Event between 98HH151 and star GA0740:05708445 with event index number of 178242
Geocentric closest approach at 2019/02/05 11:38:56 UTC
J2000 position of star is 15:57:34.3 -14:16:52
Equinox of date position of star is 15:58:38.6 -14:20:06
Stellar brightness G=14.6,
use SENSEUP=128
Star is 83 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=23.6
[RECON map]
TNO is 32.0 AU from the Sun
and 32.2 AU from the Earth.
The TNO is moving 13.9
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 898 seconds.
The 1-sigma cross-track error in the shadow position is
4422 km.
The sky-plane scale is
23357.5 km/arcsec.
The TNO has an absolute magnitude Hv=8.4
Diameter=128.8 km assuming a 5% albedo -- 9.3 sec chord
Diameter=52.6 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is 3:2E
Star training set for 98HH151, (2019/02/05 11:39UT) Object RA Dec mag sep mel Antares 16:30:34.9 -26:28:22 0.9 14.25 73 8Bet1Sco 16:06:33.0 -19:51:22 2.6 5.84 80 PPM 230971 15:57:38.0 -14:53:02 6.4 0.60 83 PPM 230960 15:57:18.9 -14:27:15 6.6 0.34 83 PPM 230992 15:58:06.1 -14:26:08 8.7 0.17 83 98HH151 15:58:38.6 -14:20:06 14.6 83 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 15.5 km
RECON observability=0.3 and success probability=3.4%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 11:35:35 | -36.8 | Dark | Down | 12.5 | 130.9 | Really Low | 11:20:35 - 11:50:35 | -888 |
| Summerland | 11:35:33 | -37.1 | Dark | Down | 12.3 | 130.6 | Really Low | 11:20:33 - 11:50:33 | -894 |
| Penticton | 11:35:33 | -37.1 | Dark | Down | 12.6 | 130.7 | Really Low | 11:20:33 - 11:50:33 | -908 |
| Okanagan Falls | 11:35:32 | -37.2 | Dark | Down | 12.8 | 130.7 | Really Low | 11:20:32 - 11:50:32 | -918 |
| Oliver | 11:35:30 | -37.2 | Dark | Down | 12.9 | 130.7 | Really Low | 11:20:30 - 11:50:30 | -927 |
| Anarchist Mountain Observatory | 11:35:30 | -37.1 | Dark | Down | 13.1 | 130.8 | Really Low | 11:20:30 - 11:50:30 | -934 |
| Oroville | 11:35:30 | -37.2 | Dark | Down | 13.1 | 130.7 | Really Low | 11:20:30 - 11:50:30 | -939 |
| Tonasket | 11:35:29 | -37.3 | Dark | Down | 13.2 | 130.7 | Really Low | 11:20:29 - 11:50:29 | -951 |
| Okanogan | 11:35:26 | -37.5 | Dark | Down | 13.4 | 130.5 | Really Low | 11:20:26 - 11:50:26 | -971 |
| Brewster | 11:35:24 | -37.7 | Dark | Down | 13.4 | 130.3 | Really Low | 11:20:24 - 11:50:24 | -988 |
| Manson/Chelan | 11:35:22 | -38.1 | Dark | Down | 13.4 | 129.9 | Really Low | 11:20:22 - 11:50:22 | -1003 |
| Entiat | 11:35:21 | -38.2 | Dark | Down | 13.5 | 129.8 | Really Low | 11:20:21 - 11:50:21 | -1016 |
| Wenatchee | 11:35:19 | -38.3 | Dark | Down | 13.6 | 129.7 | Really Low | 11:20:19 - 11:50:19 | -1032 |
| Ellensburg | 11:35:16 | -38.6 | Dark | Down | 13.7 | 129.4 | Really Low | 11:20:16 - 11:50:16 | -1058 |
| Yakima | 11:35:14 | -38.8 | Dark | Down | 14.0 | 129.3 | Really Low | 11:20:14 - 11:50:14 | -1081 |
| Pasco | 11:35:18 | -37.9 | Dark | Down | 15.0 | 130.4 | Really Low | 11:20:18 - 11:50:18 | -1084 |
