Event between 99CC119 and star GA0840:04204331 with event index number of 332623
Geocentric closest approach at 2020/04/11 04:28:14 UTC
J2000 position of star is 12:50:27.8 -05:22:46
Equinox of date position of star is 12:51:29.2 -05:29:13
Stellar brightness G=12.7,
use SENSEUP=32
Star is 51 degrees from the moon.
Moon is 87% illuminated.
TNO apparent brightness V=23.5
[RECON map]
TNO is 43.0 AU from the Sun
and 42.0 AU from the Earth.
The TNO is moving 24.9
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 203 seconds.
The 1-sigma cross-track error in the shadow position is
3041 km.
The sky-plane scale is
30481.9 km/arcsec.
The TNO has an absolute magnitude Hv=7.2
Diameter=221.8 km assuming a 5% albedo -- 8.9 sec chord
Diameter=90.6 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CLASSICAL
Star training set for 99CC119, (2020/04/11 04:28UT) Object RA Dec mag sep mel Spica 13:26:15.9 -11:16:00 1.0 10.35 41 PPM 195939 12:54:41.0 -04:20:05 6.5 1.40 51 PPM 195901 12:52:43.4 -06:14:35 8.4 0.81 51 PPM 195886 12:51:42.0 -05:39:20 9.5 0.17 51 99CC119 12:51:30.8 -05:29:23 12.7 51 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
4.4 sigma about the mid-time.
The median site spacing is 21.3 km
RECON observability=1.0 and success probability=6.9%
Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
Clarence Fulton | 04:31:19 | -16.2 | AT | Down | 22.6 | 131.2 | Low | 04:16:19 - 04:46:19 | 5717 |
Kelowna | 04:31:20 | -16.3 | AT | Down | 22.8 | 130.9 | Low | 04:16:20 - 04:46:20 | 5681 |
Summerland | 04:31:21 | -16.4 | AT | Down | 22.8 | 130.7 | Low | 04:16:21 - 04:46:21 | 5654 |
Penticton | 04:31:20 | -16.5 | AT | Down | 22.9 | 130.8 | Low | 04:16:20 - 04:46:20 | 5651 |
Oliver | 04:31:20 | -16.7 | AT | Down | 23.2 | 130.6 | Low | 04:16:20 - 04:46:20 | 5622 |
Anarchist Mountain Observatory | 04:31:21 | -16.9 | AT | Down | 23.4 | 130.8 | Low | 04:16:21 - 04:46:21 | 5612 |
Tonasket | 04:31:20 | -17.0 | AT | Down | 23.5 | 130.6 | Low | 04:16:20 - 04:46:20 | 5584 |
Okanogan | 04:31:22 | -17.1 | AT | Down | 23.7 | 130.4 | Low | 04:16:22 - 04:46:22 | 5552 |
Brewster | 04:31:23 | -17.2 | AT | Down | 23.8 | 130.1 | Low | 04:16:23 - 04:46:23 | 5523 |
Manson/Chelan | 04:31:24 | -17.1 | AT | Down | 23.7 | 129.7 | Low | 04:16:24 - 04:46:24 | 5496 |
Entiat | 04:31:23 | -17.2 | AT | Down | 23.8 | 129.5 | Low | 04:16:23 - 04:46:23 | 5476 |
Victoria | 04:31:29 | -14.9 | AT | Down | 21.6 | 126.9 | Low | 04:16:29 - 04:46:29 | 5472 |
Wenatchee | 04:31:25 | -17.3 | AT | Down | 23.9 | 129.4 | Low | 04:16:25 - 04:46:25 | 5451 |
Ellensburg | 04:31:26 | -17.4 | AT | Down | 24.1 | 129.0 | Low | 04:16:26 - 04:46:26 | 5410 |
