Event between (601690) 13KZ18 and star GA1360:00490304 with event index number of 2733348
Geocentric closest approach at 2027/12/31 05:18:20 UTC
J2000 position of star is 01:10:04.3 +47:01:53
Equinox of date position of star is 01:11:21.9 +47:08:54
Stellar brightness G=14.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 81 degrees from the moon.
Moon is 10% illuminated.
TNO apparent brightness V=22.5
[RECON map]
TNO is 22.0 AU from the Sun
and 21.6 AU from the Earth.
The TNO is moving 16.7
km/sec on the sky relative to the star, or,
3.8 arcsec/hr.
The 1-sigma error in the time of the event is 185 seconds.
The 1-sigma cross-track error in the shadow position is
4428 km.
The sky-plane scale is
15664.2 km/arcsec.
The TNO has an absolute magnitude Hv=8.9
Diameter=100.5 km assuming a 5% albedo -- 6.0 sec chord
Diameter=41.0 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is CENTAURR
Star training set for 601690, (2027/12/31 05:18UT) Object RA Dec mag sep mel Deneb 20:42:23.2 +45:22:54 1.3 45.08 60 57Gam1And 02:05:37.8 +42:27:46 2.3 10.64 87 42Phi And 01:11:08.5 +47:23:25 4.2 0.23 81 PPM 043728 01:12:53.3 +46:46:41 7.2 0.45 81 42Phi And 01:11:08.5 +47:23:25 4.2 0.23 81 PPM 043679 01:10:25.1 +47:11:32 10.3 0.22 81 601690 01:11:42.6 +47:10:47 14.7 81 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
4.9 sigma about the mid-time.
The median site spacing is 14.2 km
RECON observability=1.0 and success probability=4.9%
Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
Dunrhomin | 05:17:44 | -61.9 | Dark | Down | 49.7 | 299.0 | Up | 05:02:44 - 05:32:44 | 7806 |
George/Scottsdale | 05:18:38 | -59.4 | Dark | Down | 50.6 | 305.0 | Up | 05:03:38 - 05:33:38 | 7742 |
Yuma | 05:18:51 | -57.3 | Dark | Down | 51.9 | 306.2 | Up | 05:03:51 - 05:33:51 | 7603 |
Parker | 05:18:42 | -57.3 | Dark | Down | 52.5 | 304.6 | Up | 05:03:42 - 05:33:42 | 7568 |
Lake Havasu City | 05:18:40 | -57.2 | Dark | Down | 52.7 | 304.3 | Up | 05:03:40 - 05:33:40 | 7551 |
Patrick | 05:18:34 | -57.4 | Dark | Down | 52.9 | 303.3 | Up | 05:03:34 - 05:33:34 | 7543 |
Kingman/Dolan Springs | 05:18:35 | -57.3 | Dark | Down | 52.9 | 303.5 | Up | 05:03:35 - 05:33:35 | 7540 |
Calipatria | 05:18:51 | -56.5 | Dark | Down | 52.7 | 305.8 | Up | 05:03:51 - 05:33:51 | 7526 |
Mohave Valley | 05:18:39 | -56.9 | Dark | Down | 53.1 | 303.8 | Up | 05:03:39 - 05:33:39 | 7518 |
Laughlin/Bullhead City | 05:18:37 | -56.9 | Dark | Down | 53.3 | 303.5 | Up | 05:03:37 - 05:33:37 | 7507 |
