Event between (15874) 96TL66 and star GA0940:00720010 with event index number of 1130582
Geocentric closest approach at 2022/02/04 07:25:49 UTC
J2000 position of star is 05:24:10.8 +05:40:44
Equinox of date position of star is 05:25:21.6 +05:41:52
Stellar brightness G=14.1,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 84 degrees from the moon.
Moon is 12% illuminated.
TNO apparent brightness V=21.5
[RECON map]
TNO is 38.7 AU from the Sun
and 38.1 AU from the Earth.
The TNO is moving 13.5
km/sec on the sky relative to the star, or,
1.8 arcsec/hr.
The 1-sigma error in the time of the event is 141 seconds.
The 1-sigma cross-track error in the shadow position is
1455 km.
The sky-plane scale is
27665.7 km/arcsec.
The TNO has an absolute magnitude Hv=5.5
Diameter=487.5 km assuming a 5% albedo -- 36.1 sec chord
Diameter=199.0 km assuming a 30% albedo -- 14.7 sec chord
Dynamical classification is SCATNEAR
Star training set for 15874, (2022/02/04 07:26UT) Object RA Dec mag sep mel Betelgeuse 05:56:22.1 +07:24:34 0.4 7.89 92 Bellatrix 05:26:19.0 +06:22:04 1.6 0.71 84 PPM 148872 05:24:41.7 +05:20:32 6.2 0.39 84 PPM 148873 05:24:45.4 +05:50:26 8.3 0.21 84 PPM 148896 05:25:39.8 +05:50:46 10.4 0.17 84 15874 05:25:21.6 +05:41:52 14.1 84 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 14.5 km
RECON observability=1.0 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 | 07:24:02 | -54.1 | Dark | Down | 23.4 | 247.6 | Low | 07:11:47 - 07:36:17 | 8541 |
| Kamloops | 07:24:33 | -54.1 | Dark | Down | 31.9 | 234.8 | Up | 07:12:18 - 07:36:48 | 8180 |
| Kelowna | 07:24:25 | -55.0 | Dark | Down | 31.9 | 236.1 | Up | 07:12:10 - 07:36:40 | 8159 |
| Peachland | 07:24:25 | -55.0 | Dark | Down | 32.2 | 235.8 | Up | 07:12:10 - 07:36:40 | 8147 |
| Summerland | 07:24:26 | -55.2 | Dark | Down | 32.2 | 236.0 | Up | 07:12:11 - 07:36:41 | 8141 |
| Penticton | 07:24:22 | -55.3 | Dark | Down | 32.2 | 236.1 | Up | 07:12:07 - 07:36:37 | 8140 |
| Oliver | 07:24:20 | -55.6 | Dark | Down | 32.4 | 236.3 | Up | 07:12:05 - 07:36:35 | 8122 |
| Anarchist Mountain Observatory | 07:24:19 | -55.8 | Dark | Down | 32.4 | 236.6 | Up | 07:12:04 - 07:36:34 | 8118 |
| Tonasket | 07:24:17 | -56.1 | Dark | Down | 32.6 | 236.7 | Up | 07:12:02 - 07:36:32 | 8100 |
| Okanogan | 07:24:15 | -56.4 | Dark | Down | 32.8 | 236.7 | Up | 07:12:00 - 07:36:30 | 8078 |
| Brewster | 07:24:14 | -56.6 | Dark | Down | 33.1 | 236.6 | Up | 07:11:59 - 07:36:29 | 8059 |