Pasco | 04:31:23 | -18.6 | Dark | Down | 25.3 | 130.1 | Low | 04:16:23 - 04:46:23 | 5381 |
Yakima | 04:31:26 | -17.6 | AT | Down | 24.3 | 128.9 | Low | 04:16:26 - 04:46:26 | 5374 |
PNWRO | 04:31:23 | -18.9 | Dark | Down | 25.6 | 130.2 | Low | 04:16:23 - 04:46:23 | 5366 |
Toppenish/White Swan | 04:31:25 | -17.8 | AT | Down | 24.5 | 128.9 | Low | 04:16:25 - 04:46:25 | 5359 |
Goldendale | 04:31:27 | -17.9 | AT | Down | 24.7 | 128.3 | Low | 04:16:27 - 04:46:27 | 5300 |
The Dalles | 04:31:28 | -17.8 | AT | Down | 24.6 | 127.9 | Low | 04:16:28 - 04:46:28 | 5270 |
Niwot | 04:30:55 | -30.2 | Dark | Down | 36.7 | 141.3 | Up | 04:15:55 - 04:45:55 | 5256 |
SwRI | 04:30:55 | -30.3 | Dark | Down | 36.7 | 141.2 | Up | 04:15:55 - 04:45:55 | 5243 |
Maupin | 04:31:28 | -18.1 | Dark | Down | 24.9 | 127.9 | Low | 04:16:28 - 04:46:28 | 5236 |
Redmond | 04:31:29 | -18.5 | Dark | Down | 25.4 | 127.5 | Low | 04:16:29 - 04:46:29 | 5153 |
Sisters | 04:31:29 | -18.3 | Dark | Down | 25.2 | 127.1 | Low | 04:16:29 - 04:46:29 | 5144 |
Bend | 04:31:30 | -18.6 | Dark | Down | 25.5 | 127.3 | Low | 04:16:30 - 04:46:30 | 5130 |
Oregon Observatory | 04:31:29 | -18.6 | Dark | Down | 25.5 | 127.1 | Low | 04:16:29 - 04:46:29 | 5111 |
La Pine/Gilchrist | 04:31:30 | -18.7 | Dark | Down | 25.6 | 126.9 | Low | 04:16:30 - 04:46:30 | 5091 |
North Lake | 04:31:29 | -19.3 | Dark | Down | 26.2 | 127.3 | Low | 04:16:29 - 04:46:29 | 5067 |
Paisley | 04:31:29 | -19.8 | Dark | Down | 26.7 | 127.4 | Low | 04:16:29 - 04:46:29 | 5027 |
Lakeview | 04:31:29 | -20.2 | Dark | Down | 27.2 | 127.4 | Low | 04:16:29 - 04:46:29 | 4986 |
Klamath Falls | 04:31:33 | -19.3 | Dark | Down | 26.3 | 126.1 | Low | 04:16:33 - 04:46:33 | 4950 |
Cedarville | 04:31:29 | -20.6 | Dark | Down | 27.7 | 127.3 | Low | 04:16:29 - 04:46:29 | 4930 |
Fall River/Burney | 04:31:32 | -20.1 | Dark | Down | 27.2 | 126.0 | Low | 04:16:32 - 04:46:32 | 4852 |
Susanville | 04:31:32 | -20.9 | Dark | Down | 28.0 | 126.4 | Low | 04:16:32 - 04:46:32 | 4814 |
Gimple | 04:31:32 | -21.0 | Dark | Down | 28.1 | 126.1 | Low | 04:16:32 - 04:46:32 | 4782 |
Greenville | 04:31:32 | -20.9 | Dark | Down | 28.0 | 126.0 | Low | 04:16:32 - 04:46:32 | 4780 |
Portola | 04:31:32 | -21.4 | Dark | Down | 28.5 | 126.3 | Low | 04:16:32 - 04:46:32 | 4763 |
Quincy | 04:31:32 | -21.0 | Dark | Down | 28.2 | 125.9 | Low | 04:16:32 - 04:46:32 | 4761 |
Reno | 04:31:30 | -21.9 | Dark | Down | 29.1 | 126.7 | Low | 04:16:30 - 04:46:30 | 4756 |
Yerington | 04:31:29 | -22.7 | Dark | Down | 29.8 | 127.1 | Low | 04:16:29 - 04:46:29 | 4724 |
Carson City | 04:31:29 | -22.2 | Dark | Down | 29.3 | 126.6 | Low | 04:16:29 - 04:46:29 | 4723 |
