Event between (523965) 98XY95 and star GA1160:02912335 with event index number of 1591194
Geocentric closest approach at 2020/04/16 06:23:33 UTC
J2000 position of star is 07:44:46.3 +27:30:14
Equinox of date position of star is 07:45:58.4 +27:27:21
Stellar brightness G=15.3,
use SENSEUP=128
Star is 161 degrees from the moon.
Moon is 37% illuminated.
TNO apparent brightness V=22.4
[RECON map]
TNO is 38.1 AU from the Sun
and 38.1 AU from the Earth.
The TNO is moving 7.4
km/sec on the sky relative to the star, or,
1.0 arcsec/hr.
The 1-sigma error in the time of the event is 896 seconds.
The 1-sigma cross-track error in the shadow position is
2680 km.
The sky-plane scale is
27657.3 km/arcsec.
The TNO has an absolute magnitude Hv=6.4
Diameter=316.2 km assuming a 5% albedo -- 42.5 sec chord
Diameter=129.1 km assuming a 30% albedo -- 17.4 sec chord
Dynamical classification is SCATNEAR
Star training set for 523965, (2020/04/16 06:24UT) Object RA Dec mag sep mel Pollux 07:46:33.3 +27:58:32 1.1 0.53 161 75Sig Gem 07:44:34.6 +28:49:58 5.3 1.42 161 PPM 097936 07:47:07.7 +26:40:29 7.9 0.82 162 PPM 097913 07:45:49.9 +27:25:51 9.3 0.05 161 523965 07:46:01.3 +27:27:14 15.3 162 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
1.0 sigma about the mid-time.
The median site spacing is 4.3 km
RECON observability=1.0 and success probability=8.7%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| SwRI | 06:28:31 | -39.1 | Dark | Down | 24.1 | 286.6 | Low | 06:13:31 - 06:43:31 | 1813 |
| Kelowna | 06:26:09 | -26.6 | Dark | Down | 36.0 | 271.4 | Up | 06:11:09 - 06:41:09 | 1462 |
| Penticton | 06:26:14 | -26.9 | Dark | Down | 36.0 | 271.5 | Up | 06:11:14 - 06:41:14 | 1447 |
| Summerland | 06:26:14 | -26.8 | Dark | Down | 36.1 | 271.4 | Up | 06:11:14 - 06:41:14 | 1443 |
| Anarchist Mountain Observatory | 06:26:25 | -27.4 | Dark | Down | 35.9 | 272.1 | Up | 06:11:25 - 06:41:25 | 1443 |
| Okanagan Falls | 06:26:18 | -27.0 | Dark | Down | 36.0 | 271.7 | Up | 06:11:18 - 06:41:18 | 1441 |
| Oliver | 06:26:19 | -27.2 | Dark | Down | 36.0 | 271.8 | Up | 06:11:19 - 06:41:19 | 1438 |
| Oroville | 06:26:23 | -27.5 | Dark | Down | 35.9 | 272.1 | Up | 06:11:23 - 06:41:23 | 1438 |
| Tonasket | 06:26:26 | -27.7 | Dark | Down | 35.9 | 272.3 | Up | 06:11:26 - 06:41:26 | 1433 |
| Okanogan | 06:26:32 | -27.9 | Dark | Down | 36.0 | 272.4 | Up | 06:11:32 - 06:41:32 | 1418 |
| Brewster | 06:26:36 | -28.1 | Dark | Down | 36.1 | 272.5 | Up | 06:11:36 - 06:41:36 | 1403 |
| PNWRO | 06:27:06 | -30.3 | Dark | Down | 35.3 | 274.7 | Up | 06:12:06 - 06:42:06 | 1389 |
| Pasco | 06:27:02 | -30.0 | Dark | Down | 35.5 | 274.4 | Up | 06:12:02 - 06:42:02 | 1385 |
| Manson/Chelan | 06:26:39 | -28.2 | Dark | Down | 36.3 | 272.4 | Up | 06:11:39 - 06:41:39 | 1382 |
