Event between 04TX357 and star GA1260:02356617 with event index number of 1000851
Geocentric closest approach at 2020/11/20 03:19:35 UTC
J2000 position of star is 05:49:29.1 +36:28:57
Equinox of date position of star is 05:50:52.3 +36:29:14
Stellar brightness G=15.1,
use SENSEUP=128
Star is 143 degrees from the moon.
Moon is 29% illuminated.
TNO apparent brightness V=24.7
[RECON map]
TNO is 29.0 AU from the Sun
and 28.2 AU from the Earth.
The TNO is moving 20.8
km/sec on the sky relative to the star, or,
3.7 arcsec/hr.
The 1-sigma error in the time of the event is 782 seconds.
The 1-sigma cross-track error in the shadow position is
3690 km.
The sky-plane scale is
20460.1 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=111.2 km assuming a 5% albedo -- 2.9 sec chord
Diameter=45.4 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is 4:3E
Star training set for 04TX357, (2020/11/20 03:20UT) Object RA Dec mag sep mel Aldebaran 04:37:07.3 +16:32:59 0.8 25.78 125 34Bet Aur 06:01:03.7 +44:56:50 1.9 8.68 143 31Ups Aur 05:52:28.0 +37:18:34 6.3 0.88 143 PPM 070891 05:50:50.1 +36:11:14 9.1 0.30 143 PPM 070864 05:49:48.4 +36:35:23 10.1 0.24 143 04TX357 05:50:54.0 +36:29:15 15.1 143 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
1.2 sigma about the mid-time.
The median site spacing is 17.6 km
RECON observability=0.4 and success probability=5.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 03:23:34 | -28.5 | Dark | Up | 20.5 | 57.6 | Low | 03:08:34 - 03:38:34 | 8092 |
| Clarence Fulton | 03:23:29 | -31.1 | Dark | Up | 23.7 | 60.8 | Low | 03:08:29 - 03:38:29 | 8026 |
| Peachland | 03:23:31 | -30.8 | Dark | Up | 23.2 | 60.3 | Low | 03:08:31 - 03:38:31 | 8012 |
| Kelowna | 03:23:31 | -31.0 | Dark | Up | 23.4 | 60.5 | Low | 03:08:31 - 03:38:31 | 8007 |
| Summerland | 03:23:32 | -30.9 | Dark | Up | 23.2 | 60.3 | Low | 03:08:32 - 03:38:32 | 7998 |
| Penticton | 03:23:32 | -31.0 | Dark | Up | 23.2 | 60.4 | Low | 03:08:32 - 03:38:32 | 7988 |
| Oliver | 03:23:32 | -31.0 | Dark | Up | 23.0 | 60.2 | Low | 03:08:32 - 03:38:32 | 7964 |
| Anarchist Mountain Observatory | 03:23:34 | -31.2 | Dark | Up | 23.0 | 60.3 | Low | 03:08:34 - 03:38:34 | 7944 |
| Tonasket | 03:23:34 | -31.1 | Dark | Up | 22.9 | 60.1 | Low | 03:08:34 - 03:38:34 | 7926 |
| Okanogan | 03:23:36 | -31.1 | Dark | Up | 22.6 | 59.9 | Low | 03:08:36 - 03:38:36 | 7909 |
| Manson/Chelan | 03:23:38 | -30.7 | Dark | Up | 22.0 | 59.4 | Low | 03:08:38 - 03:38:38 | 7902 |
| Brewster | 03:23:37 | -31.0 | Dark | Up | 22.4 | 59.7 | Low | 03:08:37 - 03:38:37 | 7900 |
| Entiat | 03:23:38 | -30.7 | Dark | Up | 21.9 | 59.3 | Low | 03:08:38 - 03:38:38 | 7890 |
| Wenatchee | 03:23:40 | -30.7 | Dark | Up | 21.7 | 59.2 | Low | 03:08:40 - 03:38:40 | 7877 |
| Ellensburg | 03:23:40 | -30.5 | Dark | Up | 21.4 | 58.9 | Low | 03:08:40 - 03:38:40 | 7858 |