| Manson/Chelan | 07:24:13 | -56.7 | Dark | Down | 33.4 | 236.4 | Up | 07:11:58 - 07:36:28 | 8039 |
| Wenatchee | 07:24:14 | -57.1 | Dark | Down | 33.8 | 236.5 | Up | 07:11:59 - 07:36:29 | 8008 |
| Victoria | 07:24:32 | -55.2 | Dark | Down | 34.8 | 232.8 | Up | 07:12:17 - 07:36:47 | 7995 |
| Ellensburg | 07:24:10 | -57.4 | Dark | Down | 34.2 | 236.5 | Up | 07:11:55 - 07:36:25 | 7980 |
| PNWRO | 07:24:00 | -58.7 | Dark | Down | 33.8 | 238.6 | Up | 07:11:45 - 07:36:15 | 7964 |
| Yakima | 07:24:11 | -57.8 | Dark | Down | 34.4 | 236.7 | Up | 07:11:56 - 07:36:26 | 7957 |
| Dunrhomin | 07:22:40 | -65.9 | Dark | Down | 27.1 | 253.2 | Low | 07:10:25 - 07:34:55 | 7951 |
| Toppenish/White Swan | 07:24:06 | -58.0 | Dark | Down | 34.4 | 237.0 | Up | 07:11:51 - 07:36:21 | 7948 |
| Goldendale | 07:24:05 | -58.4 | Dark | Down | 35.0 | 236.9 | Up | 07:11:50 - 07:36:20 | 7906 |
| The Dalles | 07:24:06 | -58.5 | Dark | Down | 35.3 | 236.6 | Up | 07:11:51 - 07:36:21 | 7883 |
| Maupin | 07:24:01 | -58.9 | Dark | Down | 35.5 | 237.0 | Up | 07:11:46 - 07:36:16 | 7862 |
| Sisters | 07:23:58 | -59.5 | Dark | Down | 36.3 | 237.0 | Up | 07:11:43 - 07:36:13 | 7796 |
| Bend | 07:23:57 | -59.8 | Dark | Down | 36.2 | 237.4 | Up | 07:11:42 - 07:36:12 | 7789 |
| Oregon Observatory | 07:23:55 | -59.9 | Dark | Down | 36.4 | 237.4 | Up | 07:11:40 - 07:36:10 | 7775 |
| North Lake | 07:23:50 | -60.6 | Dark | Down | 36.4 | 238.3 | Up | 07:11:35 - 07:36:05 | 7749 |
| Lakeview | 07:23:42 | -61.8 | Dark | Down | 36.7 | 239.5 | Up | 07:11:27 - 07:35:57 | 7698 |
| Chiloquin | 07:23:49 | -60.9 | Dark | Down | 37.4 | 237.8 | Up | 07:11:34 - 07:36:04 | 7682 |
| Klamath Falls | 07:23:50 | -61.2 | Dark | Down | 37.5 | 238.1 | Up | 07:11:35 - 07:36:05 | 7662 |
| Cedarville | 07:23:37 | -62.4 | Dark | Down | 36.9 | 240.0 | Up | 07:11:22 - 07:35:52 | 7660 |
| Fall River/Burney | 07:23:38 | -62.4 | Dark | Down | 37.9 | 239.2 | Up | 07:11:23 - 07:35:53 | 7596 |
| Susanville | 07:23:34 | -63.2 | Dark | Down | 37.8 | 240.3 | Up | 07:11:19 - 07:35:49 | 7575 |
| Gimple | 07:23:33 | -63.4 | Dark | Down | 38.0 | 240.3 | Up | 07:11:18 - 07:35:48 | 7550 |
| Greenville | 07:23:32 | -63.3 | Dark | Down | 38.1 | 240.2 | Up | 07:11:17 - 07:35:47 | 7548 |
| Portola | 07:23:28 | -63.8 | Dark | Down | 38.0 | 240.9 | Up | 07:11:13 - 07:35:43 | 7539 |
| Reno | 07:23:24 | -64.3 | Dark | Down | 37.7 | 241.6 | Up | 07:11:09 - 07:35:39 | 7539 |
| Quincy | 07:23:31 | -63.5 | Dark | Down | 38.2 | 240.3 | Up | 07:11:16 - 07:35:46 | 7534 |