| George/Umatilla | 06:27:10 | -30.3 | Dark | Down | 35.6 | 274.5 | Up | 06:12:10 - 06:42:10 | 1366 |
| Wenatchee | 06:26:44 | -28.6 | Dark | Down | 36.4 | 272.6 | Up | 06:11:44 - 06:41:44 | 1362 |
| Ellensburg | 06:26:49 | -28.9 | Dark | Down | 36.5 | 272.8 | Up | 06:11:49 - 06:41:49 | 1341 |
| Toppenish/White Swan | 06:27:00 | -29.5 | Dark | Down | 36.3 | 273.4 | Up | 06:12:00 - 06:42:00 | 1331 |
| Yakima | 06:26:56 | -29.3 | Dark | Down | 36.5 | 273.1 | Up | 06:11:56 - 06:41:56 | 1330 |
| Goldendale | 06:27:08 | -29.9 | Dark | Down | 36.6 | 273.5 | Up | 06:12:08 - 06:42:08 | 1297 |
| Patrick | 06:29:39 | -41.7 | Dark | Down | 29.2 | 284.6 | Low | 06:14:39 - 06:44:39 | 1281 |
| The Dalles | 06:27:10 | -30.0 | Dark | Down | 36.8 | 273.4 | Up | 06:12:10 - 06:42:10 | 1273 |
| Maupin | 06:27:16 | -30.4 | Dark | Down | 36.7 | 273.8 | Up | 06:12:16 - 06:42:16 | 1266 |
| Kingman/Dolan Springs | 06:29:42 | -41.9 | Dark | Down | 29.3 | 284.6 | Low | 06:14:42 - 06:44:42 | 1263 |
| Henderson | 06:29:30 | -40.8 | Dark | Down | 30.3 | 283.7 | Up | 06:14:30 - 06:44:30 | 1250 |
| Madras/Culver | 06:27:23 | -30.9 | Dark | Down | 36.7 | 274.2 | Up | 06:12:23 - 06:42:23 | 1247 |
| Laughlin/Bullhead City | 06:29:42 | -41.7 | Dark | Down | 29.7 | 284.4 | Low | 06:14:42 - 06:44:42 | 1236 |
| Indian Springs | 06:29:24 | -40.1 | Dark | Down | 31.0 | 283.0 | Up | 06:14:24 - 06:44:24 | 1236 |
| Redmond | 06:27:29 | -31.2 | Dark | Down | 36.7 | 274.5 | Up | 06:12:29 - 06:42:29 | 1234 |
| Searchlight/Boulder City | 06:29:38 | -41.4 | Dark | Down | 30.1 | 284.0 | Up | 06:14:38 - 06:44:38 | 1231 |
| Mohave Valley | 06:29:45 | -42.0 | Dark | Down | 29.6 | 284.5 | Low | 06:14:45 - 06:44:45 | 1226 |
| Lake Havasu City | 06:29:52 | -42.5 | Dark | Down | 29.3 | 284.9 | Low | 06:14:52 - 06:44:52 | 1222 |
| Bend | 06:27:31 | -31.3 | Dark | Down | 36.7 | 274.6 | Up | 06:12:31 - 06:42:31 | 1221 |
| Sisters | 06:27:31 | -31.0 | Dark | Down | 36.9 | 274.2 | Up | 06:12:31 - 06:42:31 | 1216 |
| Tonopah | 06:29:01 | -38.2 | Dark | Down | 32.6 | 281.3 | Up | 06:14:01 - 06:44:01 | 1216 |
| North Lake | 06:27:44 | -32.2 | Dark | Down | 36.3 | 275.5 | Up | 06:12:44 - 06:42:44 | 1214 |
| Paisley | 06:27:52 | -32.8 | Dark | Down | 36.0 | 276.1 | Up | 06:12:52 - 06:42:52 | 1214 |
| Parker | 06:29:55 | -42.8 | Dark | Down | 29.2 | 285.1 | Low | 06:14:55 - 06:44:55 | 1209 |
| Oregon Observatory | 06:27:34 | -31.4 | Dark | Down | 36.8 | 274.6 | Up | 06:12:34 - 06:42:34 | 1209 |
| Lakeview | 06:28:00 | -33.3 | Dark | Down | 35.8 | 276.6 | Up | 06:13:00 - 06:43:00 | 1206 |
| La Pine/Gilchrist | 06:27:37 | -31.6 | Dark | Down | 36.8 | 274.7 | Up | 06:12:37 - 06:42:37 | 1199 |
| Beatty | 06:29:17 | -39.4 | Dark | Down | 31.9 | 282.3 | Up | 06:14:17 - 06:44:17 | 1195 |
