Event between (420356) Praamzius and star GA1040:03301258 with event index number of 2376905
Geocentric closest approach at 2022/04/28 06:38:03 UTC
J2000 position of star is 09:30:00.8 +14:38:16
Equinox of date position of star is 09:31:13.8 +14:32:22
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 132 degrees from the moon.
Moon is 7% illuminated.
TNO apparent brightness V=22.3
[RECON map]
TNO is 43.0 AU from the Sun
and 42.8 AU from the Earth.
The TNO is moving 2.3
km/sec on the sky relative to the star, or,
0.3 arcsec/hr.
The 1-sigma error in the time of the event is 1233 seconds.
The 1-sigma cross-track error in the shadow position is
4449 km.
The sky-plane scale is
31040.1 km/arcsec.
The TNO has an absolute magnitude Hv=5.8
Diameter=426.6 km assuming a 5% albedo -- 182.9 sec chord
Diameter=174.2 km assuming a 30% albedo -- 74.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 420356, (2022/04/28 06:38UT) Object RA Dec mag sep mel Regulus 10:09:33.5 +11:51:26 1.3 9.70 142 PPM 126439 09:26:46.5 +16:29:17 6.3 2.23 131 PPM 126489 09:29:38.8 +15:04:02 8.4 0.65 132 PPM 126523 09:31:42.5 +14:49:04 9.0 0.30 132 PPM 126505 09:30:35.7 +14:24:39 10.8 0.20 132 420356 09:31:14.2 +14:32:21 16.6 132 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
0.7 sigma about the mid-time.
The median site spacing is 16.2 km
RECON observability=1.0 and success probability=10.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 06:23:29 | -23.3 | Dark | Down | 27.6 | 258.1 | Low | 06:08:29 - 06:38:29 | 795 |
| Kamloops | 06:25:51 | -22.0 | Dark | Down | 36.2 | 246.4 | Up | 06:10:51 - 06:40:51 | 364 |
| Kelowna | 06:25:09 | -23.0 | Dark | Down | 36.1 | 247.6 | Up | 06:10:09 - 06:40:09 | 336 |
| Peachland | 06:25:10 | -23.0 | Dark | Down | 36.4 | 247.4 | Up | 06:10:10 - 06:40:10 | 321 |
| Summerland | 06:25:03 | -23.1 | Dark | Down | 36.4 | 247.6 | Up | 06:10:03 - 06:40:03 | 314 |
| Penticton | 06:25:02 | -23.2 | Dark | Down | 36.3 | 247.7 | Up | 06:10:02 - 06:40:02 | 313 |
| Oliver | 06:24:46 | -23.5 | Dark | Down | 36.5 | 247.9 | Up | 06:09:46 - 06:39:46 | 290 |
| Anarchist Mountain Observatory | 06:24:38 | -23.7 | Dark | Down | 36.5 | 248.2 | Up | 06:09:38 - 06:39:38 | 285 |
| Tonasket | 06:24:29 | -24.0 | Dark | Down | 36.6 | 248.3 | Up | 06:09:29 - 06:39:29 | 263 |
| Okanogan | 06:24:21 | -24.2 | Dark | Down | 36.9 | 248.4 | Up | 06:09:21 - 06:39:21 | 237 |
| Brewster | 06:24:14 | -24.4 | Dark | Down | 37.1 | 248.3 | Up | 06:09:14 - 06:39:14 | 214 |
