Event between (612891) 04TT357 and star GA1080:01024413 with event index number of 2804304
Geocentric closest approach at 2023/02/15 06:53:34 UTC
J2000 position of star is 05:22:52.1 +18:11:38
Equinox of date position of star is 05:24:10.4 +18:12:49
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 171 degrees from the moon.
Moon is 33% illuminated.
TNO apparent brightness V=23.3
[RECON map]
TNO is 33.7 AU from the Sun
and 33.3 AU from the Earth.
The TNO is moving 7.4
km/sec on the sky relative to the star, or,
1.1 arcsec/hr.
The 1-sigma error in the time of the event is 510 seconds.
The 1-sigma cross-track error in the shadow position is
2875 km.
The sky-plane scale is
24160.6 km/arcsec.
The TNO has an absolute magnitude Hv=7.9
Diameter=157.8 km assuming a 5% albedo -- 21.3 sec chord
Diameter=64.4 km assuming a 30% albedo -- 8.7 sec chord
Dynamical classification is 5:2EEE
Star training set for 612891, (2023/02/15 06:54UT) Object RA Dec mag sep mel Aldebaran 04:37:15.0 +16:33:14 0.8 11.33 169 Alnath 05:27:45.3 +28:37:29 1.6 10.44 174 111 Tau 05:25:46.5 +17:24:11 5.5 0.89 170 PPM 120901 05:24:52.0 +18:37:15 8.4 0.43 171 PPM 120880 05:23:38.6 +18:13:59 9.7 0.14 171 612891 05:24:13.2 +18:12:51 16.5 171 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
1.8 sigma about the mid-time.
The median site spacing is 22.5 km
RECON observability=1.0 and success probability=12.9%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 06:47:26 | -50.2 | Dark | Down | 32.4 | 257.7 | Up | 06:32:26 - 07:02:26 | -2362 |
| Kamloops | 06:48:27 | -48.1 | Dark | Down | 41.2 | 245.5 | Up | 06:33:27 - 07:03:27 | -2794 |
| Kelowna | 06:48:13 | -49.1 | Dark | Down | 41.1 | 247.0 | Up | 06:33:13 - 07:03:13 | -2836 |
| Peachland | 06:48:13 | -49.1 | Dark | Down | 41.3 | 246.8 | Up | 06:33:13 - 07:03:13 | -2851 |
| Summerland | 06:48:12 | -49.3 | Dark | Down | 41.3 | 247.0 | Up | 06:33:12 - 07:03:12 | -2861 |
| Penticton | 06:48:11 | -49.4 | Dark | Down | 41.3 | 247.1 | Up | 06:33:11 - 07:03:11 | -2863 |
| Oliver | 06:48:07 | -49.6 | Dark | Down | 41.4 | 247.4 | Up | 06:33:07 - 07:03:07 | -2891 |
| Anarchist Mountain Observatory | 06:48:04 | -49.9 | Dark | Down | 41.4 | 247.7 | Up | 06:33:04 - 07:03:04 | -2899 |
| Tonasket | 06:48:02 | -50.1 | Dark | Down | 41.5 | 247.9 | Up | 06:33:02 - 07:03:02 | -2926 |
| Okanogan | 06:48:00 | -50.3 | Dark | Down | 41.8 | 248.0 | Up | 06:33:00 - 07:03:00 | -2956 |
| Brewster | 06:47:58 | -50.5 | Dark | Down | 42.0 | 248.0 | Up | 06:32:58 - 07:02:58 | -2982 |
