Event between 98WY24 and star GA1120:02585452 with event index number of 167075
Geocentric closest approach at 2018/11/18 13:23:57 UTC
J2000 position of star is 06:59:59.2 +22:43:45
Equinox of date position of star is 07:01:05.8 +22:42:09
Stellar brightness G=14.2,
use SENSEUP=64
Star is 105 degrees from the moon.
Moon is 77% illuminated.
TNO apparent brightness V=22.9
[RECON map]
TNO is 41.5 AU from the Sun
and 40.8 AU from the Earth.
The TNO is moving 15.8
km/sec on the sky relative to the star, or,
1.9 arcsec/hr.
The 1-sigma error in the time of the event is 1566 seconds.
The 1-sigma cross-track error in the shadow position is
4957 km.
The sky-plane scale is
29618.2 km/arcsec.
The TNO has an absolute magnitude Hv=6.6
Diameter=291.1 km assuming a 5% albedo -- 18.5 sec chord
Diameter=118.8 km assuming a 30% albedo -- 7.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 98WY24, (2018/11/18 13:24UT) Object RA Dec mag sep mel Pollux 07:46:28.1 +27:58:45 1.1 11.52 115 Alhena 06:38:48.2 +16:22:54 1.9 8.22 100 44 Gem 07:06:26.5 +22:36:27 5.9 1.23 106 PPM 096822 06:59:20.0 +22:26:58 7.6 0.48 105 PPM 096856 07:00:38.2 +22:37:42 9.1 0.13 105 PPM 096869 07:01:20.2 +22:43:06 10.7 0.05 105 98WY24 07:01:07.4 +22:42:06 14.2 105 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
0.6 sigma about the mid-time.
The median site spacing is 26.7 km
RECON observability=0.7 and success probability=7.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Penticton | 13:21:56 | -18.0 | AT | Down | 52.5 | 236.7 | Up | 13:06:56 - 13:36:56 | 2285 |
| Oroville | 13:21:54 | -17.8 | AT | Down | 52.8 | 237.5 | Up | 13:06:54 - 13:36:54 | 2234 |
| Tonasket | 13:21:52 | -17.8 | AT | Down | 52.9 | 237.7 | Up | 13:06:52 - 13:36:52 | 2214 |
| Okanogan | 13:21:52 | -17.8 | AT | Down | 53.2 | 237.9 | Up | 13:06:52 - 13:36:52 | 2180 |
| Brewster | 13:21:51 | -17.9 | AT | Down | 53.4 | 238.0 | Up | 13:06:51 - 13:36:51 | 2151 |
| Manson/Chelan | 13:21:52 | -18.1 | Dark | Down | 53.7 | 237.8 | Up | 13:06:52 - 13:36:52 | 2124 |
| Entiat | 13:21:52 | -18.1 | Dark | Down | 53.9 | 237.9 | Up | 13:06:52 - 13:36:52 | 2103 |
| Wenatchee | 13:21:51 | -18.2 | Dark | Down | 54.1 | 238.1 | Up | 13:06:51 - 13:36:51 | 2078 |
| Ellensburg | 13:21:51 | -18.2 | Dark | Down | 54.4 | 238.3 | Up | 13:06:51 - 13:36:51 | 2035 |
| Pasco | 13:21:43 | -17.2 | AT | Down | 54.0 | 240.9 | Up | 13:06:43 - 13:36:43 | 2000 |
| Yakima | 13:21:50 | -18.2 | Dark | Down | 54.7 | 238.8 | Up | 13:06:50 - 13:36:50 | 1997 |
| PNWRO | 13:21:41 | -17.0 | AT | Down | 54.0 | 241.4 | Up | 13:06:41 - 13:36:41 | 1982 |
| Toppenish/White Swan | 13:21:48 | -18.0 | Dark | Down | 54.7 | 239.2 | Up | 13:06:48 - 13:36:48 | 1981 |
