Event between 08KV42 and star GA1440:04935702 with event index number of 1196637
Geocentric closest approach at 2023/02/11 12:34:22 UTC
J2000 position of star is 16:28:07.6 +55:36:41
Equinox of date position of star is 16:28:32.2 +55:34:11
Stellar brightness G=17.0,
use SENSEUP=128
Star is 74 degrees from the moon.
Moon is 72% illuminated.
TNO apparent brightness V=22.7
[RECON map]
TNO is 24.2 AU from the Sun
and 24.1 AU from the Earth.
The TNO is moving 35.3
km/sec on the sky relative to the star, or,
7.3 arcsec/hr.
The 1-sigma error in the time of the event is 58 seconds.
The 1-sigma cross-track error in the shadow position is
1013 km.
The sky-plane scale is
17501.6 km/arcsec.
The TNO has an absolute magnitude Hv=8.6
Diameter=107.2 km assuming a 5% albedo -- 3.2 sec chord
Diameter=43.7 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
Star training set for 08KV42, (2023/02/11 12:34UT) Object RA Dec mag sep mel Vega 18:37:43.2 +38:48:22 0.0 27.20 84 23Bet Dra 17:30:57.4 +52:17:06 2.8 9.72 79 PPM 035560 16:38:28.6 +55:58:15 5.3 1.45 75 PPM 035447 16:24:47.7 +55:16:41 7.5 0.61 73 PPM 035490 16:29:50.0 +55:30:27 10.3 0.18 74 08KV42 16:28:37.1 +55:33:41 17.0 74 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 4.8 km
RECON observability=1.0 and success probability=28.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| CPSLO | 12:33:28 | -29.0 | Dark | Up | 57.1 | 39.9 | Up | 12:28:07 - 12:38:48 | 1661 |
| Fall River/Burney | 12:33:45 | -29.0 | Dark | Up | 61.0 | 46.7 | Up | 12:28:24 - 12:39:05 | 1582 |
| Klamath Falls | 12:33:48 | -29.2 | Dark | Up | 61.6 | 48.4 | Up | 12:28:27 - 12:39:08 | 1578 |
| Quincy | 12:33:41 | -28.8 | Dark | Up | 60.4 | 45.1 | Up | 12:28:21 - 12:39:02 | 1577 |
| Chiloquin | 12:33:49 | -29.2 | Dark | Up | 61.8 | 48.9 | Up | 12:28:29 - 12:39:10 | 1574 |
| Greenville | 12:33:42 | -28.8 | Dark | Up | 60.6 | 45.4 | Up | 12:28:21 - 12:39:02 | 1573 |
| Gimple | 12:33:41 | -28.8 | Dark | Up | 60.6 | 45.4 | Up | 12:28:21 - 12:39:02 | 1566 |
| Tulelake | 12:33:47 | -29.0 | Dark | Up | 61.6 | 47.9 | Up | 12:28:27 - 12:39:08 | 1564 |
| Portola | 12:33:40 | -28.5 | Dark | Up | 60.6 | 44.8 | Up | 12:28:19 - 12:39:00 | 1545 |
| Susanville | 12:33:42 | -28.6 | Dark | Up | 60.9 | 45.6 | Up | 12:28:21 - 12:39:02 | 1544 |
| Wildwood | 12:33:23 | -27.4 | Dark | Up | 57.3 | 37.8 | Up | 12:28:02 - 12:38:43 | 1518 |
| La Pine/Gilchrist | 12:33:52 | -28.8 | Dark | Up | 62.7 | 50.4 | Up | 12:28:32 - 12:39:13 | 1518 |
| Gardnerville | 12:33:37 | -28.0 | Dark | Up | 60.4 | 43.5 | Up | 12:28:17 - 12:38:58 | 1511 |
| Carson City | 12:33:38 | -28.0 | Dark | Up | 60.5 | 43.8 | Up | 12:28:17 - 12:38:58 | 1509 |
| Oregon Observatory | 12:33:53 | -28.7 | Dark | Up | 62.8 | 50.7 | Up | 12:28:32 - 12:39:13 | 1508 |
