Event between (145451) 05RM43 and star GA1140:01441936 with event index number of 2469004
Geocentric closest approach at 2027/03/31 03:43:43 UTC
J2000 position of star is 05:44:16.1 +25:08:27
Equinox of date position of star is 05:45:46.1 +25:08:59
Stellar brightness G=13.6,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 154 degrees from the moon.
Moon is 40% illuminated.
Apparent brightness V=20.7
[RECON map]
Object is 39.6 AU from the Sun
and 39.8 AU from the Earth.
Apparent velocity is 11.6
km/sec on the sky relative to the star, or,
1.4 arcsec/hr.
The 1-sigma error in the time of the event is 164 seconds.
The 1-sigma cross-track error in the shadow position is
1641 km.
The sky-plane scale is
28864.3 km/arcsec.
The object has an absolute magnitude Hv=4.6
Diameter=721.1 km assuming a 5% albedo -- 62.6 sec chord
Diameter=294.4 km assuming a 30% albedo -- 25.6 sec chord
Dynamical classification is SCATNEAR
Star training set for 145451, (2027/03/31 03:43UT) Object RA Dec mag sep mel Betelgeuse 05:56:38.9 +07:24:35 0.4 17.92 150 Alnath 05:28:01.0 +28:37:41 1.6 5.30 150 132 Tau 05:50:41.4 +24:34:27 4.9 1.22 155 PPM 094753 05:45:20.1 +25:27:00 6.7 0.33 154 PPM 094769 05:45:58.8 +25:12:42 9.9 0.06 154 145451 05:45:57.0 +25:09:03 13.6 155 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 38.3 km
RECON observability=0.6 and success probability=26.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 03:49:04 | -19.9 | Dark | Down | 41.7 | 257.4 | Up | 03:34:53 - 04:03:16 | 2814 |
| Kamloops | 03:48:06 | -12.6 | AT | Down | 50.8 | 244.1 | Up | 03:33:54 - 04:02:17 | 2500 |
| Kelowna | 03:48:12 | -13.5 | AT | Down | 50.6 | 246.0 | Up | 03:34:01 - 04:02:24 | 2426 |
| Peachland | 03:48:11 | -13.3 | AT | Down | 50.8 | 245.8 | Up | 03:34:00 - 04:02:23 | 2412 |
| Summerland | 03:48:13 | -13.5 | AT | Down | 50.9 | 246.1 | Up | 03:34:01 - 04:02:24 | 2397 |
| Penticton | 03:48:13 | -13.6 | AT | Down | 50.8 | 246.3 | Up | 03:34:02 - 04:02:25 | 2392 |
| Oliver | 03:48:14 | -13.7 | AT | Down | 50.9 | 246.7 | Up | 03:34:02 - 04:02:25 | 2356 |
| Anarchist Mountain Observatory | 03:48:15 | -13.9 | AT | Down | 50.9 | 247.1 | Up | 03:34:04 - 04:02:27 | 2341 |
| Okanogan | 03:48:16 | -14.0 | AT | Down | 51.3 | 247.6 | Up | 03:34:04 - 04:02:27 | 2273 |
| Victoria | 03:47:56 | -11.5 | NT | Down | 53.6 | 243.1 | Up | 03:33:44 - 04:02:07 | 2257 |
| Brewster | 03:48:15 | -14.0 | AT | Down | 51.5 | 247.7 | Up | 03:34:04 - 04:02:27 | 2243 |
| Manson/Chelan | 03:48:15 | -13.8 | AT | Down | 51.8 | 247.6 | Up | 03:34:03 - 04:02:26 | 2218 |
| Wenatchee | 03:48:15 | -13.9 | AT | Down | 52.1 | 247.9 | Up | 03:34:04 - 04:02:27 | 2168 |
| Ellensburg | 03:48:15 | -13.9 | AT | Down | 52.4 | 248.2 | Up | 03:34:04 - 04:02:27 | 2123 |
| Yakima | 03:48:17 | -14.1 | AT | Down | 52.5 | 248.7 | Up | 03:34:06 - 04:02:29 | 2081 |
| Toppenish/White Swan | 03:48:18 | -14.3 | AT | Down | 52.5 | 249.1 | Up | 03:34:06 - 04:02:29 | 2060 |
| PNWRO | 03:48:27 | -15.4 | AT | Down | 51.6 | 251.2 | Up | 03:34:15 - 04:02:38 | 2037 |
| The Dalles | 03:48:15 | -14.0 | AT | Down | 53.3 | 249.3 | Up | 03:34:04 - 04:02:27 | 1972 |
| Maupin | 03:48:17 | -14.2 | AT | Down | 53.4 | 249.9 | Up | 03:34:06 - 04:02:29 | 1929 |
| Sisters | 03:48:16 | -14.2 | AT | Down | 54.0 | 250.5 | Up | 03:34:04 - 04:02:27 | 1833 |
