Event between 03YR179 and star GA1100:03149035 with event index number of 250521
Geocentric closest approach at 2020/03/16 08:43:04 UTC
J2000 position of star is 09:03:26.7 +21:49:11
Equinox of date position of star is 09:04:33.6 +21:44:30
Stellar brightness G=14.3,
use SENSEUP=64
Star is 134 degrees from the moon.
Moon is 51% illuminated.
TNO apparent brightness V=23.5
[RECON map]
TNO is 41.1 AU from the Sun
and 40.4 AU from the Earth.
The TNO is moving 17.2
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 207 seconds.
The 1-sigma cross-track error in the shadow position is
1530 km.
The sky-plane scale is
29319.9 km/arcsec.
The TNO has an absolute magnitude Hv=7.3
Diameter=210.9 km assuming a 5% albedo -- 12.3 sec chord
Diameter=86.1 km assuming a 30% albedo -- 5.0 sec chord
Dynamical classification is CLASSICAL
Star training set for 03YR179, (2020/03/16 08:43UT) Object RA Dec mag sep mel Regulus 10:09:26.8 +11:52:04 1.3 18.37 116 77Xi Cnc 09:10:31.0 +21:57:45 5.1 1.39 132 PPM 099290 09:06:09.8 +22:45:06 7.9 1.08 133 PPM 099263 09:03:54.7 +21:26:19 8.8 0.34 134 PPM 099260 09:03:46.2 +21:53:15 11.2 0.24 134 03YR179 09:04:36.3 +21:44:19 14.3 133 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 12.4 km
RECON observability=1.0 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 | 08:40:50 | -41.0 | Dark | Down | 42.4 | 252.4 | Up | 08:25:50 - 08:55:50 | 11283 |
Summerland | 08:40:47 | -41.4 | Dark | Down | 42.6 | 252.4 | Up | 08:25:47 - 08:55:47 | 11254 |
Penticton | 08:40:48 | -41.4 | Dark | Down | 42.6 | 252.6 | Up | 08:25:48 - 08:55:48 | 11252 |
Okanagan Falls | 08:40:47 | -41.6 | Dark | Down | 42.7 | 252.7 | Up | 08:25:47 - 08:55:47 | 11238 |
Oliver | 08:40:46 | -41.8 | Dark | Down | 42.7 | 252.9 | Up | 08:25:46 - 08:55:46 | 11227 |
Anarchist Mountain Observatory | 08:40:46 | -41.9 | Dark | Down | 42.6 | 253.2 | Up | 08:25:46 - 08:55:46 | 11221 |
Oroville | 08:40:43 | -42.0 | Dark | Down | 42.7 | 253.2 | Up | 08:25:43 - 08:55:43 | 11213 |
Tonasket | 08:40:43 | -42.2 | Dark | Down | 42.8 | 253.4 | Up | 08:25:43 - 08:55:43 | 11196 |
Okanogan | 08:40:42 | -42.6 | Dark | Down | 43.0 | 253.6 | Up | 08:25:42 - 08:55:42 | 11168 |
Brewster | 08:40:41 | -42.9 | Dark | Down | 43.2 | 253.6 | Up | 08:25:41 - 08:55:41 | 11141 |
Manson/Chelan | 08:40:42 | -43.1 | Dark | Down | 43.5 | 253.5 | Up | 08:25:42 - 08:55:42 | 11115 |
Entiat | 08:40:41 | -43.3 | Dark | Down | 43.6 | 253.6 | Up | 08:25:41 - 08:55:41 | 11096 |
Wenatchee | 08:40:39 | -43.6 | Dark | Down | 43.7 | 253.7 | Up | 08:25:39 - 08:55:39 | 11074 |
Niwot | 08:39:31 | -46.3 | Dark | Up | 34.0 | 271.0 | Up | 08:24:31 - 08:54:31 | 11049 |
SwRI | 08:39:31 | -46.4 | Dark | Up | 34.1 | 271.1 | Up | 08:24:31 - 08:54:31 | 11037 |
Ellensburg | 08:40:39 | -44.0 | Dark | Down | 44.0 | 253.9 | Up | 08:25:39 - 08:55:39 | 11036 |