| Manson/Chelan | 06:24:14 | -24.5 | Dark | Down | 37.4 | 248.1 | Up | 06:09:14 - 06:39:14 | 191 |
| Wenatchee | 06:24:01 | -24.9 | Dark | Down | 37.8 | 248.3 | Up | 06:09:01 - 06:39:01 | 154 |
| Victoria | 06:25:33 | -23.1 | Dark | Down | 39.0 | 244.9 | Up | 06:10:33 - 06:40:33 | 146 |
| Ellensburg | 06:23:53 | -25.2 | Dark | Down | 38.1 | 248.3 | Up | 06:08:53 - 06:38:53 | 121 |
| PNWRO | 06:22:51 | -26.5 | Dark | Down | 37.5 | 250.3 | Up | 06:07:51 - 06:37:51 | 98 |
| Yakima | 06:23:39 | -25.5 | Dark | Down | 38.3 | 248.6 | Up | 06:08:39 - 06:38:39 | 93 |
| Dunrhomin | 06:16:02 | -34.7 | Dark | Down | 30.2 | 263.7 | Up | 06:01:02 - 06:31:02 | 86 |
| Toppenish/White Swan | 06:23:30 | -25.8 | Dark | Down | 38.3 | 248.8 | Up | 06:08:30 - 06:38:30 | 82 |
| CU-SBO | 06:15:55 | -34.9 | Dark | Down | 30.4 | 263.7 | Up | 06:00:55 - 06:30:55 | 66 |
| Goldendale | 06:23:19 | -26.1 | Dark | Down | 38.8 | 248.8 | Up | 06:08:19 - 06:38:19 | 33 |
| The Dalles | 06:23:19 | -26.2 | Dark | Down | 39.1 | 248.7 | Up | 06:08:19 - 06:38:19 | 7 |
| Maupin | 06:23:04 | -26.6 | Dark | Down | 39.2 | 249.0 | Up | 06:08:04 - 06:38:04 | -20 |
| Sisters | 06:22:45 | -27.2 | Dark | Down | 39.9 | 249.2 | Up | 06:07:45 - 06:37:45 | -96 |
| Bend | 06:22:33 | -27.5 | Dark | Down | 39.8 | 249.5 | Up | 06:07:33 - 06:37:33 | -106 |
| Oregon Observatory | 06:22:29 | -27.6 | Dark | Down | 40.0 | 249.5 | Up | 06:07:29 - 06:37:29 | -122 |
| North Lake | 06:22:00 | -28.3 | Dark | Down | 39.9 | 250.4 | Up | 06:07:00 - 06:37:00 | -153 |
| Lakeview | 06:21:17 | -29.3 | Dark | Down | 40.0 | 251.6 | Up | 06:06:17 - 06:36:17 | -215 |
| Chiloquin | 06:21:56 | -28.5 | Dark | Down | 40.8 | 250.1 | Up | 06:06:56 - 06:36:56 | -231 |
| Klamath Falls | 06:21:45 | -28.8 | Dark | Down | 40.9 | 250.4 | Up | 06:06:45 - 06:36:45 | -254 |
| Cedarville | 06:20:53 | -29.9 | Dark | Down | 40.2 | 252.2 | Up | 06:05:53 - 06:35:53 | -259 |
| Fall River/Burney | 06:21:03 | -30.0 | Dark | Down | 41.2 | 251.6 | Up | 06:06:03 - 06:36:03 | -332 |
| Susanville | 06:20:29 | -30.7 | Dark | Down | 40.9 | 252.6 | Up | 06:05:29 - 06:35:29 | -358 |
| Gimple | 06:20:25 | -30.9 | Dark | Down | 41.2 | 252.6 | Up | 06:05:25 - 06:35:25 | -386 |
| Greenville | 06:20:26 | -30.9 | Dark | Down | 41.2 | 252.6 | Up | 06:05:26 - 06:35:26 | -388 |
| Portola | 06:20:07 | -31.3 | Dark | Down | 41.0 | 253.2 | Up | 06:05:07 - 06:35:07 | -399 |
| Reno | 06:19:47 | -31.7 | Dark | Down | 40.7 | 253.9 | Up | 06:04:47 - 06:34:47 | -400 |
| Quincy | 06:20:22 | -31.0 | Dark | Down | 41.3 | 252.7 | Up | 06:05:22 - 06:35:22 | -404 |
