Event between (55636) 02TX300 and star GA1280:00490173 with event index number of 1395682
Geocentric closest approach at 2025/07/10 09:06:18 UTC
J2000 position of star is 02:06:26.7 +39:35:13
Equinox of date position of star is 02:07:55.2 +39:42:05
Stellar brightness G=14.3,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 120 degrees from the moon.
Moon is 100% illuminated.
Apparent brightness V=20.0
[RECON map]
Object is 43.4 AU from the Sun
and 43.8 AU from the Earth.
Apparent velocity is 20.6
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 84 seconds.
The 1-sigma cross-track error in the shadow position is
1770 km.
The sky-plane scale is
31754.3 km/arcsec.
The object has an absolute magnitude Hv=3.5
Diameter=1169.5 km assuming a 5% albedo -- 58.1 sec chord
Diameter=477.5 km assuming a 30% albedo -- 23.7 sec chord
Dynamical classification is SCATEXTD
Star training set for 55636, (2025/07/10 09:07UT) Object RA Dec mag sep mel Aldebaran 04:37:23.3 +16:33:31 0.8 39.80 146 57Gam1And 02:05:28.6 +42:27:04 2.3 2.78 120 59 And 02:12:26.4 +39:09:31 6.0 1.02 121 PPM 066947 02:07:19.5 +39:52:51 7.6 0.22 120 PPM 066949 02:07:21.1 +39:39:49 10.0 0.13 120 55636 02:08:00.1 +39:42:28 14.3 120 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 5.9 km
RECON observability=1.0 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) |
| Wildwood | 09:05:38 | -31.6 | Dark | Up | 24.2 | 57.4 | Low | 08:58:09 - 09:13:07 | 8558 |
| Quincy | 09:06:09 | -26.5 | Dark | Up | 25.8 | 58.8 | Low | 08:58:40 - 09:13:38 | 8545 |
| Greenville | 09:06:10 | -26.3 | Dark | Up | 25.9 | 58.9 | Low | 08:58:41 - 09:13:39 | 8540 |
| Gimple | 09:06:11 | -26.3 | Dark | Up | 26.0 | 58.9 | Low | 08:58:42 - 09:13:40 | 8538 |
| Fall River/Burney | 09:06:15 | -25.5 | Dark | Up | 26.1 | 59.0 | Low | 08:58:46 - 09:13:44 | 8533 |
| Portola | 09:06:07 | -26.5 | Dark | Up | 26.0 | 58.9 | Low | 08:58:38 - 09:13:36 | 8532 |
| Gardnerville | 09:06:03 | -27.2 | Dark | Up | 26.1 | 58.9 | Low | 08:58:34 - 09:13:32 | 8526 |
| Lee Vining | 09:05:57 | -28.0 | Dark | Up | 25.9 | 58.7 | Low | 08:58:28 - 09:13:26 | 8523 |
| Carson City | 09:06:03 | -27.0 | Dark | Up | 26.1 | 59.0 | Low | 08:58:34 - 09:13:32 | 8522 |
| Reno | 09:06:05 | -26.6 | Dark | Up | 26.3 | 59.1 | Low | 08:58:36 - 09:13:34 | 8516 |
| Klamath Falls | 09:06:21 | -24.4 | Dark | Up | 26.5 | 59.4 | Low | 08:58:52 - 09:13:50 | 8516 |
| Chiloquin | 09:06:23 | -24.1 | Dark | Up | 26.6 | 59.5 | Low | 08:58:54 - 09:13:52 | 8509 |
| Bishop | 09:05:52 | -28.4 | Dark | Up | 26.1 | 58.8 | Low | 08:58:23 - 09:13:21 | 8506 |
| Yerington | 09:06:02 | -27.0 | Dark | Up | 26.5 | 59.1 | Low | 08:58:33 - 09:13:31 | 8504 |
| Hawthorne | 09:05:58 | -27.4 | Dark | Up | 26.6 | 59.2 | Low | 08:58:29 - 09:13:27 | 8494 |
| Idyllwild | 09:05:32 | -31.4 | Dark | Up | 25.3 | 57.9 | Low | 08:58:03 - 09:13:01 | 8488 |
| Cedarville | 09:06:15 | -24.8 | Dark | Up | 27.1 | 59.8 | Low | 08:58:46 - 09:13:44 | 8482 |
| Oregon Observatory | 09:06:27 | -22.7 | Dark | Up | 27.5 | 60.3 | Low | 08:58:58 - 09:13:56 | 8459 |
| Sisters | 09:06:30 | -22.4 | Dark | Up | 27.7 | 60.4 | Low | 08:59:01 - 09:13:59 | 8450 |
| Beatty | 09:05:47 | -28.4 | Dark | Up | 27.0 | 59.2 | Low | 08:58:18 - 09:13:16 | 8450 |