| Toppenish/White Swan | 11:35:14 | -38.7 | Dark | Down | 14.2 | 129.4 | Really Low | 11:20:14 - 11:50:14 | -1091 |
| PNWRO | 11:35:18 | -37.9 | Dark | Down | 15.3 | 130.6 | Really Low | 11:20:18 - 11:50:18 | -1096 |
| George/Umatilla | 11:35:16 | -38.2 | Dark | Down | 15.1 | 130.2 | Really Low | 11:20:16 - 11:50:16 | -1106 |
| Goldendale | 11:35:10 | -39.2 | Dark | Down | 14.3 | 128.9 | Really Low | 11:20:10 - 11:50:10 | -1129 |
| The Dalles | 11:35:07 | -39.5 | Dark | Down | 14.3 | 128.5 | Really Low | 11:20:07 - 11:50:07 | -1146 |
| Maupin | 11:35:06 | -39.6 | Dark | Down | 14.6 | 128.5 | Really Low | 11:20:06 - 11:50:06 | -1170 |
| Madras/Culver | 11:35:03 | -39.8 | Dark | Down | 14.9 | 128.4 | Really Low | 11:20:03 - 11:50:03 | -1203 |
| Redmond | 11:35:01 | -40.0 | Dark | Down | 15.1 | 128.3 | Really Low | 11:20:01 - 11:50:01 | -1226 |
| Sisters | 11:35:00 | -40.2 | Dark | Down | 14.8 | 127.9 | Really Low | 11:20:00 - 11:50:00 | -1229 |
| Bend | 11:35:00 | -40.1 | Dark | Down | 15.1 | 128.1 | Really Low | 11:20:00 - 11:50:00 | -1241 |
| Oregon Observatory | 11:34:58 | -40.3 | Dark | Down | 15.1 | 127.9 | Really Low | 11:19:58 - 11:49:58 | -1253 |
| La Pine/Gilchrist | 11:34:57 | -40.4 | Dark | Down | 15.2 | 127.9 | Really Low | 11:19:57 - 11:49:57 | -1267 |
| North Lake | 11:34:57 | -40.1 | Dark | Down | 15.8 | 128.2 | Really Low | 11:19:57 - 11:49:57 | -1286 |
| Paisley | 11:34:56 | -40.0 | Dark | Down | 16.4 | 128.4 | Really Low | 11:19:56 - 11:49:56 | -1317 |
| Niwot | 11:35:55 | -28.9 | Dark | Down | 26.5 | 141.3 | Low | 11:20:55 - 11:50:55 | -1325 |
| SwRI | 11:35:54 | -29.0 | Dark | Down | 26.5 | 141.2 | Low | 11:20:54 - 11:50:54 | -1332 |
| Chiloquin | 11:34:50 | -41.0 | Dark | Down | 15.7 | 127.3 | Really Low | 11:19:50 - 11:49:50 | -1341 |
| Lakeview | 11:34:54 | -40.0 | Dark | Down | 16.8 | 128.4 | Really Low | 11:19:54 - 11:49:54 | -1347 |
| Klamath Falls | 11:34:49 | -41.1 | Dark | Down | 15.9 | 127.3 | Really Low | 11:19:49 - 11:49:49 | -1362 |
| Tulelake | 11:34:49 | -40.9 | Dark | Down | 16.3 | 127.5 | Really Low | 11:19:49 - 11:49:49 | -1376 |
| Cedarville | 11:34:52 | -40.1 | Dark | Down | 17.3 | 128.4 | Really Low | 11:19:52 - 11:49:52 | -1387 |
| Fall River/Burney | 11:34:45 | -41.1 | Dark | Down | 16.9 | 127.3 | Really Low | 11:19:45 - 11:49:45 | -1435 |
| Susanville | 11:34:45 | -40.8 | Dark | Down | 17.7 | 127.7 | Really Low | 11:19:45 - 11:49:45 | -1467 |
| Gimple | 11:34:43 | -41.0 | Dark | Down | 17.7 | 127.5 | Really Low | 11:19:43 - 11:49:43 | -1488 |
| Greenville | 11:34:43 | -41.1 | Dark | Down | 17.7 | 127.4 | Really Low | 11:19:43 - 11:49:43 | -1489 |
| Quincy | 11:34:42 | -41.1 | Dark | Down | 17.8 | 127.4 | Really Low | 11:19:42 - 11:49:42 | -1503 |
| Portola | 11:34:44 | -40.8 | Dark | Down | 18.2 | 127.7 | Really Low | 11:19:44 - 11:49:44 | -1505 |
| Reno | 11:34:45 | -40.4 | Dark | Down | 18.7 | 128.2 | Really Low | 11:19:45 - 11:49:45 | -1515 |
