Event between 06HV122 and star GA0620:07696848 with event index number of 1085918
Geocentric closest approach at 2021/05/07 06:07:36 UTC
J2000 position of star is 15:56:46.1 -26:43:02
Equinox of date position of star is 15:58:03.9 -26:46:40
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 114 degrees from the moon.
Moon is 18% illuminated.
TNO apparent brightness V=23.0
[RECON map]
TNO is 40.1 AU from the Sun
and 39.1 AU from the Earth.
The TNO is moving 22.9
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 454 seconds.
The 1-sigma cross-track error in the shadow position is
5612 km.
The sky-plane scale is
28388.7 km/arcsec.
The TNO has an absolute magnitude Hv=7.0
Diameter=243.2 km assuming a 5% albedo -- 10.6 sec chord
Diameter=99.3 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is SCATNEAR
Star training set for 06HV122, (2021/05/07 06:08UT) Object RA Dec mag sep mel Antares 16:30:43.2 -26:28:39 0.9 7.30 107 7Del Sco 16:01:36.0 -22:40:51 2.3 4.17 114 PPM 264761 15:51:52.3 -26:21:11 6.5 1.45 115 PPM 264868 15:56:59.9 -26:48:32 7.6 0.24 114 06HV122 15:58:04.1 -26:46:40 16.6 113 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
2.0 sigma about the mid-time.
The median site spacing is 28.0 km
RECON observability=0.1 and success probability=0.5%
| 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 | 06:09:57 | -19.1 | Dark | Down | 5.0 | 144.2 | Really Low | 05:54:57 - 06:24:57 | 7707 |
| Kelowna | 06:09:58 | -19.4 | Dark | Down | 5.3 | 144.1 | Really Low | 05:54:58 - 06:24:58 | 7688 |
| Peachland | 06:10:00 | -19.4 | Dark | Down | 5.2 | 143.8 | Really Low | 05:55:00 - 06:25:00 | 7675 |
| Penticton | 06:09:59 | -19.6 | Dark | Down | 5.5 | 144.0 | Really Low | 05:54:59 - 06:24:59 | 7672 |
| Summerland | 06:09:58 | -19.6 | Dark | Down | 5.4 | 143.9 | Really Low | 05:54:58 - 06:24:58 | 7672 |
| Oliver | 06:10:00 | -20.0 | Dark | Down | 5.8 | 144.0 | Really Low | 05:55:00 - 06:25:00 | 7657 |
| Anarchist Mountain Observatory | 06:10:00 | -20.2 | Dark | Down | 6.0 | 144.1 | Really Low | 05:55:00 - 06:25:00 | 7656 |
| Tonasket | 06:10:01 | -20.4 | Dark | Down | 6.2 | 144.0 | Really Low | 05:55:01 - 06:25:01 | 7641 |
| Dunrhomin | 06:09:36 | -31.8 | Dark | Down | 18.6 | 155.0 | Really Low | 05:54:36 - 06:24:36 | 7628 |
| Okanogan | 06:10:02 | -20.7 | Dark | Down | 6.4 | 143.9 | Really Low | 05:55:02 - 06:25:02 | 7622 |
| Brewster | 06:10:02 | -20.9 | Dark | Down | 6.6 | 143.7 | Really Low | 05:55:02 - 06:25:02 | 7605 |
| Manson/Chelan | 06:10:04 | -20.9 | Dark | Down | 6.6 | 143.4 | Really Low | 05:55:04 - 06:25:04 | 7586 |
| Wenatchee | 06:10:05 | -21.3 | Dark | Down | 6.9 | 143.2 | Really Low | 05:55:05 - 06:25:05 | 7560 |
| Pasco | 06:10:04 | -22.7 | Dark | Down | 8.3 | 144.1 | Really Low | 05:55:04 - 06:25:04 | 7541 |
