Event between (470308) 07JH43 and star GA0640:09083721 with event index number of 2219027
Geocentric closest approach at 2022/04/11 08:34:23 UTC
J2000 position of star is 16:53:41.3 -25:40:22
Equinox of date position of star is 16:55:03.3 -25:42:28
Stellar brightness G=15.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 121 degrees from the moon.
Moon is 70% illuminated.
TNO apparent brightness V=20.7
[RECON map]
TNO is 40.5 AU from the Sun
and 39.9 AU from the Earth.
The TNO is moving 13.0
km/sec on the sky relative to the star, or,
1.6 arcsec/hr.
The 1-sigma error in the time of the event is 157 seconds.
The 1-sigma cross-track error in the shadow position is
1696 km.
The sky-plane scale is
28972.3 km/arcsec.
The TNO has an absolute magnitude Hv=4.5
Diameter=758.6 km assuming a 5% albedo -- 58.4 sec chord
Diameter=309.7 km assuming a 30% albedo -- 23.8 sec chord
Dynamical classification is SCATNEAR
Star training set for 470308, (2022/04/11 08:34UT) Object RA Dec mag sep mel Antares 16:30:46.6 -26:28:46 0.9 5.51 115 23Tau Sco 16:37:16.4 -28:15:37 2.8 4.71 117 26 Oph 17:01:31.6 -25:01:16 5.8 1.61 122 PPM 266070 16:53:38.3 -25:38:11 7.2 0.33 120 PPM 266095 16:54:59.7 -25:45:15 9.4 0.05 121 470308 16:55:03.6 -25:42:28 15.1 121 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 0.0 km
RECON observability=0.1 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) |
| Sleaford | 08:36:10 | -26.5 | Dark | Up | 7.7 | 152.3 | Really Low | 08:22:33 - 08:49:47 | 13403 |
| Kamloops | 08:37:16 | -30.5 | Dark | Up | 4.0 | 140.4 | Really Low | 08:23:39 - 08:50:53 | 13178 |
| Kelowna | 08:37:15 | -31.2 | Dark | Up | 5.0 | 141.0 | Really Low | 08:23:38 - 08:50:52 | 13167 |
| Peachland | 08:37:17 | -31.3 | Dark | Up | 4.9 | 140.8 | Really Low | 08:23:40 - 08:50:54 | 13159 |
| Summerland | 08:37:18 | -31.5 | Dark | Up | 5.1 | 140.9 | Really Low | 08:23:41 - 08:50:55 | 13156 |
| Penticton | 08:37:17 | -31.5 | Dark | Up | 5.2 | 141.0 | Really Low | 08:23:40 - 08:50:54 | 13155 |
| Oliver | 08:37:18 | -31.9 | Dark | Up | 5.5 | 140.9 | Really Low | 08:23:41 - 08:50:55 | 13144 |
| Anarchist Mountain Observatory | 08:37:19 | -32.0 | Dark | Up | 5.7 | 141.1 | Really Low | 08:23:42 - 08:50:56 | 13142 |
| Tonasket | 08:37:21 | -32.3 | Dark | Up | 5.9 | 141.0 | Really Low | 08:23:44 - 08:50:58 | 13130 |
| Okanogan | 08:37:23 | -32.7 | Dark | Up | 6.1 | 140.9 | Really Low | 08:23:46 - 08:51:00 | 13116 |
| Brewster | 08:37:25 | -32.9 | Dark | Up | 6.2 | 140.7 | Really Low | 08:23:48 - 08:51:02 | 13103 |
| Manson/Chelan | 08:37:27 | -33.2 | Dark | Up | 6.2 | 140.4 | Really Low | 08:23:50 - 08:51:04 | 13089 |