Pasco | 08:40:32 | -44.6 | Dark | Down | 43.2 | 255.9 | Up | 08:25:32 - 08:55:32 | 11027 |
PNWRO | 08:40:31 | -44.8 | Dark | Down | 43.1 | 256.3 | Up | 08:25:31 - 08:55:31 | 11015 |
Yakima | 08:40:38 | -44.4 | Dark | Down | 44.1 | 254.3 | Up | 08:25:38 - 08:55:38 | 11005 |
Toppenish/White Swan | 08:40:35 | -44.6 | Dark | Down | 44.0 | 254.6 | Up | 08:25:35 - 08:55:35 | 10995 |
George/Umatilla | 08:40:29 | -44.9 | Dark | Down | 43.5 | 256.0 | Up | 08:25:29 - 08:55:29 | 10994 |
Goldendale | 08:40:34 | -45.2 | Dark | Down | 44.5 | 254.7 | Up | 08:25:34 - 08:55:34 | 10939 |
The Dalles | 08:40:33 | -45.5 | Dark | Down | 44.8 | 254.6 | Up | 08:25:33 - 08:55:33 | 10910 |
Maupin | 08:40:31 | -45.9 | Dark | Down | 44.8 | 255.1 | Up | 08:25:31 - 08:55:31 | 10881 |
Madras/Culver | 08:40:29 | -46.4 | Dark | Down | 45.0 | 255.6 | Up | 08:25:29 - 08:55:29 | 10837 |
Redmond | 08:40:28 | -46.8 | Dark | Down | 45.1 | 255.9 | Up | 08:25:28 - 08:55:28 | 10808 |
Sisters | 08:40:28 | -46.8 | Dark | Down | 45.4 | 255.5 | Up | 08:25:28 - 08:55:28 | 10796 |
Bend | 08:40:26 | -47.0 | Dark | Down | 45.3 | 256.0 | Up | 08:25:26 - 08:55:26 | 10786 |
Oregon Observatory | 08:40:27 | -47.2 | Dark | Down | 45.4 | 256.0 | Up | 08:25:27 - 08:55:27 | 10768 |
La Pine/Gilchrist | 08:40:27 | -47.4 | Dark | Down | 45.5 | 256.2 | Up | 08:25:27 - 08:55:27 | 10750 |
North Lake | 08:40:22 | -47.8 | Dark | Down | 45.2 | 257.1 | Up | 08:25:22 - 08:55:22 | 10736 |
Paisley | 08:40:19 | -48.3 | Dark | Down | 45.1 | 258.0 | Up | 08:25:19 - 08:55:19 | 10704 |
Lakeview | 08:40:15 | -48.8 | Dark | Down | 45.0 | 258.6 | Up | 08:25:15 - 08:55:15 | 10670 |
Chiloquin | 08:40:23 | -48.6 | Dark | Down | 46.0 | 257.0 | Up | 08:25:23 - 08:55:23 | 10649 |
Klamath Falls | 08:40:20 | -48.9 | Dark | Down | 46.1 | 257.4 | Up | 08:25:20 - 08:55:20 | 10624 |
Cedarville | 08:40:13 | -49.4 | Dark | Down | 45.0 | 259.4 | Up | 08:25:13 - 08:55:13 | 10623 |
Tulelake | 08:40:18 | -49.1 | Dark | Down | 45.9 | 257.9 | Up | 08:25:18 - 08:55:18 | 10613 |
Fall River/Burney | 08:40:11 | -50.0 | Dark | Down | 46.0 | 258.9 | Up | 08:25:11 - 08:55:11 | 10541 |
Susanville | 08:40:09 | -50.5 | Dark | Down | 45.6 | 260.1 | Up | 08:25:09 - 08:55:09 | 10516 |
Gimple | 08:40:09 | -50.8 | Dark | Down | 45.8 | 260.2 | Up | 08:25:09 - 08:55:09 | 10485 |
Greenville | 08:40:09 | -50.8 | Dark | Down | 45.9 | 260.1 | Up | 08:25:09 - 08:55:09 | 10483 |
Reno | 08:40:03 | -51.3 | Dark | Down | 45.1 | 261.6 | Up | 08:25:03 - 08:55:03 | 10474 |
Portola | 08:40:07 | -51.1 | Dark | Down | 45.6 | 260.8 | Up | 08:25:07 - 08:55:07 | 10473 |
Quincy | 08:40:08 | -51.0 | Dark | Down | 45.9 | 260.3 | Up | 08:25:08 - 08:55:08 | 10466 |
Yerington | 08:39:59 | -51.7 | Dark | Down | 44.7 | 262.6 | Up | 08:24:59 - 08:54:59 | 10452 |
