Event between (535025) 14WT509 and star GA1000:00513943 with event index number of 2338032
Geocentric closest approach at 2022/02/07 08:07:38 UTC
J2000 position of star is 04:44:37.0 +10:31:41
Equinox of date position of star is 04:45:49.4 +10:34:02
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 37 degrees from the moon.
Moon is 38% illuminated.
TNO apparent brightness V=22.9
[RECON map]
TNO is 36.1 AU from the Sun
and 35.8 AU from the Earth.
The TNO is moving 8.3
km/sec on the sky relative to the star, or,
1.2 arcsec/hr.
The 1-sigma error in the time of the event is 232 seconds.
The 1-sigma cross-track error in the shadow position is
2492 km.
The sky-plane scale is
25929.8 km/arcsec.
The TNO has an absolute magnitude Hv=7.2
Diameter=218.8 km assuming a 5% albedo -- 26.3 sec chord
Diameter=89.3 km assuming a 30% albedo -- 10.7 sec chord
Dynamical classification is 2:1E
Star training set for 535025, (2022/02/07 07:59UT) Object RA Dec mag sep mel Aldebaran 04:37:11.5 +16:33:07 0.8 6.34 35 Bellatrix 05:26:19.1 +06:22:04 1.6 10.85 48 PPM 120192 04:45:39.5 +11:11:08 5.7 0.62 37 PPM 120250 04:48:19.6 +10:05:23 7.2 0.78 38 PPM 120205 04:46:30.5 +10:45:00 10.0 0.25 38 PPM 120203 04:46:25.7 +10:34:43 11.8 0.15 38 535025 04:45:50.2 +10:34:03 16.6 38 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
3.9 sigma about the mid-time.
The median site spacing is 8.9 km
RECON observability=0.9 and success probability=6.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 08:06:01 | -52.0 | Dark | Down | 13.3 | 270.1 | Really Low | 07:51:01 - 08:21:01 | -847 |
| Dunrhomin | 08:03:27 | -62.9 | Dark | Down | 12.9 | 273.0 | Really Low | 07:48:27 - 08:18:27 | -1144 |
| Kelowna | 08:05:48 | -55.4 | Dark | Down | 22.0 | 260.0 | Low | 07:50:48 - 08:20:48 | -1165 |
| Kamloops | 08:05:59 | -54.6 | Dark | Down | 22.4 | 259.0 | Low | 07:50:59 - 08:20:59 | -1166 |
| Peachland | 08:05:46 | -55.5 | Dark | Down | 22.2 | 259.8 | Low | 07:50:46 - 08:20:46 | -1175 |
| Penticton | 08:05:44 | -55.7 | Dark | Down | 22.1 | 260.1 | Low | 07:50:44 - 08:20:44 | -1176 |
| Summerland | 08:05:45 | -55.6 | Dark | Down | 22.2 | 260.0 | Low | 07:50:45 - 08:20:45 | -1176 |
| Anarchist Mountain Observatory | 08:05:37 | -56.2 | Dark | Down | 22.1 | 260.4 | Low | 07:50:37 - 08:20:37 | -1184 |
| Oliver | 08:05:39 | -56.1 | Dark | Down | 22.2 | 260.2 | Low | 07:50:39 - 08:20:39 | -1185 |
| Tonasket | 08:05:32 | -56.6 | Dark | Down | 22.2 | 260.5 | Low | 07:50:32 - 08:20:32 | -1195 |
| Okanogan | 08:05:28 | -56.9 | Dark | Down | 22.4 | 260.5 | Low | 07:50:28 - 08:20:28 | -1208 |
| Brewster | 08:05:25 | -57.1 | Dark | Down | 22.6 | 260.4 | Low | 07:50:25 - 08:20:25 | -1221 |
| Manson/Chelan | 08:05:24 | -57.3 | Dark | Down | 22.8 | 260.2 | Low | 07:50:24 - 08:20:24 | -1237 |
