Event between (508770) 95WY2 and star GA1120:02650423 with event index number of 249922
Geocentric closest approach at 2020/02/06 01:44:52 UTC
J2000 position of star is 07:06:58.6 +23:19:14
Equinox of date position of star is 07:08:09.1 +23:17:20
Stellar brightness G=15.5,
use SENSEUP=128
Star is 12 degrees from the moon.
Moon is 87% illuminated.
TNO apparent brightness V=23.7
[RECON map]
TNO is 44.9 AU from the Sun
and 44.1 AU from the Earth.
The TNO is moving 21.5
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 702 seconds.
The 1-sigma cross-track error in the shadow position is
4953 km.
The sky-plane scale is
31974.1 km/arcsec.
The TNO has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 10.6 sec chord
Diameter=93.5 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is CLASSICAL
Star training set for 508770, (2020/02/06 01:45UT) Object RA Dec mag sep mel Pollux 07:46:32.6 +27:58:34 1.1 9.83 21 Alhena 06:38:52.4 +16:22:50 1.9 9.76 8 44 Gem 07:06:30.9 +22:36:20 5.9 0.78 11 PPM 097045 07:08:30.3 +24:08:09 8.4 0.85 12 PPM 097038 07:07:59.1 +23:12:03 9.8 0.10 12 508770 07:08:11.5 +23:17:17 15.5 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
1.3 sigma about the mid-time.
The median site spacing is 0.0 km
RECON observability=0.0 and success probability=0.0%
Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
Kelowna | 01:48:01 | -8.3 | NT | Up | 34.6 | 94.1 | Up | 01:33:01 - 02:03:01 | -3791 |
Summerland | 01:48:03 | -8.1 | NT | Up | 34.4 | 93.7 | Up | 01:33:03 - 02:03:03 | -3811 |
Penticton | 01:48:02 | -8.1 | NT | Up | 34.5 | 93.7 | Up | 01:33:02 - 02:03:02 | -3820 |
Okanagan Falls | 01:48:03 | -8.1 | NT | Up | 34.5 | 93.6 | Up | 01:33:03 - 02:03:03 | -3836 |
Oliver | 01:48:04 | -8.1 | NT | Up | 34.5 | 93.5 | Up | 01:33:04 - 02:03:04 | -3851 |
Anarchist Mountain Observatory | 01:48:04 | -8.1 | NT | Up | 34.6 | 93.5 | Up | 01:33:04 - 02:03:04 | -3871 |
Oroville | 01:48:04 | -8.1 | NT | Up | 34.6 | 93.4 | Up | 01:33:04 - 02:03:04 | -3876 |
Tonasket | 01:48:05 | -8.0 | NT | Up | 34.6 | 93.3 | Up | 01:33:05 - 02:03:05 | -3897 |
Okanogan | 01:48:06 | -7.8 | NT | Up | 34.5 | 92.9 | Up | 01:33:06 - 02:03:06 | -3924 |
Brewster | 01:48:07 | -7.6 | NT | Up | 34.4 | 92.6 | Up | 01:33:07 - 02:03:07 | -3944 |
Manson/Chelan | 01:48:08 | -7.4 | NT | Up | 34.2 | 92.2 | Up | 01:33:08 - 02:03:08 | -3955 |
Entiat | 01:48:09 | -7.2 | NT | Up | 34.1 | 92.0 | Up | 01:33:09 - 02:03:09 | -3973 |
Wenatchee | 01:48:10 | -7.1 | NT | Up | 34.1 | 91.7 | Up | 01:33:10 - 02:03:10 | -3994 |
Ellensburg | 01:48:11 | -6.9 | NT | Up | 34.0 | 91.3 | Up | 01:33:11 - 02:03:11 | -4026 |
Yakima | 01:48:13 | -6.7 | NT | Up | 34.0 | 91.0 | Up | 01:33:13 - 02:03:13 | -4063 |
