Event between (500885) 13JL65 and star GA0740:06675585 with event index number of 266559
Geocentric closest approach at 2020/05/24 07:24:26 UTC
J2000 position of star is 17:01:42.9 -15:42:45
Equinox of date position of star is 17:02:49.7 -15:44:22
Stellar brightness G=16.0,
use SENSEUP=128
Star is 171 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=24.6
[RECON map]
TNO is 36.4 AU from the Sun
and 35.4 AU from the Earth.
The TNO is moving 23.7
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 1072 seconds.
The 1-sigma cross-track error in the shadow position is
4042 km.
The sky-plane scale is
25656.4 km/arcsec.
The TNO has an absolute magnitude Hv=9.0
Diameter=95.5 km assuming a 5% albedo -- 4.0 sec chord
Diameter=39.0 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is 3:2E
Star training set for 500885, (2020/05/24 07:24UT) Object RA Dec mag sep mel Antares 16:30:39.7 -26:28:32 0.9 13.09 167 35Eta Oph 17:11:33.0 -15:44:56 2.6 2.09 173 PPM 232348 16:57:12.6 -16:50:13 6.3 1.75 171 PPM 232432 17:00:33.7 -16:05:38 7.9 0.66 171 PPM 232493 17:03:13.0 -15:36:22 9.4 0.16 171 500885 17:02:53.1 -15:44:27 16.0 172 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
0.8 sigma about the mid-time.
The median site spacing is 13.1 km
RECON observability=1.0 and success probability=1.9%
Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
Kelowna | 07:25:57 | -19.0 | Dark | Down | 21.8 | 158.2 | Low | 07:10:57 - 07:40:57 | 9794 |
Summerland | 07:25:59 | -19.2 | Dark | Down | 22.0 | 157.9 | Low | 07:10:59 - 07:40:59 | 9774 |
Penticton | 07:25:58 | -19.3 | Dark | Down | 22.1 | 158.0 | Low | 07:10:58 - 07:40:58 | 9773 |
Okanagan Falls | 07:25:58 | -19.5 | Dark | Down | 22.3 | 157.9 | Low | 07:10:58 - 07:40:58 | 9763 |
Oliver | 07:25:59 | -19.7 | Dark | Down | 22.5 | 157.9 | Low | 07:10:59 - 07:40:59 | 9754 |
Anarchist Mountain Observatory | 07:25:58 | -19.8 | Dark | Down | 22.7 | 158.1 | Low | 07:10:58 - 07:40:58 | 9748 |
Oroville | 07:25:59 | -19.9 | Dark | Down | 22.7 | 158.0 | Low | 07:10:59 - 07:40:59 | 9743 |
Tonasket | 07:25:59 | -20.1 | Dark | Down | 22.9 | 158.0 | Low | 07:10:59 - 07:40:59 | 9731 |
Okanogan | 07:26:00 | -20.5 | Dark | Down | 23.2 | 157.8 | Low | 07:11:00 - 07:41:00 | 9711 |
Brewster | 07:26:01 | -20.7 | Dark | Down | 23.4 | 157.5 | Low | 07:11:01 - 07:41:01 | 9693 |
Manson/Chelan | 07:26:02 | -20.9 | Dark | Down | 23.5 | 157.1 | Low | 07:11:02 - 07:41:02 | 9676 |
Entiat | 07:26:02 | -21.1 | Dark | Down | 23.7 | 157.0 | Low | 07:11:02 - 07:41:02 | 9663 |
Wenatchee | 07:26:03 | -21.3 | Dark | Down | 23.9 | 156.9 | Low | 07:11:03 - 07:41:03 | 9647 |
Ellensburg | 07:26:04 | -21.7 | Dark | Down | 24.2 | 156.6 | Low | 07:11:04 - 07:41:04 | 9621 |
Pasco | 07:26:00 | -22.6 | Dark | Down | 25.3 | 157.9 | Low | 07:11:00 - 07:41:00 | 9602 |
