Event between 15VW170 and star GA1080:00368938 with event index number of 1021202
Geocentric closest approach at 2019/02/23 06:19:17 UTC
J2000 position of star is 03:25:02.6 +18:37:49
Equinox of date position of star is 03:26:08.1 +18:41:48
Stellar brightness G=16.6,
use SENSEUP=128
Star is 150 degrees from the moon.
Moon is 82% illuminated.
TNO apparent brightness V=24.5
[RECON map]
TNO is 45.5 AU from the Sun
and 45.6 AU from the Earth.
The TNO is moving 9.5
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 729 seconds.
The 1-sigma cross-track error in the shadow position is
3765 km.
The sky-plane scale is
33105.4 km/arcsec.
The TNO has an absolute magnitude Hv=7.8
Diameter=163.7 km assuming a 5% albedo -- 17.3 sec chord
Diameter=66.8 km assuming a 30% albedo -- 7.0 sec chord
Dynamical classification is CLASSICAL
Star training set for 15VW170, (2019/02/23 06:19UT) Object RA Dec mag sep mel Aldebaran 04:37:01.3 +16:32:47 0.8 17.02 135 44Zet Per 03:55:20.4 +31:56:20 2.8 14.78 138 65 Ari 03:25:32.5 +20:52:12 5.9 2.18 149 PPM 119087 03:28:09.0 +18:49:20 6.6 0.49 150 PPM 119073 03:26:30.4 +18:57:49 9.8 0.28 150 PPM 119058 03:25:27.6 +18:36:29 10.1 0.18 150 15VW170 03:26:08.2 +18:41:49 16.6 150 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
1.2 sigma about the mid-time.
The median site spacing is 21.8 km
RECON observability=0.6 and success probability=8.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 06:27:58 | -44.7 | Dark | Up | 21.0 | 274.3 | Low | 06:12:58 - 06:42:58 | 4350 |
| Summerland | 06:27:57 | -44.6 | Dark | Up | 21.2 | 274.0 | Low | 06:12:57 - 06:42:57 | 4339 |
| Penticton | 06:28:00 | -44.9 | Dark | Up | 21.1 | 274.3 | Low | 06:13:00 - 06:43:00 | 4313 |
| Okanagan Falls | 06:28:00 | -45.1 | Dark | Up | 21.1 | 274.4 | Low | 06:13:00 - 06:43:00 | 4296 |
| Oliver | 06:28:02 | -45.2 | Dark | Up | 21.1 | 274.5 | Low | 06:13:02 - 06:43:02 | 4281 |
| Anarchist Mountain Observatory | 06:28:04 | -45.4 | Dark | Up | 20.9 | 274.7 | Low | 06:13:04 - 06:43:04 | 4269 |
| Oroville | 06:28:05 | -45.4 | Dark | Up | 21.0 | 274.7 | Low | 06:13:05 - 06:43:05 | 4261 |
| Tonasket | 06:28:06 | -45.6 | Dark | Up | 20.9 | 274.8 | Low | 06:13:06 - 06:43:06 | 4240 |
| Okanogan | 06:28:08 | -45.8 | Dark | Up | 21.0 | 274.8 | Low | 06:13:08 - 06:43:08 | 4206 |
| Brewster | 06:28:08 | -46.0 | Dark | Up | 21.1 | 274.7 | Low | 06:13:08 - 06:43:08 | 4177 |
| Manson/Chelan | 06:28:09 | -46.0 | Dark | Up | 21.3 | 274.6 | Low | 06:13:09 - 06:43:09 | 4150 |
| Entiat | 06:28:10 | -46.1 | Dark | Up | 21.4 | 274.6 | Low | 06:13:10 - 06:43:10 | 4129 |
| Wenatchee | 06:28:12 | -46.3 | Dark | Up | 21.4 | 274.6 | Low | 06:13:12 - 06:43:12 | 4103 |
| Ellensburg | 06:28:14 | -46.5 | Dark | Up | 21.5 | 274.6 | Low | 06:13:14 - 06:43:14 | 4060 |
| Yakima | 06:28:16 | -46.8 | Dark | Up | 21.5 | 274.8 | Low | 06:13:16 - 06:43:16 | 4021 |
| Pasco | 06:28:22 | -47.7 | Dark | Up | 20.4 | 275.9 | Low | 06:13:22 - 06:43:22 | 4019 |
