Event between (342842) 08YB3 and star GA1140:10556056 with event index number of 2205097
Geocentric closest approach at 2026/10/04 03:06:46 UTC
J2000 position of star is 19:40:13.6 +24:36:15
Equinox of date position of star is 19:41:14.6 +24:39:42
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 130 degrees from the moon.
Moon is 44% illuminated.
Apparent brightness V=21.9
[RECON map]
Object is 16.2 AU from the Sun
and 15.9 AU from the Earth.
Apparent velocity is 28.0
km/sec on the sky relative to the star, or,
8.8 arcsec/hr.
The 1-sigma error in the time of the event is 71 seconds.
The 1-sigma cross-track error in the shadow position is
759 km.
The sky-plane scale is
11502.1 km/arcsec.
The object has an absolute magnitude Hv=9.5
Diameter=82.8 km assuming a 5% albedo -- 2.8 sec chord
Diameter=33.8 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
Star training set for 342842, (2026/10/04 03:10UT) Object RA Dec mag sep mel Vega 18:37:50.6 +38:48:34 0.0 19.49 115 Tarazed 19:47:31.9 +10:40:49 2.7 14.06 143 10 Vul 19:44:49.7 +25:50:15 5.5 1.41 128 PPM 109489 19:41:55.0 +24:38:18 8.1 0.13 130 PPM 109443 19:40:51.3 +24:38:29 9.9 0.12 130 342842 19:41:21.1 +24:40:04 16.3 130 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 11.2 km
RECON observability=1.0 and success probability=22.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 03:05:17 | -13.6 | AT | Down | 66.1 | 181.5 | Up | 02:58:50 - 03:11:44 | -379 |
| Kamloops | 03:05:08 | -15.1 | AT | Down | 63.8 | 187.6 | Up | 02:58:41 - 03:11:35 | -536 |
| Peachland | 03:05:10 | -15.7 | AT | Down | 64.6 | 189.2 | Up | 02:58:43 - 03:11:37 | -604 |
| Summerland | 03:05:11 | -15.8 | AT | Down | 64.8 | 189.4 | Up | 02:58:44 - 03:11:38 | -615 |
| The Dalles | 03:05:26 | -15.6 | AT | Down | 68.9 | 187.4 | Up | 02:58:59 - 03:11:53 | -619 |
| Kelowna | 03:05:10 | -15.9 | AT | Down | 64.5 | 189.7 | Up | 02:58:43 - 03:11:37 | -621 |
| Penticton | 03:05:11 | -15.9 | AT | Down | 64.8 | 189.7 | Up | 02:58:44 - 03:11:38 | -625 |
| Sisters | 03:05:31 | -15.6 | AT | Down | 70.2 | 186.9 | Up | 02:59:04 - 03:11:58 | -626 |
| Ellensburg | 03:05:20 | -15.8 | AT | Down | 67.4 | 188.5 | Up | 02:58:53 - 03:11:47 | -627 |
| Manson/Chelan | 03:05:17 | -15.8 | AT | Down | 66.5 | 189.0 | Up | 02:58:50 - 03:11:44 | -630 |
| Wenatchee | 03:05:19 | -15.8 | AT | Down | 67.0 | 188.8 | Up | 02:58:52 - 03:11:46 | -632 |
| Oliver | 03:05:12 | -16.0 | AT | Down | 65.2 | 189.8 | Up | 02:58:45 - 03:11:39 | -635 |
| Yakima | 03:05:22 | -15.8 | AT | Down | 67.8 | 188.6 | Up | 02:58:55 - 03:11:49 | -638 |
| Maupin | 03:05:27 | -15.8 | AT | Down | 69.3 | 187.9 | Up | 02:59:00 - 03:11:54 | -639 |
| Oregon Observatory | 03:05:32 | -15.7 | AT | Down | 70.6 | 187.4 | Up | 02:59:05 - 03:11:59 | -647 |
| Chiloquin | 03:05:37 | -15.6 | AT | Down | 71.9 | 186.8 | Up | 02:59:10 - 03:12:04 | -650 |
| Brewster | 03:05:16 | -16.0 | AT | Down | 66.3 | 189.8 | Up | 02:58:49 - 03:11:43 | -651 |
| Bend | 03:05:32 | -15.8 | AT | Down | 70.4 | 187.7 | Up | 02:59:05 - 03:11:59 | -652 |
| Anarchist Mountain Observatory | 03:05:13 | -16.1 | AT | Down | 65.3 | 190.3 | Up | 02:58:46 - 03:11:40 | -654 |
| Toppenish/White Swan | 03:05:22 | -16.0 | AT | Down | 68.0 | 189.1 | Up | 02:58:55 - 03:11:49 | -657 |
