Event between 10TS191 and star GA1020:00373488 with event index number of 1027408
Geocentric closest approach at 2020/12/09 10:38:41 UTC
J2000 position of star is 03:53:19.0 +13:44:13
Equinox of date position of star is 03:54:29.2 +13:47:52
Stellar brightness G=13.6,
use SENSEUP=64
Star is 127 degrees from the moon.
Moon is 34% illuminated.
TNO apparent brightness V=22.7
[RECON map]
TNO is 28.6 AU from the Sun
and 27.7 AU from the Earth.
The TNO is moving 23.0
km/sec on the sky relative to the star, or,
4.1 arcsec/hr.
The 1-sigma error in the time of the event is 74 seconds.
The 1-sigma cross-track error in the shadow position is
1094 km.
The sky-plane scale is
20102.3 km/arcsec.
The TNO has an absolute magnitude Hv=8.1
Diameter=147.2 km assuming a 5% albedo -- 6.4 sec chord
Diameter=60.1 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is 1:1
Star training set for 10TS191, (2020/12/09 10:39UT) Object RA Dec mag sep mel Aldebaran 04:37:07.5 +16:32:59 0.8 10.65 117 Menkar 03:03:22.6 +04:10:14 2.5 15.86 142 PPM 119411 03:52:25.8 +13:06:28 6.2 0.85 128 PPM 119438 03:54:55.6 +13:33:57 8.5 0.26 127 PPM 119428 03:53:57.4 +14:00:29 9.7 0.25 127 10TS191 03:54:29.3 +13:47:52 13.6 127 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 22.7 km
RECON observability=1.0 and success probability=2.3%
| 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 | 10:35:41 | -47.7 | Dark | Up | 29.6 | 255.2 | Low | 10:29:02 - 10:42:19 | 4710 |
| Kelowna | 10:35:40 | -48.0 | Dark | Up | 29.8 | 255.2 | Low | 10:29:01 - 10:42:18 | 4673 |
| Peachland | 10:35:40 | -48.2 | Dark | Up | 30.0 | 255.1 | Up | 10:29:02 - 10:42:19 | 4661 |
| Summerland | 10:35:40 | -48.2 | Dark | Up | 30.0 | 255.2 | Low | 10:29:01 - 10:42:18 | 4648 |
| Penticton | 10:35:39 | -48.2 | Dark | Up | 29.9 | 255.3 | Low | 10:29:00 - 10:42:17 | 4643 |
| Oliver | 10:35:38 | -48.3 | Dark | Up | 30.0 | 255.5 | Up | 10:29:00 - 10:42:17 | 4611 |
| Anarchist Mountain Observatory | 10:35:38 | -48.3 | Dark | Up | 30.0 | 255.8 | Low | 10:28:59 - 10:42:16 | 4597 |
| Tonasket | 10:35:37 | -48.5 | Dark | Up | 30.1 | 255.9 | Up | 10:28:59 - 10:42:16 | 4568 |
| Okanogan | 10:35:36 | -48.7 | Dark | Up | 30.3 | 256.0 | Up | 10:28:58 - 10:42:15 | 4536 |
| Victoria | 10:35:44 | -50.9 | Dark | Up | 32.6 | 252.6 | Up | 10:29:05 - 10:42:22 | 4518 |
| Brewster | 10:35:36 | -48.9 | Dark | Up | 30.5 | 256.0 | Up | 10:28:58 - 10:42:15 | 4509 |
| Manson/Chelan | 10:35:36 | -49.2 | Dark | Up | 30.7 | 255.8 | Up | 10:28:58 - 10:42:15 | 4487 |
| Entiat | 10:35:36 | -49.4 | Dark | Up | 30.8 | 255.8 | Up | 10:28:57 - 10:42:14 | 4466 |
| Wenatchee | 10:35:35 | -49.5 | Dark | Up | 31.0 | 255.9 | Up | 10:28:57 - 10:42:14 | 4441 |