| Yerington | 07:23:20 | -65.0 | Dark | Down | 37.5 | 242.6 | Up | 07:11:05 - 07:35:35 | 7520 |
| Carson City | 07:23:22 | -64.6 | Dark | Down | 37.8 | 241.9 | Up | 07:11:07 - 07:35:37 | 7516 |
| Tonopah | 07:23:05 | -66.5 | Dark | Down | 36.6 | 244.9 | Up | 07:10:50 - 07:35:20 | 7510 |
| Hawthorne | 07:23:13 | -65.6 | Dark | Down | 37.3 | 243.4 | Up | 07:10:58 - 07:35:28 | 7503 |
| Gardnerville | 07:23:22 | -64.8 | Dark | Down | 37.9 | 242.1 | Up | 07:11:07 - 07:35:37 | 7500 |
| Lee Vining | 07:23:15 | -65.9 | Dark | Down | 37.9 | 243.3 | Up | 07:11:00 - 07:35:30 | 7451 |
| Indian Springs | 07:22:50 | -68.3 | Dark | Down | 36.1 | 247.1 | Up | 07:10:35 - 07:35:05 | 7449 |
| Beatty | 07:22:56 | -67.7 | Dark | Down | 36.7 | 246.0 | Up | 07:10:41 - 07:35:11 | 7442 |
| Henderson | 07:22:47 | -69.0 | Dark | Down | 35.8 | 248.0 | Up | 07:10:32 - 07:35:02 | 7430 |
| Bishop | 07:23:05 | -66.7 | Dark | Down | 37.7 | 244.3 | Up | 07:10:50 - 07:35:20 | 7429 |
| Patrick | 07:22:40 | -69.9 | Dark | Down | 35.2 | 249.3 | Up | 07:10:25 - 07:34:55 | 7416 |
| Kingman/Dolan Springs | 07:22:40 | -70.1 | Dark | Down | 35.4 | 249.3 | Up | 07:10:25 - 07:34:55 | 7396 |
| Laughlin/Bullhead City | 07:22:40 | -69.9 | Dark | Down | 35.8 | 248.9 | Up | 07:10:25 - 07:34:55 | 7379 |
| Mohave Valley | 07:22:40 | -70.2 | Dark | Down | 35.9 | 249.1 | Up | 07:10:25 - 07:34:55 | 7360 |
| George/Scottsdale | 07:22:40 | -72.0 | Dark | Down | 34.2 | 252.0 | Up | 07:10:25 - 07:34:55 | 7355 |
| Lake Havasu City | 07:22:40 | -70.6 | Dark | Down | 35.9 | 249.6 | Up | 07:10:25 - 07:34:55 | 7338 |
| Parker | 07:22:40 | -71.0 | Dark | Down | 36.0 | 249.9 | Up | 07:10:25 - 07:34:55 | 7314 |
| Idyllwild | 07:22:40 | -70.5 | Dark | Down | 38.0 | 248.2 | Up | 07:10:25 - 07:34:55 | 7216 |
| Calipatria | 07:22:40 | -71.5 | Dark | Down | 37.3 | 249.6 | Up | 07:10:25 - 07:34:55 | 7205 |
| Yuma | 07:22:40 | -72.2 | Dark | Down | 36.7 | 250.6 | Up | 07:10:25 - 07:34:55 | 7200 |
| Wildwood | 07:22:49 | -69.4 | Dark | Down | 39.3 | 246.5 | Up | 07:10:34 - 07:35:04 | 7188 |
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 15874, (2022/02/04 07:26UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 7.89 92 Bellatrix 05:25:07.8 +06:20:58 1.6 0.71 84 PPM 148872 05:23:31.0 +05:19:23 6.2 0.39 84 PPM 148873 05:23:34.5 +05:49:17 8.3 0.21 84 PPM 148896 05:24:28.9 +05:49:39 10.4 0.17 84 15874 05:24:10.8 +05:40:44 14.1 84 Positions are for J2000
Event circumstances last updated at 2022/02/02 01:08:47 UT
Marc W. Buie, Southwest Research Institute