Event between (342842) 08YB3 and star GA1120:13305893 with event index number of 2205502
Geocentric closest approach at 2027/05/17 06:22:15 UTC
J2000 position of star is 20:07:32.5 +23:26:21
Equinox of date position of star is 20:08:35.0 +23:30:38
Stellar brightness G=12.8,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 110 degrees from the moon.
Moon is 89% illuminated.
Apparent brightness V=21.9
[RECON map]
Object is 16.3 AU from the Sun
and 16.1 AU from the Earth.
Apparent velocity is 17.0
km/sec on the sky relative to the star, or,
5.2 arcsec/hr.
The 1-sigma error in the time of the event is 87 seconds.
The 1-sigma cross-track error in the shadow position is
1684 km.
The sky-plane scale is
11666.7 km/arcsec.
The object has an absolute magnitude Hv=9.5
Diameter=82.8 km assuming a 5% albedo -- 4.5 sec chord
Diameter=33.8 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
Star training set for 342842, (2027/05/17 06:22UT) Object RA Dec mag sep mel Deneb 20:42:22.0 +45:22:45 1.3 22.90 116 53Eps Cyg 20:47:19.1 +34:04:25 2.5 13.51 118 17 Vul 20:08:04.0 +23:41:42 5.1 0.23 110 PPM 110502 20:10:08.1 +23:29:48 7.8 0.33 110 PPM 110467 20:09:18.2 +23:20:44 9.8 0.22 110 PPM 110436 20:08:12.2 +23:32:27 11.0 0.12 110 342842 20:08:43.3 +23:31:12 12.8 110 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 20.0 km
RECON observability=0.1 and success probability=23.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 06:28:08 | -17.3 | AT | Up | 17.6 | 74.3 | Really Low | 06:20:23 - 06:35:53 | 473 |
| Sleaford | 06:27:46 | -18.3 | Dark | Up | 26.7 | 85.4 | Low | 06:20:01 - 06:35:31 | 390 |
| Kelowna | 06:28:08 | -18.3 | Dark | Up | 18.0 | 74.7 | Really Low | 06:20:23 - 06:35:53 | 368 |
| Peachland | 06:28:09 | -18.3 | Dark | Up | 17.7 | 74.4 | Really Low | 06:20:24 - 06:35:54 | 363 |
| Summerland | 06:28:09 | -18.5 | Dark | Up | 17.8 | 74.5 | Really Low | 06:20:24 - 06:35:54 | 345 |
| Penticton | 06:28:09 | -18.6 | Dark | Up | 17.8 | 74.5 | Really Low | 06:20:24 - 06:35:54 | 336 |
| Victoria | 06:28:14 | -18.5 | Dark | Up | 15.1 | 71.5 | Really Low | 06:20:29 - 06:35:59 | 322 |
| Oliver | 06:28:09 | -18.9 | Dark | Up | 17.7 | 74.4 | Really Low | 06:20:24 - 06:35:54 | 299 |
| Anarchist Mountain Observatory | 06:28:09 | -19.1 | Dark | Up | 17.8 | 74.5 | Really Low | 06:20:24 - 06:35:54 | 277 |
| Okanogan | 06:28:10 | -19.6 | Dark | Up | 17.5 | 74.1 | Really Low | 06:20:25 - 06:35:55 | 214 |
| Brewster | 06:28:11 | -19.8 | Dark | Up | 17.3 | 73.9 | Really Low | 06:20:26 - 06:35:56 | 190 |
| Manson/Chelan | 06:28:11 | -19.9 | Dark | Up | 17.0 | 73.6 | Really Low | 06:20:26 - 06:35:56 | 176 |
| Wenatchee | 06:28:12 | -20.3 | Dark | Up | 16.8 | 73.4 | Really Low | 06:20:27 - 06:35:57 | 130 |
| Ellensburg | 06:28:13 | -20.7 | Dark | Up | 16.5 | 73.1 | Really Low | 06:20:28 - 06:35:58 | 92 |
| Yakima | 06:28:13 | -21.0 | Dark | Up | 16.4 | 73.0 | Really Low | 06:20:28 - 06:35:58 | 50 |
| Toppenish/White Swan | 06:28:13 | -21.3 | Dark | Up | 16.4 | 73.0 | Really Low | 06:20:28 - 06:35:58 | 23 |
| The Dalles | 06:28:15 | -21.8 | Dark | Up | 15.7 | 72.3 | Really Low | 06:20:30 - 06:36:00 | -39 |
| PNWRO | 06:28:12 | -22.0 | Dark | Up | 17.3 | 73.9 | Really Low | 06:20:27 - 06:35:57 | -52 |
| Maupin | 06:28:15 | -22.2 | Dark | Up | 15.6 | 72.2 | Really Low | 06:20:30 - 06:36:00 | -86 |
| Sisters | 06:28:16 | -22.8 | Dark | Up | 15.0 | 71.7 | Really Low | 06:20:31 - 06:36:01 | -165 |