Toppenish/White Swan | 01:48:12 | -6.8 | NT | Up | 34.1 | 91.0 | Up | 01:33:12 - 02:03:12 | -4087 |
Pasco | 01:48:11 | -7.6 | NT | Up | 35.0 | 91.8 | Up | 01:33:11 - 02:03:11 | -4128 |
Goldendale | 01:48:15 | -6.4 | NT | Up | 33.8 | 90.3 | Up | 01:33:15 - 02:03:15 | -4128 |
The Dalles | 01:48:16 | -6.1 | NT | Up | 33.5 | 89.9 | Up | 01:33:16 - 02:03:16 | -4140 |
George/Umatilla | 01:48:13 | -7.4 | NT | Up | 34.8 | 91.4 | Up | 01:33:13 - 02:03:13 | -4154 |
PNWRO | 01:48:12 | -7.7 | NT | Up | 35.1 | 91.8 | Up | 01:33:12 - 02:03:12 | -4156 |
Maupin | 01:48:18 | -6.0 | NT | Up | 33.6 | 89.7 | Up | 01:33:18 - 02:03:18 | -4181 |
Madras/Culver | 01:48:19 | -5.8 | CT | Up | 33.6 | 89.3 | Up | 01:33:19 - 02:03:19 | -4231 |
Sisters | 01:48:21 | -5.4 | CT | Up | 33.3 | 88.8 | Up | 01:33:21 - 02:03:21 | -4251 |
Redmond | 01:48:21 | -5.7 | CT | Up | 33.5 | 89.0 | Up | 01:33:21 - 02:03:21 | -4263 |
Bend | 01:48:21 | -5.6 | CT | Up | 33.4 | 88.8 | Up | 01:33:21 - 02:03:21 | -4280 |
Oregon Observatory | 01:48:21 | -5.4 | CT | Up | 33.3 | 88.6 | Up | 01:33:21 - 02:03:21 | -4293 |
La Pine/Gilchrist | 01:48:22 | -5.3 | CT | Up | 33.3 | 88.4 | Up | 01:33:22 - 02:03:22 | -4310 |
North Lake | 01:48:22 | -5.6 | CT | Up | 33.7 | 88.5 | Up | 01:33:22 - 02:03:22 | -4367 |
Chiloquin | 01:48:26 | -4.8 | CT | Up | 33.0 | 87.5 | Up | 01:33:26 - 02:03:26 | -4406 |
Paisley | 01:48:24 | -5.7 | CT | Up | 34.0 | 88.4 | Up | 01:33:24 - 02:03:24 | -4428 |
Klamath Falls | 01:48:27 | -4.7 | CT | Up | 33.1 | 87.3 | Up | 01:33:27 - 02:03:27 | -4441 |
Tulelake | 01:48:27 | -4.8 | CT | Up | 33.3 | 87.3 | Up | 01:33:27 - 02:03:27 | -4474 |
Lakeview | 01:48:24 | -5.7 | CT | Up | 34.1 | 88.2 | Up | 01:33:24 - 02:03:24 | -4481 |
Cedarville | 01:48:26 | -5.7 | CT | Up | 34.2 | 87.9 | Up | 01:33:26 - 02:03:26 | -4548 |
Fall River/Burney | 01:48:29 | -4.6 | CT | Up | 33.3 | 86.8 | Up | 01:33:29 - 02:03:29 | -4563 |
Susanville | 01:48:30 | -5.0 | CT | Up | 33.8 | 86.8 | Up | 01:33:30 - 02:03:30 | -4643 |
Greenville | 01:48:30 | -4.7 | CT | Up | 33.6 | 86.5 | Up | 01:33:30 - 02:03:30 | -4662 |
Gimple | 01:48:31 | -4.8 | CT | Up | 33.6 | 86.5 | Up | 01:33:31 - 02:03:31 | -4665 |
Quincy | 01:48:31 | -4.7 | CT | Up | 33.6 | 86.3 | Up | 01:33:31 - 02:03:31 | -4682 |
Portola | 01:48:31 | -5.0 | CT | Up | 33.9 | 86.5 | Up | 01:33:31 - 02:03:31 | -4707 |
Reno | 01:48:30 | -5.4 | CT | Up | 34.4 | 86.8 | Up | 01:33:30 - 02:03:30 | -4750 |
Carson City | 01:48:31 | -5.3 | CT | Up | 34.4 | 86.5 | Up | 01:33:31 - 02:03:31 | -4785 |
Gardnerville | 01:48:31 | -5.3 | CT | Up | 34.4 | 86.4 | Up | 01:33:31 - 02:03:31 | -4811 |