| Wenatchee | 08:05:18 | -57.8 | Dark | Down | 23.1 | 260.2 | Low | 07:50:18 - 08:20:18 | -1255 |
| Pasco | 08:05:01 | -59.0 | Dark | Down | 22.5 | 261.6 | Low | 07:50:01 - 08:20:01 | -1260 |
| PNWRO | 08:04:58 | -59.3 | Dark | Down | 22.4 | 261.9 | Low | 07:49:58 - 08:19:58 | -1262 |
| Ellensburg | 08:05:16 | -58.2 | Dark | Down | 23.3 | 260.2 | Low | 07:50:16 - 08:20:16 | -1274 |
| Yakima | 08:05:08 | -58.6 | Dark | Down | 23.4 | 260.4 | Low | 07:50:08 - 08:20:08 | -1287 |
| Toppenish/White Swan | 08:05:05 | -58.8 | Dark | Down | 23.3 | 260.6 | Low | 07:50:05 - 08:20:05 | -1290 |
| Victoria | 08:05:39 | -56.4 | Dark | Up | 24.8 | 257.4 | Low | 07:50:39 - 08:20:39 | -1303 |
| Goldendale | 08:04:59 | -59.3 | Dark | Down | 23.7 | 260.5 | Low | 07:49:59 - 08:19:59 | -1319 |
| The Dalles | 08:04:57 | -59.5 | Dark | Down | 24.0 | 260.3 | Low | 07:49:57 - 08:19:57 | -1337 |
| Maupin | 08:04:53 | -60.0 | Dark | Down | 24.0 | 260.5 | Low | 07:49:53 - 08:19:53 | -1349 |
| Redmond | 08:04:43 | -60.9 | Dark | Down | 24.2 | 260.8 | Low | 07:49:43 - 08:19:43 | -1383 |
| Sisters | 08:04:44 | -60.8 | Dark | Down | 24.5 | 260.5 | Low | 07:49:44 - 08:19:44 | -1393 |
| Bend | 08:04:41 | -61.1 | Dark | Down | 24.4 | 260.8 | Low | 07:49:41 - 08:19:41 | -1395 |
| Oregon Observatory | 08:04:37 | -61.2 | Dark | Down | 24.5 | 260.8 | Low | 07:49:37 - 08:19:37 | -1405 |
| North Lake | 08:04:29 | -61.9 | Dark | Down | 24.3 | 261.5 | Low | 07:49:29 - 08:19:29 | -1414 |
| La Pine/Gilchrist | 08:04:36 | -61.4 | Dark | Down | 24.6 | 260.8 | Low | 07:49:36 - 08:19:36 | -1414 |
| Paisley | 08:04:20 | -62.5 | Dark | Down | 24.1 | 261.9 | Low | 07:49:20 - 08:19:20 | -1424 |
| Lakeview | 08:04:15 | -63.0 | Dark | Down | 24.0 | 262.3 | Low | 07:49:15 - 08:19:15 | -1439 |
| Cedarville | 08:04:06 | -63.6 | Dark | Down | 24.0 | 262.7 | Low | 07:49:06 - 08:19:06 | -1460 |
| Chiloquin | 08:04:21 | -62.5 | Dark | Down | 25.1 | 261.0 | Low | 07:49:21 - 08:19:21 | -1468 |
| Klamath Falls | 08:04:20 | -62.8 | Dark | Down | 25.1 | 261.2 | Low | 07:49:20 - 08:19:20 | -1479 |
| Fall River/Burney | 08:04:03 | -64.0 | Dark | Down | 25.0 | 262.0 | Low | 07:49:03 - 08:19:03 | -1517 |
| Susanville | 08:03:52 | -64.7 | Dark | Down | 24.6 | 262.8 | Low | 07:48:52 - 08:18:52 | -1521 |
| Tonopah | 08:03:16 | -67.2 | Dark | Down | 22.3 | 266.0 | Low | 07:48:16 - 08:18:16 | -1525 |
| Reno | 08:03:41 | -65.6 | Dark | Down | 24.1 | 263.7 | Low | 07:48:41 - 08:18:41 | -1534 |
| Gimple | 08:03:50 | -65.0 | Dark | Down | 24.8 | 262.8 | Low | 07:48:50 - 08:18:50 | -1540 |
| Yerington | 08:03:35 | -66.2 | Dark | Down | 23.6 | 264.4 | Low | 07:48:35 - 08:18:35 | -1540 |
| Portola | 08:03:46 | -65.3 | Dark | Down | 24.5 | 263.2 | Low | 07:48:46 - 08:18:46 | -1542 |