| Ellensburg | 10:35:35 | -49.8 | Dark | Up | 31.2 | 256.0 | Up | 10:28:56 - 10:42:13 | 4400 |
| Yakima | 10:35:34 | -50.0 | Dark | Up | 31.3 | 256.2 | Up | 10:28:55 - 10:42:12 | 4362 |
| Pasco | 10:35:30 | -49.2 | Dark | Up | 30.5 | 257.5 | Up | 10:28:52 - 10:42:09 | 4344 |
| Toppenish/White Swan | 10:35:33 | -50.0 | Dark | Up | 31.3 | 256.4 | Up | 10:28:54 - 10:42:11 | 4343 |
| PNWRO | 10:35:29 | -49.1 | Dark | Up | 30.4 | 257.9 | Up | 10:28:51 - 10:42:08 | 4323 |
| Goldendale | 10:35:32 | -50.5 | Dark | Up | 31.7 | 256.4 | Up | 10:28:54 - 10:42:11 | 4287 |
| The Dalles | 10:35:33 | -50.8 | Dark | Up | 32.0 | 256.3 | Up | 10:28:54 - 10:42:11 | 4262 |
| Maupin | 10:35:32 | -50.9 | Dark | Up | 32.0 | 256.6 | Up | 10:28:53 - 10:42:10 | 4224 |
| Redmond | 10:35:30 | -51.2 | Dark | Up | 32.3 | 257.1 | Up | 10:28:51 - 10:42:08 | 4136 |
| Sisters | 10:35:31 | -51.5 | Dark | Up | 32.6 | 256.7 | Up | 10:28:52 - 10:42:09 | 4135 |
| Bend | 10:35:30 | -51.4 | Dark | Up | 32.4 | 257.1 | Up | 10:28:51 - 10:42:08 | 4115 |
| Oregon Observatory | 10:35:29 | -51.6 | Dark | Up | 32.6 | 257.1 | Up | 10:28:51 - 10:42:08 | 4097 |
| La Pine/Gilchrist | 10:35:29 | -51.7 | Dark | Up | 32.7 | 257.2 | Up | 10:28:50 - 10:42:07 | 4076 |
| North Lake | 10:35:27 | -51.4 | Dark | Up | 32.3 | 257.9 | Up | 10:28:49 - 10:42:06 | 4040 |
| Paisley | 10:35:25 | -51.3 | Dark | Up | 32.2 | 258.5 | Up | 10:28:46 - 10:42:03 | 3990 |
| Lakeview | 10:35:24 | -51.4 | Dark | Up | 32.2 | 259.0 | Up | 10:28:45 - 10:42:02 | 3942 |
| Niwot | 10:34:54 | -40.6 | Dark | Up | 21.1 | 270.5 | Low | 10:28:16 - 10:41:33 | 3934 |
| Klamath Falls | 10:35:26 | -52.4 | Dark | Up | 33.2 | 257.9 | Up | 10:28:48 - 10:42:05 | 3932 |
| SwRI | 10:34:54 | -40.6 | Dark | Up | 21.1 | 270.5 | Low | 10:28:16 - 10:41:33 | 3922 |
| Cedarville | 10:35:22 | -51.4 | Dark | Up | 32.2 | 259.5 | Up | 10:28:43 - 10:42:00 | 3879 |
| Fall River/Burney | 10:35:23 | -52.4 | Dark | Up | 33.2 | 258.9 | Up | 10:28:45 - 10:42:02 | 3819 |
| Susanville | 10:35:20 | -52.1 | Dark | Up | 32.7 | 259.8 | Up | 10:28:42 - 10:41:59 | 3764 |
| Gimple | 10:35:20 | -52.3 | Dark | Up | 32.9 | 259.9 | Up | 10:28:42 - 10:41:59 | 3734 |
| Greenville | 10:35:20 | -52.4 | Dark | Up | 33.0 | 259.8 | Up | 10:28:42 - 10:41:59 | 3733 |
| Quincy | 10:35:20 | -52.4 | Dark | Up | 33.0 | 259.9 | Up | 10:28:41 - 10:41:58 | 3713 |
| Portola | 10:35:18 | -52.1 | Dark | Up | 32.7 | 260.4 | Up | 10:28:40 - 10:41:57 | 3706 |
| Reno | 10:35:17 | -51.7 | Dark | Up | 32.2 | 261.0 | Up | 10:28:38 - 10:41:55 | 3686 |
| Carson City | 10:35:16 | -51.8 | Dark | Up | 32.3 | 261.2 | Up | 10:28:37 - 10:41:54 | 3650 |
| Yerington | 10:35:14 | -51.3 | Dark | Up | 31.8 | 261.8 | Up | 10:28:36 - 10:41:53 | 3637 |
