Event between 13VF24 and star GA1020:00877286 with event index number of 1032325
Geocentric closest approach at 2021/01/07 01:53:32 UTC
J2000 position of star is 05:33:39.6 +12:54:42
Equinox of date position of star is 05:34:50.5 +12:55:29
Stellar brightness G=14.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 123 degrees from the moon.
Moon is 42% illuminated.
TNO apparent brightness V=22.6
[RECON map]
TNO is 27.2 AU from the Sun
and 26.3 AU from the Earth.
The TNO is moving 22.0
km/sec on the sky relative to the star, or,
4.2 arcsec/hr.
The 1-sigma error in the time of the event is 43 seconds.
The 1-sigma cross-track error in the shadow position is
952 km.
The sky-plane scale is
19048.3 km/arcsec.
The TNO has an absolute magnitude Hv=8.2
Diameter=140.6 km assuming a 5% albedo -- 6.4 sec chord
Diameter=57.4 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 13VF24, (2021/01/07 01:54UT) Object RA Dec mag sep mel Betelgeuse 05:56:18.6 +07:24:33 0.4 7.64 117 Bellatrix 05:26:15.6 +06:22:01 1.6 6.89 125 35 Ori 05:35:06.0 +14:19:06 5.6 1.40 122 PPM 121142 05:36:31.7 +13:17:47 7.9 0.55 122 PPM 121087 05:34:05.5 +13:03:55 9.8 0.23 123 13VF24 05:34:50.7 +12:55:29 14.7 122 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 27.0 km
RECON observability=0.3 and success probability=0.0%
| 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 | 01:56:51 | -16.0 | AT | Down | 24.8 | 99.8 | Low | 01:52:45 - 02:00:58 | 8812 |
| Kelowna | 01:56:51 | -15.8 | AT | Down | 24.7 | 99.5 | Low | 01:52:45 - 02:00:58 | 8780 |
| Peachland | 01:56:53 | -15.6 | AT | Down | 24.6 | 99.2 | Low | 01:52:46 - 02:00:59 | 8774 |
| Summerland | 01:56:53 | -15.6 | AT | Down | 24.6 | 99.2 | Low | 01:52:47 - 02:01:00 | 8759 |
| Penticton | 01:56:53 | -15.6 | AT | Down | 24.7 | 99.3 | Low | 01:52:47 - 02:01:00 | 8752 |
| Oliver | 01:56:54 | -15.6 | AT | Down | 24.8 | 99.1 | Low | 01:52:48 - 02:01:01 | 8721 |
| Victoria | 01:57:00 | -12.9 | AT | Down | 22.4 | 95.8 | Low | 01:52:54 - 02:01:07 | 8707 |
| Anarchist Mountain Observatory | 01:56:55 | -15.6 | AT | Down | 24.9 | 99.2 | Low | 01:52:48 - 02:01:01 | 8704 |
| Tonasket | 01:56:56 | -15.5 | AT | Down | 24.9 | 99.0 | Low | 01:52:49 - 02:01:02 | 8677 |
| Okanogan | 01:56:57 | -15.3 | AT | Down | 24.9 | 98.7 | Low | 01:52:50 - 02:01:03 | 8649 |
| Brewster | 01:56:58 | -15.1 | AT | Down | 24.8 | 98.4 | Low | 01:52:51 - 02:01:04 | 8627 |
| Manson/Chelan | 01:56:59 | -14.8 | AT | Down | 24.6 | 98.0 | Low | 01:52:52 - 02:01:05 | 8612 |
| Entiat | 01:57:00 | -14.7 | AT | Down | 24.6 | 97.9 | Low | 01:52:53 - 02:01:06 | 8593 |
| Wenatchee | 01:57:00 | -14.6 | AT | Down | 24.6 | 97.7 | Low | 01:52:54 - 02:01:07 | 8572 |