| PNWRO | 06:10:05 | -23.0 | Dark | Down | 8.6 | 144.3 | Really Low | 05:55:05 - 06:25:05 | 7536 |
| Ellensburg | 06:10:07 | -21.6 | Dark | Down | 7.2 | 143.0 | Really Low | 05:55:07 - 06:25:07 | 7535 |
| Victoria | 06:10:10 | -19.3 | Dark | Down | 4.8 | 140.9 | Really Low | 05:55:10 - 06:25:10 | 7522 |
| Yakima | 06:10:08 | -22.0 | Dark | Down | 7.5 | 143.0 | Really Low | 05:55:08 - 06:25:08 | 7516 |
| Toppenish/White Swan | 06:10:08 | -22.2 | Dark | Down | 7.7 | 143.1 | Really Low | 05:55:08 - 06:25:08 | 7510 |
| Goldendale | 06:10:10 | -22.6 | Dark | Down | 8.0 | 142.7 | Really Low | 05:55:10 - 06:25:10 | 7472 |
| The Dalles | 06:10:12 | -22.6 | Dark | Down | 8.0 | 142.4 | Really Low | 05:55:12 - 06:25:12 | 7451 |
| Maupin | 06:10:13 | -23.0 | Dark | Down | 8.4 | 142.5 | Really Low | 05:55:13 - 06:25:13 | 7434 |
| Redmond | 06:10:14 | -23.8 | Dark | Down | 9.1 | 142.3 | Really Low | 05:55:14 - 06:25:14 | 7387 |
| Sisters | 06:10:15 | -23.6 | Dark | Down | 8.9 | 142.0 | Really Low | 05:55:15 - 06:25:15 | 7376 |
| Bend | 06:10:15 | -23.9 | Dark | Down | 9.2 | 142.2 | Really Low | 05:55:15 - 06:25:15 | 7372 |
| Oregon Observatory | 06:10:16 | -24.0 | Dark | Down | 9.3 | 142.1 | Really Low | 05:55:16 - 06:25:16 | 7359 |
| La Pine/Gilchrist | 06:10:16 | -24.2 | Dark | Down | 9.4 | 142.0 | Really Low | 05:55:16 - 06:25:16 | 7347 |
| North Lake | 06:10:15 | -24.8 | Dark | Down | 10.0 | 142.4 | Really Low | 05:55:15 - 06:25:15 | 7343 |
| Paisley | 06:10:15 | -25.4 | Dark | Down | 10.6 | 142.7 | Really Low | 05:55:15 - 06:25:15 | 7325 |
| Lakeview | 06:10:16 | -25.9 | Dark | Down | 11.1 | 142.8 | Really Low | 05:55:16 - 06:25:16 | 7304 |
| Chiloquin | 06:10:20 | -25.0 | Dark | Down | 10.1 | 141.6 | Really Low | 05:55:20 - 06:25:20 | 7278 |
| Cedarville | 06:10:17 | -26.6 | Dark | Down | 11.7 | 142.8 | Really Low | 05:55:17 - 06:25:17 | 7275 |
| Klamath Falls | 06:10:20 | -25.4 | Dark | Down | 10.4 | 141.7 | Really Low | 05:55:20 - 06:25:20 | 7262 |
| Fall River/Burney | 06:10:21 | -26.5 | Dark | Down | 11.5 | 141.8 | Really Low | 05:55:21 - 06:25:21 | 7210 |
| Susanville | 06:10:20 | -27.4 | Dark | Down | 12.4 | 142.3 | Really Low | 05:55:20 - 06:25:20 | 7198 |
| Gimple | 06:10:22 | -27.5 | Dark | Down | 12.5 | 142.1 | Really Low | 05:55:22 - 06:25:22 | 7176 |
| Reno | 06:10:20 | -28.4 | Dark | Down | 13.5 | 142.8 | Really Low | 05:55:20 - 06:25:20 | 7176 |
| Greenville | 06:10:22 | -27.5 | Dark | Down | 12.5 | 142.1 | Really Low | 05:55:22 - 06:25:22 | 7173 |
| Tonopah | 06:10:15 | -30.7 | Dark | Down | 15.8 | 144.7 | Really Low | 05:55:15 - 06:25:15 | 7173 |
| Portola | 06:10:20 | -28.0 | Dark | Down | 12.9 | 142.4 | Really Low | 05:55:20 - 06:25:20 | 7170 |