| Yakima | 03:23:42 | -30.6 | Dark | Up | 21.1 | 58.7 | Low | 03:08:42 - 03:38:42 | 7830 |
| Toppenish/White Swan | 03:23:42 | -30.7 | Dark | Up | 21.1 | 58.8 | Low | 03:08:42 - 03:38:42 | 7807 |
| The Dalles | 03:23:45 | -30.2 | Dark | Up | 20.3 | 58.1 | Low | 03:08:45 - 03:38:45 | 7790 |
| Goldendale | 03:23:44 | -30.4 | Dark | Up | 20.6 | 58.4 | Low | 03:08:44 - 03:38:44 | 7788 |
| Maupin | 03:23:46 | -30.3 | Dark | Up | 20.1 | 58.0 | Low | 03:08:46 - 03:38:46 | 7755 |
| Pasco | 03:23:42 | -31.6 | Dark | Up | 21.8 | 59.5 | Low | 03:08:42 - 03:38:42 | 7740 |
| Sisters | 03:23:49 | -29.9 | Dark | Up | 19.3 | 57.5 | Really Low | 03:08:49 - 03:38:49 | 7716 |
| PNWRO | 03:23:43 | -31.7 | Dark | Up | 21.8 | 59.5 | Low | 03:08:43 - 03:38:43 | 7711 |
| Redmond | 03:23:49 | -30.2 | Dark | Up | 19.6 | 57.7 | Really Low | 03:08:49 - 03:38:49 | 7695 |
| Bend | 03:23:50 | -30.1 | Dark | Up | 19.4 | 57.5 | Really Low | 03:08:50 - 03:38:50 | 7687 |
| Oregon Observatory | 03:23:50 | -30.0 | Dark | Up | 19.2 | 57.4 | Really Low | 03:08:50 - 03:38:50 | 7681 |
| La Pine/Gilchrist | 03:23:51 | -30.0 | Dark | Up | 19.1 | 57.3 | Really Low | 03:08:51 - 03:38:51 | 7669 |
| North Lake | 03:23:53 | -30.5 | Dark | Up | 19.2 | 57.5 | Really Low | 03:08:53 - 03:38:53 | 7608 |
| Klamath Falls | 03:23:55 | -29.8 | Dark | Up | 18.1 | 56.8 | Really Low | 03:08:55 - 03:38:55 | 7577 |
| Paisley | 03:23:53 | -30.7 | Dark | Up | 19.1 | 57.6 | Really Low | 03:08:53 - 03:38:53 | 7550 |
| Lakeview | 03:23:56 | -30.9 | Dark | Up | 19.0 | 57.5 | Really Low | 03:08:56 - 03:38:56 | 7503 |
| Fall River/Burney | 03:23:59 | -30.1 | Dark | Up | 17.7 | 56.7 | Really Low | 03:08:59 - 03:38:59 | 7471 |
| Cedarville | 03:23:57 | -31.0 | Dark | Up | 18.7 | 57.4 | Really Low | 03:08:57 - 03:38:57 | 7445 |
| Susanville | 03:24:01 | -30.7 | Dark | Up | 17.8 | 56.9 | Really Low | 03:09:01 - 03:39:01 | 7386 |
| Greenville | 03:24:02 | -30.4 | Dark | Up | 17.5 | 56.7 | Really Low | 03:09:02 - 03:39:02 | 7380 |
| Gimple | 03:24:01 | -30.5 | Dark | Up | 17.6 | 56.7 | Really Low | 03:09:01 - 03:39:01 | 7375 |
| Quincy | 03:24:02 | -30.4 | Dark | Up | 17.4 | 56.6 | Really Low | 03:09:02 - 03:39:02 | 7364 |
| Portola | 03:24:02 | -30.8 | Dark | Up | 17.6 | 56.8 | Really Low | 03:09:02 - 03:39:02 | 7330 |
| Reno | 03:24:03 | -31.3 | Dark | Up | 17.9 | 57.1 | Really Low | 03:09:03 - 03:39:03 | 7276 |
| Carson City | 03:24:04 | -31.3 | Dark | Up | 17.7 | 57.0 | Really Low | 03:09:04 - 03:39:04 | 7248 |
| Gardnerville | 03:24:05 | -31.4 | Dark | Up | 17.6 | 57.0 | Really Low | 03:09:05 - 03:39:05 | 7226 |
| Yerington | 03:24:05 | -31.8 | Dark | Up | 18.1 | 57.3 | Really Low | 03:09:05 - 03:39:05 | 7199 |
| Hawthorne | 03:24:05 | -32.2 | Dark | Up | 18.1 | 57.4 | Really Low | 03:09:05 - 03:39:05 | 7135 |