| Yerington | 06:19:18 | -32.4 | Dark | Down | 40.4 | 254.8 | Up | 06:04:18 - 06:34:18 | -423 |
| Carson City | 06:19:32 | -32.0 | Dark | Down | 40.8 | 254.1 | Up | 06:04:32 - 06:34:32 | -428 |
| Tonopah | 06:18:12 | -33.8 | Dark | Down | 39.4 | 256.8 | Up | 06:03:12 - 06:33:12 | -437 |
| Hawthorne | 06:18:53 | -33.0 | Dark | Down | 40.2 | 255.5 | Up | 06:03:53 - 06:33:53 | -444 |
| Gardnerville | 06:19:26 | -32.3 | Dark | Down | 40.9 | 254.4 | Up | 06:04:26 - 06:34:26 | -445 |
| Lee Vining | 06:18:47 | -33.3 | Dark | Down | 40.8 | 255.5 | Up | 06:03:47 - 06:33:47 | -503 |
| Indian Springs | 06:16:58 | -35.6 | Dark | Down | 38.8 | 258.9 | Up | 06:01:58 - 06:31:58 | -507 |
| Beatty | 06:17:28 | -35.0 | Dark | Down | 39.4 | 258.0 | Up | 06:02:28 - 06:32:28 | -515 |
| Henderson | 06:16:30 | -36.3 | Dark | Down | 38.4 | 259.8 | Up | 06:01:30 - 06:31:30 | -528 |
| Bishop | 06:18:14 | -34.0 | Dark | Down | 40.5 | 256.5 | Up | 06:03:14 - 06:33:14 | -529 |
| Patrick | 06:15:49 | -37.2 | Dark | Down | 37.7 | 260.9 | Up | 06:00:49 - 06:30:49 | -543 |
| Kingman/Dolan Springs | 06:15:46 | -37.3 | Dark | Down | 37.9 | 260.9 | Up | 06:00:46 - 06:30:46 | -567 |
| Laughlin/Bullhead City | 06:15:55 | -37.2 | Dark | Down | 38.3 | 260.6 | Up | 06:00:55 - 06:30:55 | -586 |
| Mohave Valley | 06:15:47 | -37.4 | Dark | Down | 38.4 | 260.8 | Up | 06:00:47 - 06:30:47 | -608 |
| George/Scottsdale | 06:14:22 | -39.3 | Dark | Down | 36.6 | 263.2 | Up | 05:59:22 - 06:29:22 | -618 |
| Lake Havasu City | 06:15:32 | -37.8 | Dark | Down | 38.3 | 261.2 | Up | 06:00:32 - 06:30:32 | -633 |
| Parker | 06:15:22 | -38.1 | Dark | Down | 38.4 | 261.5 | Up | 06:00:22 - 06:30:22 | -661 |
| Idyllwild | 06:15:56 | -37.7 | Dark | Down | 40.3 | 260.3 | Up | 06:00:56 - 06:30:56 | -772 |
| Calipatria | 06:15:16 | -38.6 | Dark | Down | 39.6 | 261.5 | Up | 06:00:16 - 06:30:16 | -786 |
| Yuma | 06:14:45 | -39.3 | Dark | Down | 39.0 | 262.3 | Up | 05:59:45 - 06:29:45 | -793 |
| Wildwood | 06:16:46 | -36.7 | Dark | Down | 41.6 | 258.9 | Up | 06:01:46 - 06:31:46 | -804 |
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 420356, (2022/04/28 06:38UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 9.70 142 PPM 126439 09:25:32.4 +16:35:07 6.3 2.23 131 PPM 126489 09:28:25.2 +15:09:56 8.4 0.65 132 PPM 126523 09:30:29.1 +14:55:01 9.0 0.30 132 PPM 126505 09:29:22.4 +14:30:34 10.8 0.20 132 420356 09:30:00.8 +14:38:16 16.6 132 Positions are for J2000
Event circumstances last updated at 2022/03/15 01:01:06 UT
Marc W. Buie, Southwest Research Institute