Event between (85627) 98HP151 and star GA0660:10422205 with event index number of 181748
Geocentric closest approach at 2019/02/26 13:07:19 UTC
J2000 position of star is 17:12:48.3 -23:33:36
Equinox of date position of star is 17:13:58.0 -23:34:53
Stellar brightness G=15.1,
use SENSEUP=128
Star is 12 degrees from the moon.
Moon is 49% illuminated.
TNO apparent brightness V=23.7
[RECON map]
TNO is 41.3 AU from the Sun
and 41.5 AU from the Earth.
The TNO is moving 11.4
km/sec on the sky relative to the star, or,
1.4 arcsec/hr.
The 1-sigma error in the time of the event is 1547 seconds.
The 1-sigma cross-track error in the shadow position is
3448 km.
The sky-plane scale is
30105.8 km/arcsec.
The TNO has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 17.6 sec chord
Diameter=81.5 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is CLASSICAL
Star training set for 85627, (2019/02/26 13:07UT) Object RA Dec mag sep mel Antares 16:30:35.1 -26:28:22 0.9 10.24 9 35Eta Oph 17:11:28.7 -15:44:50 2.6 7.86 10 PPM 266746 17:22:52.2 -24:55:26 6.5 2.43 14 PPM 266547 17:13:33.0 -22:56:49 8.2 0.64 11 PPM 266568 17:14:20.1 -23:30:58 9.3 0.11 12 85627 17:13:58.2 -23:34:54 15.1 12 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 7.2 km
RECON observability=0.3 and success probability=3.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 13:03:43 | -17.4 | AT | Up | 13.1 | 156.0 | Really Low | 12:48:43 - 13:18:43 | 363 |
| Summerland | 13:03:40 | -17.6 | AT | Up | 13.1 | 155.7 | Really Low | 12:48:40 - 13:18:40 | 354 |
| Penticton | 13:03:41 | -17.5 | AT | Up | 13.4 | 155.8 | Really Low | 12:48:41 - 13:18:41 | 345 |
| Okanagan Falls | 13:03:40 | -17.6 | AT | Up | 13.6 | 155.8 | Really Low | 12:48:40 - 13:18:40 | 337 |
| Oliver | 13:03:39 | -17.6 | AT | Up | 13.7 | 155.8 | Really Low | 12:48:39 - 13:18:39 | 331 |
| Anarchist Mountain Observatory | 13:03:40 | -17.5 | AT | Up | 13.9 | 156.0 | Really Low | 12:48:40 - 13:18:40 | 328 |
| Oroville | 13:03:39 | -17.5 | AT | Up | 14.0 | 155.9 | Really Low | 12:48:39 - 13:18:39 | 323 |
| Tonasket | 13:03:39 | -17.6 | AT | Up | 14.2 | 155.9 | Really Low | 12:48:39 - 13:18:39 | 314 |
| Okanogan | 13:03:37 | -17.7 | AT | Up | 14.5 | 155.7 | Really Low | 12:48:37 - 13:18:37 | 297 |
| Brewster | 13:03:35 | -17.9 | AT | Up | 14.6 | 155.5 | Really Low | 12:48:35 - 13:18:35 | 281 |
| Manson/Chelan | 13:03:32 | -18.2 | Dark | Up | 14.7 | 155.1 | Really Low | 12:48:32 - 13:18:32 | 264 |
| Entiat | 13:03:31 | -18.2 | Dark | Up | 14.9 | 155.0 | Really Low | 12:48:31 - 13:18:31 | 253 |
| Wenatchee | 13:03:30 | -18.3 | Dark | Up | 15.1 | 154.9 | Really Low | 12:48:30 - 13:18:30 | 240 |
| Ellensburg | 13:03:27 | -18.5 | Dark | Up | 15.4 | 154.6 | Really Low | 12:48:27 - 13:18:27 | 216 |
| Pasco | 13:03:34 | -17.6 | AT | Up | 16.5 | 155.8 | Really Low | 12:48:34 - 13:18:34 | 214 |