Yakima | 07:26:04 | -22.1 | Dark | Down | 24.6 | 156.5 | Low | 07:11:04 - 07:41:04 | 9597 |
PNWRO | 07:25:59 | -22.9 | Dark | Down | 25.6 | 158.1 | Low | 07:10:59 - 07:40:59 | 9592 |
Toppenish/White Swan | 07:26:04 | -22.4 | Dark | Down | 24.8 | 156.6 | Low | 07:11:04 - 07:41:04 | 9588 |
George/Umatilla | 07:26:01 | -22.9 | Dark | Down | 25.5 | 157.6 | Low | 07:11:01 - 07:41:01 | 9579 |
Goldendale | 07:26:05 | -22.9 | Dark | Down | 25.2 | 156.1 | Low | 07:11:05 - 07:41:05 | 9549 |
The Dalles | 07:26:07 | -23.0 | Dark | Down | 25.3 | 155.7 | Low | 07:11:07 - 07:41:07 | 9530 |
Maupin | 07:26:07 | -23.5 | Dark | Down | 25.7 | 155.7 | Low | 07:11:07 - 07:41:07 | 9507 |
Madras/Culver | 07:26:08 | -24.0 | Dark | Down | 26.2 | 155.6 | Low | 07:11:08 - 07:41:08 | 9474 |
Redmond | 07:26:08 | -24.4 | Dark | Down | 26.5 | 155.5 | Low | 07:11:08 - 07:41:08 | 9452 |
Sisters | 07:26:09 | -24.3 | Dark | Down | 26.4 | 155.1 | Low | 07:11:09 - 07:41:09 | 9446 |
Niwot | 07:25:19 | -28.7 | Dark | Down | 33.8 | 172.0 | Up | 07:10:19 - 07:40:19 | 9441 |
Bend | 07:26:09 | -24.6 | Dark | Down | 26.7 | 155.3 | Low | 07:11:09 - 07:41:09 | 9436 |
SwRI | 07:25:18 | -28.8 | Dark | Down | 33.9 | 171.9 | Up | 07:10:18 - 07:40:18 | 9433 |
Oregon Observatory | 07:26:09 | -24.7 | Dark | Down | 26.8 | 155.1 | Low | 07:11:09 - 07:41:09 | 9423 |
La Pine/Gilchrist | 07:26:10 | -24.9 | Dark | Down | 27.0 | 155.0 | Low | 07:11:10 - 07:41:10 | 9410 |
North Lake | 07:26:08 | -25.4 | Dark | Down | 27.6 | 155.5 | Low | 07:11:08 - 07:41:08 | 9393 |
Paisley | 07:26:08 | -26.0 | Dark | Down | 28.2 | 155.8 | Low | 07:11:08 - 07:41:08 | 9365 |
Lakeview | 07:26:07 | -26.5 | Dark | Down | 28.7 | 155.9 | Low | 07:11:07 - 07:41:07 | 9337 |
Chiloquin | 07:26:12 | -26.0 | Dark | Down | 27.9 | 154.4 | Low | 07:11:12 - 07:41:12 | 9334 |
Klamath Falls | 07:26:12 | -26.3 | Dark | Down | 28.2 | 154.4 | Low | 07:11:12 - 07:41:12 | 9314 |
Tulelake | 07:26:12 | -26.6 | Dark | Down | 28.5 | 154.6 | Low | 07:11:12 - 07:41:12 | 9302 |
Cedarville | 07:26:08 | -27.2 | Dark | Down | 29.3 | 155.9 | Low | 07:11:08 - 07:41:08 | 9298 |
Fall River/Burney | 07:26:12 | -27.5 | Dark | Down | 29.4 | 154.5 | Low | 07:11:12 - 07:41:12 | 9244 |
Susanville | 07:26:10 | -28.2 | Dark | Down | 30.2 | 155.1 | Up | 07:11:10 - 07:41:10 | 9216 |
Gimple | 07:26:11 | -28.5 | Dark | Down | 30.4 | 154.8 | Up | 07:11:11 - 07:41:11 | 9194 |
Greenville | 07:26:11 | -28.5 | Dark | Down | 30.4 | 154.8 | Up | 07:11:11 - 07:41:11 | 9193 |
Portola | 07:26:10 | -28.8 | Dark | Down | 30.8 | 155.2 | Up | 07:11:10 - 07:41:10 | 9180 |
Quincy | 07:26:11 | -28.7 | Dark | Down | 30.5 | 154.7 | Up | 07:11:11 - 07:41:11 | 9179 |
Reno | 07:26:08 | -29.2 | Dark | Down | 31.3 | 155.8 | Up | 07:11:08 - 07:41:08 | 9174 |
Carson City | 07:26:08 | -29.5 | Dark | Down | 31.6 | 155.7 | Up | 07:11:08 - 07:41:08 | 9150 |
