Event between 04TF282 and star GA1000:01071371 with event index number of 1763808
Geocentric closest approach at 2027/11/01 09:27:35 UTC
J2000 position of star is 05:50:54.2 +10:32:42
Equinox of date position of star is 05:52:07.6 +10:32:58
Stellar brightness G=15.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 158 degrees from the moon.
Moon is 9% illuminated.
TNO apparent brightness V=22.7
[RECON map]
TNO is 43.3 AU from the Sun
and 42.7 AU from the Earth.
The TNO is moving 16.4
km/sec on the sky relative to the star, or,
1.9 arcsec/hr.
The 1-sigma error in the time of the event is 667 seconds.
The 1-sigma cross-track error in the shadow position is
4509 km.
The sky-plane scale is
30941.0 km/arcsec.
The TNO has an absolute magnitude Hv=6.2
Diameter=346.7 km assuming a 5% albedo -- 21.2 sec chord
Diameter=141.6 km assuming a 30% albedo -- 8.7 sec chord
Dynamical classification is SCATNEAR
Star training set for 04TF282, (2027/11/01 09:28UT) Object RA Dec mag sep mel Betelgeuse 05:56:40.8 +07:24:35 0.4 3.31 155 Bellatrix 05:26:37.5 +06:22:21 1.6 7.63 158 PPM 149523 05:51:34.7 +09:52:38 6.4 0.71 158 PPM 121490 05:52:59.4 +10:15:28 8.4 0.32 158 PPM 121476 05:52:27.8 +10:36:57 9.2 0.07 158 04TF282 05:52:26.7 +10:33:02 15.3 158 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
1.3 sigma about the mid-time.
The median site spacing is 21.5 km
RECON observability=1.0 and success probability=8.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 09:27:21 | -48.3 | Dark | Down | 44.6 | 143.0 | Up | 09:12:21 - 09:42:21 | -2351 |
| Victoria | 09:27:41 | -51.1 | Dark | Down | 45.1 | 137.9 | Up | 09:12:41 - 09:42:41 | -2382 |
| Peachland | 09:27:23 | -48.7 | Dark | Down | 45.6 | 143.3 | Up | 09:12:23 - 09:42:23 | -2426 |
| Kelowna | 09:27:22 | -48.5 | Dark | Down | 45.6 | 143.7 | Up | 09:12:22 - 09:42:22 | -2429 |
| Summerland | 09:27:24 | -48.8 | Dark | Down | 45.8 | 143.3 | Up | 09:12:24 - 09:42:24 | -2438 |
| Penticton | 09:27:24 | -48.8 | Dark | Down | 45.9 | 143.4 | Up | 09:12:24 - 09:42:24 | -2446 |
| Oliver | 09:27:25 | -49.1 | Dark | Down | 46.1 | 143.2 | Up | 09:12:25 - 09:42:25 | -2468 |
| Anarchist Mountain Observatory | 09:27:25 | -49.1 | Dark | Down | 46.4 | 143.3 | Up | 09:12:25 - 09:42:25 | -2485 |
| Tonasket | 09:27:26 | -49.4 | Dark | Down | 46.6 | 143.1 | Up | 09:12:26 - 09:42:26 | -2502 |
| Okanogan | 09:27:28 | -49.7 | Dark | Down | 46.8 | 142.7 | Up | 09:12:28 - 09:42:28 | -2519 |
| Brewster | 09:27:30 | -50.0 | Dark | Down | 46.9 | 142.2 | Up | 09:12:30 - 09:42:30 | -2529 |
