Event between (469987) 06HJ123 and star GA0740:08282827 with event index number of 2256767
Geocentric closest approach at 2027/06/09 04:17:06 UTC
J2000 position of star is 17:27:50.7 -14:58:09
Equinox of date position of star is 17:29:10.9 -14:59:13
Stellar brightness G=13.6,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 124 degrees from the moon.
Moon is 25% illuminated.
Apparent brightness V=21.0
[RECON map]
Object is 31.4 AU from the Sun
and 30.4 AU from the Earth.
Apparent velocity is 23.7
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 77 seconds.
The 1-sigma cross-track error in the shadow position is
1126 km.
The sky-plane scale is
22035.2 km/arcsec.
The object has an absolute magnitude Hv=6.1
Diameter=359.8 km assuming a 5% albedo -- 15.3 sec chord
Diameter=146.9 km assuming a 30% albedo -- 6.2 sec chord
Dynamical classification is 3:2E
Star training set for 469987, (2027/06/09 04:18UT) Object RA Dec mag sep mel Antares 16:31:05.7 -26:29:25 0.9 17.81 111 35Eta Oph 17:11:57.2 -15:45:25 2.6 4.28 120 55Xi Ser 17:39:09.6 -15:24:48 3.5 2.39 126 PPM 233087 17:28:44.6 -15:52:29 6.6 0.90 124 PPM 233115 17:30:06.9 -15:00:45 9.7 0.17 124 469987 17:29:24.7 -14:59:24 13.6 124 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 14.1 km
RECON observability=0.1 and success probability=0.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 04:19:29 | -7.0 | NT | Up | 12.2 | 135.0 | Really Low | 04:12:32 - 04:26:26 | 5042 |
| Kamloops | 04:19:57 | -1.9 | CT | Up | 6.1 | 122.7 | Really Low | 04:13:00 - 04:26:54 | 4686 |
| Kelowna | 04:19:58 | -2.8 | CT | Up | 7.0 | 123.3 | Really Low | 04:13:01 - 04:26:55 | 4651 |
| Peachland | 04:19:59 | -2.8 | CT | Up | 6.9 | 123.1 | Really Low | 04:13:02 - 04:26:56 | 4638 |
| Summerland | 04:19:59 | -2.9 | CT | Up | 7.1 | 123.2 | Really Low | 04:13:02 - 04:26:56 | 4630 |
| Penticton | 04:19:59 | -3.0 | CT | Up | 7.2 | 123.2 | Really Low | 04:13:02 - 04:26:56 | 4628 |
| Oliver | 04:20:00 | -3.2 | CT | Up | 7.3 | 123.2 | Really Low | 04:13:03 - 04:26:57 | 4604 |
| Anarchist Mountain Observatory | 04:20:00 | -3.4 | CT | Up | 7.5 | 123.3 | Really Low | 04:13:03 - 04:26:57 | 4597 |
| Okanogan | 04:20:02 | -3.8 | CT | Up | 7.8 | 123.1 | Really Low | 04:13:05 - 04:26:59 | 4549 |
| Brewster | 04:20:03 | -3.8 | CT | Up | 7.8 | 122.9 | Really Low | 04:13:06 - 04:27:00 | 4526 |
| Manson/Chelan | 04:20:05 | -3.8 | CT | Up | 7.7 | 122.6 | Really Low | 04:13:08 - 04:27:02 | 4505 |
| Victoria | 04:20:07 | -1.7 | CT | Up | 5.5 | 120.1 | Really Low | 04:13:10 - 04:27:04 | 4481 |
| Wenatchee | 04:20:06 | -4.0 | CT | Up | 7.9 | 122.4 | Really Low | 04:13:09 - 04:27:03 | 4468 |
| Ellensburg | 04:20:07 | -4.2 | CT | Up | 8.0 | 122.2 | Really Low | 04:13:10 - 04:27:04 | 4435 |
| Yakima | 04:20:09 | -4.4 | CT | Up | 8.2 | 122.1 | Really Low | 04:13:12 - 04:27:06 | 4406 |
| PNWRO | 04:20:08 | -5.7 | CT | Up | 9.5 | 123.4 | Really Low | 04:13:11 - 04:27:05 | 4400 |
| Toppenish/White Swan | 04:20:09 | -4.7 | CT | Up | 8.4 | 122.2 | Really Low | 04:13:12 - 04:27:06 | 4394 |
| The Dalles | 04:20:12 | -4.8 | CT | Up | 8.4 | 121.5 | Really Low | 04:13:15 - 04:27:09 | 4322 |
| Maupin | 04:20:13 | -5.1 | CT | Up | 8.6 | 121.6 | Really Low | 04:13:16 - 04:27:10 | 4294 |
| Dunrhomin | 04:19:52 | -16.7 | AT | Up | 20.8 | 133.2 | Low | 04:12:55 - 04:26:49 | 4283 |