| Sisters | 12:33:54 | -28.7 | Dark | Up | 63.0 | 51.3 | Up | 12:28:34 - 12:39:15 | 1505 |
| Reno | 12:33:39 | -28.0 | Dark | Up | 60.8 | 44.3 | Up | 12:28:18 - 12:38:59 | 1502 |
| Bend | 12:33:53 | -28.6 | Dark | Up | 63.0 | 50.9 | Up | 12:28:33 - 12:39:14 | 1493 |
| North Lake | 12:33:51 | -28.4 | Dark | Up | 62.7 | 49.6 | Up | 12:28:30 - 12:39:11 | 1487 |
| Lee Vining | 12:33:34 | -27.6 | Dark | Up | 60.0 | 42.1 | Up | 12:28:13 - 12:38:54 | 1484 |
| Cedarville | 12:33:45 | -28.1 | Dark | Up | 62.0 | 47.0 | Up | 12:28:24 - 12:39:05 | 1480 |
| Redmond | 12:33:53 | -28.4 | Dark | Up | 63.2 | 51.2 | Up | 12:28:33 - 12:39:14 | 1478 |
| Paisley | 12:33:48 | -28.2 | Dark | Up | 62.6 | 48.7 | Up | 12:28:28 - 12:39:09 | 1477 |
| Lakeview | 12:33:47 | -28.1 | Dark | Up | 62.3 | 47.9 | Up | 12:28:27 - 12:39:08 | 1476 |
| Yerington | 12:33:37 | -27.6 | Dark | Up | 60.7 | 43.4 | Up | 12:28:16 - 12:38:57 | 1465 |
| Madras/Culver | 12:33:55 | -28.3 | Dark | Up | 63.5 | 51.8 | Up | 12:28:34 - 12:39:15 | 1464 |
| Maupin | 12:33:56 | -28.2 | Dark | Up | 63.9 | 52.6 | Up | 12:28:36 - 12:39:17 | 1445 |
| The Dalles | 12:33:58 | -28.2 | Dark | Up | 64.1 | 53.3 | Up | 12:28:37 - 12:39:18 | 1440 |
| Bishop | 12:33:32 | -27.1 | Dark | Up | 59.9 | 41.1 | Up | 12:28:11 - 12:38:52 | 1440 |
| Hawthorne | 12:33:35 | -27.2 | Dark | Up | 60.7 | 42.6 | Up | 12:28:15 - 12:38:56 | 1434 |
| Lone Pine | 12:33:29 | -26.8 | Dark | Up | 59.5 | 40.1 | Up | 12:28:09 - 12:38:50 | 1428 |
| Goldendale | 12:33:58 | -27.9 | Dark | Up | 64.4 | 53.7 | Up | 12:28:37 - 12:39:18 | 1408 |
| Yakima | 12:34:00 | -27.6 | Dark | Up | 65.0 | 54.9 | Up | 12:28:39 - 12:39:20 | 1368 |
| Idyllwild | 12:33:20 | -25.8 | Dark | Up | 57.9 | 36.6 | Up | 12:28:00 - 12:38:41 | 1368 |
| Toppenish/White Swan | 12:33:59 | -27.6 | Dark | Up | 65.0 | 54.5 | Up | 12:28:38 - 12:39:19 | 1363 |
| Ellensburg | 12:34:01 | -27.6 | Dark | Up | 65.2 | 55.7 | Up | 12:28:40 - 12:39:21 | 1355 |
| Tonopah | 12:33:33 | -26.1 | Dark | Up | 61.0 | 41.4 | Up | 12:28:12 - 12:38:53 | 1333 |
| Wenatchee | 12:34:02 | -27.4 | Dark | Up | 65.6 | 56.4 | Up | 12:28:42 - 12:39:23 | 1328 |
| Beatty | 12:33:29 | -25.8 | Dark | Up | 60.4 | 39.9 | Up | 12:28:09 - 12:38:50 | 1318 |
| Entiat | 12:34:03 | -27.2 | Dark | Up | 65.8 | 56.8 | Up | 12:28:42 - 12:39:23 | 1314 |
| George/Umatilla | 12:33:57 | -26.9 | Dark | Up | 65.3 | 53.6 | Up | 12:28:37 - 12:39:18 | 1305 |
| Manson/Chelan | 12:34:04 | -27.2 | Dark | Up | 66.0 | 57.3 | Up | 12:28:43 - 12:39:24 | 1302 |
| Pasco | 12:33:58 | -26.7 | Dark | Up | 65.6 | 54.1 | Up | 12:28:37 - 12:39:18 | 1280 |
| Calipatria | 12:33:17 | -24.8 | Dark | Up | 58.0 | 35.4 | Up | 12:27:57 - 12:38:38 | 1277 |
| Brewster | 12:34:04 | -26.9 | Dark | Up | 66.3 | 57.6 | Up | 12:28:43 - 12:39:24 | 1272 |