| Manson/Chelan | 09:27:32 | -50.3 | Dark | Down | 46.9 | 141.6 | Up | 09:12:32 - 09:42:32 | -2530 |
| Wenatchee | 09:27:34 | -50.7 | Dark | Down | 47.2 | 141.1 | Up | 09:12:34 - 09:42:34 | -2555 |
| Ellensburg | 09:27:38 | -51.1 | Dark | Down | 47.5 | 140.5 | Up | 09:12:38 - 09:42:38 | -2574 |
| Yakima | 09:27:39 | -51.4 | Dark | Down | 47.8 | 140.2 | Up | 09:12:39 - 09:42:39 | -2600 |
| Toppenish/White Swan | 09:27:39 | -51.5 | Dark | Down | 48.0 | 140.3 | Up | 09:12:39 - 09:42:39 | -2620 |
| Goldendale | 09:27:43 | -52.1 | Dark | Down | 48.3 | 139.4 | Up | 09:12:43 - 09:42:43 | -2642 |
| The Dalles | 09:27:46 | -52.4 | Dark | Down | 48.3 | 138.7 | Up | 09:12:46 - 09:42:46 | -2644 |
| Maupin | 09:27:46 | -52.7 | Dark | Down | 48.6 | 138.6 | Up | 09:12:46 - 09:42:46 | -2675 |
| PNWRO | 09:27:35 | -51.1 | Dark | Down | 49.0 | 142.0 | Up | 09:12:35 - 09:42:35 | -2696 |
| Sleaford | 09:26:26 | -40.8 | Dark | Down | 47.4 | 163.0 | Up | 09:11:26 - 09:41:26 | -2712 |
| Sisters | 09:27:52 | -53.6 | Dark | Down | 49.1 | 137.3 | Up | 09:12:52 - 09:42:52 | -2717 |
| Bend | 09:27:53 | -53.6 | Dark | Down | 49.4 | 137.4 | Up | 09:12:53 - 09:42:53 | -2742 |
| Oregon Observatory | 09:27:53 | -53.8 | Dark | Down | 49.4 | 137.1 | Up | 09:12:53 - 09:42:53 | -2749 |
| North Lake | 09:27:54 | -54.0 | Dark | Down | 50.2 | 137.3 | Up | 09:12:54 - 09:42:54 | -2813 |
| Chiloquin | 09:28:01 | -55.0 | Dark | Down | 50.2 | 135.5 | Up | 09:13:01 - 09:43:01 | -2825 |
| Klamath Falls | 09:28:02 | -55.2 | Dark | Down | 50.5 | 135.4 | Up | 09:13:02 - 09:43:02 | -2852 |
| Lakeview | 09:27:57 | -54.4 | Dark | Down | 51.2 | 137.2 | Up | 09:12:57 - 09:42:57 | -2907 |
| Fall River/Burney | 09:28:05 | -55.8 | Dark | Down | 51.5 | 134.9 | Up | 09:13:05 - 09:43:05 | -2950 |
| Cedarville | 09:27:58 | -54.8 | Dark | Down | 51.8 | 136.9 | Up | 09:12:58 - 09:42:58 | -2961 |
| Susanville | 09:28:05 | -55.8 | Dark | Down | 52.4 | 135.3 | Up | 09:13:05 - 09:43:05 | -3024 |
| Greenville | 09:28:08 | -56.1 | Dark | Down | 52.4 | 134.7 | Up | 09:13:08 - 09:43:08 | -3033 |
| Gimple | 09:28:07 | -56.1 | Dark | Down | 52.5 | 134.8 | Up | 09:13:07 - 09:43:07 | -3036 |
| Quincy | 09:28:06 | -56.3 | Dark | Down | 52.5 | 134.5 | Up | 09:13:06 - 09:43:06 | -3048 |
| Portola | 09:28:07 | -56.1 | Dark | Down | 52.9 | 135.0 | Up | 09:13:07 - 09:43:07 | -3075 |
| Reno | 09:28:05 | -55.9 | Dark | Down | 53.4 | 135.6 | Up | 09:13:05 - 09:43:05 | -3120 |
| Carson City | 09:28:07 | -56.1 | Dark | Down | 53.7 | 135.3 | Up | 09:13:07 - 09:43:07 | -3147 |
