Event between (5145) Pholus and star GA0740:18430580 with event index number of 1401989
Geocentric closest approach at 2024/10/17 02:05:30 UTC
J2000 position of star is 18:28:22.3 -14:10:51
Equinox of date position of star is 18:29:45.6 -14:09:49
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 101 degrees from the moon.
Moon is 100% illuminated.
Apparent brightness V=22.1
[RECON map]
Object is 30.1 AU from the Sun
and 30.4 AU from the Earth.
Apparent velocity is 13.9
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 184 seconds.
The 1-sigma cross-track error in the shadow position is
1743 km.
The sky-plane scale is
22057.4 km/arcsec.
The object has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 16.8 sec chord
Diameter=93.5 km assuming a 30% albedo -- 6.8 sec chord
Dynamical classification is CENTAURR
Star training set for 5145, (2024/10/17 02:05UT) Object RA Dec mag sep mel Antares 16:30:55.9 -26:29:05 0.9 30.36 129 Nunki 18:56:48.1 -26:15:49 2.0 13.65 96 PPM 234686 18:34:08.3 -14:50:44 5.1 1.26 100 PPM 234541 18:28:21.5 -13:50:17 8.3 0.47 102 PPM 234588 18:30:09.8 -14:10:18 9.4 0.09 101 5145 18:29:46.8 -14:09:48 16.0 101 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 9.0 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 | 02:05:19 | -19.1 | Dark | Up | 17.4 | 215.0 | Really Low | 01:50:19 - 02:20:19 | 7441 |
| Kamloops | 02:04:21 | -10.0 | NT | Up | 22.9 | 200.8 | Low | 01:49:21 - 02:19:21 | 7158 |
| Kelowna | 02:04:28 | -10.6 | NT | Up | 23.4 | 201.9 | Low | 01:49:28 - 02:19:28 | 7148 |
| Peachland | 02:04:26 | -10.4 | NT | Up | 23.6 | 201.6 | Low | 01:49:26 - 02:19:26 | 7138 |
| Summerland | 02:04:27 | -10.4 | NT | Up | 23.7 | 201.7 | Low | 01:49:27 - 02:19:27 | 7135 |
| Penticton | 02:04:29 | -10.5 | NT | Up | 23.8 | 201.8 | Low | 01:49:29 - 02:19:29 | 7135 |
| Oliver | 02:04:30 | -10.5 | NT | Up | 24.1 | 201.9 | Low | 01:49:30 - 02:19:30 | 7122 |
| Anarchist Mountain Observatory | 02:04:31 | -10.6 | NT | Up | 24.2 | 202.1 | Low | 01:49:31 - 02:19:31 | 7120 |
| Okanogan | 02:04:33 | -10.5 | NT | Up | 24.8 | 202.0 | Low | 01:49:33 - 02:19:33 | 7091 |
| Brewster | 02:04:31 | -10.3 | NT | Up | 25.1 | 201.8 | Low | 01:49:31 - 02:19:31 | 7077 |
| Manson/Chelan | 02:04:31 | -10.0 | NT | Up | 25.4 | 201.5 | Low | 01:49:31 - 02:19:31 | 7061 |
| Wenatchee | 02:04:32 | -9.9 | NT | Up | 25.9 | 201.4 | Low | 01:49:32 - 02:19:32 | 7039 |
| Dunrhomin | 02:06:20 | -21.3 | Dark | Up | 26.4 | 218.8 | Low | 01:51:20 - 02:21:20 | 7019 |
| Ellensburg | 02:04:31 | -9.7 | NT | Up | 26.4 | 201.2 | Low | 01:49:31 - 02:19:31 | 7018 |
| Victoria | 02:04:12 | -7.9 | NT | Up | 25.6 | 197.9 | Low | 01:49:12 - 02:19:12 | 7014 |
| PNWRO | 02:04:45 | -10.9 | NT | Up | 26.8 | 203.2 | Low | 01:49:45 - 02:19:45 | 7013 |
| Nikitin | 02:06:20 | -21.4 | Dark | Up | 26.6 | 218.9 | Low | 01:51:20 - 02:21:20 | 7010 |
| CU-SBO | 02:06:20 | -21.3 | Dark | Up | 26.7 | 218.8 | Low | 01:51:20 - 02:21:20 | 7006 |
| Yakima | 02:04:34 | -9.7 | NT | Up | 26.7 | 201.3 | Low | 01:49:34 - 02:19:34 | 7001 |
| Toppenish/White Swan | 02:04:36 | -9.8 | NT | Up | 26.9 | 201.5 | Low | 01:49:36 - 02:19:36 | 6995 |
