:22 | 803 |
| Bend | 12:49:21 | -22.2 | Dark | Down | 24.1 | 276.2 | Low | 12:34:21 - 13:04:21 | 785 |
| Oregon Observatory | 12:49:21 | -22.2 | Dark | Down | 24.2 | 276.2 | Low | 12:34:21 - 13:04:21 | 765 |
| La Pine/Gilchrist | 12:49:21 | -22.3 | Dark | Down | 24.2 | 276.2 | Low | 12:34:21 - 13:04:21 | 743 |
| North Lake | 12:49:19 | -21.8 | Dark | Down | 23.7 | 276.8 | Low | 12:34:19 - 13:04:19 | 712 |
| Paisley | 12:49:18 | -21.5 | Dark | Down | 23.4 | 277.3 | Low | 12:34:18 - 13:04:18 | 665 |
| Chiloquin | 12:49:19 | -22.5 | Dark | Down | 24.4 | 276.5 | Low | 12:34:19 - 13:04:19 | 624 |
| Lakeview | 12:49:17 | -21.4 | Dark | Down | 23.2 | 277.6 | Low | 12:34:17 - 13:04:17 | 619 |
| Klamath Falls | 12:49:18 | -22.4 | Dark | Down | 24.3 | 276.7 | Low | 12:34:18 - 13:04:18 | 591 |
| Cedarville | 12:49:15 | -21.2 | Dark | Down | 23.0 | 278.0 | Low | 12:34:15 - 13:04:15 | 557 |
| Fall River/Burney | 12:49:16 | -22.1 | Dark | Down | 23.8 | 277.5 | Low | 12:34:16 - 13:04:16 | 480 |
| Susanville | 12:49:14 | -21.5 | Dark | Down | 23.2 | 278.2 | Low | 12:34:14 - 13:04:14 | 433 |
| Gimple | 12:49:14 | -21.6 | Dark | Down | 23.3 | 278.2 | Low | 12:34:14 - 13:04:14 | 400 |
| Greenville | 12:49:14 | -21.7 | Dark | Down | 23.4 | 278.1 | Low | 12:34:14 - 13:04:14 | 398 |
| Quincy | 12:49:14 | -21.7 | Dark | Down | 23.4 | 278.2 | Low | 12:34:14 - 13:04:14 | 378 |
| Portola | 12:49:13 | -21.3 | Dark | Down | 23.0 | 278.6 | Low | 12:34:13 - 13:04:13 | 376 |
| Reno | 12:49:12 | -20.8 | Dark | Down | 22.4 | 279.0 | Low | 12:34:12 - 13:04:12 | 364 |
| Carson City | 12:49:11 | -20.7 | Dark | Down | 22.4 | 279.2 | Low | 12:34:11 - 13:04:11 | 328 |
| Yerington | 12:49:10 | -20.2 | Dark | Down | 21.9 | 279.6 | Low | 12:34:10 - 13:04:10 | 323 |
| Gardnerville | 12:49:11 | -20.7 | Dark | Down | 22.3 | 279.3 | Low | 12:34:11 - 13:04:11 | 304 |
| Hawthorne | 12:49:09 | -19.8 | Dark | Down | 21.4 | 280.1 | Low | 12:34:09 - 13:04:09 | 288 |
| Tonopah | 12:49:07 | -18.6 | Dark | Down | 20.2 | 281.1 | Low | 12:34:07 - 13:04:07 | 276 |
| Lee Vining | 12:49:08 | -20.1 | Dark | Down | 21.7 | 280.1 | Low | 12:34:08 - 13:04:08 | 219 |
| Bishop | 12:49:07 | -19.5 | Dark | Down | 21.0 | 280.7 | Low | 12:34:07 - 13:04:07 | 175 |
| Beatty | 12:49:05 | -18.1 | Dark | Down | 19.6 | 281.8 | Really Low | 12:34:05 - 13:04:05 | 169 |
| Indian Springs | 12:49:03 | -17.2 | AT | Down | 18.7 | 282.4 | Really Low | 12:34:03 - 13:04:03 | 164 |
| Henderson | 12:49:02 | -16.6 | AT | Down | 18.1 | 283.0 | Really Low | 12:34:02 - 13:04:02 | 128 |
| Patrick | 12:49:00 | -15.6 | AT | Down | 17.0 | 283.8 | Really Low | 12:34:00 - 13:04:00 | 95 |
| Kingman/Dolan Springs | 12:49:00 | -15.7 | AT | Down | 17.1 | 283.7 | Really Low | 12:34:00 - 13:04:00 | 67 |
| Laughlin/Bullhead City | 12:49:00 | -16.1 | AT | Down | 17.5 | 283.5 | Really Low | 12:34:00 - 13:04:00 | 50 |
| Mohave Valley | 12:49:00 | -16.1 | AT | Down | 17.5 | 283.6 | Really Low | 12:34:00 - 13:04:00 | 22 |
| Lake Havasu City | 12:48:59 | -15.8 | AT | Down | 17.2 | 283.8 | Really Low | 12:33:59 - 13:03:59 | -12 |
| George/Scottsdale | 12:48:56 | -13.7 | AT | Down | 15.0 | 285.2 | Really Low | 12:33:56 - 13:03:56 | -21 |
| Parker | 12:48:59 | -15.8 | AT | Down | 17.1 | 283.9 | Really Low | 12:33:59 - 13:03:59 | -47 |
| CPSLO | 12:49:06 | -21.1 | Dark | Down | 22.4 | 280.3 | Low | 12:34:06 - 13:04:06 | -93 |
| Blythe | 12:48:58 | -15.9 | AT | Down | 17.2 | 283.9 | Really Low | 12:33:58 - 13:03:58 | -109 |
| Idyllwild | 12:49:00 | -17.7 | AT | Down | 18.9 | 282.9 | Really Low | 12:34:00 - 13:04:00 | -155 |
| Wildwood | 12:49:02 | -19.3 | Dark | Down | 20.5 | 281.8 | Low | 12:34:02 - 13:04:02 | -167 |
| Calipatria | 12:48:58 | -16.6 | AT | Down | 17.8 | 283.6 | Really Low | 12:33:58 - 13:03:58 | -186 |
| Yuma | 12:48:57 | -15.8 | AT | Down | 17.0 | 284.2 | Really Low | 12:33:57 - 13:03:57 | -206 |
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 15789, (2021/11/08 12:53UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 25.06 151 Hamal 02:07:10.7 +23:27:42 2.0 10.61 121 48Eps Ari 02:59:12.6 +21:20:25 5.6 1.87 131 PPM 092055 02:54:17.5 +20:33:57 7.9 0.68 130 PPM 091997 02:48:49.7 +21:01:48 9.8 0.67 129 PPM 092020 02:50:39.5 +20:49:05 10.5 0.21 129 15789 02:51:32.7 +20:48:02 16.6 130 Positions are for J2000
Event circumstances last updated at 2021/10/07 00:32:57 UT
Marc W. Buie, Southwest Research Institute