| Gardnerville | 09:28:07 | -56.2 | Dark | Down | 53.9 | 135.2 | Up | 09:13:07 - 09:43:07 | -3168 |
| Yerington | 09:28:05 | -55.8 | Dark | Down | 54.2 | 136.0 | Up | 09:13:05 - 09:43:05 | -3187 |
| Hawthorne | 09:28:04 | -55.8 | Dark | Down | 54.8 | 136.3 | Up | 09:13:04 - 09:43:04 | -3243 |
| Lee Vining | 09:28:09 | -56.4 | Dark | Down | 55.0 | 135.1 | Up | 09:13:09 - 09:43:09 | -3266 |
| Tonopah | 09:28:01 | -55.2 | Dark | Down | 55.9 | 137.9 | Up | 09:13:01 - 09:43:01 | -3334 |
| Bishop | 09:28:08 | -56.3 | Dark | Down | 55.8 | 135.5 | Up | 09:13:08 - 09:43:08 | -3342 |
| Beatty | 09:28:02 | -55.5 | Dark | Down | 57.0 | 137.4 | Up | 09:13:02 - 09:43:02 | -3443 |
| Indian Springs | 09:28:00 | -55.0 | Dark | Down | 57.8 | 138.7 | Up | 09:13:00 - 09:43:00 | -3512 |
| Henderson | 09:27:57 | -54.8 | Dark | Down | 58.6 | 139.2 | Up | 09:12:57 - 09:42:57 | -3584 |
| Wildwood | 09:28:22 | -58.2 | Dark | Down | 57.9 | 131.7 | Up | 09:13:22 - 09:43:22 | -3593 |
| Dunrhomin | 09:27:00 | -46.2 | Dark | Down | 58.8 | 159.4 | Up | 09:12:00 - 09:42:00 | -3624 |
| Laughlin/Bullhead City | 09:27:59 | -54.9 | Dark | Down | 59.5 | 138.9 | Up | 09:12:59 - 09:42:59 | -3671 |
| Patrick | 09:27:55 | -54.3 | Dark | Down | 59.6 | 140.3 | Up | 09:12:55 - 09:42:55 | -3680 |
| Kingman/Dolan Springs | 09:27:57 | -54.5 | Dark | Down | 59.7 | 139.8 | Up | 09:12:57 - 09:42:57 | -3690 |
| Mohave Valley | 09:28:01 | -55.0 | Dark | Down | 59.7 | 138.6 | Up | 09:13:01 - 09:43:01 | -3694 |
| Idyllwild | 09:28:15 | -57.1 | Dark | Down | 59.3 | 134.0 | Up | 09:13:15 - 09:43:15 | -3700 |
| Lake Havasu City | 09:28:00 | -55.0 | Dark | Down | 60.1 | 138.6 | Up | 09:13:00 - 09:43:00 | -3737 |
| Parker | 09:28:02 | -55.2 | Dark | Down | 60.4 | 138.2 | Up | 09:13:02 - 09:43:02 | -3768 |
| Calipatria | 09:28:09 | -56.5 | Dark | Down | 60.4 | 135.0 | Up | 09:13:09 - 09:43:09 | -3801 |
| Yuma | 09:28:09 | -56.0 | Dark | Down | 61.3 | 136.0 | Up | 09:13:09 - 09:43:09 | -3875 |
| George/Scottsdale | 09:27:52 | -53.5 | Dark | Down | 62.0 | 141.8 | Up | 09:12:52 - 09:42:52 | -3904 |
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 04TF282, (2027/11/01 09:28UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 3.31 155 Bellatrix 05:25:07.8 +06:20:58 1.6 7.63 158 PPM 149523 05:50:02.7 +09:52:15 6.4 0.71 158 PPM 121490 05:51:27.0 +10:15:09 8.4 0.32 158 PPM 121476 05:50:55.2 +10:36:36 9.2 0.07 158 04TF282 05:50:54.2 +10:32:42 15.3 158 Positions are for J2000
Event circumstances last updated at 2022/01/30 00:25:20 UT
Marc W. Buie, Southwest Research Institute