| George/Umatilla | 13:21:43 | -17.3 | AT | Down | 54.3 | 241.0 | Up | 13:06:43 - 13:36:43 | 1964 |
| Goldendale | 13:21:48 | -18.2 | Dark | Down | 55.2 | 239.4 | Up | 13:06:48 - 13:36:48 | 1921 |
| The Dalles | 13:21:49 | -18.5 | Dark | Down | 55.5 | 239.2 | Up | 13:06:49 - 13:36:49 | 1892 |
| Maupin | 13:21:47 | -18.3 | Dark | Down | 55.7 | 239.9 | Up | 13:06:47 - 13:36:47 | 1855 |
| Niwot | 13:20:28 | -6.0 | CT | Down | 46.5 | 261.1 | Up | 13:05:28 - 13:35:28 | 1814 |
| Madras/Culver | 13:21:46 | -18.3 | Dark | Down | 56.0 | 240.5 | Up | 13:06:46 - 13:36:46 | 1803 |
| Redmond | 13:21:44 | -18.3 | Dark | Down | 56.2 | 240.9 | Up | 13:06:44 - 13:36:44 | 1768 |
| Sisters | 13:21:46 | -18.5 | Dark | Down | 56.4 | 240.4 | Up | 13:06:46 - 13:36:46 | 1761 |
| Bend | 13:21:44 | -18.3 | Dark | Down | 56.4 | 241.0 | Up | 13:06:44 - 13:36:44 | 1745 |
| Oregon Observatory | 13:21:44 | -18.4 | Dark | Down | 56.6 | 241.1 | Up | 13:06:44 - 13:36:44 | 1725 |
| La Pine/Gilchrist | 13:21:44 | -18.4 | Dark | Down | 56.7 | 241.3 | Up | 13:06:44 - 13:36:44 | 1705 |
| North Lake | 13:21:41 | -17.9 | AT | Down | 56.5 | 242.6 | Up | 13:06:41 - 13:36:41 | 1678 |
| Paisley | 13:21:37 | -17.6 | AT | Down | 56.5 | 243.7 | Up | 13:06:37 - 13:36:37 | 1634 |
| Lakeview | 13:21:34 | -17.3 | AT | Down | 56.6 | 244.6 | Up | 13:06:34 - 13:36:34 | 1591 |
| Chiloquin | 13:21:42 | -18.5 | Dark | Down | 57.5 | 242.3 | Up | 13:06:42 - 13:36:42 | 1590 |
| Klamath Falls | 13:21:41 | -18.4 | Dark | Down | 57.6 | 242.9 | Up | 13:06:41 - 13:36:41 | 1560 |
| Tulelake | 13:21:39 | -18.1 | Dark | Down | 57.5 | 243.6 | Up | 13:06:39 - 13:36:39 | 1541 |
| Cedarville | 13:21:31 | -17.1 | AT | Down | 56.8 | 245.7 | Up | 13:06:31 - 13:36:31 | 1532 |
| Fall River/Burney | 13:21:35 | -17.9 | AT | Down | 57.8 | 245.0 | Up | 13:06:35 - 13:36:35 | 1455 |
| Susanville | 13:21:30 | -17.2 | AT | Down | 57.6 | 246.8 | Up | 13:06:30 - 13:36:30 | 1413 |
| Gimple | 13:21:30 | -17.3 | AT | Down | 57.9 | 246.9 | Up | 13:06:30 - 13:36:30 | 1381 |
| Greenville | 13:21:31 | -17.4 | AT | Down | 57.9 | 246.8 | Up | 13:06:31 - 13:36:31 | 1379 |
| Quincy | 13:21:30 | -17.4 | AT | Down | 58.0 | 247.1 | Up | 13:06:30 - 13:36:30 | 1359 |
| Portola | 13:21:28 | -17.0 | AT | Down | 57.7 | 247.8 | Up | 13:06:28 - 13:36:28 | 1359 |
| Reno | 13:21:24 | -16.5 | AT | Down | 57.3 | 248.9 | Up | 13:06:24 - 13:36:24 | 1350 |
| Carson City | 13:21:22 | -16.4 | AT | Down | 57.5 | 249.5 | Up | 13:06:22 - 13:36:22 | 1315 |
| Yerington | 13:21:19 | -15.9 | AT | Down | 57.1 | 250.4 | Up | 13:06:19 - 13:36:19 | 1313 |
| Gardnerville | 13:21:22 | -16.3 | AT | Down | 57.5 | 249.9 | Up | 13:06:22 - 13:36:22 | 1293 |
