Event between (559176) 15BE518 and star GA0720:05066587 with event index number of 2643859
Geocentric closest approach at 2027/01/31 09:55:05 UTC
J2000 position of star is 13:43:37.5 -16:26:01
Equinox of date position of star is 13:44:57.1 -16:33:21
Stellar brightness G=15.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 33 degrees from the moon.
Moon is 31% illuminated.
Apparent brightness V=21.0
[RECON map]
Object is 16.8 AU from the Sun
and 16.6 AU from the Earth.
Apparent velocity is 5.8
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 190 seconds.
The 1-sigma cross-track error in the shadow position is
1309 km.
The sky-plane scale is
12020.8 km/arcsec.
The object has an absolute magnitude Hv=8.5
Diameter=119.1 km assuming a 5% albedo -- 20.8 sec chord
Diameter=48.6 km assuming a 30% albedo -- 8.5 sec chord
Dynamical classification is CENTAURR
Star training set for 559176, (2027/01/31 09:51UT) Object RA Dec mag sep mel Spica 13:26:37.4 -11:18:06 1.0 6.91 40 83 Vir 13:45:57.8 -16:18:51 5.6 0.33 33 85 Vir 13:47:02.9 -15:54:09 6.8 0.82 33 PPM 227733 13:44:59.5 -16:37:59 9.2 0.07 33 559176 13:45:05.5 -16:34:08 15.5 33 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
4.7 sigma about the mid-time.
The median site spacing is 47.1 km
RECON observability=0.2 and success probability=0.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 09:38:22 | -45.6 | Dark | Down | 14.4 | 143.6 | Really Low | 09:23:22 - 09:53:22 | -3489 |
| Dunrhomin | 09:40:10 | -51.1 | Dark | Down | 24.3 | 142.2 | Low | 09:25:10 - 09:55:10 | -4072 |
| Nikitin | 09:40:16 | -51.2 | Dark | Down | 24.5 | 142.1 | Low | 09:25:16 - 09:55:16 | -4083 |
| CU-SBO | 09:40:13 | -51.3 | Dark | Down | 24.5 | 142.0 | Low | 09:25:13 - 09:55:13 | -4091 |
| Kamloops | 09:38:50 | -52.7 | Dark | Down | 9.3 | 130.8 | Really Low | 09:23:50 - 09:53:50 | -4316 |
| Kelowna | 09:38:55 | -53.1 | Dark | Down | 10.3 | 131.4 | Really Low | 09:23:55 - 09:53:55 | -4333 |
| Peachland | 09:38:56 | -53.3 | Dark | Down | 10.2 | 131.2 | Really Low | 09:23:56 - 09:53:56 | -4355 |
| Penticton | 09:38:57 | -53.4 | Dark | Down | 10.5 | 131.3 | Really Low | 09:23:57 - 09:53:57 | -4361 |
| Summerland | 09:38:56 | -53.3 | Dark | Down | 10.4 | 131.2 | Really Low | 09:23:56 - 09:53:56 | -4361 |
| Oliver | 09:39:00 | -53.6 | Dark | Down | 10.7 | 131.3 | Really Low | 09:24:00 - 09:54:00 | -4386 |
| Anarchist Mountain Observatory | 09:39:01 | -53.7 | Dark | Down | 10.9 | 131.4 | Really Low | 09:24:01 - 09:54:01 | -4389 |
| Okanogan | 09:39:07 | -54.3 | Dark | Down | 11.3 | 131.2 | Really Low | 09:24:07 - 09:54:07 | -4445 |
| Brewster | 09:39:10 | -54.6 | Dark | Down | 11.4 | 131.0 | Really Low | 09:24:10 - 09:54:10 | -4474 |
| Manson/Chelan | 09:39:11 | -54.9 | Dark | Down | 11.3 | 130.6 | Really Low | 09:24:11 - 09:54:11 | -4506 |
| Wenatchee | 09:39:15 | -55.3 | Dark | Down | 11.5 | 130.4 | Really Low | 09:24:15 - 09:54:15 | -4548 |
| PNWRO | 09:39:30 | -55.8 | Dark | Down | 13.2 | 131.4 | Really Low | 09:24:30 - 09:54:30 | -4573 |
| Ellensburg | 09:39:20 | -55.7 | Dark | Down | 11.7 | 130.2 | Really Low | 09:24:20 - 09:54:20 | -4588 |
| Victoria | 09:39:07 | -55.6 | Dark | Down | 9.2 | 128.0 | Really Low | 09:24:07 - 09:54:07 | -4612 |
| Yakima | 09:39:24 | -56.1 | Dark | Down | 12.0 | 130.1 | Really Low | 09:24:24 - 09:54:24 | -4617 |
| Toppenish/White Swan | 09:39:26 | -56.2 | Dark | Down | 12.2 | 130.3 | Really Low | 09:24:26 - 09:54:26 | -4624 |