| Greenville | 08:03:50 | -64.9 | Dark | Down | 24.8 | 262.7 | Low | 07:48:50 - 08:18:50 | -1542 |
| Hawthorne | 08:03:28 | -66.7 | Dark | Down | 23.3 | 264.9 | Low | 07:48:28 - 08:18:28 | -1545 |
| Carson City | 08:03:36 | -66.0 | Dark | Down | 24.1 | 263.9 | Low | 07:48:36 - 08:18:36 | -1550 |
| Indian Springs | 08:02:55 | -68.7 | Dark | Down | 21.2 | 267.5 | Low | 07:47:55 - 08:17:55 | -1551 |
| Quincy | 08:03:48 | -65.1 | Dark | Down | 24.9 | 262.8 | Low | 07:48:48 - 08:18:48 | -1551 |
| Patrick | 08:02:38 | -69.7 | Dark | Down | 19.8 | 269.0 | Really Low | 07:47:38 - 08:17:38 | -1556 |
| Henderson | 08:02:47 | -69.1 | Dark | Down | 20.7 | 268.1 | Low | 07:47:47 - 08:17:47 | -1557 |
| Gardnerville | 08:03:35 | -66.2 | Dark | Down | 24.1 | 264.0 | Low | 07:48:35 - 08:18:35 | -1559 |
| Beatty | 08:03:01 | -68.4 | Dark | Down | 22.0 | 266.7 | Low | 07:48:01 - 08:18:01 | -1566 |
| Kingman/Dolan Springs | 08:02:35 | -69.9 | Dark | Down | 20.0 | 268.9 | Really Low | 07:47:35 - 08:17:35 | -1572 |
| Lee Vining | 08:03:21 | -67.3 | Dark | Down | 23.8 | 264.8 | Low | 07:48:21 - 08:18:21 | -1585 |
| George/Scottsdale | 08:02:15 | -71.0 | Dark | Down | 18.3 | 270.6 | Really Low | 07:47:15 - 08:17:15 | -1586 |
| Laughlin/Bullhead City | 08:02:35 | -70.0 | Dark | Down | 20.4 | 268.6 | Low | 07:47:35 - 08:17:35 | -1588 |
| Bishop | 08:03:13 | -67.9 | Dark | Down | 23.3 | 265.5 | Low | 07:48:13 - 08:18:13 | -1592 |
| Mohave Valley | 08:02:33 | -70.2 | Dark | Down | 20.4 | 268.7 | Low | 07:47:33 - 08:17:33 | -1602 |
| Lake Havasu City | 08:02:28 | -70.6 | Dark | Down | 20.3 | 269.0 | Low | 07:47:28 - 08:17:28 | -1615 |
| Parker | 08:02:23 | -71.0 | Dark | Down | 20.3 | 269.1 | Low | 07:47:23 - 08:17:23 | -1632 |
| Blythe | 08:02:18 | -71.5 | Dark | Down | 20.5 | 269.2 | Low | 07:47:18 - 08:17:18 | -1667 |
| Yuma | 08:02:09 | -72.4 | Dark | Down | 20.6 | 269.5 | Low | 07:47:09 - 08:17:09 | -1717 |
| Calipatria | 08:02:15 | -72.1 | Dark | Down | 21.3 | 268.8 | Low | 07:47:15 - 08:17:15 | -1720 |
| Idyllwild | 08:02:23 | -71.5 | Dark | Down | 22.3 | 267.9 | Low | 07:47:23 - 08:17:23 | -1722 |
| Wildwood | 08:02:34 | -71.1 | Dark | Down | 23.8 | 266.7 | Low | 07:47:34 - 08:17:34 | -1761 |
| CPSLO | 08:02:53 | -69.7 | Dark | Down | 25.3 | 265.0 | Low | 07:47:53 - 08:17:53 | -1764 |
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 535025, (2022/02/07 07:59UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 6.34 35 Bellatrix 05:25:07.8 +06:20:58 1.6 10.85 48 PPM 120192 04:44:26.0 +11:08:46 5.7 0.62 37 PPM 120250 04:47:06.7 +10:03:06 7.2 0.78 38 PPM 120205 04:45:17.2 +10:42:40 10.0 0.25 38 PPM 120203 04:45:12.5 +10:32:22 11.8 0.15 38 535025 04:44:37.0 +10:31:41 16.6 37 Positions are for J2000
Event circumstances last updated at 2021/11/15 00:46:36 UT
Marc W. Buie, Southwest Research Institute