| Hawthorne | 13:21:15 | -15.4 | AT | Down | 56.9 | 251.6 | Up | 13:06:15 - 13:36:15 | 1282 |
| Tonopah | 13:21:08 | -14.2 | AT | Down | 56.0 | 253.6 | Up | 13:06:08 - 13:36:08 | 1274 |
| Lee Vining | 13:21:16 | -15.6 | AT | Down | 57.4 | 251.9 | Up | 13:06:16 - 13:36:16 | 1213 |
| Bishop | 13:21:11 | -14.9 | AT | Down | 57.0 | 253.5 | Up | 13:06:11 - 13:36:11 | 1174 |
| Beatty | 13:21:02 | -13.6 | AT | Down | 55.9 | 255.7 | Up | 13:06:02 - 13:36:02 | 1173 |
| Indian Springs | 13:20:57 | -12.7 | AT | Down | 55.2 | 257.0 | Up | 13:05:57 - 13:35:57 | 1172 |
| Henderson | 13:20:52 | -12.0 | AT | Down | 54.8 | 258.4 | Up | 13:05:52 - 13:35:52 | 1139 |
| Patrick | 13:20:46 | -11.0 | CT | Down | 54.0 | 260.1 | Up | 13:05:46 - 13:35:46 | 1110 |
| Lone Pine | 13:21:07 | -14.5 | AT | Down | 57.0 | 254.9 | Up | 13:06:07 - 13:36:07 | 1108 |
| DCO | 13:20:42 | -10.4 | CT | Down | 53.5 | 261.0 | Up | 13:05:42 - 13:35:42 | 1101 |
| Searchlight/Boulder City | 13:20:50 | -11.8 | CT | Down | 54.8 | 259.2 | Up | 13:05:50 - 13:35:50 | 1085 |
| Kingman/Dolan Springs | 13:20:46 | -11.1 | CT | Down | 54.2 | 260.2 | Up | 13:05:46 - 13:35:46 | 1083 |
| Laughlin/Bullhead City | 13:20:48 | -11.5 | CT | Down | 54.6 | 259.9 | Up | 13:05:48 - 13:35:48 | 1066 |
| Mohave Valley | 13:20:47 | -11.4 | CT | Down | 54.7 | 260.3 | Up | 13:05:47 - 13:35:47 | 1039 |
| Lake Havasu City | 13:20:44 | -11.1 | CT | Down | 54.5 | 261.0 | Up | 13:05:44 - 13:35:44 | 1007 |
| Parker | 13:20:43 | -11.0 | CT | Down | 54.6 | 261.5 | Up | 13:05:43 - 13:35:43 | 973 |
| Blythe | 13:20:43 | -11.1 | CT | Down | 54.9 | 262.0 | Up | 13:05:43 - 13:35:43 | 912 |
| CPSLO | 13:21:15 | -16.3 | AT | Down | 59.3 | 254.6 | Up | 13:06:15 - 13:36:15 | 909 |
| Idyllwild | 13:20:53 | -12.8 | AT | Down | 56.6 | 260.3 | Up | 13:05:53 - 13:35:53 | 861 |
| Wildwood | 13:21:02 | -14.4 | AT | Down | 58.0 | 258.3 | Up | 13:06:02 - 13:36:02 | 844 |
| Calipatria | 13:20:46 | -11.7 | CT | Down | 55.7 | 262.1 | Up | 13:05:46 - 13:35:46 | 835 |
| Yuma | 13:20:40 | -10.9 | CT | Down | 55.1 | 263.3 | Up | 13:05:40 - 13:35:40 | 819 |
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 98WY24, (2018/11/18 13:24UT) Object RA Dec mag sep mel Pollux 07:45:18.1 +28:01:33 1.1 11.52 115 Alhena 06:37:42.8 +16:23:57 1.9 8.22 100 44 Gem 07:05:18.4 +22:38:15 5.9 1.23 106 PPM 096822 06:58:11.8 +22:28:34 7.6 0.48 105 PPM 096856 06:59:30.0 +22:39:20 9.1 0.13 105 PPM 096869 07:00:12.0 +22:44:45 10.7 0.05 105 98WY24 06:59:59.2 +22:43:45 14.2 105 Positions are for J2000
Event circumstances last updated at 2018/06/05 16:34:46 UT
Marc W. Buie, Southwest Research Institute