| Bend | 03:48:19 | -14.5 | AT | Down | 53.9 | 251.1 | Up | 03:34:07 - 04:02:30 | 1810 |
| Oregon Observatory | 03:48:18 | -14.5 | AT | Down | 54.1 | 251.2 | Up | 03:34:07 - 04:02:30 | 1791 |
| Dunrhomin | 03:49:57 | -27.2 | Dark | Down | 42.5 | 268.8 | Up | 03:35:46 - 04:04:09 | 1649 |
| Chiloquin | 03:48:19 | -14.6 | AT | Down | 54.8 | 252.5 | Up | 03:34:08 - 04:02:31 | 1648 |
| Nikitin | 03:49:57 | -27.2 | Dark | Down | 42.5 | 269.0 | Up | 03:35:46 - 04:04:09 | 1629 |
| CU-SBO | 03:49:57 | -27.2 | Dark | Down | 42.5 | 269.0 | Up | 03:35:46 - 04:04:09 | 1621 |
| Klamath Falls | 03:48:20 | -14.8 | AT | Down | 54.8 | 253.1 | Up | 03:34:09 - 04:02:32 | 1612 |
| Cedarville | 03:48:32 | -16.2 | AT | Down | 53.8 | 255.6 | Up | 03:34:21 - 04:02:44 | 1554 |
| Fall River/Burney | 03:48:26 | -15.5 | AT | Down | 54.8 | 255.1 | Up | 03:34:14 - 04:02:37 | 1490 |
| Gimple | 03:48:31 | -16.2 | AT | Down | 54.6 | 256.8 | Up | 03:34:19 - 04:02:42 | 1398 |
| Greenville | 03:48:30 | -16.1 | AT | Down | 54.7 | 256.7 | Up | 03:34:19 - 04:02:42 | 1398 |
| Quincy | 03:48:30 | -16.2 | AT | Down | 54.7 | 257.0 | Up | 03:34:18 - 04:02:41 | 1376 |
| Portola | 03:48:34 | -16.6 | AT | Down | 54.4 | 257.6 | Up | 03:34:23 - 04:02:46 | 1367 |
| Reno | 03:48:39 | -17.2 | AT | Down | 54.0 | 258.6 | Up | 03:34:27 - 04:02:50 | 1346 |
| Carson City | 03:48:40 | -17.3 | AT | Down | 54.0 | 259.1 | Up | 03:34:28 - 04:02:51 | 1307 |
| Yerington | 03:48:44 | -17.9 | AT | Down | 53.5 | 259.9 | Up | 03:34:32 - 04:02:55 | 1294 |
| Gardnerville | 03:48:40 | -17.5 | AT | Down | 54.0 | 259.4 | Up | 03:34:29 - 04:02:52 | 1282 |
| Hawthorne | 03:48:48 | -18.4 | Dark | Down | 53.2 | 260.9 | Up | 03:34:37 - 04:03:00 | 1250 |
| Lee Vining | 03:48:47 | -18.3 | Dark | Down | 53.7 | 261.3 | Up | 03:34:35 - 04:02:58 | 1184 |
| Bishop | 03:48:53 | -19.0 | Dark | Down | 53.2 | 262.7 | Up | 03:34:42 - 04:03:05 | 1128 |
| Beatty | 03:49:04 | -20.5 | Dark | Down | 51.9 | 264.5 | Up | 03:34:52 - 04:03:15 | 1099 |
| Patrick | 03:49:25 | -23.3 | Dark | Down | 49.6 | 268.2 | Up | 03:35:13 - 04:03:36 | 980 |
| Laughlin/Bullhead City | 03:49:21 | -22.8 | Dark | Down | 50.2 | 268.1 | Up | 03:35:10 - 04:03:33 | 943 |
| Lake Havasu City | 03:49:24 | -23.3 | Dark | Down | 50.0 | 269.0 | Up | 03:35:12 - 04:03:35 | 874 |
| George/Scottsdale | 03:49:41 | -25.5 | Dark | Down | 47.9 | 271.4 | Up | 03:35:29 - 04:03:52 | 831 |
| Wildwood | 03:48:58 | -20.0 | Dark | Down | 53.6 | 266.9 | Up | 03:34:46 - 04:03:09 | 771 |
| Idyllwild | 03:49:11 | -21.7 | Dark | Down | 52.0 | 268.6 | Up | 03:34:59 - 04:03:22 | 757 |
| Calipatria | 03:49:20 | -22.8 | Dark | Down | 51.0 | 270.0 | Up | 03:35:08 - 04:03:31 | 708 |
| Yuma | 03:49:26 | -23.7 | Dark | Down | 50.2 | 271.0 | Up | 03:35:15 - 04:03:38 | 674 |
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 145451, (2027/03/31 03:43UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 17.92 150 Alnath 05:26:17.6 +28:36:23 1.6 5.30 150 132 Tau 05:49:00.9 +24:34:02 4.9 1.22 155 PPM 094753 05:43:39.0 +25:26:23 6.7 0.33 154 PPM 094769 05:44:18.0 +25:12:07 9.9 0.06 154 145451 05:44:16.1 +25:08:27 13.6 154 Positions are for J2000
Event circumstances last updated at 2024/04/23 03:27:10 UT
Marc W. Buie, Southwest Research Institute