Henderson | 05:18:33 | -56.3 | Dark | Down | 54.0 | 302.6 | Up | 05:03:33 - 05:33:33 | 7444 |
Idyllwild | 05:18:51 | -55.4 | Dark | Down | 53.9 | 305.3 | Up | 05:03:51 - 05:33:51 | 7423 |
Indian Springs | 05:18:32 | -55.7 | Dark | Down | 54.8 | 301.9 | Up | 05:03:32 - 05:33:32 | 7376 |
Beatty | 05:18:33 | -54.8 | Dark | Down | 55.7 | 301.5 | Up | 05:03:33 - 05:33:33 | 7292 |
Wildwood | 05:18:53 | -53.8 | Dark | Down | 55.4 | 305.1 | Up | 05:03:53 - 05:33:53 | 7278 |
Tonopah | 05:18:27 | -54.1 | Dark | Down | 56.6 | 300.1 | Up | 05:03:27 - 05:33:27 | 7213 |
Bishop | 05:18:34 | -53.4 | Dark | Down | 57.1 | 301.0 | Up | 05:03:34 - 05:33:34 | 7164 |
Hawthorne | 05:18:28 | -53.0 | Dark | Down | 57.8 | 299.4 | Up | 05:03:28 - 05:33:28 | 7100 |
Lee Vining | 05:18:32 | -52.7 | Dark | Down | 57.9 | 300.2 | Up | 05:03:32 - 05:33:32 | 7091 |
Sleaford | 05:16:45 | -54.2 | Dark | Down | 54.7 | 284.3 | Up | 05:01:45 - 05:31:45 | 7048 |
Yerington | 05:18:26 | -52.4 | Dark | Down | 58.4 | 298.7 | Up | 05:03:26 - 05:33:26 | 7045 |
Gardnerville | 05:18:28 | -52.0 | Dark | Down | 58.8 | 298.8 | Up | 05:03:28 - 05:33:28 | 7008 |
Carson City | 05:18:27 | -51.9 | Dark | Down | 58.9 | 298.4 | Up | 05:03:27 - 05:33:27 | 6995 |
Reno | 05:18:25 | -51.8 | Dark | Down | 59.1 | 297.9 | Up | 05:03:25 - 05:33:25 | 6978 |
Portola | 05:18:24 | -51.3 | Dark | Down | 59.7 | 297.5 | Up | 05:03:24 - 05:33:24 | 6924 |
Quincy | 05:18:25 | -50.9 | Dark | Down | 60.1 | 297.3 | Up | 05:03:25 - 05:33:25 | 6886 |
Susanville | 05:18:21 | -51.0 | Dark | Down | 60.1 | 296.6 | Up | 05:03:21 - 05:33:21 | 6886 |
Gimple | 05:18:23 | -50.9 | Dark | Down | 60.1 | 297.0 | Up | 05:03:23 - 05:33:23 | 6884 |
Greenville | 05:18:24 | -50.8 | Dark | Down | 60.2 | 297.0 | Up | 05:03:24 - 05:33:24 | 6878 |
Cedarville | 05:18:14 | -51.0 | Dark | Down | 60.3 | 294.8 | Up | 05:03:14 - 05:33:14 | 6871 |
Lakeview | 05:18:10 | -50.7 | Dark | Down | 60.7 | 293.8 | Up | 05:03:10 - 05:33:10 | 6830 |
Fall River/Burney | 05:18:19 | -50.3 | Dark | Down | 60.9 | 295.5 | Up | 05:03:19 - 05:33:19 | 6810 |
North Lake | 05:18:05 | -50.0 | Dark | Down | 61.5 | 291.9 | Up | 05:03:05 - 05:33:05 | 6748 |
PNWRO | 05:17:45 | -50.4 | Dark | Down | 61.1 | 287.7 | Up | 05:02:45 - 05:32:45 | 6744 |
Klamath Falls | 05:18:13 | -49.7 | Dark | Down | 61.7 | 293.5 | Up | 05:03:13 - 05:33:13 | 6735 |
Chiloquin | 05:18:11 | -49.5 | Dark | Down | 61.9 | 292.9 | Up | 05:03:11 - 05:33:11 | 6716 |
Bend | 05:18:01 | -49.5 | Dark | Down | 62.1 | 290.4 | Up | 05:03:01 - 05:33:01 | 6686 |
