Event between (471155) 10GF65 and star GA0540:10453474 with event index number of 276821
Geocentric closest approach at 2020/07/02 05:05:53 UTC
J2000 position of star is 16:32:29.5 -34:23:03
Equinox of date position of star is 16:33:49.8 -34:25:35
Stellar brightness G=14.9,
use SENSEUP=128
Star is 18 degrees from the moon.
Moon is 89% illuminated.
TNO apparent brightness V=23.7
[RECON map]
TNO is 23.0 AU from the Sun
and 22.1 AU from the Earth.
The TNO is moving 18.8
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 615 seconds.
The 1-sigma cross-track error in the shadow position is
4762 km.
The sky-plane scale is
16025.5 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=229.1 km assuming a 5% albedo -- 3.2 sec chord
Diameter=93.5 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
Star training set for 471155, (2020/07/02 05:06UT) Object RA Dec mag sep mel Antares 16:30:40.1 -26:28:33 0.9 7.98 10 26Eps Sco 16:51:29.7 -34:19:43 2.3 3.65 19 PPM 295143 16:32:43.6 -34:44:50 4.2 0.39 18 PPM 295183 16:34:57.2 -34:26:16 8.4 0.23 18 PPM 295164 16:33:43.4 -34:16:52 8.8 0.15 17 471155 16:33:49.9 -34:25:35 14.9 18 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
1.5 sigma about the mid-time.
The median site spacing is 10.5 km
RECON observability=0.2 and success probability=1.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Niwot | 05:07:07 | -21.2 | Dark | Up | 15.4 | 183.6 | Really Low | 04:52:07 - 05:22:07 | 4898 |
| SwRI | 05:07:07 | -21.3 | Dark | Up | 15.5 | 183.5 | Really Low | 04:52:07 - 05:22:07 | 4892 |
| Clarence Fulton | 05:08:02 | -7.3 | NT | Up | 4.9 | 172.0 | Really Low | 04:53:02 - 05:23:02 | 4771 |
| Kelowna | 05:08:03 | -7.6 | NT | Up | 5.3 | 171.8 | Really Low | 04:53:03 - 05:23:03 | 4761 |
| Penticton | 05:08:03 | -7.8 | NT | Up | 5.6 | 171.8 | Really Low | 04:53:03 - 05:23:03 | 4753 |
| Summerland | 05:08:04 | -7.7 | NT | Up | 5.5 | 171.7 | Really Low | 04:53:04 - 05:23:04 | 4751 |
| Peachland | 05:08:04 | -7.5 | NT | Up | 5.4 | 171.6 | Really Low | 04:53:04 - 05:23:04 | 4751 |
| Anarchist Mountain Observatory | 05:08:03 | -8.3 | NT | Up | 6.2 | 171.9 | Really Low | 04:53:03 - 05:23:03 | 4750 |
| Oliver | 05:08:04 | -8.1 | NT | Up | 6.0 | 171.7 | Really Low | 04:53:04 - 05:23:04 | 4747 |
| Tonasket | 05:08:03 | -8.5 | NT | Up | 6.5 | 171.8 | Really Low | 04:53:03 - 05:23:03 | 4742 |
| Okanogan | 05:08:04 | -8.7 | NT | Up | 6.8 | 171.7 | Really Low | 04:53:04 - 05:23:04 | 4732 |
| Brewster | 05:08:05 | -8.8 | NT | Up | 7.0 | 171.5 | Really Low | 04:53:05 - 05:23:05 | 4721 |
| Manson/Chelan | 05:08:06 | -8.8 | NT | Up | 7.2 | 171.2 | Really Low | 04:53:06 - 05:23:06 | 4707 |
| PNWRO | 05:08:03 | -10.8 | NT | Up | 9.2 | 172.2 | Really Low | 04:53:03 - 05:23:03 | 4704 |
| Pasco | 05:08:03 | -10.5 | NT | Up | 8.9 | 172.1 | Really Low | 04:53:03 - 05:23:03 | 4703 |
