Event between (517717) 15KZ120 and star GA1280:01136384 with event index number of 2628479
Geocentric closest approach at 2027/02/11 03:16:14 UTC
J2000 position of star is 03:54:47.5 +39:41:30
Equinox of date position of star is 03:56:19.6 +39:45:27
Stellar brightness G=16.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 53 degrees from the moon.
Moon is 19% illuminated.
TNO apparent brightness V=22.5
[RECON map]
TNO is 16.4 AU from the Sun
and 16.1 AU from the Earth.
The TNO is moving 17.7
km/sec on the sky relative to the star, or,
5.4 arcsec/hr.
The 1-sigma error in the time of the event is 319 seconds.
The 1-sigma cross-track error in the shadow position is
2487 km.
The sky-plane scale is
11695.8 km/arcsec.
The TNO has an absolute magnitude Hv=10.1
Diameter=57.5 km assuming a 5% albedo -- 3.2 sec chord
Diameter=23.5 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
Star training set for 517717, (2027/02/11 03:15UT) Object RA Dec mag sep mel Aldebaran 04:37:28.8 +16:33:42 0.8 24.85 58 44Zet Per 03:55:50.6 +31:57:43 2.8 7.81 50 PPM 068974 04:01:28.6 +38:53:44 6.4 1.28 53 PPM 046599 03:54:22.7 +40:26:41 7.9 0.80 53 PPM 068860 03:54:16.6 +39:55:46 9.9 0.48 53 517717 03:56:36.7 +39:46:10 16.1 53 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
2.8 sigma about the mid-time.
The median site spacing is 11.2 km
RECON observability=1.0 and success probability=18.4%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 03:15:16 | -18.3 | Dark | Up | 79.6 | 214.7 | Up | 03:00:16 - 03:30:16 | 453 |
| Kamloops | 03:15:00 | -20.3 | Dark | Up | 76.7 | 218.3 | Up | 03:00:00 - 03:30:00 | 304 |
| Peachland | 03:15:05 | -20.7 | Dark | Up | 77.2 | 222.7 | Up | 03:00:05 - 03:30:05 | 233 |
| Summerland | 03:15:06 | -20.8 | Dark | Up | 77.2 | 223.4 | Up | 03:00:06 - 03:30:06 | 222 |
| Kelowna | 03:15:04 | -20.9 | Dark | Up | 77.0 | 223.2 | Up | 03:00:04 - 03:30:04 | 217 |
| Penticton | 03:15:06 | -20.8 | Dark | Up | 77.2 | 223.9 | Up | 03:00:06 - 03:30:06 | 212 |
| The Dalles | 03:15:31 | -19.9 | Dark | Up | 80.6 | 234.6 | Up | 03:00:31 - 03:30:31 | 207 |
| Ellensburg | 03:15:23 | -20.3 | Dark | Up | 79.4 | 230.2 | Up | 03:00:23 - 03:30:23 | 202 |
| Manson/Chelan | 03:15:16 | -20.5 | Dark | Up | 78.6 | 227.8 | Up | 03:00:16 - 03:30:16 | 202 |
| Oliver | 03:15:08 | -20.9 | Dark | Up | 77.5 | 225.0 | Up | 03:00:08 - 03:30:08 | 201 |
| Wenatchee | 03:15:20 | -20.4 | Dark | Up | 79.0 | 229.2 | Up | 03:00:20 - 03:30:20 | 199 |
| Sisters | 03:15:40 | -19.6 | Dark | Up | 81.5 | 240.5 | Up | 03:00:40 - 03:30:40 | 198 |
| Yakima | 03:15:25 | -20.3 | Dark | Up | 79.7 | 231.9 | Up | 03:00:25 - 03:30:25 | 191 |
| Maupin | 03:15:34 | -20.0 | Dark | Up | 80.8 | 237.1 | Up | 03:00:34 - 03:30:34 | 187 |
| Brewster | 03:15:15 | -20.8 | Dark | Up | 78.3 | 228.1 | Up | 03:00:15 - 03:30:15 | 182 |
| Anarchist Mountain Observatory | 03:15:09 | -21.0 | Dark | Up | 77.5 | 226.1 | Up | 03:00:09 - 03:30:09 | 182 |
| Oregon Observatory | 03:15:42 | -19.7 | Dark | Up | 81.6 | 243.3 | Up | 03:00:42 - 03:30:42 | 177 |
| Okanogan | 03:15:13 | -20.9 | Dark | Up | 78.0 | 227.7 | Up | 03:00:13 - 03:30:13 | 177 |
| Toppenish/White Swan | 03:15:26 | -20.4 | Dark | Up | 79.7 | 233.4 | Up | 03:00:26 - 03:30:26 | 172 |