Gardnerville | 04:31:30 | -22.3 | Dark | Down | 29.5 | 126.5 | Low | 04:16:30 - 04:46:30 | 4702 |
Hawthorne | 04:31:28 | -23.3 | Dark | Down | 30.4 | 127.3 | Up | 04:16:28 - 04:46:28 | 4696 |
Tonopah | 04:31:24 | -24.4 | Dark | Down | 31.6 | 128.4 | Up | 04:16:24 - 04:46:24 | 4694 |
Lee Vining | 04:31:29 | -23.3 | Dark | Down | 30.5 | 126.6 | Up | 04:16:29 - 04:46:29 | 4628 |
Indian Springs | 04:31:21 | -26.3 | Dark | Down | 33.5 | 129.1 | Up | 04:16:21 - 04:46:21 | 4602 |
Beatty | 04:31:24 | -25.4 | Dark | Down | 32.6 | 128.2 | Up | 04:16:24 - 04:46:24 | 4599 |
Bishop | 04:31:28 | -24.1 | Dark | Down | 31.3 | 127.0 | Up | 04:16:28 - 04:46:28 | 4593 |
Henderson | 04:31:20 | -27.0 | Dark | Down | 34.2 | 129.4 | Up | 04:16:20 - 04:46:20 | 4573 |
Patrick | 04:31:18 | -28.1 | Dark | Down | 35.3 | 130.1 | Up | 04:16:18 - 04:46:18 | 4550 |
DCO | 04:31:15 | -28.8 | Dark | Down | 35.9 | 130.6 | Up | 04:16:15 - 04:46:15 | 4544 |
Kingman/Dolan Springs | 04:31:18 | -28.1 | Dark | Down | 35.3 | 129.8 | Up | 04:16:18 - 04:46:18 | 4523 |
Searchlight/Boulder City | 04:31:20 | -27.4 | Dark | Down | 34.6 | 129.2 | Up | 04:16:20 - 04:46:20 | 4521 |
Laughlin/Bullhead City | 04:31:19 | -27.8 | Dark | Down | 35.0 | 129.3 | Up | 04:16:19 - 04:46:19 | 4503 |
Mohave Valley | 04:31:19 | -28.0 | Dark | Down | 35.2 | 129.2 | Up | 04:16:19 - 04:46:19 | 4478 |
George/Scottsdale | 04:31:13 | -30.5 | Dark | Down | 37.7 | 131.1 | Up | 04:16:13 - 04:46:13 | 4455 |
Lake Havasu City | 04:31:19 | -28.4 | Dark | Down | 35.6 | 129.2 | Up | 04:16:19 - 04:46:19 | 4448 |
Parker | 04:31:19 | -28.6 | Dark | Down | 35.9 | 129.0 | Up | 04:16:19 - 04:46:19 | 4415 |
Blythe | 04:31:19 | -28.7 | Dark | Down | 36.0 | 128.5 | Up | 04:16:19 - 04:46:19 | 4355 |
CPSLO | 04:31:33 | -23.6 | Dark | Down | 31.0 | 124.0 | Up | 04:16:33 - 04:46:33 | 4327 |
Idyllwild | 04:31:25 | -27.2 | Dark | Down | 34.5 | 126.6 | Up | 04:16:25 - 04:46:25 | 4299 |
Calipatria | 04:31:22 | -28.3 | Dark | Down | 35.7 | 127.3 | Up | 04:16:22 - 04:46:22 | 4277 |
Wildwood | 04:31:29 | -25.7 | Dark | Down | 33.1 | 125.2 | Up | 04:16:29 - 04:46:29 | 4273 |
Yuma | 04:31:19 | -29.2 | Dark | Down | 36.5 | 127.9 | Up | 04:16:19 - 04:46:19 | 4265 |
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 99CC119, (2020/04/11 04:28UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 10.35 41 PPM 195939 12:53:38.1 -04:13:30 6.5 1.40 51 PPM 195901 12:51:40.4 -06:07:59 8.4 0.81 51 PPM 195886 12:50:39.1 -05:32:43 9.5 0.17 51 99CC119 12:50:27.8 -05:22:46 12.7 51 Positions are for J2000
Event circumstances last updated at 2019/10/15 22:15:51 UT
Marc W. Buie, Southwest Research Institute