Event between (79360) Sila-Nunam and star GA1020:03328201 with event index number of 339310
Geocentric closest approach at 2019/05/25 05:45:07 UTC
J2000 position of star is 09:32:02.9 +13:53:58
Equinox of date position of star is 09:33:05.5 +13:48:51
Stellar brightness G=16.8,
use SENSEUP=128
Star is 176 degrees from the moon.
Moon is 64% illuminated.
TNO apparent brightness V=21.8
[RECON map]
TNO is 43.4 AU from the Sun
and 43.7 AU from the Earth.
The TNO is moving 10.6
km/sec on the sky relative to the star, or,
1.2 arcsec/hr.
The 1-sigma error in the time of the event is 432 seconds.
The 1-sigma cross-track error in the shadow position is
2269 km.
The sky-plane scale is
31663.0 km/arcsec.
The TNO has an absolute magnitude Hv=5.3
Diameter=524.8 km assuming a 5% albedo -- 49.3 sec chord
Diameter=214.3 km assuming a 30% albedo -- 20.1 sec chord
Dynamical classification is CLASSICAL
Star training set for 79360, (2019/05/25 05:45UT) Object RA Dec mag sep mel Regulus 10:09:24.2 +11:52:18 1.3 9.06 168 5Xi Leo 09:32:59.4 +11:12:47 5.0 2.60 173 PPM 126596 09:36:12.9 +13:59:18 7.5 0.77 175 PPM 126553 09:33:32.2 +13:45:36 9.1 0.12 176 79360 09:33:06.4 +13:48:47 16.8 175 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
2.1 sigma about the mid-time.
The median site spacing is 10.6 km
RECON observability=0.9 and success probability=10.5%
Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
Kelowna | 05:48:44 | -13.9 | AT | Down | 25.1 | 261.6 | Low | 05:33:44 - 06:03:44 | -289 |
Summerland | 05:48:44 | -13.8 | AT | Down | 25.4 | 261.4 | Low | 05:33:44 - 06:03:44 | -300 |
Penticton | 05:48:47 | -14.2 | AT | Down | 25.3 | 261.7 | Low | 05:33:47 - 06:03:47 | -311 |
Okanagan Falls | 05:48:49 | -14.3 | AT | Down | 25.3 | 261.8 | Low | 05:33:49 - 06:03:49 | -321 |
Oliver | 05:48:50 | -14.5 | AT | Down | 25.3 | 261.9 | Low | 05:33:50 - 06:03:50 | -329 |
Anarchist Mountain Observatory | 05:48:52 | -14.7 | AT | Down | 25.2 | 262.1 | Low | 05:33:52 - 06:03:52 | -333 |
Oroville | 05:48:53 | -14.8 | AT | Down | 25.3 | 262.1 | Low | 05:33:53 - 06:03:53 | -338 |
Tonasket | 05:48:55 | -15.0 | AT | Down | 25.3 | 262.2 | Low | 05:33:55 - 06:03:55 | -350 |
Okanogan | 05:48:58 | -15.2 | AT | Down | 25.4 | 262.2 | Low | 05:33:58 - 06:03:58 | -371 |
Brewster | 05:49:00 | -15.4 | AT | Down | 25.6 | 262.2 | Low | 05:34:00 - 06:04:00 | -390 |
Manson/Chelan | 05:49:01 | -15.4 | AT | Down | 25.9 | 262.0 | Low | 05:34:01 - 06:04:01 | -410 |
Entiat | 05:49:03 | -15.6 | AT | Down | 26.0 | 262.1 | Low | 05:34:03 - 06:04:03 | -423 |
Wenatchee | 05:49:06 | -15.8 | AT | Down | 26.0 | 262.1 | Low | 05:34:06 - 06:04:06 | -439 |
Ellensburg | 05:49:08 | -16.1 | AT | Down | 26.2 | 262.2 | Low | 05:34:08 - 06:04:08 | -467 |
Pasco | 05:49:18 | -17.2 | AT | Down | 25.3 | 263.7 | Low | 05:34:18 - 06:04:18 | -472 |