| Bend | 06:28:16 | -23.1 | Dark | Up | 15.1 | 71.8 | Really Low | 06:20:31 - 06:36:01 | -197 |
| Oregon Observatory | 06:28:17 | -23.3 | Dark | Up | 15.0 | 71.7 | Really Low | 06:20:32 - 06:36:02 | -212 |
| Chiloquin | 06:28:18 | -24.3 | Dark | Up | 14.3 | 71.1 | Really Low | 06:20:33 - 06:36:03 | -339 |
| Klamath Falls | 06:28:18 | -24.7 | Dark | Up | 14.2 | 71.1 | Really Low | 06:20:33 - 06:36:03 | -377 |
| Cedarville | 06:28:17 | -25.8 | Dark | Up | 15.1 | 71.9 | Really Low | 06:20:32 - 06:36:02 | -493 |
| Fall River/Burney | 06:28:18 | -25.9 | Dark | Up | 14.1 | 71.0 | Really Low | 06:20:33 - 06:36:03 | -511 |
| Greenville | 06:28:18 | -26.8 | Dark | Up | 14.1 | 71.1 | Really Low | 06:20:33 - 06:36:03 | -619 |
| Gimple | 06:28:18 | -26.9 | Dark | Up | 14.2 | 71.1 | Really Low | 06:20:33 - 06:36:03 | -622 |
| Quincy | 06:28:18 | -27.0 | Dark | Up | 14.1 | 71.0 | Really Low | 06:20:33 - 06:36:03 | -640 |
| Portola | 06:28:17 | -27.3 | Dark | Up | 14.4 | 71.3 | Really Low | 06:20:32 - 06:36:02 | -667 |
| Reno | 06:28:17 | -27.7 | Dark | Up | 14.7 | 71.6 | Really Low | 06:20:32 - 06:36:02 | -712 |
| Carson City | 06:28:17 | -28.1 | Dark | Up | 14.6 | 71.5 | Really Low | 06:20:32 - 06:36:02 | -751 |
| Gardnerville | 06:28:17 | -28.3 | Dark | Up | 14.6 | 71.5 | Really Low | 06:20:32 - 06:36:02 | -778 |
| Yerington | 06:28:16 | -28.4 | Dark | Up | 15.1 | 71.8 | Really Low | 06:20:31 - 06:36:01 | -788 |
| Hawthorne | 06:28:16 | -29.0 | Dark | Up | 15.3 | 72.0 | Really Low | 06:20:31 - 06:36:01 | -851 |
| Lee Vining | 06:28:16 | -29.4 | Dark | Up | 14.8 | 71.6 | Really Low | 06:20:31 - 06:36:01 | -898 |
| Dunrhomin | 06:27:51 | -30.1 | Dark | Up | 25.7 | 80.2 | Low | 06:20:06 - 06:35:36 | -917 |
| Nikitin | 06:27:51 | -30.2 | Dark | Up | 25.7 | 80.1 | Low | 06:20:06 - 06:35:36 | -937 |
| CU-SBO | 06:27:51 | -30.3 | Dark | Up | 25.6 | 80.0 | Low | 06:20:06 - 06:35:36 | -943 |
| Bishop | 06:28:15 | -30.2 | Dark | Up | 15.1 | 71.8 | Really Low | 06:20:30 - 06:36:00 | -980 |
| Beatty | 06:28:13 | -31.1 | Dark | Up | 16.2 | 72.6 | Really Low | 06:20:28 - 06:35:58 | -1070 |
| Patrick | 06:28:08 | -33.2 | Dark | Up | 18.0 | 73.6 | Really Low | 06:20:23 - 06:35:53 | -1295 |
| Laughlin/Bullhead City | 06:28:09 | -33.3 | Dark | Up | 17.4 | 73.2 | Really Low | 06:20:24 - 06:35:54 | -1305 |
| Wildwood | 06:28:14 | -33.1 | Dark | Up | 13.9 | 70.9 | Really Low | 06:20:29 - 06:35:59 | -1319 |
| Lake Havasu City | 06:28:08 | -34.0 | Dark | Up | 17.4 | 73.1 | Really Low | 06:20:23 - 06:35:53 | -1383 |
| Idyllwild | 06:28:12 | -34.0 | Dark | Up | 15.3 | 71.7 | Really Low | 06:20:27 - 06:35:57 | -1406 |
| Calipatria | 06:28:09 | -35.0 | Dark | Up | 16.0 | 72.1 | Really Low | 06:20:24 - 06:35:54 | -1499 |
| George/Scottsdale | 06:28:03 | -35.4 | Dark | Up | 19.1 | 74.0 | Really Low | 06:20:18 - 06:35:48 | -1518 |
| Yuma | 06:28:07 | -35.6 | Dark | Up | 16.6 | 72.4 | Really Low | 06:20:22 - 06:35:52 | -1566 |
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, (2027/05/17 06:22UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 22.90 116 53Eps Cyg 20:46:13.3 +33:58:20 2.5 13.51 118 17 Vul 20:06:53.4 +23:36:52 5.1 0.23 110 PPM 110502 20:08:57.4 +23:24:54 7.8 0.33 110 PPM 110467 20:08:07.3 +23:15:52 9.8 0.22 110 PPM 110436 20:07:01.5 +23:27:37 11.0 0.12 110 342842 20:07:32.5 +23:26:21 12.8 110 Positions are for J2000
Event circumstances last updated at 2024/03/06 04:22:27 UT
Marc W. Buie, Southwest Research Institute