| Ellensburg | 01:57:01 | -14.3 | AT | Down | 24.5 | 97.3 | Low | 01:52:55 - 02:01:08 | 8537 |
| Yakima | 01:57:03 | -14.2 | AT | Down | 24.5 | 97.2 | Low | 01:52:57 - 02:01:10 | 8500 |
| Toppenish/White Swan | 01:57:04 | -14.2 | AT | Down | 24.7 | 97.2 | Low | 01:52:57 - 02:01:10 | 8478 |
| Pasco | 01:57:02 | -15.0 | AT | Down | 25.5 | 98.1 | Low | 01:52:55 - 02:01:08 | 8452 |
| Goldendale | 01:57:06 | -13.8 | AT | Down | 24.4 | 96.6 | Low | 01:52:59 - 02:01:12 | 8433 |
| PNWRO | 01:57:03 | -15.1 | AT | Down | 25.7 | 98.2 | Low | 01:52:56 - 02:01:09 | 8427 |
| The Dalles | 01:57:06 | -13.5 | AT | Down | 24.2 | 96.2 | Low | 01:53:00 - 02:01:13 | 8416 |
| Maupin | 01:57:08 | -13.4 | AT | Down | 24.3 | 96.1 | Low | 01:53:01 - 02:01:14 | 8377 |
| Sisters | 01:57:11 | -12.8 | AT | Down | 24.1 | 95.4 | Low | 01:53:05 - 02:01:18 | 8301 |
| Redmond | 01:57:10 | -13.1 | AT | Down | 24.4 | 95.7 | Low | 01:53:04 - 02:01:17 | 8294 |
| Bend | 01:57:11 | -12.9 | AT | Down | 24.3 | 95.5 | Low | 01:53:05 - 02:01:18 | 8276 |
| Oregon Observatory | 01:57:12 | -12.8 | AT | Down | 24.2 | 95.3 | Low | 01:53:06 - 02:01:19 | 8261 |
| La Pine/Gilchrist | 01:57:12 | -12.7 | AT | Down | 24.2 | 95.2 | Low | 01:53:06 - 02:01:19 | 8243 |
| North Lake | 01:57:13 | -12.9 | AT | Down | 24.7 | 95.4 | Low | 01:53:07 - 02:01:20 | 8194 |
| Paisley | 01:57:13 | -13.0 | AT | Down | 25.0 | 95.4 | Low | 01:53:07 - 02:01:20 | 8138 |
| Klamath Falls | 01:57:16 | -12.0 | NT | Down | 24.1 | 94.3 | Low | 01:53:09 - 02:01:22 | 8109 |
| Lakeview | 01:57:15 | -13.0 | AT | Down | 25.2 | 95.3 | Low | 01:53:08 - 02:01:21 | 8087 |
| Cedarville | 01:57:16 | -12.9 | AT | Down | 25.4 | 95.1 | Low | 01:53:09 - 02:01:22 | 8022 |
| Fall River/Burney | 01:57:19 | -11.9 | NT | Down | 24.5 | 94.1 | Low | 01:53:13 - 02:01:26 | 7991 |
| Susanville | 01:57:19 | -12.2 | AT | Down | 25.1 | 94.3 | Low | 01:53:13 - 02:01:26 | 7920 |
| Greenville | 01:57:20 | -11.9 | NT | Down | 24.9 | 94.0 | Low | 01:53:14 - 02:01:27 | 7897 |
| Gimple | 01:57:21 | -12.0 | NT | Down | 25.0 | 94.0 | Low | 01:53:14 - 02:01:27 | 7896 |
| Quincy | 01:57:21 | -11.8 | NT | Down | 24.9 | 93.9 | Low | 01:53:15 - 02:01:28 | 7877 |
| Portola | 01:57:21 | -12.1 | AT | Down | 25.3 | 94.1 | Low | 01:53:14 - 02:01:27 | 7859 |
| Reno | 01:57:20 | -12.5 | AT | Down | 25.8 | 94.4 | Low | 01:53:14 - 02:01:27 | 7825 |
| Carson City | 01:57:21 | -12.4 | AT | Down | 25.9 | 94.3 | Low | 01:53:14 - 02:01:27 | 7789 |
| Gardnerville | 01:57:22 | -12.4 | AT | Down | 25.9 | 94.2 | Low | 01:53:15 - 02:01:28 | 7764 |
| Yerington | 01:57:21 | -12.8 | AT | Down | 26.4 | 94.6 | Low | 01:53:14 - 02:01:27 | 7762 |
| Niwot | 01:56:49 | -23.5 | Dark | Down | 36.7 | 105.3 | Up | 01:52:43 - 02:00:56 | 7730 |
