Event between 09JE19 and star GA0920:04136537 with event index number of 2363712
Geocentric closest approach at 2027/02/18 11:32:12 UTC
J2000 position of star is 15:37:34.5 +03:26:50
Equinox of date position of star is 15:38:45.2 +03:22:17
Stellar brightness G=15.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 113 degrees from the moon.
Moon is 91% illuminated.
Apparent brightness V=21.4
[RECON map]
Object is 28.6 AU from the Sun
and 28.5 AU from the Earth.
Apparent velocity is 11.7
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 118 seconds.
The 1-sigma cross-track error in the shadow position is
2795 km.
The sky-plane scale is
20639.0 km/arcsec.
The object has an absolute magnitude Hv=6.6
Diameter=289.7 km assuming a 5% albedo -- 25.1 sec chord
Diameter=118.3 km assuming a 30% albedo -- 10.2 sec chord
Dynamical classification is 3:2E
Star training set for 09JE19, (2027/02/18 11:32UT) Object RA Dec mag sep mel Arcturus 14:16:54.3 +19:02:40 0.0 25.45 88 Unukalhai 15:45:36.4 +06:20:31 2.6 3.41 113 10 Ser 15:30:00.7 +01:44:59 5.2 2.75 112 PPM 161683 15:34:39.7 +03:13:58 8.5 1.07 112 PPM 161762 15:39:01.7 +03:32:49 9.7 0.19 113 PPM 161752 15:38:20.4 +03:26:15 10.6 0.17 113 09JE19 15:38:56.2 +03:21:34 15.0 113 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 5.6 km
RECON observability=1.0 and success probability=13.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 11:36:30 | -36.3 | Dark | Up | 35.7 | 134.5 | Up | 11:26:09 - 11:46:51 | 0 |
| Chiloquin | 11:35:45 | -37.8 | Dark | Up | 40.5 | 132.6 | Up | 11:25:24 - 11:46:06 | -48 |
| Klamath Falls | 11:35:42 | -37.9 | Dark | Up | 40.8 | 132.5 | Up | 11:25:21 - 11:46:03 | -53 |
| Sisters | 11:36:00 | -36.9 | Dark | Up | 39.5 | 134.0 | Up | 11:25:39 - 11:46:21 | -73 |
| Fall River/Burney | 11:35:34 | -38.1 | Dark | Up | 41.7 | 132.1 | Up | 11:25:13 - 11:45:55 | -76 |
| Oregon Observatory | 11:35:57 | -37.0 | Dark | Up | 39.8 | 133.9 | Up | 11:25:36 - 11:46:18 | -79 |
| Bend | 11:35:58 | -36.9 | Dark | Up | 39.8 | 134.2 | Up | 11:25:37 - 11:46:19 | -88 |
| The Dalles | 11:36:11 | -36.2 | Dark | Up | 38.8 | 135.3 | Up | 11:25:50 - 11:46:32 | -103 |
| Greenville | 11:35:27 | -38.1 | Dark | Up | 42.6 | 131.9 | Up | 11:25:06 - 11:45:48 | -105 |
| Quincy | 11:35:25 | -38.2 | Dark | Up | 42.7 | 131.8 | Up | 11:25:04 - 11:45:46 | -105 |
| Maupin | 11:36:08 | -36.3 | Dark | Up | 39.1 | 135.1 | Up | 11:25:47 - 11:46:29 | -108 |
| Gimple | 11:35:27 | -38.0 | Dark | Up | 42.6 | 132.0 | Up | 11:25:06 - 11:45:48 | -110 |
| Portola | 11:35:25 | -37.8 | Dark | Up | 43.1 | 132.2 | Up | 11:25:04 - 11:45:46 | -137 |
| Yakima | 11:36:20 | -35.4 | Dark | Up | 38.4 | 136.6 | Up | 11:25:59 - 11:46:41 | -146 |
| Ellensburg | 11:36:23 | -35.2 | Dark | Up | 38.1 | 136.8 | Up | 11:26:02 - 11:46:44 | -150 |
| Cedarville | 11:35:40 | -37.0 | Dark | Up | 42.1 | 133.8 | Up | 11:25:19 - 11:46:01 | -155 |
| Toppenish/White Swan | 11:36:19 | -35.3 | Dark | Up | 38.6 | 136.6 | Up | 11:25:58 - 11:46:40 | -155 |
| Wenatchee | 11:36:27 | -34.9 | Dark | Up | 37.9 | 137.3 | Up | 11:26:06 - 11:46:48 | -166 |
| Manson/Chelan | 11:36:31 | -34.6 | Dark | Up | 37.7 | 137.8 | Up | 11:26:10 - 11:46:52 | -179 |
| Reno | 11:35:24 | -37.5 | Dark | Up | 43.6 | 132.8 | Up | 11:25:03 - 11:45:45 | -181 |