Yerington | 01:48:31 | -5.7 | CT | Up | 34.9 | 86.8 | Up | 01:33:31 - 02:03:31 | -4821 |
Hawthorne | 01:48:30 | -6.0 | CT | Up | 35.3 | 86.8 | Up | 01:33:30 - 02:03:30 | -4881 |
Lee Vining | 01:48:33 | -5.5 | CT | Up | 34.9 | 86.1 | Up | 01:33:33 - 02:03:33 | -4924 |
Tonopah | 01:48:28 | -6.9 | NT | Up | 36.4 | 87.2 | Up | 01:33:28 - 02:03:28 | -4963 |
Bishop | 01:48:32 | -5.9 | CT | Up | 35.4 | 86.1 | Up | 01:33:32 - 02:03:32 | -5002 |
Niwot | 01:47:56 | -16.4 | AT | Up | 45.5 | 96.8 | Up | 01:32:56 - 02:02:56 | -5025 |
SwRI | 01:47:56 | -16.3 | AT | Up | 45.5 | 96.7 | Up | 01:32:56 - 02:02:56 | -5033 |
Lone Pine | 01:48:34 | -5.9 | CT | Up | 35.6 | 85.7 | Up | 01:33:34 - 02:03:34 | -5087 |
Beatty | 01:48:30 | -7.0 | NT | Up | 36.7 | 86.7 | Up | 01:33:30 - 02:03:30 | -5091 |
CPSLO | 01:48:42 | -3.6 | CT | Up | 33.4 | 83.5 | Up | 01:33:42 - 02:03:42 | -5147 |
Indian Springs | 01:48:28 | -7.7 | NT | Up | 37.5 | 87.0 | Up | 01:33:28 - 02:03:28 | -5151 |
Henderson | 01:48:28 | -8.2 | NT | Up | 38.0 | 87.0 | Up | 01:33:28 - 02:03:28 | -5222 |
Searchlight/Boulder City | 01:48:29 | -8.1 | NT | Up | 38.1 | 86.6 | Up | 01:33:29 - 02:03:29 | -5282 |
Patrick | 01:48:27 | -8.9 | NT | Up | 38.9 | 87.1 | Up | 01:33:27 - 02:03:27 | -5314 |
Laughlin/Bullhead City | 01:48:28 | -8.3 | NT | Up | 38.3 | 86.5 | Up | 01:33:28 - 02:03:28 | -5322 |
Wildwood | 01:48:40 | -4.8 | CT | Up | 35.0 | 83.7 | Up | 01:33:40 - 02:03:40 | -5325 |
Kingman/Dolan Springs | 01:48:28 | -8.7 | NT | Up | 38.7 | 86.8 | Up | 01:33:28 - 02:03:28 | -5332 |
Mohave Valley | 01:48:30 | -8.2 | NT | Up | 38.3 | 86.3 | Up | 01:33:30 - 02:03:30 | -5350 |
DCO | 01:48:25 | -9.4 | NT | Up | 39.5 | 87.2 | Up | 01:33:25 - 02:03:25 | -5363 |
Lake Havasu City | 01:48:30 | -8.3 | NT | Up | 38.5 | 86.1 | Up | 01:33:30 - 02:03:30 | -5397 |
Idyllwild | 01:48:36 | -6.2 | NT | Up | 36.5 | 84.4 | Up | 01:33:36 - 02:03:36 | -5413 |
Parker | 01:48:30 | -8.3 | NT | Up | 38.5 | 85.9 | Up | 01:33:30 - 02:03:30 | -5434 |
Blythe | 01:48:32 | -7.9 | NT | Up | 38.2 | 85.3 | Up | 01:33:32 - 02:03:32 | -5480 |
Calipatria | 01:48:35 | -7.0 | NT | Up | 37.4 | 84.5 | Up | 01:33:35 - 02:03:35 | -5507 |
Yuma | 01:48:34 | -7.7 | NT | Up | 38.1 | 84.6 | Up | 01:33:34 - 02:03:34 | -5574 |
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 508770, (2020/02/06 01:45UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 9.83 21 Alhena 06:37:42.8 +16:23:57 1.9 9.76 8 44 Gem 07:05:18.4 +22:38:15 5.9 0.78 11 PPM 097045 07:07:16.9 +24:10:06 8.4 0.85 12 PPM 097038 07:06:46.3 +23:14:00 9.8 0.10 12 508770 07:06:58.6 +23:19:14 15.5 12 Positions are for J2000
Event circumstances last updated at 2019/06/07 23:14:37 UT
Marc W. Buie, Southwest Research Institute