| Bend | 03:15:41 | -19.8 | Dark | Up | 81.5 | 242.7 | Up | 03:00:41 - 03:30:41 | 171 |
| Chiloquin | 03:15:50 | -19.4 | Dark | Up | 82.4 | 251.0 | Up | 03:00:50 - 03:30:50 | 171 |
| Klamath Falls | 03:15:52 | -19.5 | Dark | Up | 82.4 | 253.6 | Up | 03:00:52 - 03:30:52 | 155 |
| PNWRO | 03:15:26 | -21.5 | Dark | Up | 79.1 | 239.2 | Up | 03:00:26 - 03:30:26 | 50 |
| Cedarville | 03:15:55 | -20.7 | Dark | Up | 81.4 | 261.3 | Up | 03:00:55 - 03:30:55 | 7 |
| Fall River/Burney | 03:15:56 | -19.7 | Dark | Up | 82.4 | 263.0 | Up | 03:00:56 - 03:30:56 | -102 |
| Gimple | 03:15:56 | -20.1 | Dark | Up | 82.0 | 270.1 | Up | 03:00:56 - 03:30:56 | -135 |
| Greenville | 03:15:56 | -20.0 | Dark | Up | 82.1 | 270.1 | Up | 03:00:56 - 03:30:56 | -137 |
| Quincy | 03:15:56 | -20.0 | Dark | Up | 82.1 | 271.5 | Up | 03:00:56 - 03:30:56 | -158 |
| Portola | 03:15:56 | -20.4 | Dark | Up | 81.7 | 272.6 | Up | 03:00:56 - 03:30:56 | -160 |
| Reno | 03:15:56 | -20.9 | Dark | Up | 81.2 | 274.6 | Up | 03:00:56 - 03:30:56 | -191 |
| Carson City | 03:15:56 | -20.9 | Dark | Up | 81.1 | 276.9 | Up | 03:00:56 - 03:30:56 | -231 |
| Gardnerville | 03:15:56 | -20.9 | Dark | Up | 81.1 | 278.5 | Up | 03:00:56 - 03:30:56 | -258 |
| Yerington | 03:15:56 | -21.4 | Dark | Up | 80.6 | 278.1 | Up | 03:00:56 - 03:30:56 | -265 |
| Bishop | 03:16:17 | -22.0 | Dark | Up | 79.6 | 286.9 | Up | 03:01:17 - 03:31:17 | -267 |
| Hawthorne | 03:15:56 | -21.8 | Dark | Up | 80.1 | 280.7 | Up | 03:00:56 - 03:30:56 | -329 |
| Wildwood | 03:16:37 | -21.8 | Dark | Up | 78.3 | 302.4 | Up | 03:01:37 - 03:31:37 | -350 |
| Lee Vining | 03:15:56 | -21.4 | Dark | Up | 80.4 | 284.1 | Up | 03:00:56 - 03:30:56 | -375 |
| Beatty | 03:16:18 | -23.3 | Dark | Up | 78.2 | 288.2 | Up | 03:01:18 - 03:31:18 | -419 |
| Idyllwild | 03:16:36 | -23.4 | Dark | Up | 76.8 | 301.1 | Up | 03:01:36 - 03:31:36 | -526 |
| Sleaford | 03:14:34 | -28.9 | Dark | Up | 68.8 | 244.1 | Up | 02:59:34 - 03:29:34 | -556 |
| Calipatria | 03:16:38 | -24.3 | Dark | Up | 75.6 | 301.7 | Up | 03:01:38 - 03:31:38 | -647 |
| Laughlin/Bullhead City | 03:16:24 | -25.1 | Dark | Up | 75.9 | 293.7 | Up | 03:01:24 - 03:31:24 | -660 |
| Lake Havasu City | 03:16:28 | -25.3 | Dark | Up | 75.5 | 295.9 | Up | 03:01:28 - 03:31:28 | -704 |
| Patrick | 03:16:22 | -25.7 | Dark | Up | 75.5 | 292.4 | Up | 03:01:22 - 03:31:22 | -711 |
| Yuma | 03:16:39 | -25.1 | Dark | Up | 74.8 | 302.1 | Up | 03:01:39 - 03:31:39 | -739 |
| George/Scottsdale | 03:16:28 | -27.4 | Dark | Up | 73.3 | 296.6 | Up | 03:01:28 - 03:31:28 | -940 |
| Dunrhomin | 03:15:38 | -32.0 | Dark | Up | 70.1 | 276.9 | Up | 03:00:38 - 03:30:38 | -1190 |
| CU-SBO | 03:15:39 | -32.0 | Dark | Up | 70.2 | 277.5 | Up | 03:00:39 - 03:30:39 | -1194 |
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 517717, (2027/02/11 03:15UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 24.85 58 44Zet Per 03:54:07.9 +31:53:01 2.8 7.81 50 PPM 068974 03:59:39.9 +38:49:14 6.4 1.28 53 PPM 046599 03:52:33.0 +40:21:56 7.9 0.80 53 PPM 068860 03:52:27.5 +39:51:01 9.9 0.48 53 517717 03:54:47.5 +39:41:30 16.1 53 Positions are for J2000
Event circumstances last updated at 2022/11/18 02:46:59 UT
Marc W. Buie, Southwest Research Institute