Event between (535989) 15BV518 and star GA1040:03328732 with event index number of 2257919
Geocentric closest approach at 2022/12/30 06:07:30 UTC
J2000 position of star is 09:47:42.8 +14:40:25
Equinox of date position of star is 09:48:57.1 +14:34:03
Stellar brightness G=14.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 133 degrees from the moon.
Moon is 52% illuminated.
TNO apparent brightness V=22.5
[RECON map]
TNO is 45.6 AU from the Sun
and 44.9 AU from the Earth.
The TNO is moving 16.7
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 238 seconds.
The 1-sigma cross-track error in the shadow position is
2219 km.
The sky-plane scale is
32575.6 km/arcsec.
The TNO has an absolute magnitude Hv=5.8
Diameter=424.6 km assuming a 5% albedo -- 25.4 sec chord
Diameter=173.4 km assuming a 30% albedo -- 10.4 sec chord
Dynamical classification is CLASSICAL
Star training set for 535989, (2022/12/30 06:08UT) Object RA Dec mag sep mel Regulus 10:09:35.7 +11:51:14 1.3 5.71 139 16Psi Leo 09:44:58.9 +13:54:56 5.3 1.16 132 PPM 126823 09:50:21.5 +14:29:52 7.9 0.34 134 PPM 126801 09:49:02.0 +14:42:11 10.7 0.14 133 535989 09:48:57.9 +14:33:59 14.8 134 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
3.8 sigma about the mid-time.
The median site spacing is 32.5 km
RECON observability=0.9 and success probability=5.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 06:12:17 | -59.3 | Dark | Up | 29.2 | 104.1 | Low | 05:57:17 - 06:27:17 | 6511 |
| Kamloops | 06:12:49 | -55.1 | Dark | Up | 20.5 | 91.7 | Low | 05:57:49 - 06:27:49 | 6454 |
| Kelowna | 06:12:50 | -56.1 | Dark | Up | 21.1 | 92.1 | Low | 05:57:50 - 06:27:50 | 6365 |
| Peachland | 06:12:49 | -56.0 | Dark | Up | 20.9 | 91.8 | Low | 05:57:49 - 06:27:49 | 6356 |
| Summerland | 06:12:49 | -56.1 | Dark | Up | 21.0 | 91.8 | Low | 05:57:49 - 06:27:49 | 6341 |
| Penticton | 06:12:49 | -56.2 | Dark | Up | 21.1 | 91.9 | Low | 05:57:49 - 06:27:49 | 6333 |
| Oliver | 06:12:52 | -56.5 | Dark | Up | 21.1 | 91.8 | Low | 05:57:52 - 06:27:52 | 6297 |
| Anarchist Mountain Observatory | 06:12:52 | -56.7 | Dark | Up | 21.2 | 91.9 | Low | 05:57:52 - 06:27:52 | 6279 |
| Victoria | 06:12:56 | -54.9 | Dark | Up | 18.6 | 88.6 | Really Low | 05:57:56 - 06:27:56 | 6272 |
| Tonasket | 06:12:52 | -56.8 | Dark | Up | 21.2 | 91.7 | Low | 05:57:52 - 06:27:52 | 6248 |
| Okanogan | 06:12:54 | -57.0 | Dark | Up | 21.1 | 91.4 | Low | 05:57:54 - 06:27:54 | 6215 |
| Brewster | 06:12:56 | -57.1 | Dark | Up | 21.0 | 91.2 | Low | 05:57:56 - 06:27:56 | 6190 |