| The Dalles | 02:04:33 | -9.2 | NT | Up | 27.8 | 200.8 | Low | 01:49:33 - 02:19:33 | 6945 |
| Maupin | 02:04:35 | -9.3 | NT | Up | 28.2 | 201.0 | Low | 01:49:35 - 02:19:35 | 6929 |
| Sisters | 02:04:36 | -8.8 | NT | Up | 29.1 | 200.7 | Low | 01:49:36 - 02:19:36 | 6879 |
| Bend | 02:04:38 | -9.0 | NT | Up | 29.3 | 201.0 | Low | 01:49:38 - 02:19:38 | 6875 |
| Oregon Observatory | 02:04:38 | -8.9 | NT | Up | 29.5 | 200.9 | Low | 01:49:38 - 02:19:38 | 6864 |
| Chiloquin | 02:04:41 | -8.5 | NT | Up | 30.8 | 200.7 | Up | 01:49:41 - 02:19:41 | 6792 |
| Cedarville | 02:04:51 | -9.7 | NT | Up | 31.3 | 202.9 | Up | 01:49:51 - 02:19:51 | 6782 |
| Klamath Falls | 02:04:41 | -8.5 | NT | Up | 31.1 | 200.9 | Up | 01:49:41 - 02:19:41 | 6777 |
| Fall River/Burney | 02:04:47 | -8.7 | NT | Up | 32.1 | 201.6 | Up | 01:49:47 - 02:19:47 | 6728 |
| Gimple | 02:04:54 | -9.1 | NT | Up | 32.8 | 202.5 | Up | 01:49:54 - 02:19:54 | 6695 |
| Greenville | 02:04:53 | -9.0 | NT | Up | 32.8 | 202.4 | Up | 01:49:53 - 02:19:53 | 6693 |
| Reno | 02:05:01 | -9.9 | NT | Up | 33.0 | 203.8 | Up | 01:50:01 - 02:20:01 | 6690 |
| Portola | 02:04:58 | -9.4 | NT | Up | 33.0 | 203.0 | Up | 01:49:58 - 02:19:58 | 6688 |
| Quincy | 02:04:53 | -9.0 | NT | Up | 33.0 | 202.4 | Up | 01:49:53 - 02:19:53 | 6682 |
| Yerington | 02:05:07 | -10.4 | NT | Up | 33.3 | 204.7 | Up | 01:50:07 - 02:20:07 | 6677 |
| Carson City | 02:05:04 | -9.9 | NT | Up | 33.3 | 203.9 | Up | 01:50:04 - 02:20:04 | 6672 |
| Hawthorne | 02:05:12 | -10.8 | NT | Up | 33.5 | 205.4 | Up | 01:50:12 - 02:20:12 | 6665 |
| Gardnerville | 02:05:04 | -9.9 | NT | Up | 33.5 | 204.0 | Up | 01:50:04 - 02:20:04 | 6660 |
| Lee Vining | 02:05:11 | -10.3 | NT | Up | 34.2 | 205.0 | Up | 01:50:11 - 02:20:11 | 6623 |
| Beatty | 02:05:29 | -12.2 | AT | Up | 34.3 | 208.0 | Up | 01:50:29 - 02:20:29 | 6620 |
| Bishop | 02:05:19 | -10.9 | NT | Up | 34.5 | 206.0 | Up | 01:50:19 - 02:20:19 | 6607 |
| Patrick | 02:05:52 | -14.6 | AT | Up | 34.4 | 211.7 | Up | 01:50:52 - 02:20:52 | 6603 |
| Laughlin/Bullhead City | 02:05:49 | -14.0 | AT | Up | 34.9 | 211.0 | Up | 01:50:49 - 02:20:49 | 6572 |
| George/Scottsdale | 02:06:11 | -16.3 | AT | Up | 34.9 | 214.5 | Up | 01:51:11 - 02:21:11 | 6548 |
| Lake Havasu City | 02:05:54 | -14.2 | AT | Up | 35.4 | 211.6 | Up | 01:50:54 - 02:20:54 | 6539 |
| Idyllwild | 02:05:43 | -12.1 | AT | Up | 37.0 | 209.2 | Up | 01:50:43 - 02:20:43 | 6438 |
| Calipatria | 02:05:50 | -13.1 | AT | Up | 37.0 | 210.8 | Up | 01:50:50 - 02:20:50 | 6429 |
| Yuma | 02:05:58 | -13.9 | AT | Up | 37.0 | 212.0 | Up | 01:50:58 - 02:20:58 | 6423 |
| Wildwood | 02:05:27 | -10.5 | NT | Up | 37.5 | 206.9 | Up | 01:50:27 - 02:20:27 | 6412 |
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 5145, (2024/10/17 02:05UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 30.36 129 Nunki 18:55:15.9 -26:17:49 2.0 13.65 96 PPM 234686 18:32:43.3 -14:51:57 5.1 1.26 100 PPM 234541 18:26:57.2 -13:51:17 8.3 0.47 102 PPM 234588 18:28:45.2 -14:11:22 9.4 0.09 101 5145 18:28:22.3 -14:10:51 16.0 101 Positions are for J2000
Event circumstances last updated at 2024/06/11 03:51:11 UT
Marc W. Buie, Southwest Research Institute