| Wenatchee | 08:37:31 | -33.7 | Dark | Up | 6.5 | 140.2 | Really Low | 08:23:54 - 08:51:08 | 13069 |
| Victoria | 08:37:37 | -32.9 | Dark | Up | 4.3 | 137.9 | Really Low | 08:24:00 - 08:51:14 | 13053 |
| Ellensburg | 08:37:33 | -34.1 | Dark | Up | 6.8 | 140.0 | Really Low | 08:23:56 - 08:51:10 | 13050 |
| PNWRO | 08:37:31 | -34.9 | Dark | Up | 8.2 | 141.3 | Really Low | 08:23:54 - 08:51:08 | 13042 |
| Yakima | 08:37:36 | -34.5 | Dark | Up | 7.1 | 140.0 | Really Low | 08:23:59 - 08:51:13 | 13034 |
| Toppenish/White Swan | 08:37:36 | -34.7 | Dark | Up | 7.3 | 140.1 | Really Low | 08:23:59 - 08:51:13 | 13029 |
| Goldendale | 08:37:39 | -35.3 | Dark | Up | 7.5 | 139.8 | Really Low | 08:24:02 - 08:51:16 | 13000 |
| Dunrhomin | 08:36:45 | -36.7 | Dark | Up | 18.5 | 151.8 | Really Low | 08:23:08 - 08:50:22 | 12998 |
| CU-SBO | 08:36:47 | -36.9 | Dark | Up | 18.6 | 151.7 | Really Low | 08:23:10 - 08:50:24 | 12985 |
| The Dalles | 08:37:40 | -35.6 | Dark | Up | 7.5 | 139.5 | Really Low | 08:24:03 - 08:51:17 | 12984 |
| Maupin | 08:37:44 | -36.0 | Dark | Up | 7.9 | 139.5 | Really Low | 08:24:07 - 08:51:21 | 12970 |
| Sisters | 08:37:50 | -36.9 | Dark | Up | 8.4 | 139.1 | Really Low | 08:24:13 - 08:51:27 | 12924 |
| Bend | 08:37:50 | -37.1 | Dark | Up | 8.7 | 139.2 | Really Low | 08:24:13 - 08:51:27 | 12919 |
| Oregon Observatory | 08:37:51 | -37.3 | Dark | Up | 8.7 | 139.1 | Really Low | 08:24:14 - 08:51:28 | 12910 |
| North Lake | 08:37:52 | -37.8 | Dark | Up | 9.5 | 139.5 | Really Low | 08:24:15 - 08:51:29 | 12892 |
| Lakeview | 08:37:54 | -38.8 | Dark | Up | 10.6 | 139.8 | Really Low | 08:24:17 - 08:51:31 | 12856 |
| Chiloquin | 08:37:57 | -38.6 | Dark | Up | 9.6 | 138.7 | Really Low | 08:24:20 - 08:51:34 | 12843 |
| Klamath Falls | 08:38:01 | -39.0 | Dark | Up | 9.9 | 138.7 | Really Low | 08:24:24 - 08:51:38 | 12829 |
| Cedarville | 08:37:56 | -39.4 | Dark | Up | 11.2 | 139.9 | Really Low | 08:24:19 - 08:51:33 | 12829 |
| Fall River/Burney | 08:38:04 | -40.1 | Dark | Up | 10.9 | 138.9 | Really Low | 08:24:27 - 08:51:41 | 12782 |
| Susanville | 08:38:03 | -40.6 | Dark | Up | 11.8 | 139.4 | Really Low | 08:24:26 - 08:51:40 | 12766 |
| Gimple | 08:38:05 | -40.9 | Dark | Up | 11.9 | 139.2 | Really Low | 08:24:28 - 08:51:42 | 12748 |
| Greenville | 08:38:04 | -40.9 | Dark | Up | 11.8 | 139.1 | Really Low | 08:24:27 - 08:51:41 | 12747 |
| Portola | 08:38:04 | -41.1 | Dark | Up | 12.3 | 139.4 | Really Low | 08:24:27 - 08:51:41 | 12741 |
| Reno | 08:38:03 | -41.3 | Dark | Up | 12.9 | 139.9 | Really Low | 08:24:26 - 08:51:40 | 12740 |
| Quincy | 08:38:04 | -41.1 | Dark | Up | 12.0 | 139.1 | Really Low | 08:24:27 - 08:51:41 | 12737 |