| Bend | 09:06:28 | -22.5 | Dark | Up | 27.7 | 60.4 | Low | 08:58:59 - 09:13:57 | 8450 |
| Calipatria | 09:05:27 | -31.7 | Dark | Up | 25.8 | 58.0 | Low | 08:57:58 - 09:12:56 | 8443 |
| Maupin | 09:06:33 | -21.4 | Dark | Up | 28.4 | 61.1 | Low | 08:59:04 - 09:14:02 | 8408 |
| Yuma | 09:05:23 | -31.8 | Dark | Up | 26.2 | 58.1 | Low | 08:57:54 - 09:12:52 | 8407 |
| The Dalles | 09:06:35 | -21.0 | Dark | Up | 28.5 | 61.2 | Low | 08:59:06 - 09:14:04 | 8398 |
| Laughlin/Bullhead City | 09:05:34 | -29.5 | Dark | Up | 27.6 | 59.2 | Low | 08:58:05 - 09:13:03 | 8383 |
| Lake Havasu City | 09:05:31 | -30.0 | Dark | Up | 27.4 | 59.0 | Low | 08:58:02 - 09:13:00 | 8379 |
| Victoria | 09:06:52 | -18.5 | Dark | Up | 28.7 | 61.4 | Low | 08:59:23 - 09:14:21 | 8357 |
| Patrick | 09:05:36 | -29.0 | Dark | Up | 28.2 | 59.6 | Low | 08:58:07 - 09:13:05 | 8350 |
| Toppenish/White Swan | 09:06:37 | -20.1 | Dark | Up | 29.4 | 62.0 | Low | 08:59:08 - 09:14:06 | 8349 |
| Yakima | 09:06:38 | -20.0 | Dark | Up | 29.4 | 62.1 | Low | 08:59:09 - 09:14:07 | 8347 |
| Ellensburg | 09:06:41 | -19.6 | Dark | Up | 29.6 | 62.3 | Low | 08:59:12 - 09:14:10 | 8333 |
| PNWRO | 09:06:33 | -20.2 | Dark | Up | 30.1 | 62.6 | Up | 08:59:04 - 09:14:02 | 8314 |
| Wenatchee | 09:06:42 | -19.1 | Dark | Up | 29.9 | 62.6 | Low | 08:59:13 - 09:14:11 | 8312 |
| Manson/Chelan | 09:06:43 | -18.6 | Dark | Up | 30.3 | 62.9 | Up | 08:59:14 - 09:14:12 | 8290 |
| George/Scottsdale | 09:05:23 | -29.9 | Dark | Up | 28.7 | 59.5 | Low | 08:57:54 - 09:12:52 | 8274 |
| Brewster | 09:06:44 | -18.4 | Dark | Up | 30.6 | 63.3 | Up | 08:59:15 - 09:14:13 | 8271 |
| Okanogan | 09:06:45 | -18.1 | Dark | Up | 30.8 | 63.5 | Up | 08:59:16 - 09:14:14 | 8256 |
| Anarchist Mountain Observatory | 09:06:48 | -17.4 | AT | Up | 31.2 | 64.0 | Up | 08:59:19 - 09:14:17 | 8226 |
| Oliver | 09:06:49 | -17.3 | AT | Up | 31.2 | 64.0 | Up | 08:59:20 - 09:14:18 | 8225 |
| Summerland | 09:06:51 | -16.9 | AT | Up | 31.3 | 64.2 | Up | 08:59:22 - 09:14:20 | 8213 |
| Penticton | 09:06:50 | -16.9 | AT | Up | 31.4 | 64.2 | Up | 08:59:21 - 09:14:19 | 8212 |
| Peachland | 09:06:51 | -16.8 | AT | Up | 31.3 | 64.2 | Up | 08:59:22 - 09:14:20 | 8210 |
| Kelowna | 09:06:52 | -16.6 | AT | Up | 31.6 | 64.4 | Up | 08:59:23 - 09:14:21 | 8197 |
| Kamloops | 09:06:57 | -16.0 | AT | Up | 31.4 | 64.4 | Up | 08:59:28 - 09:14:26 | 8191 |
| CU-SBO | 09:05:43 | -21.9 | Dark | Up | 36.4 | 65.5 | Up | 08:58:14 - 09:13:12 | 7889 |
| Nikitin | 09:05:43 | -21.8 | Dark | Up | 36.5 | 65.6 | Up | 08:58:14 - 09:13:12 | 7884 |
| Dunrhomin | 09:05:44 | -21.6 | Dark | Up | 36.5 | 65.7 | Up | 08:58:15 - 09:13:13 | 7880 |
| Sleaford | 09:06:44 | -11.4 | NT | Up | 40.3 | 74.3 | Up | 08:59:15 - 09:14:13 | 7645 |
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 55636, (2025/07/10 09:07UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 39.80 146 57Gam1And 02:03:54.0 +42:19:46 2.3 2.78 120 59 And 02:10:52.9 +39:02:22 6.0 1.02 121 PPM 066947 02:05:46.1 +39:45:35 7.6 0.22 120 PPM 066949 02:05:47.8 +39:32:34 10.0 0.13 120 55636 02:06:26.7 +39:35:13 14.3 120 Positions are for J2000
Event circumstances last updated at 2024/03/02 06:30:19 UT
Marc W. Buie, Southwest Research Institute