| PNWRO | 12:33:57 | -26.6 | Dark | Up | 65.6 | 53.7 | Up | 12:28:36 - 12:39:17 | 1272 |
| Okanogan | 12:34:04 | -26.7 | Dark | Up | 66.5 | 58.1 | Up | 12:28:44 - 12:39:25 | 1251 |
| Indian Springs | 12:33:27 | -24.9 | Dark | Up | 60.7 | 39.0 | Up | 12:28:07 - 12:38:48 | 1236 |
| Tonasket | 12:34:05 | -26.5 | Dark | Up | 66.8 | 58.8 | Up | 12:28:45 - 12:39:26 | 1231 |
| Oliver | 12:34:07 | -26.5 | Dark | Up | 67.0 | 59.8 | Up | 12:28:46 - 12:39:27 | 1224 |
| Oroville | 12:34:06 | -26.5 | Dark | Up | 66.9 | 59.3 | Up | 12:28:45 - 12:39:26 | 1224 |
| Okanagan Falls | 12:34:07 | -26.5 | Dark | Up | 67.1 | 60.1 | Up | 12:28:47 - 12:39:28 | 1221 |
| Summerland | 12:34:08 | -26.5 | Dark | Up | 67.1 | 60.6 | Up | 12:28:48 - 12:39:29 | 1219 |
| Anarchist Mountain Observatory | 12:34:06 | -26.5 | Dark | Up | 67.0 | 59.4 | Up | 12:28:45 - 12:39:26 | 1217 |
| Penticton | 12:34:08 | -26.5 | Dark | Up | 67.2 | 60.5 | Up | 12:28:47 - 12:39:28 | 1213 |
| Yuma | 12:33:16 | -24.1 | Dark | Up | 58.1 | 34.5 | Up | 12:27:55 - 12:38:36 | 1206 |
| Searchlight/Boulder City | 12:33:24 | -24.3 | Dark | Up | 60.2 | 37.4 | Up | 12:28:03 - 12:38:44 | 1192 |
| Kelowna | 12:34:09 | -26.3 | Dark | Up | 67.4 | 61.3 | Up | 12:28:49 - 12:39:30 | 1191 |
| Blythe | 12:33:18 | -24.1 | Dark | Up | 58.9 | 35.3 | Up | 12:27:58 - 12:38:39 | 1190 |
| Henderson | 12:33:26 | -24.4 | Dark | Up | 60.6 | 38.0 | Up | 12:28:05 - 12:38:46 | 1188 |
| Mohave Valley | 12:33:22 | -24.1 | Dark | Up | 59.9 | 36.6 | Up | 12:28:01 - 12:38:42 | 1171 |
| Laughlin/Bullhead City | 12:33:23 | -24.1 | Dark | Up | 60.1 | 36.9 | Up | 12:28:02 - 12:38:43 | 1167 |
| Parker | 12:33:20 | -23.8 | Dark | Up | 59.4 | 35.7 | Up | 12:27:59 - 12:38:40 | 1158 |
| Lake Havasu City | 12:33:20 | -23.8 | Dark | Up | 59.7 | 36.0 | Up | 12:28:00 - 12:38:41 | 1156 |
| Kingman/Dolan Springs | 12:33:22 | -23.6 | Dark | Up | 60.4 | 36.6 | Up | 12:28:02 - 12:38:43 | 1124 |
| Patrick | 12:33:23 | -23.5 | Dark | Up | 60.7 | 36.7 | Up | 12:28:02 - 12:38:43 | 1105 |
| DCO | 12:33:21 | -22.9 | Dark | Up | 60.8 | 36.0 | Up | 12:28:01 - 12:38:42 | 1049 |
| SwRI | 12:33:32 | -16.9 | AT | Up | 68.4 | 36.2 | Up | 12:28:12 - 12:38:53 | 339 |
| Niwot | 12:33:32 | -16.8 | AT | Up | 68.6 | 36.2 | Up | 12:28:12 - 12:38:53 | 330 |
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 08KV42, (2023/02/11 12:34UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 27.20 84 23Bet Dra 17:30:25.9 +52:18:05 2.8 9.72 79 PPM 035560 16:38:00.4 +56:00:57 5.3 1.45 75 PPM 035447 16:24:17.4 +55:19:49 7.5 0.61 73 PPM 035490 16:29:20.5 +55:33:25 10.3 0.18 74 08KV42 16:28:07.6 +55:36:41 17.0 74 Positions are for J2000
Event circumstances last updated at 2019/03/29 22:14:46 UT
Marc W. Buie, Southwest Research Institute