| Toppenish/White Swan | 06:28:18 | -47.1 | Dark | Up | 21.3 | 275.0 | Low | 06:13:18 - 06:43:18 | 4004 |
| PNWRO | 06:28:24 | -48.0 | Dark | Up | 20.3 | 276.2 | Low | 06:13:24 - 06:43:24 | 4000 |
| George/Umatilla | 06:28:23 | -47.9 | Dark | Up | 20.6 | 275.9 | Low | 06:13:23 - 06:43:23 | 3983 |
| Goldendale | 06:28:20 | -47.3 | Dark | Up | 21.6 | 274.9 | Low | 06:13:20 - 06:43:20 | 3944 |
| The Dalles | 06:28:22 | -47.3 | Dark | Up | 21.8 | 274.8 | Low | 06:13:22 - 06:43:22 | 3915 |
| Maupin | 06:28:24 | -47.6 | Dark | Up | 21.7 | 275.0 | Low | 06:13:24 - 06:43:24 | 3877 |
| Madras/Culver | 06:28:27 | -48.0 | Dark | Up | 21.7 | 275.2 | Low | 06:13:27 - 06:43:27 | 3824 |
| Redmond | 06:28:29 | -48.3 | Dark | Up | 21.7 | 275.3 | Low | 06:13:29 - 06:43:29 | 3789 |
| Sisters | 06:28:28 | -48.1 | Dark | Up | 22.0 | 275.0 | Low | 06:13:28 - 06:43:28 | 3783 |
| Niwot | 06:29:14 | -58.2 | Dark | Up | 9.1 | 286.7 | Really Low | 06:14:14 - 06:44:14 | 3779 |
| SwRI | 06:29:14 | -58.3 | Dark | Up | 9.2 | 286.7 | Really Low | 06:14:14 - 06:44:14 | 3767 |
| Bend | 06:28:30 | -48.4 | Dark | Up | 21.7 | 275.3 | Low | 06:13:30 - 06:43:30 | 3765 |
| Oregon Observatory | 06:28:30 | -48.4 | Dark | Up | 21.8 | 275.3 | Low | 06:13:30 - 06:43:30 | 3746 |
| La Pine/Gilchrist | 06:28:32 | -48.6 | Dark | Up | 21.8 | 275.3 | Low | 06:13:32 - 06:43:32 | 3725 |
| North Lake | 06:28:35 | -49.2 | Dark | Up | 21.4 | 275.9 | Low | 06:13:35 - 06:43:35 | 3695 |
| Paisley | 06:28:40 | -49.8 | Dark | Up | 21.0 | 276.4 | Low | 06:13:40 - 06:43:40 | 3649 |
| Chiloquin | 06:28:36 | -49.2 | Dark | Up | 22.0 | 275.6 | Low | 06:13:36 - 06:43:36 | 3609 |
| Lakeview | 06:28:43 | -50.2 | Dark | Up | 20.8 | 276.7 | Low | 06:13:43 - 06:43:43 | 3604 |
| Klamath Falls | 06:28:40 | -49.5 | Dark | Up | 21.9 | 275.8 | Low | 06:13:40 - 06:43:40 | 3577 |
| Tulelake | 06:28:41 | -49.8 | Dark | Up | 21.6 | 276.1 | Low | 06:13:41 - 06:43:41 | 3557 |
| Cedarville | 06:28:46 | -50.8 | Dark | Up | 20.6 | 277.1 | Low | 06:13:46 - 06:43:46 | 3543 |
| Fall River/Burney | 06:28:46 | -50.5 | Dark | Up | 21.5 | 276.5 | Low | 06:13:46 - 06:43:46 | 3469 |
| Susanville | 06:28:51 | -51.4 | Dark | Up | 20.8 | 277.2 | Low | 06:13:51 - 06:43:51 | 3423 |
| Gimple | 06:28:52 | -51.4 | Dark | Up | 20.9 | 277.2 | Low | 06:13:52 - 06:43:52 | 3391 |
| Greenville | 06:28:51 | -51.4 | Dark | Up | 21.0 | 277.1 | Low | 06:13:51 - 06:43:51 | 3389 |
| Quincy | 06:28:52 | -51.5 | Dark | Up | 21.0 | 277.2 | Low | 06:13:52 - 06:43:52 | 3369 |
| Portola | 06:28:54 | -51.9 | Dark | Up | 20.6 | 277.6 | Low | 06:13:54 - 06:43:54 | 3367 |
| Reno | 06:28:57 | -52.4 | Dark | Up | 20.0 | 278.0 | Low | 06:13:57 - 06:43:57 | 3355 |
| Carson City | 06:28:59 | -52.7 | Dark | Up | 20.0 | 278.2 | Really Low | 06:13:59 - 06:43:59 | 3320 |
| Yerington | 06:29:03 | -53.2 | Dark | Up | 19.4 | 278.6 | Really Low | 06:14:03 - 06:44:03 | 3315 |