| Manson/Chelan | 06:12:54 | -57.0 | Dark | Up | 20.7 | 90.8 | Low | 05:57:54 - 06:27:54 | 6172 |
| Wenatchee | 06:12:58 | -57.2 | Dark | Up | 20.6 | 90.5 | Low | 05:57:58 - 06:27:58 | 6126 |
| Ellensburg | 06:12:58 | -57.3 | Dark | Up | 20.5 | 90.2 | Low | 05:57:58 - 06:27:58 | 6086 |
| Yakima | 06:12:59 | -57.6 | Dark | Up | 20.5 | 90.1 | Low | 05:57:59 - 06:27:59 | 6045 |
| Toppenish/White Swan | 06:13:00 | -57.8 | Dark | Up | 20.6 | 90.1 | Low | 05:58:00 - 06:28:00 | 6021 |
| Goldendale | 06:13:03 | -57.9 | Dark | Up | 20.3 | 89.6 | Low | 05:58:03 - 06:28:03 | 5969 |
| PNWRO | 06:12:59 | -58.9 | Dark | Up | 21.6 | 91.1 | Low | 05:57:59 - 06:27:59 | 5968 |
| The Dalles | 06:13:03 | -57.8 | Dark | Up | 20.0 | 89.3 | Low | 05:58:03 - 06:28:03 | 5949 |
| Maupin | 06:13:05 | -58.1 | Dark | Up | 20.1 | 89.2 | Low | 05:58:05 - 06:28:05 | 5905 |
| Sisters | 06:13:08 | -58.3 | Dark | Up | 19.8 | 88.5 | Really Low | 05:58:08 - 06:28:08 | 5820 |
| Bend | 06:13:08 | -58.6 | Dark | Up | 19.9 | 88.6 | Really Low | 05:58:08 - 06:28:08 | 5792 |
| Oregon Observatory | 06:13:08 | -58.6 | Dark | Up | 19.8 | 88.5 | Really Low | 05:58:08 - 06:28:08 | 5776 |
| North Lake | 06:13:07 | -59.3 | Dark | Up | 20.2 | 88.6 | Low | 05:58:07 - 06:28:07 | 5703 |
| Chiloquin | 06:13:10 | -59.0 | Dark | Up | 19.5 | 87.7 | Really Low | 05:58:10 - 06:28:10 | 5644 |
| Klamath Falls | 06:13:10 | -59.2 | Dark | Up | 19.5 | 87.7 | Really Low | 05:58:10 - 06:28:10 | 5607 |
| Lakeview | 06:13:10 | -60.2 | Dark | Up | 20.6 | 88.6 | Low | 05:58:10 - 06:28:10 | 5586 |
| Cedarville | 06:13:12 | -60.6 | Dark | Up | 20.7 | 88.5 | Low | 05:58:12 - 06:28:12 | 5515 |
| Fall River/Burney | 06:13:13 | -60.1 | Dark | Up | 19.8 | 87.5 | Really Low | 05:58:13 - 06:28:13 | 5478 |
| Susanville | 06:13:15 | -60.9 | Dark | Up | 20.3 | 87.7 | Low | 05:58:15 - 06:28:15 | 5403 |
| Greenville | 06:13:15 | -60.8 | Dark | Up | 20.1 | 87.5 | Low | 05:58:15 - 06:28:15 | 5377 |
| Gimple | 06:13:15 | -60.9 | Dark | Up | 20.2 | 87.5 | Low | 05:58:15 - 06:28:15 | 5376 |
| Quincy | 06:13:16 | -60.9 | Dark | Up | 20.1 | 87.4 | Low | 05:58:16 - 06:28:16 | 5355 |
| Portola | 06:13:15 | -61.3 | Dark | Up | 20.4 | 87.6 | Low | 05:58:15 - 06:28:15 | 5336 |
| Reno | 06:13:15 | -61.8 | Dark | Up | 20.9 | 87.9 | Low | 05:58:15 - 06:28:15 | 5301 |
| Dunrhomin | 06:12:40 | -69.9 | Dark | Up | 32.0 | 97.9 | Up | 05:57:40 - 06:27:40 | 5280 |
| Carson City | 06:13:15 | -62.0 | Dark | Up | 20.9 | 87.8 | Low | 05:58:15 - 06:28:15 | 5262 |