| Carson City | 11:35:22 | -37.6 | Dark | Up | 43.9 | 132.5 | Up | 11:25:01 - 11:45:43 | -183 |
| Gardnerville | 11:35:20 | -37.6 | Dark | Up | 44.1 | 132.4 | Up | 11:24:59 - 11:45:41 | -187 |
| Kamloops | 11:36:52 | -33.5 | Dark | Up | 35.5 | 139.0 | Up | 11:26:31 - 11:47:13 | -192 |
| Brewster | 11:36:34 | -34.2 | Dark | Up | 37.7 | 138.3 | Up | 11:26:13 - 11:46:55 | -202 |
| Okanogan | 11:36:36 | -34.0 | Dark | Up | 37.6 | 138.7 | Up | 11:26:15 - 11:46:57 | -216 |
| Peachland | 11:36:46 | -33.5 | Dark | Up | 36.5 | 139.2 | Up | 11:26:25 - 11:47:07 | -216 |
| Summerland | 11:36:45 | -33.5 | Dark | Up | 36.6 | 139.2 | Up | 11:26:24 - 11:47:06 | -220 |
| Oliver | 11:36:42 | -33.7 | Dark | Up | 37.0 | 139.2 | Up | 11:26:21 - 11:47:03 | -223 |
| Penticton | 11:36:45 | -33.5 | Dark | Up | 36.7 | 139.3 | Up | 11:26:24 - 11:47:06 | -226 |
| Yerington | 11:35:22 | -37.1 | Dark | Up | 44.4 | 133.1 | Up | 11:25:01 - 11:45:43 | -227 |
| Anarchist Mountain Observatory | 11:36:42 | -33.6 | Dark | Up | 37.2 | 139.3 | Up | 11:26:21 - 11:47:03 | -233 |
| Lee Vining | 11:35:13 | -37.4 | Dark | Up | 45.1 | 132.4 | Up | 11:24:52 - 11:45:34 | -234 |
| Kelowna | 11:36:48 | -33.3 | Dark | Up | 36.5 | 139.6 | Up | 11:26:27 - 11:47:09 | -234 |
| PNWRO | 11:36:19 | -34.5 | Dark | Up | 39.6 | 138.1 | Up | 11:25:58 - 11:46:40 | -244 |
| Hawthorne | 11:35:19 | -36.9 | Dark | Up | 45.0 | 133.4 | Up | 11:24:58 - 11:45:40 | -266 |
| Bishop | 11:35:10 | -37.0 | Dark | Up | 45.9 | 132.8 | Up | 11:24:49 - 11:45:31 | -289 |
| Wildwood | 11:34:41 | -38.1 | Dark | Up | 47.9 | 129.8 | Up | 11:24:20 - 11:45:02 | -301 |
| Beatty | 11:35:10 | -35.9 | Dark | Up | 47.2 | 134.4 | Up | 11:24:49 - 11:45:31 | -408 |
| Idyllwild | 11:34:43 | -36.6 | Dark | Up | 49.3 | 131.7 | Up | 11:24:22 - 11:45:04 | -443 |
| Calipatria | 11:34:41 | -35.8 | Dark | Up | 50.4 | 132.6 | Up | 11:24:20 - 11:45:02 | -541 |
| Laughlin/Bullhead City | 11:35:01 | -34.6 | Dark | Up | 49.6 | 135.6 | Up | 11:24:40 - 11:45:22 | -586 |
| Lake Havasu City | 11:34:56 | -34.5 | Dark | Up | 50.2 | 135.4 | Up | 11:24:35 - 11:45:17 | -614 |
| Yuma | 11:34:40 | -35.1 | Dark | Up | 51.3 | 133.3 | Up | 11:24:19 - 11:45:01 | -616 |
| Patrick | 11:35:05 | -33.9 | Dark | Up | 49.8 | 136.7 | Up | 11:24:44 - 11:45:26 | -636 |
| George/Scottsdale | 11:34:57 | -32.6 | Dark | Up | 52.2 | 137.9 | Up | 11:24:36 - 11:45:18 | -814 |
| Sleaford | 11:37:33 | -24.4 | Dark | Up | 39.2 | 156.9 | Up | 11:27:12 - 11:47:54 | -1028 |
| CU-SBO | 11:36:07 | -26.3 | Dark | Up | 50.2 | 152.2 | Up | 11:25:46 - 11:46:28 | -1213 |
| Dunrhomin | 11:36:09 | -26.2 | Dark | Up | 50.0 | 152.5 | Up | 11:25:48 - 11:46:30 | -1216 |
| Nikitin | 11:36:07 | -26.2 | Dark | Up | 50.2 | 152.3 | Up | 11:25:46 - 11:46:28 | -1218 |
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 09JE19, (2027/02/18 11:32UT) Object RA Dec mag sep mel Arcturus 14:15:37.9 +19:10:10 0.0 25.45 88 Unukalhai 15:44:16.3 +06:25:33 2.6 3.41 113 10 Ser 15:28:38.1 +01:50:31 5.2 2.75 112 PPM 161683 15:33:18.0 +03:19:21 8.5 1.07 112 PPM 161762 15:37:40.1 +03:38:05 9.7 0.19 113 PPM 161752 15:36:58.8 +03:31:31 10.6 0.17 113 09JE19 15:37:34.5 +03:26:50 15.0 113 Positions are for J2000
Event circumstances last updated at 2023/06/21 02:51:18 UT
Marc W. Buie, Southwest Research Institute