| Yerington | 06:10:19 | -29.2 | Dark | Down | 14.2 | 143.3 | Really Low | 05:55:19 - 06:25:19 | 7165 |
| Quincy | 06:10:22 | -27.7 | Dark | Down | 12.6 | 142.0 | Really Low | 05:55:22 - 06:25:22 | 7162 |
| Carson City | 06:10:20 | -28.8 | Dark | Down | 13.8 | 142.8 | Really Low | 05:55:20 - 06:25:20 | 7156 |
| Hawthorne | 06:10:19 | -29.8 | Dark | Down | 14.8 | 143.6 | Really Low | 05:55:19 - 06:25:19 | 7155 |
| Gardnerville | 06:10:21 | -29.0 | Dark | Down | 14.0 | 142.8 | Really Low | 05:55:21 - 06:25:21 | 7143 |
| Indian Springs | 06:10:13 | -32.6 | Dark | Down | 17.8 | 145.6 | Really Low | 05:55:13 - 06:25:13 | 7133 |
| Henderson | 06:10:12 | -33.3 | Dark | Down | 18.5 | 146.1 | Really Low | 05:55:12 - 06:25:12 | 7122 |
| Patrick | 06:10:09 | -34.2 | Dark | Down | 19.5 | 146.9 | Really Low | 05:55:09 - 06:25:09 | 7119 |
| Beatty | 06:10:15 | -31.9 | Dark | Down | 17.0 | 144.8 | Really Low | 05:55:15 - 06:25:15 | 7119 |
| Lee Vining | 06:10:20 | -30.1 | Dark | Down | 15.0 | 143.2 | Really Low | 05:55:20 - 06:25:20 | 7107 |
| Kingman/Dolan Springs | 06:10:10 | -34.4 | Dark | Down | 19.6 | 146.7 | Really Low | 05:55:10 - 06:25:10 | 7100 |
| Bishop | 06:10:19 | -30.9 | Dark | Down | 15.9 | 143.6 | Really Low | 05:55:19 - 06:25:19 | 7094 |
| Laughlin/Bullhead City | 06:10:11 | -34.2 | Dark | Down | 19.4 | 146.3 | Really Low | 05:55:11 - 06:25:11 | 7082 |
| George/Scottsdale | 06:10:05 | -36.4 | Dark | Down | 21.8 | 148.2 | Low | 05:55:05 - 06:25:05 | 7077 |
| Mohave Valley | 06:10:12 | -34.5 | Dark | Down | 19.7 | 146.2 | Really Low | 05:55:12 - 06:25:12 | 7065 |
| Lake Havasu City | 06:10:12 | -34.9 | Dark | Down | 20.1 | 146.3 | Low | 05:55:12 - 06:25:12 | 7049 |
| Parker | 06:10:12 | -35.2 | Dark | Down | 20.4 | 146.3 | Low | 05:55:12 - 06:25:12 | 7027 |
| Blythe | 06:10:14 | -35.6 | Dark | Down | 20.7 | 145.9 | Low | 05:55:14 - 06:25:14 | 6985 |
| Idyllwild | 06:10:20 | -34.7 | Dark | Down | 19.6 | 144.3 | Really Low | 05:55:20 - 06:25:20 | 6925 |
| Yuma | 06:10:15 | -36.4 | Dark | Down | 21.5 | 145.7 | Low | 05:55:15 - 06:25:15 | 6924 |
| Calipatria | 06:10:17 | -35.7 | Dark | Down | 20.7 | 145.1 | Low | 05:55:17 - 06:25:17 | 6923 |
| CPSLO | 06:10:29 | -31.8 | Dark | Down | 16.4 | 141.5 | Really Low | 05:55:29 - 06:25:29 | 6893 |
| Wildwood | 06:10:24 | -33.7 | Dark | Down | 18.4 | 142.9 | Really Low | 05:55:24 - 06:25:24 | 6885 |
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 06HV122, (2021/05/07 06:08UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 7.30 107 7Del Sco 16:00:20.0 -22:37:18 2.3 4.17 114 PPM 264761 15:50:34.7 -26:17:23 6.5 1.45 115 PPM 264868 15:55:41.9 -26:44:52 7.6 0.24 114 06HV122 15:56:46.1 -26:43:02 16.6 114 Positions are for J2000
Event circumstances last updated at 2021/04/19 23:03:14 UT
Marc W. Buie, Southwest Research Institute