| Gardnerville | 10:35:16 | -51.8 | Dark | Up | 32.3 | 261.4 | Up | 10:28:37 - 10:41:54 | 3626 |
| Hawthorne | 10:35:12 | -51.0 | Dark | Up | 31.5 | 262.4 | Up | 10:28:34 - 10:41:51 | 3596 |
| Tonopah | 10:35:09 | -50.0 | Dark | Up | 30.5 | 263.7 | Up | 10:28:31 - 10:41:48 | 3565 |
| Lee Vining | 10:35:12 | -51.5 | Dark | Up | 32.0 | 262.4 | Up | 10:28:34 - 10:41:51 | 3534 |
| Bishop | 10:35:10 | -51.1 | Dark | Up | 31.5 | 263.3 | Up | 10:28:31 - 10:41:48 | 3481 |
| Beatty | 10:35:06 | -49.8 | Dark | Up | 30.2 | 264.6 | Up | 10:28:27 - 10:41:44 | 3453 |
| Indian Springs | 10:35:03 | -49.0 | Dark | Up | 29.4 | 265.5 | Low | 10:28:25 - 10:41:42 | 3433 |
| Henderson | 10:35:01 | -48.5 | Dark | Up | 28.9 | 266.2 | Low | 10:28:22 - 10:41:39 | 3388 |
| Patrick | 10:34:57 | -47.7 | Dark | Up | 28.0 | 267.2 | Low | 10:28:19 - 10:41:36 | 3338 |
| Searchlight/Boulder City | 10:35:00 | -48.6 | Dark | Up | 28.9 | 266.6 | Low | 10:28:21 - 10:41:38 | 3330 |
| DCO | 10:34:56 | -47.2 | Dark | Up | 27.5 | 267.8 | Low | 10:28:17 - 10:41:34 | 3317 |
| Kingman/Dolan Springs | 10:34:57 | -47.9 | Dark | Up | 28.2 | 267.2 | Low | 10:28:19 - 10:41:36 | 3313 |
| Laughlin/Bullhead City | 10:34:59 | -48.3 | Dark | Up | 28.6 | 266.9 | Low | 10:28:20 - 10:41:37 | 3304 |
| Mohave Valley | 10:34:58 | -48.3 | Dark | Up | 28.6 | 267.1 | Low | 10:28:19 - 10:41:36 | 3276 |
| CPSLO | 10:35:11 | -53.2 | Dark | Up | 33.5 | 263.1 | Up | 10:28:32 - 10:41:49 | 3245 |
| Lake Havasu City | 10:34:57 | -48.1 | Dark | Up | 28.4 | 267.4 | Low | 10:28:18 - 10:41:35 | 3238 |
| Parker | 10:34:56 | -48.1 | Dark | Up | 28.4 | 267.7 | Low | 10:28:18 - 10:41:35 | 3202 |
| George/Scottsdale | 10:34:51 | -46.1 | Dark | Up | 26.4 | 269.3 | Low | 10:28:12 - 10:41:29 | 3192 |
| Blythe | 10:34:56 | -48.4 | Dark | Up | 28.7 | 267.8 | Low | 10:28:17 - 10:41:34 | 3144 |
| Wildwood | 10:35:05 | -51.7 | Dark | Up | 32.0 | 265.2 | Up | 10:28:26 - 10:41:43 | 3143 |
| Idyllwild | 10:35:00 | -50.2 | Dark | Up | 30.5 | 266.5 | Up | 10:28:21 - 10:41:38 | 3129 |
| Calipatria | 10:34:57 | -49.2 | Dark | Up | 29.5 | 267.5 | Low | 10:28:18 - 10:41:35 | 3080 |
| Yuma | 10:34:54 | -48.5 | Dark | Up | 28.8 | 268.2 | Low | 10:28:16 - 10:41:33 | 3047 |
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 10TS191, (2020/12/09 10:39UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 10.65 117 Menkar 03:02:16.8 +04:05:21 2.5 15.86 142 PPM 119411 03:51:15.9 +13:02:45 6.2 0.85 128 PPM 119438 03:53:45.4 +13:30:18 8.5 0.26 127 PPM 119428 03:52:47.1 +13:56:49 9.7 0.25 127 10TS191 03:53:19.0 +13:44:13 13.6 127 Positions are for J2000
Event circumstances last updated at 2020/12/02 11:34:28 UT
Marc W. Buie, Southwest Research Institute