Event between (590218) 11UD63 and star GA1180:01616090 with event index number of 2685740
Geocentric closest approach at 2027/02/01 07:54:01 UTC
J2000 position of star is 05:36:01.0 +29:14:11
Equinox of date position of star is 05:37:32.4 +29:15:00
Stellar brightness G=15.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 170 degrees from the moon.
Moon is 24% illuminated.
Apparent brightness V=20.4
[RECON map]
Object is 14.1 AU from the Sun
and 13.4 AU from the Earth.
Apparent velocity is 13.4
km/sec on the sky relative to the star, or,
4.9 arcsec/hr.
The 1-sigma error in the time of the event is 121 seconds.
The 1-sigma cross-track error in the shadow position is
857 km.
The sky-plane scale is
9740.0 km/arcsec.
The object has an absolute magnitude Hv=8.7
Diameter=105.2 km assuming a 5% albedo -- 8.1 sec chord
Diameter=42.9 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is CENTAURR
Star training set for 590218, (2027/02/01 07:53UT) Object RA Dec mag sep mel Aldebaran 04:37:28.7 +16:33:42 0.8 18.77 169 Alnath 05:28:00.4 +28:37:40 1.6 2.22 172 PPM 094619 05:41:01.7 +29:13:41 5.9 0.72 169 PPM 094457 05:33:57.5 +29:12:46 8.4 0.83 170 PPM 094565 05:38:41.7 +29:19:41 9.6 0.22 169 PPM 094521 05:37:01.1 +29:17:12 11.0 0.16 170 590218 05:37:44.4 +29:15:06 15.7 169 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 34.6 km
RECON observability=1.0 and success probability=0.3%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 07:48:46 | -54.5 | Dark | Down | 41.7 | 265.5 | Up | 07:38:10 - 07:59:23 | 4898 |
| Kamloops | 07:49:36 | -56.1 | Dark | Down | 50.7 | 254.1 | Up | 07:39:00 - 08:00:13 | 4579 |
| Kelowna | 07:49:30 | -57.0 | Dark | Down | 50.3 | 255.9 | Up | 07:38:54 - 08:00:07 | 4500 |
| Peachland | 07:49:32 | -57.1 | Dark | Down | 50.5 | 255.8 | Up | 07:38:55 - 08:00:08 | 4486 |
| Summerland | 07:49:31 | -57.2 | Dark | Down | 50.5 | 256.0 | Up | 07:38:54 - 08:00:07 | 4471 |
| Penticton | 07:49:30 | -57.3 | Dark | Down | 50.5 | 256.2 | Up | 07:38:54 - 08:00:07 | 4465 |
| Oliver | 07:49:29 | -57.6 | Dark | Down | 50.6 | 256.6 | Up | 07:38:53 - 08:00:06 | 4428 |
| Anarchist Mountain Observatory | 07:49:28 | -57.8 | Dark | Down | 50.5 | 257.0 | Up | 07:38:52 - 08:00:05 | 4411 |
| Okanogan | 07:49:28 | -58.4 | Dark | Down | 50.8 | 257.6 | Up | 07:38:51 - 08:00:04 | 4341 |
| Victoria | 07:49:47 | -57.7 | Dark | Down | 53.1 | 253.8 | Up | 07:39:10 - 08:00:23 | 4330 |
| Brewster | 07:49:28 | -58.7 | Dark | Down | 50.9 | 257.7 | Up | 07:38:52 - 08:00:05 | 4310 |
| Manson/Chelan | 07:49:29 | -58.8 | Dark | Down | 51.2 | 257.6 | Up | 07:38:53 - 08:00:06 | 4285 |
| Wenatchee | 07:49:29 | -59.3 | Dark | Down | 51.4 | 258.1 | Up | 07:38:53 - 08:00:06 | 4232 |
| Ellensburg | 07:49:29 | -59.7 | Dark | Down | 51.7 | 258.4 | Up | 07:38:53 - 08:00:06 | 4186 |
| Yakima | 07:49:29 | -60.0 | Dark | Down | 51.8 | 258.9 | Up | 07:38:52 - 08:00:05 | 4143 |
| Toppenish/White Swan | 07:49:28 | -60.3 | Dark | Down | 51.7 | 259.3 | Up | 07:38:51 - 08:00:04 | 4121 |
| PNWRO | 07:49:20 | -60.8 | Dark | Down | 50.8 | 261.0 | Up | 07:38:43 - 07:59:56 | 4094 |
| The Dalles | 07:49:30 | -60.9 | Dark | Down | 52.4 | 259.6 | Up | 07:38:53 - 08:00:06 | 4030 |
| Maupin | 07:49:29 | -61.3 | Dark | Down | 52.4 | 260.2 | Up | 07:38:52 - 08:00:05 | 3986 |
| Sisters | 07:49:30 | -62.1 | Dark | Down | 52.9 | 260.9 | Up | 07:38:53 - 08:00:06 | 3887 |