Yerington | 07:26:06 | -29.8 | Dark | Down | 32.0 | 156.3 | Up | 07:11:06 - 07:41:06 | 9148 |
Gardnerville | 07:26:08 | -29.8 | Dark | Down | 31.8 | 155.7 | Up | 07:11:08 - 07:41:08 | 9134 |
Hawthorne | 07:26:04 | -30.3 | Dark | Down | 32.6 | 156.8 | Up | 07:11:04 - 07:41:04 | 9126 |
Tonopah | 07:26:00 | -30.9 | Dark | Down | 33.4 | 158.2 | Up | 07:11:00 - 07:41:00 | 9119 |
Lee Vining | 07:26:07 | -30.8 | Dark | Down | 32.9 | 156.1 | Up | 07:11:07 - 07:41:07 | 9078 |
Bishop | 07:26:05 | -31.5 | Dark | Down | 33.7 | 156.8 | Up | 07:11:05 - 07:41:05 | 9050 |
Beatty | 07:25:58 | -32.1 | Dark | Down | 34.6 | 158.4 | Up | 07:10:58 - 07:40:58 | 9047 |
Indian Springs | 07:25:56 | -32.5 | Dark | Down | 35.2 | 159.5 | Up | 07:10:56 - 07:40:56 | 9043 |
Henderson | 07:25:54 | -33.0 | Dark | Down | 35.9 | 160.2 | Up | 07:10:54 - 07:40:54 | 9017 |
Lone Pine | 07:26:04 | -32.3 | Dark | Down | 34.5 | 156.9 | Up | 07:11:04 - 07:41:04 | 9002 |
Patrick | 07:25:50 | -33.7 | Dark | Down | 36.8 | 161.3 | Up | 07:10:50 - 07:40:50 | 8992 |
DCO | 07:25:47 | -34.0 | Dark | Down | 37.3 | 162.0 | Up | 07:10:47 - 07:40:47 | 8982 |
Searchlight/Boulder City | 07:25:54 | -33.6 | Dark | Down | 36.5 | 160.1 | Up | 07:10:54 - 07:40:54 | 8977 |
Kingman/Dolan Springs | 07:25:51 | -33.9 | Dark | Down | 37.0 | 161.0 | Up | 07:10:51 - 07:40:51 | 8973 |
Laughlin/Bullhead City | 07:25:53 | -33.9 | Dark | Down | 36.9 | 160.4 | Up | 07:10:53 - 07:40:53 | 8962 |
Mohave Valley | 07:25:52 | -34.2 | Dark | Down | 37.1 | 160.4 | Up | 07:10:52 - 07:40:52 | 8942 |
Lake Havasu City | 07:25:52 | -34.6 | Dark | Down | 37.6 | 160.5 | Up | 07:10:52 - 07:40:52 | 8917 |
Parker | 07:25:52 | -35.0 | Dark | Down | 37.9 | 160.5 | Up | 07:10:52 - 07:40:52 | 8892 |
CPSLO | 07:26:13 | -33.3 | Dark | Down | 34.8 | 153.7 | Up | 07:11:13 - 07:41:13 | 8859 |
Blythe | 07:25:53 | -35.5 | Dark | Down | 38.3 | 160.0 | Up | 07:10:53 - 07:40:53 | 8848 |
Idyllwild | 07:26:01 | -35.2 | Dark | Down | 37.6 | 157.6 | Up | 07:11:01 - 07:41:01 | 8818 |
Wildwood | 07:26:06 | -34.7 | Dark | Down | 36.6 | 155.6 | Up | 07:11:06 - 07:41:06 | 8809 |
Calipatria | 07:25:57 | -35.9 | Dark | Down | 38.5 | 158.8 | Up | 07:10:57 - 07:40:57 | 8794 |
Yuma | 07:25:53 | -36.4 | Dark | Down | 39.2 | 159.7 | Up | 07:10:53 - 07:40:53 | 8778 |
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 500885, (2020/05/24 07:24UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 13.09 167 35Eta Oph 17:10:22.7 -15:43:29 2.6 2.09 173 PPM 232348 16:56:02.0 -16:48:22 6.3 1.75 171 PPM 232432 16:59:23.4 -16:03:52 7.9 0.66 171 PPM 232493 17:02:02.9 -15:34:41 9.4 0.16 171 500885 17:01:42.9 -15:42:45 16.0 171 Positions are for J2000
Event circumstances last updated at 2019/06/07 23:41:24 UT
Marc W. Buie, Southwest Research Institute