| Manson/Chelan | 06:47:59 | -50.5 | Dark | Down | 42.3 | 247.9 | Up | 06:32:59 - 07:02:59 | -3007 |
| Victoria | 06:48:26 | -48.7 | Dark | Down | 44.0 | 244.2 | Up | 06:33:26 - 07:03:26 | -3032 |
| Wenatchee | 06:47:56 | -50.8 | Dark | Down | 42.6 | 248.1 | Up | 06:32:56 - 07:02:56 | -3049 |
| Ellensburg | 06:47:53 | -51.1 | Dark | Down | 42.9 | 248.2 | Up | 06:32:53 - 07:02:53 | -3088 |
| Yakima | 06:47:49 | -51.4 | Dark | Down | 43.1 | 248.5 | Up | 06:32:49 - 07:02:49 | -3122 |
| PNWRO | 06:47:33 | -52.5 | Dark | Down | 42.2 | 250.5 | Up | 06:32:33 - 07:02:33 | -3129 |
| Toppenish/White Swan | 06:47:47 | -51.6 | Dark | Down | 43.0 | 248.9 | Up | 06:32:47 - 07:02:47 | -3135 |
| Goldendale | 06:47:44 | -51.9 | Dark | Down | 43.5 | 248.9 | Up | 06:32:44 - 07:02:44 | -3191 |
| The Dalles | 06:47:45 | -51.9 | Dark | Down | 43.8 | 248.8 | Up | 06:32:45 - 07:02:45 | -3219 |
| Dunrhomin | 06:45:18 | -61.7 | Dark | Down | 34.0 | 265.6 | Up | 06:30:18 - 07:00:18 | -3233 |
| Maupin | 06:47:40 | -52.3 | Dark | Down | 43.9 | 249.2 | Up | 06:32:40 - 07:02:40 | -3251 |
| CU-SBO | 06:45:16 | -62.0 | Dark | Down | 34.1 | 265.6 | Up | 06:30:16 - 07:00:16 | -3257 |
| Sisters | 06:47:36 | -52.7 | Dark | Down | 44.6 | 249.6 | Up | 06:32:36 - 07:02:36 | -3337 |
| Bend | 06:47:33 | -53.0 | Dark | Down | 44.5 | 250.0 | Up | 06:32:33 - 07:02:33 | -3351 |
| Oregon Observatory | 06:47:32 | -53.1 | Dark | Down | 44.6 | 250.1 | Up | 06:32:32 - 07:02:32 | -3369 |
| North Lake | 06:47:22 | -53.8 | Dark | Down | 44.5 | 251.1 | Up | 06:32:22 - 07:02:22 | -3409 |
| Lakeview | 06:47:09 | -54.9 | Dark | Down | 44.5 | 252.6 | Up | 06:32:09 - 07:02:09 | -3486 |
| Chiloquin | 06:47:25 | -53.9 | Dark | Down | 45.4 | 250.9 | Up | 06:32:25 - 07:02:25 | -3492 |
| Klamath Falls | 06:47:22 | -54.2 | Dark | Down | 45.5 | 251.3 | Up | 06:32:22 - 07:02:22 | -3520 |
| Cedarville | 06:47:04 | -55.5 | Dark | Down | 44.6 | 253.3 | Up | 06:32:04 - 07:02:04 | -3539 |
| Fall River/Burney | 06:47:09 | -55.2 | Dark | Down | 45.6 | 252.7 | Up | 06:32:09 - 07:02:09 | -3614 |
| Susanville | 06:46:57 | -56.0 | Dark | Down | 45.3 | 253.9 | Up | 06:31:57 - 07:01:57 | -3649 |
| Gimple | 06:46:57 | -56.1 | Dark | Down | 45.5 | 254.0 | Up | 06:31:57 - 07:01:57 | -3680 |
| Greenville | 06:46:57 | -56.1 | Dark | Down | 45.6 | 253.9 | Up | 06:31:57 - 07:01:57 | -3682 |
| Portola | 06:46:52 | -56.6 | Dark | Down | 45.3 | 254.7 | Up | 06:31:52 - 07:01:52 | -3698 |
| Quincy | 06:46:57 | -56.2 | Dark | Down | 45.6 | 254.1 | Up | 06:31:57 - 07:01:57 | -3700 |
| Reno | 06:46:45 | -57.1 | Dark | Down | 44.9 | 255.4 | Up | 06:31:45 - 07:01:45 | -3704 |