| CU-SBO | 06:12:40 | -70.0 | Dark | Up | 32.0 | 97.7 | Up | 05:57:40 - 06:27:40 | 5253 |
| Gardnerville | 06:13:14 | -62.2 | Dark | Up | 21.0 | 87.8 | Low | 05:58:14 - 06:28:14 | 5235 |
| Yerington | 06:13:14 | -62.5 | Dark | Up | 21.4 | 88.1 | Low | 05:58:14 - 06:28:14 | 5234 |
| Hawthorne | 06:13:15 | -63.1 | Dark | Up | 21.8 | 88.3 | Low | 05:58:15 - 06:28:15 | 5179 |
| Lee Vining | 06:13:16 | -63.0 | Dark | Up | 21.4 | 87.8 | Low | 05:58:16 - 06:28:16 | 5124 |
| Tonopah | 06:13:10 | -64.3 | Dark | Up | 22.9 | 88.9 | Low | 05:58:10 - 06:28:10 | 5114 |
| Bishop | 06:13:15 | -63.8 | Dark | Up | 22.0 | 88.0 | Low | 05:58:15 - 06:28:15 | 5051 |
| Beatty | 06:13:12 | -65.2 | Dark | Up | 23.3 | 88.7 | Low | 05:58:12 - 06:28:12 | 4985 |
| Indian Springs | 06:13:12 | -66.1 | Dark | Up | 24.1 | 89.2 | Low | 05:58:12 - 06:28:12 | 4939 |
| Henderson | 06:13:11 | -66.8 | Dark | Up | 24.7 | 89.4 | Low | 05:58:11 - 06:28:11 | 4875 |
| Patrick | 06:13:09 | -67.9 | Dark | Up | 25.6 | 89.7 | Low | 05:58:09 - 06:28:09 | 4798 |
| Laughlin/Bullhead City | 06:13:12 | -67.5 | Dark | Up | 25.0 | 89.2 | Low | 05:58:12 - 06:28:12 | 4777 |
| Kingman/Dolan Springs | 06:13:10 | -67.9 | Dark | Up | 25.4 | 89.5 | Low | 05:58:10 - 06:28:10 | 4775 |
| Mohave Valley | 06:13:11 | -67.7 | Dark | Up | 25.0 | 89.1 | Low | 05:58:11 - 06:28:11 | 4747 |
| Lake Havasu City | 06:13:11 | -68.0 | Dark | Up | 25.2 | 89.1 | Low | 05:58:11 - 06:28:11 | 4701 |
| Wildwood | 06:13:19 | -64.9 | Dark | Up | 21.7 | 86.5 | Low | 05:58:19 - 06:28:19 | 4700 |
| Parker | 06:13:11 | -68.2 | Dark | Up | 25.2 | 88.9 | Low | 05:58:11 - 06:28:11 | 4663 |
| Idyllwild | 06:13:17 | -66.5 | Dark | Up | 23.2 | 87.4 | Low | 05:58:17 - 06:28:17 | 4640 |
| George/Scottsdale | 06:13:06 | -70.2 | Dark | Up | 27.2 | 90.0 | Low | 05:58:06 - 06:28:06 | 4598 |
| Calipatria | 06:13:15 | -67.6 | Dark | Up | 24.2 | 87.8 | Low | 05:58:15 - 06:28:15 | 4562 |
| Yuma | 06:13:13 | -68.5 | Dark | Up | 24.9 | 88.1 | Low | 05:58:13 - 06:28:13 | 4507 |
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 535989, (2022/12/30 06:08UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 5.71 139 16Psi Leo 09:43:43.9 +14:01:18 5.3 1.16 132 PPM 126823 09:49:06.5 +14:36:20 7.9 0.34 134 PPM 126801 09:47:46.9 +14:48:38 10.7 0.14 133 535989 09:47:42.8 +14:40:25 14.8 133 Positions are for J2000
Event circumstances last updated at 2022/10/03 04:15:00 UT
Marc W. Buie, Southwest Research Institute