| PNWRO | 13:03:35 | -17.5 | AT | Up | 16.8 | 156.0 | Really Low | 12:48:35 - 13:18:35 | 208 |
| Yakima | 13:03:26 | -18.6 | Dark | Up | 15.8 | 154.6 | Really Low | 12:48:26 - 13:18:26 | 198 |
| George/Umatilla | 13:03:32 | -17.8 | AT | Up | 16.7 | 155.6 | Really Low | 12:48:32 - 13:18:32 | 194 |
| Toppenish/White Swan | 13:03:26 | -18.5 | Dark | Up | 16.0 | 154.7 | Really Low | 12:48:26 - 13:18:26 | 192 |
| Niwot | 13:04:59 | -7.2 | NT | Up | 25.5 | 168.8 | Low | 12:49:59 - 13:19:59 | 191 |
| SwRI | 13:04:58 | -7.3 | NT | Up | 25.6 | 168.7 | Low | 12:49:58 - 13:19:58 | 184 |
| Goldendale | 13:03:23 | -18.9 | Dark | Up | 16.4 | 154.2 | Really Low | 12:48:23 - 13:18:23 | 156 |
| The Dalles | 13:03:20 | -19.2 | Dark | Up | 16.5 | 153.8 | Really Low | 12:48:20 - 13:18:20 | 137 |
| Maupin | 13:03:19 | -19.2 | Dark | Up | 16.9 | 153.9 | Really Low | 12:48:19 - 13:18:19 | 120 |
| Madras/Culver | 13:03:17 | -19.3 | Dark | Up | 17.4 | 153.8 | Really Low | 12:48:17 - 13:18:17 | 92 |
| Redmond | 13:03:16 | -19.3 | Dark | Up | 17.7 | 153.7 | Really Low | 12:48:16 - 13:18:16 | 74 |
| Sisters | 13:03:14 | -19.6 | Dark | Up | 17.5 | 153.3 | Really Low | 12:48:14 - 13:18:14 | 65 |
| Bend | 13:03:15 | -19.5 | Dark | Up | 17.8 | 153.5 | Really Low | 12:48:15 - 13:18:15 | 60 |
| Oregon Observatory | 13:03:13 | -19.6 | Dark | Up | 17.9 | 153.3 | Really Low | 12:48:13 - 13:18:13 | 48 |
| La Pine/Gilchrist | 13:03:12 | -19.7 | Dark | Up | 18.1 | 153.3 | Really Low | 12:48:12 - 13:18:12 | 36 |
| North Lake | 13:03:15 | -19.3 | Dark | Up | 18.7 | 153.8 | Really Low | 12:48:15 - 13:18:15 | 28 |
| Paisley | 13:03:16 | -19.1 | Dark | Up | 19.3 | 154.0 | Really Low | 12:48:16 - 13:18:16 | 8 |
| Lakeview | 13:03:16 | -19.0 | Dark | Up | 19.8 | 154.1 | Really Low | 12:48:16 - 13:18:16 | -14 |
| Chiloquin | 13:03:07 | -20.1 | Dark | Up | 18.9 | 152.8 | Really Low | 12:48:07 - 13:18:07 | -30 |
| Cedarville | 13:03:15 | -18.9 | Dark | Up | 20.4 | 154.2 | Low | 12:48:15 - 13:18:15 | -44 |
| Klamath Falls | 13:03:07 | -20.0 | Dark | Up | 19.3 | 152.8 | Really Low | 12:48:07 - 13:18:07 | -46 |
| Tulelake | 13:03:08 | -19.8 | Dark | Up | 19.6 | 153.0 | Really Low | 12:48:08 - 13:18:08 | -53 |
| Fall River/Burney | 13:03:06 | -19.9 | Dark | Up | 20.5 | 152.9 | Low | 12:48:06 - 13:18:06 | -100 |
| Susanville | 13:03:09 | -19.4 | Dark | Up | 21.3 | 153.5 | Low | 12:48:09 - 13:18:09 | -117 |
| Gimple | 13:03:07 | -19.6 | Dark | Up | 21.4 | 153.3 | Low | 12:48:07 - 13:18:07 | -138 |
| Greenville | 13:03:07 | -19.6 | Dark | Up | 21.4 | 153.2 | Low | 12:48:07 - 13:18:07 | -139 |
| Reno | 13:03:13 | -18.8 | Dark | Up | 22.3 | 154.1 | Low | 12:48:13 - 13:18:13 | -145 |
| Portola | 13:03:09 | -19.3 | Dark | Up | 21.9 | 153.6 | Low | 12:48:09 - 13:18:09 | -146 |
| Quincy | 13:03:06 | -19.7 | Dark | Up | 21.6 | 153.1 | Low | 12:48:06 - 13:18:06 | -151 |