| Bend | 07:49:28 | -62.4 | Dark | Down | 52.7 | 261.4 | Up | 07:38:51 - 08:00:04 | 3863 |
| Oregon Observatory | 07:49:29 | -62.5 | Dark | Down | 52.8 | 261.5 | Up | 07:38:52 - 08:00:05 | 3843 |
| Chiloquin | 07:49:28 | -63.7 | Dark | Down | 53.3 | 262.9 | Up | 07:38:52 - 08:00:05 | 3696 |
| Dunrhomin | 07:48:10 | -65.7 | Dark | Down | 41.1 | 276.4 | Up | 07:37:33 - 07:58:46 | 3680 |
| Nikitin | 07:48:08 | -65.9 | Dark | Down | 41.1 | 276.5 | Up | 07:37:32 - 07:58:45 | 3660 |
| Klamath Falls | 07:49:28 | -64.0 | Dark | Down | 53.3 | 263.5 | Up | 07:38:51 - 08:00:04 | 3660 |
| CU-SBO | 07:48:09 | -66.0 | Dark | Down | 41.1 | 276.5 | Up | 07:37:33 - 07:58:46 | 3651 |
| Cedarville | 07:49:18 | -65.0 | Dark | Down | 52.2 | 265.6 | Up | 07:38:42 - 07:59:55 | 3597 |
| Fall River/Burney | 07:49:25 | -65.2 | Dark | Down | 53.1 | 265.3 | Up | 07:38:48 - 08:00:01 | 3534 |
| Gimple | 07:49:20 | -66.2 | Dark | Down | 52.8 | 266.9 | Up | 07:38:44 - 07:59:57 | 3438 |
| Greenville | 07:49:21 | -66.2 | Dark | Down | 52.9 | 266.8 | Up | 07:38:44 - 07:59:57 | 3438 |
| Quincy | 07:49:21 | -66.4 | Dark | Down | 52.9 | 267.1 | Up | 07:38:45 - 07:59:58 | 3416 |
| Portola | 07:49:18 | -66.6 | Dark | Down | 52.5 | 267.6 | Up | 07:38:41 - 07:59:54 | 3406 |
| Reno | 07:49:15 | -67.0 | Dark | Down | 52.0 | 268.4 | Up | 07:38:38 - 07:59:51 | 3383 |
| Carson City | 07:49:13 | -67.4 | Dark | Down | 52.0 | 268.8 | Up | 07:38:37 - 07:59:50 | 3344 |
| Yerington | 07:49:11 | -67.7 | Dark | Down | 51.6 | 269.5 | Up | 07:38:34 - 07:59:47 | 3329 |
| Gardnerville | 07:49:13 | -67.6 | Dark | Down | 52.0 | 269.2 | Up | 07:38:37 - 07:59:50 | 3317 |
| Hawthorne | 07:49:08 | -68.2 | Dark | Down | 51.2 | 270.4 | Up | 07:38:31 - 07:59:44 | 3283 |
| Lee Vining | 07:49:08 | -68.7 | Dark | Down | 51.5 | 270.8 | Up | 07:38:32 - 07:59:45 | 3216 |
| Bishop | 07:49:04 | -69.4 | Dark | Down | 51.0 | 272.0 | Up | 07:38:28 - 07:59:41 | 3158 |
| Beatty | 07:48:55 | -70.1 | Dark | Down | 49.7 | 273.4 | Up | 07:38:19 - 07:59:32 | 3126 |
| Patrick | 07:48:39 | -71.7 | Dark | Down | 47.3 | 276.5 | Up | 07:38:03 - 07:59:16 | 3002 |
| Laughlin/Bullhead City | 07:48:43 | -72.0 | Dark | Down | 47.8 | 276.5 | Up | 07:38:06 - 07:59:19 | 2965 |
| Lake Havasu City | 07:48:40 | -72.6 | Dark | Down | 47.5 | 277.3 | Up | 07:38:04 - 07:59:17 | 2895 |
| George/Scottsdale | 07:48:28 | -73.3 | Dark | Down | 45.4 | 279.2 | Up | 07:37:51 - 07:59:04 | 2849 |
| Wildwood | 07:49:02 | -72.5 | Dark | Down | 50.9 | 275.9 | Up | 07:38:26 - 07:59:39 | 2796 |
| Idyllwild | 07:48:52 | -73.2 | Dark | Down | 49.3 | 277.1 | Up | 07:38:15 - 07:59:28 | 2779 |
| Calipatria | 07:48:45 | -73.9 | Dark | Down | 48.3 | 278.3 | Up | 07:38:09 - 07:59:22 | 2728 |
| Yuma | 07:48:41 | -74.4 | Dark | Down | 47.5 | 279.1 | Up | 07:38:04 - 07:59:17 | 2693 |
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 590218, (2027/02/01 07:53UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 18.77 169 Alnath 05:26:17.6 +28:36:23 1.6 2.22 172 PPM 094619 05:39:18.3 +29:12:54 5.9 0.72 169 PPM 094457 05:32:14.1 +29:11:43 8.4 0.83 170 PPM 094565 05:36:58.2 +29:18:49 9.6 0.22 169 PPM 094521 05:35:17.6 +29:16:16 11.0 0.16 170 590218 05:36:01.0 +29:14:11 15.7 170 Positions are for J2000
Event circumstances last updated at 2023/12/07 04:35:10 UT
Marc W. Buie, Southwest Research Institute