Oregon Observatory | 05:18:03 | -49.5 | Dark | Down | 62.1 | 290.7 | Up | 05:03:03 - 05:33:03 | 6685 |
Sisters | 05:18:00 | -49.2 | Dark | Down | 62.3 | 289.9 | Up | 05:03:00 - 05:33:00 | 6659 |
Maupin | 05:17:54 | -49.3 | Dark | Down | 62.3 | 288.4 | Up | 05:02:54 - 05:32:54 | 6650 |
Goldendale | 05:17:50 | -49.2 | Dark | Down | 62.3 | 287.4 | Up | 05:02:50 - 05:32:50 | 6636 |
Toppenish/White Swan | 05:17:46 | -49.3 | Dark | Down | 62.2 | 286.5 | Up | 05:02:46 - 05:32:46 | 6636 |
The Dalles | 05:17:52 | -49.1 | Dark | Down | 62.5 | 287.7 | Up | 05:02:52 - 05:32:52 | 6624 |
Yakima | 05:17:45 | -49.1 | Dark | Down | 62.4 | 286.0 | Up | 05:02:45 - 05:32:45 | 6616 |
Ellensburg | 05:17:43 | -49.0 | Dark | Down | 62.5 | 285.3 | Up | 05:02:43 - 05:32:43 | 6598 |
Wenatchee | 05:17:40 | -49.0 | Dark | Down | 62.5 | 284.6 | Up | 05:02:40 - 05:32:40 | 6591 |
Brewster | 05:17:34 | -49.0 | Dark | Down | 62.3 | 283.5 | Up | 05:02:34 - 05:32:34 | 6589 |
Okanogan | 05:17:33 | -49.1 | Dark | Down | 62.3 | 283.1 | Up | 05:02:33 - 05:32:33 | 6587 |
Tonasket | 05:17:31 | -49.0 | Dark | Down | 62.2 | 282.6 | Up | 05:02:31 - 05:32:31 | 6579 |
Manson/Chelan | 05:17:37 | -48.9 | Dark | Down | 62.5 | 283.8 | Up | 05:02:37 - 05:32:37 | 6578 |
Anarchist Mountain Observatory | 05:17:29 | -48.9 | Dark | Down | 62.3 | 282.0 | Up | 05:02:29 - 05:32:29 | 6568 |
Oliver | 05:17:28 | -48.7 | Dark | Down | 62.4 | 281.6 | Up | 05:02:28 - 05:32:28 | 6548 |
Penticton | 05:17:26 | -48.6 | Dark | Down | 62.5 | 280.9 | Up | 05:02:26 - 05:32:26 | 6530 |
Summerland | 05:17:26 | -48.5 | Dark | Down | 62.6 | 280.8 | Up | 05:02:26 - 05:32:26 | 6520 |
Kelowna | 05:17:24 | -48.5 | Dark | Down | 62.5 | 280.4 | Up | 05:02:24 - 05:32:24 | 6519 |
Peachland | 05:17:25 | -48.4 | Dark | Down | 62.7 | 280.4 | Up | 05:02:25 - 05:32:25 | 6508 |
Kamloops | 05:17:21 | -47.6 | Dark | Down | 63.2 | 278.3 | Up | 05:02:21 - 05:32:21 | 6427 |
Victoria | 05:17:39 | -46.7 | Dark | Down | 64.8 | 281.0 | Up | 05:02:39 - 05:32:39 | 6354 |
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 601690, (2027/12/31 05:18UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 45.08 60 57Gam1And 02:03:54.1 +42:19:46 2.3 10.64 87 42Phi And 01:09:30.1 +47:14:31 4.2 0.23 81 PPM 043728 01:11:15.0 +46:37:48 7.2 0.45 81 42Phi And 01:09:30.1 +47:14:31 4.2 0.23 81 PPM 043679 01:08:47.0 +47:02:36 10.3 0.22 81 601690 01:10:04.3 +47:01:53 14.7 81 Positions are for J2000
Event circumstances last updated at 2022/02/04 00:29:18 UT
Marc W. Buie, Southwest Research Institute