| Okanogan | 03:05:15 | -16.1 | AT | Down | 66.0 | 190.1 | Up | 02:58:48 - 03:11:42 | -657 |
| Klamath Falls | 03:05:38 | -15.8 | AT | Down | 72.3 | 187.2 | Up | 02:59:11 - 03:12:05 | -666 |
| Fall River/Burney | 03:05:42 | -16.2 | AT | Down | 73.4 | 188.9 | Up | 02:59:15 - 03:12:09 | -730 |
| PNWRO | 03:05:23 | -17.1 | AT | Down | 68.2 | 192.9 | Up | 02:58:56 - 03:11:50 | -779 |
| Greenville | 03:05:45 | -16.7 | AT | Down | 74.2 | 191.0 | Up | 02:59:18 - 03:12:12 | -792 |
| Quincy | 03:05:46 | -16.8 | AT | Down | 74.4 | 191.1 | Up | 02:59:19 - 03:12:13 | -799 |
| Gimple | 03:05:45 | -16.8 | AT | Down | 74.2 | 191.2 | Up | 02:59:18 - 03:12:12 | -799 |
| Cedarville | 03:05:39 | -17.1 | AT | Down | 72.8 | 192.4 | Up | 02:59:12 - 03:12:06 | -815 |
| Portola | 03:05:46 | -17.1 | AT | Down | 74.5 | 192.8 | Up | 02:59:19 - 03:12:13 | -842 |
| Reno | 03:05:47 | -17.7 | AT | Down | 74.6 | 195.2 | Up | 02:59:20 - 03:12:14 | -903 |
| Carson City | 03:05:48 | -17.8 | AT | Down | 74.9 | 195.7 | Up | 02:59:21 - 03:12:15 | -916 |
| Gardnerville | 03:05:49 | -17.8 | AT | Down | 75.2 | 196.1 | Up | 02:59:22 - 03:12:16 | -928 |
| Yerington | 03:05:48 | -18.3 | Dark | Down | 75.0 | 198.0 | Up | 02:59:21 - 03:12:15 | -975 |
| Lee Vining | 03:05:52 | -18.5 | Dark | Down | 76.0 | 199.5 | Up | 02:59:25 - 03:12:19 | -1010 |
| Hawthorne | 03:05:49 | -18.8 | Dark | Down | 75.3 | 200.4 | Up | 02:59:22 - 03:12:16 | -1034 |
| Bishop | 03:05:53 | -19.2 | Dark | Down | 76.3 | 203.0 | Up | 02:59:26 - 03:12:20 | -1091 |
| Wildwood | 03:06:06 | -19.5 | Dark | Down | 79.3 | 209.1 | Up | 02:59:39 - 03:12:33 | -1176 |
| Beatty | 03:05:54 | -20.5 | Dark | Down | 76.1 | 209.6 | Up | 02:59:27 - 03:12:21 | -1245 |
| Idyllwild | 03:06:05 | -21.1 | Dark | Down | 78.7 | 217.9 | Up | 02:59:38 - 03:12:32 | -1355 |
| Sleaford | 03:04:52 | -23.2 | Dark | Down | 59.3 | 213.5 | Up | 02:58:25 - 03:11:19 | -1423 |
| Calipatria | 03:06:06 | -22.2 | Dark | Down | 78.5 | 224.2 | Up | 02:59:39 - 03:12:33 | -1480 |
| Laughlin/Bullhead City | 03:05:58 | -22.6 | Dark | Down | 76.5 | 221.0 | Up | 02:59:31 - 03:12:25 | -1491 |
| Lake Havasu City | 03:06:00 | -22.9 | Dark | Down | 76.9 | 223.8 | Up | 02:59:33 - 03:12:27 | -1537 |
| Patrick | 03:05:57 | -23.1 | Dark | Down | 76.0 | 222.5 | Up | 02:59:30 - 03:12:24 | -1543 |
| Yuma | 03:06:07 | -23.0 | Dark | Down | 78.3 | 228.8 | Up | 02:59:40 - 03:12:34 | -1574 |
| George/Scottsdale | 03:06:00 | -25.1 | Dark | Down | 75.9 | 233.2 | Up | 02:59:33 - 03:12:27 | -1779 |
| Dunrhomin | 03:05:30 | -28.3 | Dark | Down | 67.7 | 231.2 | Up | 02:59:03 - 03:11:57 | -2043 |
| CU-SBO | 03:05:31 | -28.3 | Dark | Down | 67.9 | 231.5 | Up | 02:59:04 - 03:11:58 | -2047 |
| Nikitin | 03:05:31 | -28.4 | Dark | Down | 67.8 | 231.5 | Up | 02:59:04 - 03:11:58 | -2051 |
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 342842, (2026/10/04 03:10UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 19.49 115 Tarazed 19:46:15.6 +10:36:48 2.7 14.06 143 10 Vul 19:43:42.9 +25:46:19 5.5 1.41 128 PPM 109489 19:40:47.5 +24:34:29 8.1 0.13 130 PPM 109443 19:39:43.8 +24:34:42 9.9 0.12 130 342842 19:40:13.6 +24:36:15 16.3 130 Positions are for J2000
Event circumstances last updated at 2024/03/05 04:40:32 UT
Marc W. Buie, Southwest Research Institute