| The Dalles | 09:39:33 | -57.1 | Dark | Down | 12.3 | 129.5 | Really Low | 09:24:33 - 09:54:33 | -4717 |
| Maupin | 09:39:37 | -57.4 | Dark | Down | 12.6 | 129.5 | Really Low | 09:24:37 - 09:54:37 | -4741 |
| Sisters | 09:39:48 | -58.3 | Dark | Down | 12.9 | 129.0 | Really Low | 09:24:48 - 09:54:48 | -4826 |
| Bend | 09:39:48 | -58.3 | Dark | Down | 13.2 | 129.2 | Really Low | 09:24:48 - 09:54:48 | -4829 |
| Oregon Observatory | 09:39:51 | -58.5 | Dark | Down | 13.3 | 129.1 | Really Low | 09:24:51 - 09:54:51 | -4848 |
| George/Scottsdale | 09:41:35 | -58.4 | Dark | Down | 25.9 | 134.5 | Low | 09:26:35 - 09:56:35 | -4860 |
| Patrick | 09:41:13 | -59.2 | Dark | Down | 23.4 | 133.4 | Low | 09:26:13 - 09:56:13 | -4912 |
| Cedarville | 09:40:13 | -59.6 | Dark | Down | 15.5 | 129.7 | Really Low | 09:25:13 - 09:55:13 | -4936 |
| Chiloquin | 09:40:04 | -59.7 | Dark | Down | 13.9 | 128.5 | Really Low | 09:25:04 - 09:55:04 | -4958 |
| Laughlin/Bullhead City | 09:41:20 | -59.8 | Dark | Down | 23.2 | 132.7 | Low | 09:26:20 - 09:56:20 | -4971 |
| Klamath Falls | 09:40:13 | -59.9 | Dark | Down | 14.2 | 128.5 | Really Low | 09:25:13 - 09:55:13 | -4976 |
| Lake Havasu City | 09:41:33 | -59.9 | Dark | Down | 23.8 | 132.8 | Low | 09:26:33 - 09:56:33 | -4990 |
| Beatty | 09:41:03 | -60.5 | Dark | Down | 20.7 | 131.4 | Low | 09:26:03 - 09:56:03 | -5017 |
| Fall River/Burney | 09:40:21 | -60.6 | Dark | Down | 15.1 | 128.6 | Really Low | 09:25:21 - 09:55:21 | -5033 |
| Hawthorne | 09:40:49 | -60.7 | Dark | Down | 18.5 | 130.3 | Really Low | 09:25:49 - 09:55:49 | -5036 |
| Yerington | 09:40:38 | -60.8 | Dark | Down | 17.8 | 130.0 | Really Low | 09:25:38 - 09:55:38 | -5038 |
| Reno | 09:40:36 | -60.8 | Dark | Down | 17.1 | 129.6 | Really Low | 09:25:36 - 09:55:36 | -5042 |
| Portola | 09:40:31 | -61.0 | Dark | Down | 16.5 | 129.1 | Really Low | 09:25:31 - 09:55:31 | -5062 |
| Gimple | 09:40:31 | -60.9 | Dark | Down | 16.1 | 128.9 | Really Low | 09:25:31 - 09:55:31 | -5063 |
| Carson City | 09:40:37 | -61.0 | Dark | Down | 17.3 | 129.5 | Really Low | 09:25:37 - 09:55:37 | -5063 |
| Greenville | 09:40:26 | -61.0 | Dark | Down | 16.0 | 128.8 | Really Low | 09:25:26 - 09:55:26 | -5067 |
| Gardnerville | 09:40:43 | -61.1 | Dark | Down | 17.5 | 129.5 | Really Low | 09:25:43 - 09:55:43 | -5075 |
| Quincy | 09:40:30 | -61.1 | Dark | Down | 16.1 | 128.8 | Really Low | 09:25:30 - 09:55:30 | -5080 |
| Bishop | 09:41:00 | -61.3 | Dark | Down | 19.4 | 130.2 | Really Low | 09:26:00 - 09:56:00 | -5090 |
| Lee Vining | 09:40:55 | -61.4 | Dark | Down | 18.5 | 129.8 | Really Low | 09:25:55 - 09:55:55 | -5098 |
| Yuma | 09:41:51 | -60.9 | Dark | Down | 24.9 | 132.0 | Low | 09:26:51 - 09:56:51 | -5102 |
| Calipatria | 09:41:47 | -61.4 | Dark | Down | 24.0 | 131.4 | Low | 09:26:47 - 09:56:47 | -5140 |
| Idyllwild | 09:41:40 | -62.0 | Dark | Down | 22.9 | 130.6 | Low | 09:26:40 - 09:56:40 | -5188 |
| Wildwood | 09:41:40 | -63.2 | Dark | Down | 21.4 | 129.3 | Low | 09:26:40 - 09:56:40 | -5288 |
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 559176, (2027/01/31 09:51UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 6.91 40 83 Vir 13:44:29.9 -16:10:45 5.6 0.33 33 85 Vir 13:45:35.0 -15:46:04 6.8 0.82 33 PPM 227733 13:43:31.5 -16:29:51 9.2 0.07 33 559176 13:43:37.5 -16:26:01 15.5 33 Positions are for J2000
Event circumstances last updated at 2024/06/21 21:25:37 UT
Marc W. Buie, Southwest Research Institute