| Nikitin | 04:19:53 | -16.8 | AT | Up | 21.0 | 133.1 | Low | 04:12:56 - 04:26:50 | 4269 |
| CU-SBO | 04:19:53 | -16.8 | AT | Up | 21.0 | 133.1 | Low | 04:12:56 - 04:26:50 | 4263 |
| Sisters | 04:20:16 | -5.4 | CT | Up | 8.8 | 121.1 | Really Low | 04:13:19 - 04:27:13 | 4219 |
| Bend | 04:20:17 | -5.7 | CT | Up | 9.1 | 121.3 | Really Low | 04:13:20 - 04:27:14 | 4207 |
| Oregon Observatory | 04:20:17 | -5.7 | CT | Up | 9.1 | 121.1 | Really Low | 04:13:20 - 04:27:14 | 4191 |
| Chiloquin | 04:20:21 | -6.3 | NT | Up | 9.5 | 120.7 | Really Low | 04:13:24 - 04:27:18 | 4083 |
| Klamath Falls | 04:20:22 | -6.6 | NT | Up | 9.8 | 120.7 | Really Low | 04:13:25 - 04:27:19 | 4058 |
| Cedarville | 04:20:21 | -8.0 | NT | Up | 11.1 | 121.7 | Really Low | 04:13:24 - 04:27:18 | 4042 |
| Fall River/Burney | 04:20:24 | -7.6 | NT | Up | 10.6 | 120.8 | Really Low | 04:13:27 - 04:27:21 | 3976 |
| Gimple | 04:20:25 | -8.5 | NT | Up | 11.4 | 121.0 | Really Low | 04:13:28 - 04:27:22 | 3917 |
| Greenville | 04:20:26 | -8.4 | NT | Up | 11.4 | 121.0 | Really Low | 04:13:29 - 04:27:23 | 3915 |
| Portola | 04:20:25 | -8.9 | NT | Up | 11.9 | 121.2 | Really Low | 04:13:28 - 04:27:22 | 3900 |
| Quincy | 04:20:25 | -8.6 | NT | Up | 11.5 | 120.9 | Really Low | 04:13:28 - 04:27:22 | 3899 |
| Reno | 04:20:25 | -9.5 | NT | Up | 12.4 | 121.7 | Really Low | 04:13:28 - 04:27:22 | 3895 |
| Carson City | 04:20:25 | -9.7 | NT | Up | 12.6 | 121.6 | Really Low | 04:13:28 - 04:27:22 | 3867 |
| Yerington | 04:20:25 | -10.2 | NT | Up | 13.2 | 122.0 | Really Low | 04:13:28 - 04:27:22 | 3866 |
| Gardnerville | 04:20:25 | -9.9 | NT | Up | 12.8 | 121.6 | Really Low | 04:13:28 - 04:27:22 | 3848 |
| Hawthorne | 04:20:25 | -10.8 | NT | Up | 13.8 | 122.3 | Really Low | 04:13:28 - 04:27:22 | 3841 |
| Lee Vining | 04:20:27 | -10.9 | NT | Up | 13.7 | 121.9 | Really Low | 04:13:30 - 04:27:24 | 3784 |
| Beatty | 04:20:24 | -13.0 | AT | Up | 15.9 | 123.3 | Really Low | 04:13:27 - 04:27:21 | 3755 |
| Bishop | 04:20:26 | -11.7 | NT | Up | 14.5 | 122.3 | Really Low | 04:13:29 - 04:27:23 | 3753 |
| Patrick | 04:20:21 | -15.7 | AT | Up | 18.6 | 125.0 | Really Low | 04:13:24 - 04:27:18 | 3703 |
| Laughlin/Bullhead City | 04:20:23 | -15.5 | AT | Up | 18.3 | 124.5 | Really Low | 04:13:26 - 04:27:20 | 3665 |
| Lake Havasu City | 04:20:24 | -16.1 | AT | Up | 18.9 | 124.5 | Really Low | 04:13:27 - 04:27:21 | 3615 |
| George/Scottsdale | 04:20:20 | -18.1 | Dark | Up | 21.0 | 126.0 | Low | 04:13:23 - 04:27:17 | 3611 |
| Idyllwild | 04:20:30 | -15.2 | AT | Up | 17.6 | 122.6 | Really Low | 04:13:33 - 04:27:27 | 3492 |
| Wildwood | 04:20:33 | -13.8 | AT | Up | 16.1 | 121.4 | Really Low | 04:13:36 - 04:27:30 | 3474 |
| Calipatria | 04:20:29 | -16.3 | AT | Up | 18.8 | 123.2 | Really Low | 04:13:32 - 04:27:26 | 3469 |
| Yuma | 04:20:28 | -17.2 | AT | Up | 19.7 | 123.7 | Really Low | 04:13:31 - 04:27:25 | 3454 |
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 469987, (2027/06/09 04:18UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 17.81 111 35Eta Oph 17:10:22.7 -15:43:29 2.6 4.28 120 55Xi Ser 17:37:35.1 -15:23:56 3.5 2.39 126 PPM 233087 17:27:09.9 -15:51:12 6.6 0.90 124 PPM 233115 17:28:32.8 -14:59:31 9.7 0.17 124 469987 17:27:50.7 -14:58:09 13.6 124 Positions are for J2000
Event circumstances last updated at 2023/05/29 03:00:49 UT
Marc W. Buie, Southwest Research Institute