| Cedarville | 06:28:10 | -34.0 | Dark | Down | 35.5 | 277.2 | Up | 06:13:10 - 06:43:10 | 1193 |
| Blythe | 06:30:03 | -43.2 | Dark | Down | 29.3 | 285.3 | Low | 06:15:03 - 06:45:03 | 1173 |
| Hawthorne | 06:28:52 | -37.3 | Dark | Down | 33.8 | 280.2 | Up | 06:13:52 - 06:43:52 | 1162 |
| Yerington | 06:28:46 | -36.7 | Dark | Down | 34.3 | 279.6 | Up | 06:13:46 - 06:43:46 | 1153 |
| Chiloquin | 06:27:52 | -32.5 | Dark | Down | 36.9 | 275.4 | Up | 06:12:52 - 06:42:52 | 1146 |
| Tulelake | 06:28:03 | -33.1 | Dark | Down | 36.6 | 276.1 | Up | 06:13:03 - 06:43:03 | 1144 |
| Reno | 06:28:38 | -35.9 | Dark | Down | 34.9 | 278.9 | Up | 06:13:38 - 06:43:38 | 1140 |
| Klamath Falls | 06:27:58 | -32.8 | Dark | Down | 36.8 | 275.7 | Up | 06:12:58 - 06:42:58 | 1138 |
| Yuma | 06:30:17 | -44.0 | Dark | Down | 29.0 | 285.8 | Low | 06:15:17 - 06:45:17 | 1132 |
| Bishop | 06:29:09 | -38.4 | Dark | Down | 33.3 | 281.2 | Up | 06:14:09 - 06:44:09 | 1130 |
| Susanville | 06:28:26 | -34.8 | Dark | Down | 35.7 | 277.8 | Up | 06:13:26 - 06:43:26 | 1130 |
| Carson City | 06:28:43 | -36.2 | Dark | Down | 34.8 | 279.1 | Up | 06:13:43 - 06:43:43 | 1129 |
| Gardnerville | 06:28:47 | -36.5 | Dark | Down | 34.7 | 279.3 | Up | 06:13:47 - 06:43:47 | 1122 |
| Portola | 06:28:34 | -35.4 | Dark | Down | 35.4 | 278.3 | Up | 06:13:34 - 06:43:34 | 1118 |
| Lone Pine | 06:29:20 | -39.2 | Dark | Down | 32.9 | 281.8 | Up | 06:14:20 - 06:44:20 | 1118 |
| Lee Vining | 06:29:00 | -37.6 | Dark | Down | 34.0 | 280.4 | Up | 06:14:00 - 06:44:00 | 1117 |
| Fall River/Burney | 06:28:14 | -34.0 | Dark | Down | 36.4 | 276.8 | Up | 06:13:14 - 06:43:14 | 1116 |
| Gimple | 06:28:28 | -35.0 | Dark | Down | 35.8 | 277.8 | Up | 06:13:28 - 06:43:28 | 1110 |
| Greenville | 06:28:28 | -35.0 | Dark | Down | 35.9 | 277.8 | Up | 06:13:28 - 06:43:28 | 1106 |
| Calipatria | 06:30:08 | -43.3 | Dark | Down | 29.9 | 285.1 | Low | 06:15:08 - 06:45:08 | 1105 |
| Quincy | 06:28:33 | -35.1 | Dark | Down | 35.8 | 278.0 | Up | 06:13:33 - 06:43:33 | 1099 |
| Idyllwild | 06:30:01 | -42.3 | Dark | Down | 31.0 | 284.3 | Up | 06:15:01 - 06:45:01 | 1070 |
| Wildwood | 06:29:55 | -41.3 | Dark | Down | 32.6 | 283.2 | Up | 06:14:55 - 06:44:55 | 986 |
| CPSLO | 06:29:37 | -39.4 | Dark | Down | 34.6 | 281.5 | Up | 06:14:37 - 06:44:37 | 930 |
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 523965, (2020/04/16 06:24UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 0.53 161 75Sig Gem 07:43:18.8 +28:52:56 5.3 1.42 161 PPM 097936 07:45:53.1 +26:43:31 7.9 0.82 162 PPM 097913 07:44:34.8 +27:28:52 9.3 0.05 161 523965 07:44:46.3 +27:30:14 15.3 161 Positions are for J2000
Event circumstances last updated at 2019/07/02 02:36:01 UT
Marc W. Buie, Southwest Research Institute