| Lee Vining | 03:24:06 | -31.8 | Dark | Up | 17.5 | 57.0 | Really Low | 03:09:06 - 03:39:06 | 7117 |
| Bishop | 03:24:09 | -32.4 | Dark | Up | 17.7 | 57.2 | Really Low | 03:09:09 - 03:39:09 | 7031 |
| Tonopah | 03:24:07 | -33.3 | Dark | Up | 18.8 | 57.9 | Really Low | 03:09:07 - 03:39:07 | 7025 |
| CPSLO | 03:24:13 | -30.5 | Dark | Up | 15.0 | 55.7 | Really Low | 03:09:13 - 03:39:13 | 6990 |
| Beatty | 03:24:10 | -33.7 | Dark | Up | 18.5 | 57.8 | Really Low | 03:09:10 - 03:39:10 | 6907 |
| Indian Springs | 03:24:11 | -34.6 | Dark | Up | 19.1 | 58.2 | Really Low | 03:09:11 - 03:39:11 | 6823 |
| Wildwood | 03:24:17 | -32.1 | Dark | Up | 15.8 | 56.3 | Really Low | 03:09:17 - 03:39:17 | 6779 |
| Henderson | 03:24:10 | -35.1 | Dark | Up | 19.3 | 58.4 | Really Low | 03:09:10 - 03:39:10 | 6742 |
| Searchlight/Boulder City | 03:24:12 | -35.2 | Dark | Up | 19.0 | 58.2 | Really Low | 03:09:12 - 03:39:12 | 6692 |
| Laughlin/Bullhead City | 03:24:13 | -35.5 | Dark | Up | 19.1 | 58.3 | Really Low | 03:09:13 - 03:39:13 | 6648 |
| Idyllwild | 03:24:17 | -33.7 | Dark | Up | 16.9 | 57.0 | Really Low | 03:09:17 - 03:39:17 | 6646 |
| Patrick | 03:24:12 | -36.1 | Dark | Up | 19.8 | 58.7 | Really Low | 03:09:12 - 03:39:12 | 6631 |
| Mohave Valley | 03:24:13 | -35.5 | Dark | Up | 19.0 | 58.2 | Really Low | 03:09:13 - 03:39:13 | 6625 |
| Kingman/Dolan Springs | 03:24:13 | -35.9 | Dark | Up | 19.5 | 58.5 | Really Low | 03:09:13 - 03:39:13 | 6622 |
| Niwot | 03:23:54 | -42.4 | Dark | Up | 28.0 | 64.4 | Low | 03:08:54 - 03:38:54 | 6596 |
| SwRI | 03:23:54 | -42.4 | Dark | Up | 27.9 | 64.3 | Low | 03:08:54 - 03:38:54 | 6591 |
| Lake Havasu City | 03:24:15 | -35.7 | Dark | Up | 19.0 | 58.2 | Really Low | 03:09:15 - 03:39:15 | 6578 |
| DCO | 03:24:12 | -36.6 | Dark | Up | 20.1 | 58.9 | Low | 03:09:12 - 03:39:12 | 6568 |
| Parker | 03:24:15 | -35.7 | Dark | Up | 18.8 | 58.1 | Really Low | 03:09:15 - 03:39:15 | 6547 |
| Calipatria | 03:24:17 | -34.7 | Dark | Up | 17.4 | 57.3 | Really Low | 03:09:17 - 03:39:17 | 6529 |
| Blythe | 03:24:16 | -35.5 | Dark | Up | 18.3 | 57.9 | Really Low | 03:09:16 - 03:39:16 | 6519 |
| Yuma | 03:24:19 | -35.4 | Dark | Up | 17.8 | 57.6 | Really Low | 03:09:19 - 03:39:19 | 6443 |
| George/Scottsdale | 03:24:15 | -37.7 | Dark | Up | 20.3 | 59.0 | Low | 03:09:15 - 03:39:15 | 6380 |
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 04TX357, (2020/11/20 03:20UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 25.78 125 34Bet Aur 05:59:31.6 +44:56:51 1.9 8.68 143 31Ups Aur 05:51:02.5 +37:18:19 6.3 0.88 143 PPM 070891 05:49:25.5 +36:10:56 9.1 0.30 143 PPM 070864 05:48:23.5 +36:35:03 10.1 0.24 143 04TX357 05:49:29.1 +36:28:57 15.1 143 Positions are for J2000
Event circumstances last updated at 2020/06/21 22:46:32 UT
Marc W. Buie, Southwest Research Institute