Niwot | 05:50:33 | -27.0 | Dark | Down | 15.0 | 275.7 | Really Low | 05:35:33 - 06:05:33 | -478 |
PNWRO | 05:49:21 | -17.5 | AT | Down | 25.2 | 264.0 | Low | 05:34:21 - 06:04:21 | -479 |
SwRI | 05:50:33 | -27.1 | Dark | Down | 15.0 | 275.7 | Really Low | 05:35:33 - 06:05:33 | -486 |
Yakima | 05:49:12 | -16.4 | AT | Down | 26.3 | 262.4 | Low | 05:34:12 - 06:04:12 | -490 |
George/Umatilla | 05:49:21 | -17.4 | AT | Down | 25.5 | 263.7 | Low | 05:34:21 - 06:04:21 | -496 |
Toppenish/White Swan | 05:49:14 | -16.7 | AT | Down | 26.2 | 262.6 | Low | 05:34:14 - 06:04:14 | -497 |
Goldendale | 05:49:18 | -17.0 | AT | Down | 26.6 | 262.6 | Low | 05:34:18 - 06:04:18 | -539 |
The Dalles | 05:49:19 | -17.0 | AT | Down | 26.8 | 262.4 | Low | 05:34:19 - 06:04:19 | -561 |
Maupin | 05:49:23 | -17.4 | AT | Down | 26.8 | 262.7 | Low | 05:34:23 - 06:04:23 | -582 |
Madras/Culver | 05:49:28 | -17.9 | AT | Down | 26.9 | 263.0 | Low | 05:34:28 - 06:04:28 | -615 |
Redmond | 05:49:31 | -18.2 | Dark | Down | 27.0 | 263.1 | Low | 05:34:31 - 06:04:31 | -637 |
Sisters | 05:49:30 | -18.0 | AT | Down | 27.2 | 262.8 | Low | 05:34:30 - 06:04:30 | -647 |
Bend | 05:49:34 | -18.3 | Dark | Down | 27.1 | 263.1 | Low | 05:34:34 - 06:04:34 | -654 |
Oregon Observatory | 05:49:34 | -18.4 | Dark | Down | 27.2 | 263.1 | Low | 05:34:34 - 06:04:34 | -667 |
La Pine/Gilchrist | 05:49:36 | -18.6 | Dark | Down | 27.3 | 263.2 | Low | 05:34:36 - 06:04:36 | -681 |
North Lake | 05:49:41 | -19.2 | Dark | Down | 26.9 | 263.9 | Low | 05:34:41 - 06:04:41 | -691 |
Paisley | 05:49:47 | -19.8 | Dark | Down | 26.6 | 264.4 | Low | 05:34:47 - 06:04:47 | -714 |
Lakeview | 05:49:51 | -20.3 | Dark | Down | 26.5 | 264.8 | Low | 05:34:51 - 06:04:51 | -740 |
Chiloquin | 05:49:45 | -19.4 | Dark | Down | 27.6 | 263.5 | Low | 05:34:45 - 06:04:45 | -758 |
Cedarville | 05:49:58 | -20.9 | Dark | Down | 26.4 | 265.3 | Low | 05:34:58 - 06:04:58 | -775 |
Klamath Falls | 05:49:48 | -19.7 | Dark | Down | 27.6 | 263.8 | Low | 05:34:48 - 06:04:48 | -777 |
Tulelake | 05:49:50 | -20.0 | Dark | Down | 27.4 | 264.2 | Low | 05:34:50 - 06:04:50 | -785 |
Fall River/Burney | 05:50:00 | -20.8 | Dark | Down | 27.4 | 264.7 | Low | 05:35:00 - 06:05:00 | -840 |
Susanville | 05:50:06 | -21.7 | Dark | Down | 26.9 | 265.6 | Low | 05:35:06 - 06:05:06 | -859 |
Gimple | 05:50:08 | -21.8 | Dark | Down | 27.0 | 265.6 | Low | 05:35:08 - 06:05:08 | -883 |
Greenville | 05:50:08 | -21.8 | Dark | Down | 27.1 | 265.5 | Low | 05:35:08 - 06:05:08 | -885 |
Reno | 05:50:16 | -22.8 | Dark | Down | 26.2 | 266.6 | Low | 05:35:16 - 06:05:16 | -891 |
Portola | 05:50:13 | -22.3 | Dark | Down | 26.7 | 266.0 | Low | 05:35:13 - 06:05:13 | -893 |
Quincy | 05:50:09 | -22.0 | Dark | Down | 27.1 | 265.6 | Low | 05:35:09 - 06:05:09 | -898 |