| Entiat | 05:08:07 | -8.9 | NT | Up | 7.4 | 171.2 | Really Low | 04:53:07 - 05:23:07 | 4701 |
| Wenatchee | 05:08:07 | -9.1 | NT | Up | 7.6 | 171.1 | Really Low | 04:53:07 - 05:23:07 | 4693 |
| Ellensburg | 05:08:09 | -9.3 | NT | Up | 8.0 | 170.9 | Really Low | 04:53:09 - 05:23:09 | 4678 |
| Toppenish/White Swan | 05:08:08 | -9.9 | NT | Up | 8.7 | 171.0 | Really Low | 04:53:08 - 05:23:08 | 4669 |
| Yakima | 05:08:09 | -9.6 | NT | Up | 8.4 | 170.9 | Really Low | 04:53:09 - 05:23:09 | 4669 |
| Goldendale | 05:08:09 | -10.1 | NT | Up | 9.2 | 170.7 | Really Low | 04:53:09 - 05:23:09 | 4644 |
| The Dalles | 05:08:12 | -10.1 | NT | Up | 9.3 | 170.4 | Really Low | 04:53:12 - 05:23:12 | 4628 |
| Victoria | 05:08:17 | -6.9 | NT | Up | 6.2 | 168.6 | Really Low | 04:53:17 - 05:23:17 | 4626 |
| Maupin | 05:08:11 | -10.4 | NT | Up | 9.8 | 170.4 | Really Low | 04:53:11 - 05:23:11 | 4621 |
| Redmond | 05:08:12 | -11.1 | NT | Up | 10.6 | 170.3 | Really Low | 04:53:12 - 05:23:12 | 4596 |
| Bend | 05:08:13 | -11.2 | NT | Up | 10.8 | 170.2 | Really Low | 04:53:13 - 05:23:13 | 4586 |
| Sisters | 05:08:14 | -10.9 | NT | Up | 10.6 | 170.0 | Really Low | 04:53:14 - 05:23:14 | 4584 |
| Oregon Observatory | 05:08:14 | -11.2 | NT | Up | 11.0 | 170.1 | Really Low | 04:53:14 - 05:23:14 | 4578 |
| North Lake | 05:08:12 | -12.0 | NT | Up | 11.7 | 170.5 | Really Low | 04:53:12 - 05:23:12 | 4577 |
| Paisley | 05:08:11 | -12.6 | AT | Up | 12.3 | 170.8 | Really Low | 04:53:11 - 05:23:11 | 4572 |
| La Pine/Gilchrist | 05:08:13 | -11.4 | NT | Up | 11.2 | 170.0 | Really Low | 04:53:13 - 05:23:13 | 4570 |
| Lakeview | 05:08:10 | -13.0 | AT | Up | 12.8 | 170.9 | Really Low | 04:53:10 - 05:23:10 | 4563 |
| Cedarville | 05:08:09 | -13.6 | AT | Up | 13.5 | 171.1 | Really Low | 04:53:09 - 05:23:09 | 4549 |
| DCO | 05:07:40 | -22.0 | Dark | Up | 20.4 | 176.8 | Low | 04:52:40 - 05:22:40 | 4537 |
| Patrick | 05:07:43 | -21.4 | Dark | Up | 20.1 | 176.2 | Low | 04:52:43 - 05:22:43 | 4528 |
| Tonopah | 05:07:58 | -17.7 | AT | Up | 17.2 | 173.4 | Really Low | 04:52:58 - 05:22:58 | 4527 |
| Klamath Falls | 05:08:16 | -12.3 | AT | Up | 12.6 | 169.8 | Really Low | 04:53:16 - 05:23:16 | 4520 |
| Henderson | 05:07:47 | -20.4 | Dark | Up | 19.4 | 175.2 | Really Low | 04:52:47 - 05:22:47 | 4519 |
| Indian Springs | 05:07:51 | -19.6 | Dark | Up | 18.8 | 174.7 | Really Low | 04:52:51 - 05:22:51 | 4519 |
| George/Scottsdale | 05:07:33 | -23.7 | Dark | Up | 21.9 | 177.9 | Low | 04:52:33 - 05:22:33 | 4518 |
| Kingman/Dolan Springs | 05:07:44 | -21.5 | Dark | Up | 20.3 | 176.0 | Low | 04:52:44 - 05:22:44 | 4514 |
| Searchlight/Boulder City | 05:07:47 | -20.9 | Dark | Up | 20.0 | 175.3 | Really Low | 04:52:47 - 05:22:47 | 4500 |