| SwRI | 01:56:50 | -23.4 | Dark | Down | 36.7 | 105.1 | Up | 01:52:43 - 02:00:56 | 7720 |
| Hawthorne | 01:57:21 | -13.1 | AT | Down | 26.8 | 94.7 | Low | 01:53:14 - 02:01:27 | 7709 |
| Lee Vining | 01:57:23 | -12.5 | AT | Down | 26.5 | 94.1 | Low | 01:53:16 - 02:01:29 | 7660 |
| Tonopah | 01:57:19 | -14.0 | AT | Down | 28.0 | 95.4 | Low | 01:53:13 - 02:01:26 | 7645 |
| Bishop | 01:57:22 | -12.9 | AT | Down | 27.1 | 94.3 | Low | 01:53:16 - 02:01:29 | 7590 |
| Beatty | 01:57:21 | -14.0 | AT | Down | 28.4 | 95.1 | Low | 01:53:15 - 02:01:28 | 7523 |
| Indian Springs | 01:57:19 | -14.7 | AT | Down | 29.3 | 95.6 | Low | 01:53:12 - 02:01:25 | 7477 |
| Henderson | 01:57:19 | -15.1 | AT | Down | 29.9 | 95.7 | Low | 01:53:13 - 02:01:26 | 7415 |
| CPSLO | 01:57:31 | -10.5 | NT | Down | 25.4 | 91.9 | Low | 01:53:25 - 02:01:38 | 7413 |
| Searchlight/Boulder City | 01:57:19 | -15.0 | AT | Down | 30.0 | 95.5 | Up | 01:53:13 - 02:01:26 | 7356 |
| Patrick | 01:57:19 | -15.8 | AT | Down | 30.9 | 96.1 | Up | 01:53:12 - 02:01:25 | 7338 |
| Laughlin/Bullhead City | 01:57:20 | -15.2 | AT | Down | 30.4 | 95.5 | Up | 01:53:14 - 02:01:27 | 7321 |
| Kingman/Dolan Springs | 01:57:19 | -15.6 | AT | Down | 30.8 | 95.8 | Up | 01:53:13 - 02:01:26 | 7318 |
| DCO | 01:57:17 | -16.2 | AT | Down | 31.5 | 96.3 | Up | 01:53:11 - 02:01:24 | 7299 |
| Mohave Valley | 01:57:20 | -15.1 | AT | Down | 30.4 | 95.3 | Up | 01:53:13 - 02:01:26 | 7293 |
| Wildwood | 01:57:30 | -11.7 | NT | Down | 27.2 | 92.5 | Low | 01:53:23 - 02:01:36 | 7262 |
| Lake Havasu City | 01:57:20 | -15.2 | AT | Down | 30.6 | 95.3 | Up | 01:53:14 - 02:01:27 | 7249 |
| Parker | 01:57:21 | -15.1 | AT | Down | 30.7 | 95.1 | Up | 01:53:15 - 02:01:28 | 7213 |
| Idyllwild | 01:57:27 | -13.1 | AT | Down | 28.7 | 93.4 | Low | 01:53:20 - 02:01:33 | 7201 |
| Blythe | 01:57:23 | -14.7 | AT | Down | 30.5 | 94.6 | Up | 01:53:16 - 02:01:29 | 7162 |
| George/Scottsdale | 01:57:17 | -16.9 | AT | Down | 32.7 | 96.3 | Up | 01:53:10 - 02:01:23 | 7141 |
| Calipatria | 01:57:25 | -13.8 | AT | Down | 29.8 | 93.8 | Low | 01:53:19 - 02:01:32 | 7123 |
| Yuma | 01:57:24 | -14.4 | AT | Down | 30.5 | 94.0 | Up | 01:53:17 - 02:01:30 | 7067 |
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 13VF24, (2021/01/07 01:54UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 7.64 117 Bellatrix 05:25:07.8 +06:20:58 1.6 6.89 125 35 Ori 05:33:54.3 +14:18:20 5.6 1.40 122 PPM 121142 05:35:20.5 +13:17:03 7.9 0.55 122 PPM 121087 05:32:54.4 +13:03:06 9.8 0.23 123 13VF24 05:33:39.6 +12:54:42 14.7 123 Positions are for J2000
Event circumstances last updated at 2020/12/16 22:00:55 UT
Marc W. Buie, Southwest Research Institute