| Gardnerville | 06:29:00 | -52.9 | Dark | Up | 19.9 | 278.3 | Really Low | 06:14:00 - 06:44:00 | 3297 |
| Hawthorne | 06:29:05 | -53.8 | Dark | Up | 18.9 | 279.1 | Really Low | 06:14:05 - 06:44:05 | 3281 |
| Tonopah | 06:29:11 | -55.0 | Dark | Up | 17.7 | 280.1 | Really Low | 06:14:11 - 06:44:11 | 3268 |
| Lee Vining | 06:29:07 | -54.0 | Dark | Up | 19.2 | 279.0 | Really Low | 06:14:07 - 06:44:07 | 3213 |
| Bishop | 06:29:12 | -54.8 | Dark | Up | 18.5 | 279.7 | Really Low | 06:14:12 - 06:44:12 | 3170 |
| Beatty | 06:29:18 | -56.1 | Dark | Up | 17.2 | 280.7 | Really Low | 06:14:18 - 06:44:18 | 3164 |
| Indian Springs | 06:29:20 | -56.9 | Dark | Up | 16.2 | 281.4 | Really Low | 06:14:20 - 06:44:20 | 3158 |
| Henderson | 06:29:24 | -57.7 | Dark | Up | 15.6 | 282.0 | Really Low | 06:14:24 - 06:44:24 | 3122 |
| Lone Pine | 06:29:16 | -55.5 | Dark | Up | 18.1 | 280.1 | Really Low | 06:14:16 - 06:44:16 | 3102 |
| Patrick | 06:29:29 | -58.8 | Dark | Up | 14.5 | 282.7 | Really Low | 06:14:29 - 06:44:29 | 3089 |
| DCO | 06:29:31 | -59.4 | Dark | Up | 13.9 | 283.2 | Really Low | 06:14:31 - 06:44:31 | 3077 |
| Searchlight/Boulder City | 06:29:28 | -58.1 | Dark | Up | 15.4 | 282.2 | Really Low | 06:14:28 - 06:44:28 | 3066 |
| Kingman/Dolan Springs | 06:29:29 | -58.8 | Dark | Up | 14.6 | 282.7 | Really Low | 06:14:29 - 06:44:29 | 3061 |
| Laughlin/Bullhead City | 06:29:29 | -58.6 | Dark | Up | 15.0 | 282.4 | Really Low | 06:14:29 - 06:44:29 | 3046 |
| Mohave Valley | 06:29:31 | -58.8 | Dark | Up | 15.0 | 282.5 | Really Low | 06:14:31 - 06:44:31 | 3018 |
| Lake Havasu City | 06:29:33 | -59.2 | Dark | Up | 14.7 | 282.7 | Really Low | 06:14:33 - 06:44:33 | 2985 |
| Parker | 06:29:34 | -59.5 | Dark | Up | 14.6 | 282.9 | Really Low | 06:14:34 - 06:44:34 | 2950 |
| CPSLO | 06:29:15 | -54.9 | Dark | Up | 20.0 | 279.1 | Low | 06:14:15 - 06:44:15 | 2909 |
| Blythe | 06:29:35 | -59.7 | Dark | Up | 14.7 | 282.8 | Really Low | 06:14:35 - 06:44:35 | 2889 |
| Idyllwild | 06:29:31 | -58.4 | Dark | Up | 16.5 | 281.7 | Really Low | 06:14:31 - 06:44:31 | 2845 |
| Wildwood | 06:29:25 | -57.0 | Dark | Up | 18.1 | 280.6 | Really Low | 06:14:25 - 06:44:25 | 2834 |
| Calipatria | 06:29:36 | -59.5 | Dark | Up | 15.3 | 282.5 | Really Low | 06:14:36 - 06:44:36 | 2814 |
| Yuma | 06:29:39 | -60.4 | Dark | Up | 14.5 | 283.1 | Really Low | 06:14:39 - 06:44:39 | 2794 |
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 15VW170, (2019/02/23 06:19UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 17.02 135 44Zet Per 03:54:07.9 +31:53:01 2.8 14.78 138 65 Ari 03:24:26.1 +20:48:12 5.9 2.18 149 PPM 119087 03:27:03.3 +18:45:23 6.6 0.49 150 PPM 119073 03:25:24.7 +18:53:50 9.8 0.28 150 PPM 119058 03:24:22.0 +18:32:28 10.1 0.18 150 15VW170 03:25:02.6 +18:37:49 16.6 150 Positions are for J2000
Event circumstances last updated at 2019/02/12 06:16:09 UT
Marc W. Buie, Southwest Research Institute