| Yerington | 13:03:16 | -18.3 | Dark | Up | 23.1 | 154.6 | Low | 12:48:16 - 13:18:16 | -160 |
| Carson City | 13:03:12 | -18.8 | Dark | Up | 22.7 | 154.1 | Low | 12:48:12 - 13:18:12 | -165 |
| Tonopah | 13:03:28 | -16.8 | AT | Up | 24.6 | 156.3 | Low | 12:48:28 - 13:18:28 | -167 |
| Hawthorne | 13:03:19 | -17.9 | AT | Up | 23.7 | 155.1 | Low | 12:48:19 - 13:18:19 | -174 |
| Gardnerville | 13:03:12 | -18.8 | Dark | Up | 22.9 | 154.1 | Low | 12:48:12 - 13:18:12 | -178 |
| Indian Springs | 13:03:37 | -15.6 | AT | Up | 26.4 | 157.6 | Low | 12:48:37 - 13:18:37 | -218 |
| Lee Vining | 13:03:15 | -18.4 | Dark | Up | 24.0 | 154.5 | Low | 12:48:15 - 13:18:15 | -219 |
| Beatty | 13:03:29 | -16.5 | AT | Up | 25.8 | 156.6 | Low | 12:48:29 - 13:18:29 | -224 |
| Henderson | 13:03:41 | -15.0 | AT | Up | 27.1 | 158.2 | Low | 12:48:41 - 13:18:41 | -233 |
| Bishop | 13:03:19 | -17.8 | AT | Up | 24.8 | 155.1 | Low | 12:48:19 - 13:18:19 | -236 |
| Patrick | 13:03:48 | -14.1 | AT | Up | 28.1 | 159.2 | Low | 12:48:48 - 13:18:48 | -245 |
| DCO | 13:03:53 | -13.5 | AT | Up | 28.6 | 159.8 | Low | 12:48:53 - 13:18:53 | -248 |
| Kingman/Dolan Springs | 13:03:47 | -14.2 | AT | Up | 28.2 | 158.9 | Low | 12:48:47 - 13:18:47 | -263 |
| Searchlight/Boulder City | 13:03:40 | -15.0 | AT | Up | 27.7 | 158.1 | Low | 12:48:40 - 13:18:40 | -267 |
| Lone Pine | 13:03:19 | -17.6 | AT | Up | 25.6 | 155.2 | Low | 12:48:19 - 13:18:19 | -274 |
| Laughlin/Bullhead City | 13:03:43 | -14.7 | AT | Up | 28.1 | 158.4 | Low | 12:48:43 - 13:18:43 | -277 |
| Mohave Valley | 13:03:42 | -14.7 | AT | Up | 28.3 | 158.4 | Low | 12:48:42 - 13:18:42 | -294 |
| Lake Havasu City | 13:03:44 | -14.5 | AT | Up | 28.8 | 158.5 | Low | 12:48:44 - 13:18:44 | -313 |
| Parker | 13:03:43 | -14.4 | AT | Up | 29.1 | 158.5 | Low | 12:48:43 - 13:18:43 | -334 |
| Blythe | 13:03:40 | -14.7 | AT | Up | 29.5 | 158.1 | Low | 12:48:40 - 13:18:40 | -375 |
| Idyllwild | 13:03:24 | -16.5 | AT | Up | 28.7 | 155.9 | Low | 12:48:24 - 13:18:24 | -419 |
| CPSLO | 13:02:59 | -19.8 | Dark | Up | 25.8 | 152.4 | Low | 12:47:59 - 13:17:59 | -421 |
| Calipatria | 13:03:32 | -15.5 | AT | Up | 29.6 | 157.0 | Low | 12:48:32 - 13:18:32 | -429 |
| Yuma | 13:03:39 | -14.7 | AT | Up | 30.3 | 157.8 | Up | 12:48:39 - 13:18:39 | -435 |
| Wildwood | 13:03:11 | -18.1 | Dark | Up | 27.7 | 154.1 | Low | 12:48:11 - 13:18:11 | -444 |
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 85627, (2019/02/26 13:07UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 10.24 9 35Eta Oph 17:10:22.7 -15:43:29 2.6 7.86 10 PPM 266746 17:21:41.5 -24:54:23 6.5 2.43 14 PPM 266547 17:12:23.4 -22:55:31 8.2 0.64 11 PPM 266568 17:13:10.3 -23:29:41 9.3 0.11 12 85627 17:12:48.3 -23:33:36 15.1 12 Positions are for J2000
Event circumstances last updated at 2019/02/12 06:20:17 UT
Marc W. Buie, Southwest Research Institute