Yerington | 05:50:22 | -23.5 | Dark | Down | 25.7 | 267.3 | Low | 05:35:22 - 06:05:22 | -908 |
Carson City | 05:50:19 | -23.1 | Dark | Down | 26.2 | 266.8 | Low | 05:35:19 - 06:05:19 | -914 |
Tonopah | 05:50:34 | -25.1 | Dark | Down | 24.2 | 269.0 | Low | 05:35:34 - 06:05:34 | -914 |
Hawthorne | 05:50:28 | -24.2 | Dark | Down | 25.3 | 267.9 | Low | 05:35:28 - 06:05:28 | -924 |
Gardnerville | 05:50:21 | -23.3 | Dark | Down | 26.2 | 266.9 | Low | 05:35:21 - 06:05:21 | -929 |
Indian Springs | 05:50:50 | -27.1 | Dark | Down | 22.9 | 270.6 | Low | 05:35:50 - 06:05:50 | -970 |
Lee Vining | 05:50:32 | -24.4 | Dark | Down | 25.7 | 267.8 | Low | 05:35:32 - 06:05:32 | -975 |
Beatty | 05:50:45 | -26.3 | Dark | Down | 23.8 | 269.8 | Low | 05:35:45 - 06:05:45 | -978 |
Henderson | 05:50:56 | -27.8 | Dark | Down | 22.4 | 271.3 | Low | 05:35:56 - 06:05:56 | -986 |
Bishop | 05:50:39 | -25.3 | Dark | Down | 25.1 | 268.6 | Low | 05:35:39 - 06:05:39 | -994 |
Patrick | 05:51:03 | -28.8 | Dark | Down | 21.4 | 272.2 | Low | 05:36:03 - 06:06:03 | -997 |
DCO | 05:51:06 | -29.3 | Dark | Down | 20.8 | 272.7 | Low | 05:36:06 - 06:06:06 | -998 |
Kingman/Dolan Springs | 05:51:04 | -28.9 | Dark | Down | 21.5 | 272.2 | Low | 05:36:04 - 06:06:04 | -1018 |
Searchlight/Boulder City | 05:51:02 | -28.3 | Dark | Down | 22.3 | 271.5 | Low | 05:36:02 - 06:06:02 | -1024 |
Laughlin/Bullhead City | 05:51:03 | -28.7 | Dark | Down | 22.0 | 271.9 | Low | 05:36:03 - 06:06:03 | -1034 |
Lone Pine | 05:50:44 | -26.1 | Dark | Down | 24.9 | 269.2 | Low | 05:35:44 - 06:05:44 | -1036 |
Mohave Valley | 05:51:06 | -29.0 | Dark | Down | 21.9 | 272.0 | Low | 05:36:06 - 06:06:06 | -1053 |
Lake Havasu City | 05:51:10 | -29.4 | Dark | Down | 21.7 | 272.3 | Low | 05:36:10 - 06:06:10 | -1073 |
Parker | 05:51:12 | -29.8 | Dark | Down | 21.7 | 272.5 | Low | 05:36:12 - 06:06:12 | -1097 |
Blythe | 05:51:17 | -30.1 | Dark | Down | 21.9 | 272.5 | Low | 05:36:17 - 06:06:17 | -1143 |
Idyllwild | 05:51:13 | -29.1 | Dark | Down | 23.7 | 271.3 | Low | 05:36:13 - 06:06:13 | -1197 |
CPSLO | 05:50:49 | -26.0 | Dark | Down | 27.0 | 268.3 | Low | 05:35:49 - 06:05:49 | -1204 |
Calipatria | 05:51:19 | -30.2 | Dark | Down | 22.6 | 272.2 | Low | 05:36:19 - 06:06:19 | -1205 |
Yuma | 05:51:24 | -30.9 | Dark | Down | 21.8 | 272.9 | Low | 05:36:24 - 06:06:24 | -1210 |
Wildwood | 05:51:05 | -28.0 | Dark | Down | 25.3 | 270.1 | Low | 05:36:05 - 06:06:05 | -1227 |
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 79360, (2019/05/25 05:45UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 9.06 168 5Xi Leo 09:31:56.6 +11:17:58 5.0 2.60 173 PPM 126596 09:35:09.5 +14:04:32 7.5 0.77 175 PPM 126553 09:32:28.8 +13:50:48 9.1 0.12 176 79360 09:32:02.9 +13:53:58 16.8 176 Positions are for J2000
Event circumstances last updated at 2019/02/12 08:06:57 UT
Marc W. Buie, Southwest Research Institute