| Yerington | 08:38:02 | -41.7 | Dark | Up | 13.6 | 140.3 | Really Low | 08:24:25 - 08:51:39 | 12725 |
| Carson City | 08:38:03 | -41.7 | Dark | Up | 13.1 | 139.9 | Really Low | 08:24:26 - 08:51:40 | 12723 |
| Tonopah | 08:37:55 | -42.2 | Dark | Up | 15.3 | 141.7 | Really Low | 08:24:18 - 08:51:32 | 12715 |
| Hawthorne | 08:38:01 | -42.1 | Dark | Up | 14.2 | 140.6 | Really Low | 08:24:24 - 08:51:38 | 12712 |
| Gardnerville | 08:38:04 | -41.9 | Dark | Up | 13.4 | 139.9 | Really Low | 08:24:27 - 08:51:41 | 12711 |
| Lee Vining | 08:38:06 | -42.7 | Dark | Up | 14.4 | 140.2 | Really Low | 08:24:29 - 08:51:43 | 12674 |
| Indian Springs | 08:37:53 | -43.3 | Dark | Up | 17.2 | 142.6 | Really Low | 08:24:16 - 08:51:30 | 12664 |
| Beatty | 08:37:56 | -43.3 | Dark | Up | 16.4 | 141.8 | Really Low | 08:24:19 - 08:51:33 | 12662 |
| Bishop | 08:38:04 | -43.2 | Dark | Up | 15.3 | 140.6 | Really Low | 08:24:27 - 08:51:41 | 12656 |
| Henderson | 08:37:50 | -43.6 | Dark | Up | 18.0 | 143.0 | Really Low | 08:24:13 - 08:51:27 | 12647 |
| Patrick | 08:37:48 | -43.9 | Dark | Up | 19.0 | 143.8 | Really Low | 08:24:11 - 08:51:25 | 12632 |
| Kingman/Dolan Springs | 08:37:50 | -44.2 | Dark | Up | 19.1 | 143.6 | Really Low | 08:24:13 - 08:51:27 | 12617 |
| Laughlin/Bullhead City | 08:37:54 | -44.3 | Dark | Up | 18.9 | 143.2 | Really Low | 08:24:17 - 08:51:31 | 12606 |
| Mohave Valley | 08:37:53 | -44.6 | Dark | Up | 19.1 | 143.1 | Really Low | 08:24:16 - 08:51:30 | 12591 |
| Lake Havasu City | 08:37:53 | -44.9 | Dark | Up | 19.5 | 143.3 | Really Low | 08:24:16 - 08:51:30 | 12572 |
| George/Scottsdale | 08:37:42 | -44.8 | Dark | Up | 21.3 | 145.1 | Low | 08:24:05 - 08:51:19 | 12570 |
| Parker | 08:37:54 | -45.2 | Dark | Up | 19.8 | 143.2 | Really Low | 08:24:17 - 08:51:31 | 12553 |
| Idyllwild | 08:38:08 | -46.2 | Dark | Up | 18.9 | 141.3 | Really Low | 08:24:31 - 08:51:45 | 12486 |
| Calipatria | 08:38:07 | -46.5 | Dark | Up | 20.0 | 142.1 | Low | 08:24:30 - 08:51:44 | 12471 |
| Wildwood | 08:38:16 | -46.3 | Dark | Up | 17.7 | 139.9 | Really Low | 08:24:39 - 08:51:53 | 12469 |
| Yuma | 08:38:02 | -46.6 | Dark | Up | 20.8 | 142.6 | Low | 08:24:25 - 08:51:39 | 12462 |
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 470308, (2022/04/11 08:34UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 5.51 115 23Tau Sco 16:35:52.9 -28:12:58 2.8 4.71 117 26 Oph 17:00:09.6 -24:59:22 5.8 1.61 122 PPM 266070 16:52:16.1 -25:36:02 7.2 0.33 120 PPM 266095 16:53:37.5 -25:43:09 9.4 0.05 121 470308 16:53:41.3 -25:40:22 15.1 121 Positions are for J2000
Event circumstances last updated at 2022/03/15 01:00:31 UT
Marc W. Buie, Southwest Research Institute