| Hawthorne | 05:08:04 | -16.6 | AT | Up | 16.6 | 172.2 | Really Low | 04:53:04 - 05:23:04 | 4499 |
| Susanville | 05:08:12 | -14.2 | AT | Up | 14.5 | 170.6 | Really Low | 04:53:12 - 05:23:12 | 4499 |
| Yerington | 05:08:06 | -16.0 | AT | Up | 16.1 | 171.8 | Really Low | 04:53:06 - 05:23:06 | 4499 |
| Beatty | 05:07:56 | -18.8 | Dark | Up | 18.4 | 173.8 | Really Low | 04:52:56 - 05:22:56 | 4498 |
| Laughlin/Bullhead City | 05:07:46 | -21.3 | Dark | Up | 20.3 | 175.6 | Low | 04:52:46 - 05:22:46 | 4498 |
| Reno | 05:08:08 | -15.3 | AT | Up | 15.5 | 171.3 | Really Low | 04:53:08 - 05:23:08 | 4497 |
| Fall River/Burney | 05:08:15 | -13.4 | AT | Up | 13.8 | 170.0 | Really Low | 04:53:15 - 05:23:15 | 4495 |
| Mohave Valley | 05:07:46 | -21.5 | Dark | Up | 20.6 | 175.6 | Low | 04:52:46 - 05:22:46 | 4487 |
| Carson City | 05:08:08 | -15.6 | AT | Up | 15.8 | 171.3 | Really Low | 04:53:08 - 05:23:08 | 4485 |
| Portola | 05:08:11 | -14.8 | AT | Up | 15.1 | 170.7 | Really Low | 04:53:11 - 05:23:11 | 4485 |
| Gimple | 05:08:12 | -14.3 | AT | Up | 14.8 | 170.4 | Really Low | 04:53:12 - 05:23:12 | 4483 |
| Greenville | 05:08:13 | -14.3 | AT | Up | 14.7 | 170.4 | Really Low | 04:53:13 - 05:23:13 | 4480 |
| Lake Havasu City | 05:07:44 | -21.9 | Dark | Up | 21.0 | 175.8 | Low | 04:52:44 - 05:22:44 | 4479 |
| Gardnerville | 05:08:08 | -15.8 | AT | Up | 16.1 | 171.3 | Really Low | 04:53:08 - 05:23:08 | 4478 |
| Quincy | 05:08:13 | -14.4 | AT | Up | 14.9 | 170.4 | Really Low | 04:53:13 - 05:23:13 | 4474 |
| Parker | 05:07:44 | -22.2 | Dark | Up | 21.3 | 175.8 | Low | 04:52:44 - 05:22:44 | 4465 |
| Bishop | 05:08:02 | -17.6 | AT | Up | 17.8 | 172.4 | Really Low | 04:53:02 - 05:23:02 | 4465 |
| Lee Vining | 05:08:06 | -16.8 | AT | Up | 17.1 | 171.8 | Really Low | 04:53:06 - 05:23:06 | 4464 |
| Blythe | 05:07:45 | -22.5 | Dark | Up | 21.8 | 175.5 | Low | 04:52:45 - 05:22:45 | 4435 |
| Yuma | 05:07:45 | -23.2 | Dark | Up | 22.8 | 175.4 | Low | 04:52:45 - 05:22:45 | 4394 |
| Calipatria | 05:07:49 | -22.4 | Dark | Up | 22.3 | 174.7 | Low | 04:52:49 - 05:22:49 | 4385 |
| Idyllwild | 05:07:55 | -21.3 | Dark | Up | 21.6 | 173.7 | Low | 04:52:55 - 05:22:55 | 4375 |
| Wildwood | 05:08:04 | -20.0 | Dark | Up | 21.0 | 172.0 | Low | 04:53:04 - 05:23:04 | 4328 |
| CPSLO | 05:08:12 | -18.0 | AT | Up | 19.6 | 170.4 | Really Low | 04:53:12 - 05:23:12 | 4309 |
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 471155, (2020/07/02 05:06UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 7.98 10 26Eps Sco 16:50:08.8 -34:17:41 2.3 3.65 19 PPM 295143 16:31:22.9 -34:42:16 4.2 0.39 18 PPM 295183 16:33:36.7 -34:23:46 8.4 0.23 18 PPM 295164 16:32:23.0 -34:14:19 8.8 0.15 17 471155 16:32:29.5 -34:23:03 14.9 17 Positions are for J2000
Event circumstances last updated at 2020/06/21 04:26:32 UT
Marc W. Buie, Southwest Research Institute