| Carson City | 06:46:40 | -57.4 | Dark | Down | 45.0 | 255.8 | Up | 06:31:40 - 07:01:40 | -3735 |
| Yerington | 06:46:33 | -57.8 | Dark | Down | 44.6 | 256.5 | Up | 06:31:33 - 07:01:33 | -3736 |
| Gardnerville | 06:46:38 | -57.6 | Dark | Down | 45.0 | 256.1 | Up | 06:31:38 - 07:01:38 | -3756 |
| Hawthorne | 06:46:27 | -58.4 | Dark | Down | 44.3 | 257.3 | Up | 06:31:27 - 07:01:27 | -3762 |
| Tonopah | 06:46:12 | -59.5 | Dark | Down | 43.4 | 258.8 | Up | 06:31:12 - 07:01:12 | -3765 |
| Lee Vining | 06:46:26 | -58.6 | Dark | Down | 44.8 | 257.5 | Up | 06:31:26 - 07:01:26 | -3827 |
| Indian Springs | 06:45:49 | -61.3 | Dark | Down | 42.5 | 261.2 | Up | 06:30:49 - 07:00:49 | -3855 |
| Beatty | 06:46:00 | -60.6 | Dark | Down | 43.3 | 260.2 | Up | 06:31:00 - 07:01:00 | -3856 |
| Bishop | 06:46:15 | -59.4 | Dark | Down | 44.4 | 258.6 | Up | 06:31:15 - 07:01:15 | -3861 |
| Henderson | 06:45:40 | -62.1 | Dark | Down | 42.1 | 262.2 | Up | 06:30:40 - 07:00:40 | -3883 |
| Patrick | 06:45:27 | -63.1 | Dark | Down | 41.3 | 263.4 | Up | 06:30:27 - 07:00:27 | -3907 |
| Kingman/Dolan Springs | 06:45:26 | -63.2 | Dark | Down | 41.5 | 263.5 | Up | 06:30:26 - 07:00:26 | -3933 |
| Laughlin/Bullhead City | 06:45:30 | -63.0 | Dark | Down | 41.9 | 263.2 | Up | 06:30:30 - 07:00:30 | -3951 |
| Mohave Valley | 06:45:28 | -63.2 | Dark | Down | 41.9 | 263.4 | Up | 06:30:28 - 07:00:28 | -3976 |
| George/Scottsdale | 06:45:00 | -65.4 | Dark | Down | 39.9 | 266.1 | Up | 06:30:00 - 07:00:00 | -4002 |
| Lake Havasu City | 06:45:23 | -63.6 | Dark | Down | 41.8 | 263.9 | Up | 06:30:23 - 07:00:23 | -4005 |
| Parker | 06:45:21 | -63.9 | Dark | Down | 41.8 | 264.3 | Up | 06:30:21 - 07:00:21 | -4036 |
| Idyllwild | 06:45:35 | -62.9 | Dark | Down | 43.8 | 263.1 | Up | 06:30:35 - 07:00:35 | -4146 |
| Calipatria | 06:45:21 | -64.0 | Dark | Down | 42.9 | 264.4 | Up | 06:30:21 - 07:00:21 | -4168 |
| Wildwood | 06:45:53 | -61.6 | Dark | Down | 45.2 | 261.6 | Up | 06:30:53 - 07:00:53 | -4168 |
| Yuma | 06:45:11 | -64.8 | Dark | Down | 42.2 | 265.3 | Up | 06:30:11 - 07:00:11 | -4181 |
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 612891, (2023/02/15 06:54UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 11.33 169 Alnath 05:26:17.6 +28:36:23 1.6 10.44 174 111 Tau 05:24:25.8 +17:23:00 5.5 0.89 170 PPM 120901 05:23:30.6 +18:36:03 8.4 0.43 171 PPM 120880 05:22:17.5 +18:12:44 9.7 0.14 171 612891 05:22:52.1 +18:11:38 16.5 171 Positions are for J2000
Event circumstances last updated at 2022/05/03 01:01:17 UT
Marc W. Buie, Southwest Research Institute