| Carson City | 11:34:44 | -40.4 | Dark | Down | 19.0 | 128.1 | Really Low | 11:19:44 - 11:49:44 | -1539 |
| Yerington | 11:34:45 | -40.0 | Dark | Down | 19.5 | 128.5 | Really Low | 11:19:45 - 11:49:45 | -1544 |
| Gardnerville | 11:34:42 | -40.5 | Dark | Down | 19.2 | 128.1 | Really Low | 11:19:42 - 11:49:42 | -1555 |
| Hawthorne | 11:34:46 | -39.7 | Dark | Down | 20.1 | 128.8 | Low | 11:19:46 - 11:49:46 | -1570 |
| Tonopah | 11:34:50 | -38.7 | Dark | Down | 21.3 | 129.9 | Low | 11:19:50 - 11:49:50 | -1585 |
| Lee Vining | 11:34:41 | -40.2 | Dark | Down | 20.1 | 128.3 | Low | 11:19:41 - 11:49:41 | -1616 |
| Bishop | 11:34:42 | -39.7 | Dark | Down | 21.0 | 128.7 | Low | 11:19:42 - 11:49:42 | -1649 |
| Beatty | 11:34:48 | -38.5 | Dark | Down | 22.3 | 129.9 | Low | 11:19:48 - 11:49:48 | -1661 |
| Indian Springs | 11:34:51 | -37.7 | Dark | Down | 23.2 | 130.7 | Low | 11:19:51 - 11:49:51 | -1671 |
| Lone Pine | 11:34:40 | -39.6 | Dark | Down | 21.6 | 128.7 | Low | 11:19:40 - 11:49:40 | -1699 |
| Henderson | 11:34:52 | -37.2 | Dark | Down | 23.9 | 131.1 | Low | 11:19:52 - 11:49:52 | -1701 |
| Patrick | 11:34:55 | -36.4 | Dark | Down | 25.0 | 131.8 | Low | 11:19:55 - 11:49:55 | -1734 |
| Searchlight/Boulder City | 11:34:50 | -37.2 | Dark | Down | 24.4 | 130.9 | Low | 11:19:50 - 11:49:50 | -1742 |
| DCO | 11:34:57 | -35.8 | Dark | Down | 25.7 | 132.3 | Low | 11:19:57 - 11:49:57 | -1748 |
| Kingman/Dolan Springs | 11:34:53 | -36.6 | Dark | Down | 25.1 | 131.5 | Low | 11:19:53 - 11:49:53 | -1752 |
| Laughlin/Bullhead City | 11:34:50 | -37.0 | Dark | Down | 24.8 | 131.1 | Low | 11:19:50 - 11:49:50 | -1760 |
| Mohave Valley | 11:34:50 | -37.0 | Dark | Down | 24.9 | 131.0 | Low | 11:19:50 - 11:49:50 | -1780 |
| Lake Havasu City | 11:34:49 | -36.9 | Dark | Down | 25.4 | 131.1 | Low | 11:19:49 - 11:49:49 | -1807 |
| CPSLO | 11:34:24 | -42.0 | Dark | Down | 20.7 | 126.2 | Low | 11:19:24 - 11:49:24 | -1829 |
| Parker | 11:34:48 | -36.9 | Dark | Down | 25.6 | 131.0 | Low | 11:19:48 - 11:49:48 | -1833 |
| Blythe | 11:34:45 | -37.2 | Dark | Down | 25.8 | 130.5 | Low | 11:19:45 - 11:49:45 | -1876 |
| Wildwood | 11:34:28 | -40.5 | Dark | Down | 22.8 | 127.4 | Low | 11:19:28 - 11:49:28 | -1892 |
| Idyllwild | 11:34:35 | -39.0 | Dark | Down | 24.3 | 128.8 | Low | 11:19:35 - 11:49:35 | -1894 |
| Calipatria | 11:34:39 | -38.0 | Dark | Down | 25.5 | 129.6 | Low | 11:19:39 - 11:49:39 | -1926 |
| Yuma | 11:34:41 | -37.3 | Dark | Down | 26.3 | 130.1 | Low | 11:19:41 - 11:49:41 | -1948 |
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 98HH151, (2019/02/05 11:39UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 14.25 73 8Bet1Sco 16:05:26.2 -19:48:20 2.6 5.84 80 PPM 230971 15:56:33.5 -14:49:47 6.4 0.60 83 PPM 230960 15:56:14.5 -14:23:59 6.6 0.34 83 PPM 230992 15:57:01.7 -14:22:53 8.7 0.17 83 98HH151 15:57:34.3 -14:16:52 14.6 83 Positions are for J2000
Event circumstances last updated at 2019/01/31 18:01:56 UT
Marc W. Buie, Southwest Research Institute