Tonopah | 08:39:49 | -52.2 | Dark | Down | 43.3 | 264.8 | Up | 08:24:49 - 08:54:49 | 10446 |
Carson City | 08:40:02 | -51.6 | Dark | Down | 45.2 | 262.0 | Up | 08:25:02 - 08:55:02 | 10445 |
Hawthorne | 08:39:55 | -52.0 | Dark | Down | 44.4 | 263.4 | Up | 08:24:55 - 08:54:55 | 10433 |
Gardnerville | 08:40:01 | -51.8 | Dark | Down | 45.2 | 262.2 | Up | 08:25:01 - 08:55:01 | 10426 |
Indian Springs | 08:39:38 | -53.2 | Dark | Down | 42.3 | 267.2 | Up | 08:24:38 - 08:54:38 | 10380 |
Lee Vining | 08:39:54 | -52.7 | Dark | Down | 44.8 | 263.6 | Up | 08:24:54 - 08:54:54 | 10367 |
Beatty | 08:39:43 | -53.2 | Dark | Down | 43.1 | 266.2 | Up | 08:24:43 - 08:54:43 | 10367 |
Henderson | 08:39:35 | -53.5 | Dark | Down | 41.7 | 268.1 | Up | 08:24:35 - 08:54:35 | 10362 |
DCO | 08:39:25 | -53.8 | Dark | Down | 40.3 | 270.0 | Up | 08:24:25 - 08:54:25 | 10354 |
Patrick | 08:39:28 | -53.7 | Dark | Down | 40.9 | 269.3 | Up | 08:24:28 - 08:54:28 | 10352 |
Bishop | 08:39:50 | -53.1 | Dark | Down | 44.3 | 264.7 | Up | 08:24:50 - 08:54:50 | 10344 |
Kingman/Dolan Springs | 08:39:29 | -54.0 | Dark | Down | 41.0 | 269.4 | Up | 08:24:29 - 08:54:29 | 10326 |
Searchlight/Boulder City | 08:39:32 | -54.0 | Dark | Down | 41.7 | 268.6 | Up | 08:24:32 - 08:54:32 | 10316 |
Laughlin/Bullhead City | 08:39:30 | -54.2 | Dark | Down | 41.4 | 269.1 | Up | 08:24:30 - 08:54:30 | 10304 |
Lone Pine | 08:39:46 | -53.8 | Dark | Down | 44.1 | 265.7 | Up | 08:24:46 - 08:54:46 | 10292 |
Mohave Valley | 08:39:29 | -54.4 | Dark | Down | 41.4 | 269.4 | Up | 08:24:29 - 08:54:29 | 10281 |
Lake Havasu City | 08:39:26 | -54.7 | Dark | Down | 41.3 | 269.8 | Up | 08:24:26 - 08:54:26 | 10257 |
Parker | 08:39:25 | -55.0 | Dark | Down | 41.2 | 270.2 | Up | 08:24:25 - 08:54:25 | 10228 |
Blythe | 08:39:24 | -55.6 | Dark | Down | 41.5 | 270.5 | Up | 08:24:24 - 08:54:24 | 10171 |
Idyllwild | 08:39:31 | -56.2 | Dark | Down | 43.2 | 269.2 | Up | 08:24:31 - 08:54:31 | 10098 |
Calipatria | 08:39:24 | -56.4 | Dark | Down | 42.3 | 270.4 | Up | 08:24:24 - 08:54:24 | 10092 |
Yuma | 08:39:19 | -56.5 | Dark | Down | 41.5 | 271.2 | Up | 08:24:19 - 08:54:19 | 10090 |
CPSLO | 08:39:48 | -55.5 | Dark | Down | 46.3 | 265.3 | Up | 08:24:48 - 08:54:48 | 10083 |
Wildwood | 08:39:38 | -56.3 | Dark | Down | 44.8 | 267.8 | Up | 08:24:38 - 08:54:38 | 10056 |
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 03YR179, (2020/03/16 08:43UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 18.37 116 77Xi Cnc 09:09:21.5 +22:02:44 5.1 1.39 132 PPM 099290 09:04:59.8 +22:49:59 7.9 1.08 133 PPM 099263 09:02:45.1 +21:31:09 8.8 0.34 134 PPM 099260 09:02:36.5 +21:58:05 11.2 0.24 134 03YR179 09:03:26.7 +21:49:11 14.3 134 Positions are for J2000
Event circumstances last updated at 2019/06/07 23:22:21 UT
Marc W. Buie, Southwest Research Institute