Event between (535022) 14WN509 and star GA0900:03688057 with event index number of 1615541
Geocentric closest approach at 2020/04/28 05:09:13 UTC
J2000 position of star is 10:37:02.2 +01:42:32
Equinox of date position of star is 10:38:02.4 +01:36:26
Stellar brightness G=16.7,
use SENSEUP=128
Star is 64 degrees from the moon.
Moon is 23% illuminated.
TNO apparent brightness V=22.5
[RECON map]
TNO is 41.3 AU from the Sun
and 40.8 AU from the Earth.
The TNO is moving 11.7
km/sec on the sky relative to the star, or,
1.4 arcsec/hr.
The 1-sigma error in the time of the event is 243 seconds.
The 1-sigma cross-track error in the shadow position is
2153 km.
The sky-plane scale is
29568.6 km/arcsec.
The TNO has an absolute magnitude Hv=6.2
Diameter=346.7 km assuming a 5% albedo -- 29.6 sec chord
Diameter=141.6 km assuming a 30% albedo -- 12.1 sec chord
Dynamical classification is SCATNEAR
Star training set for 535022, (2020/04/28 05:09UT) Object RA Dec mag sep mel Regulus 10:09:27.2 +11:52:02 1.3 12.48 54 30Bet Sex 10:31:19.8 -00:44:31 4.8 2.89 64 PPM 157029 10:39:20.0 +01:08:15 8.5 0.56 65 PPM 157002 10:37:20.4 +01:37:51 9.4 0.19 64 535022 10:38:04.9 +01:36:11 16.7 65 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
3.7 sigma about the mid-time.
The median site spacing is 11.6 km
RECON observability=1.0 and success probability=0.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| SwRI | 05:09:26 | -30.1 | Dark | Up | 43.3 | 222.5 | Up | 04:54:26 - 05:24:26 | 8286 |
| Kelowna | 05:11:35 | -16.5 | AT | Up | 39.9 | 200.9 | Up | 04:56:35 - 05:26:35 | 8205 |
| Penticton | 05:11:35 | -16.7 | AT | Up | 40.3 | 200.8 | Up | 04:56:35 - 05:26:35 | 8180 |
| Summerland | 05:11:36 | -16.6 | AT | Up | 40.3 | 200.6 | Up | 04:56:36 - 05:26:36 | 8179 |
| Okanagan Falls | 05:11:33 | -16.8 | AT | Up | 40.5 | 200.8 | Up | 04:56:33 - 05:26:33 | 8170 |
| Oliver | 05:11:35 | -16.9 | AT | Up | 40.7 | 200.9 | Up | 04:56:35 - 05:26:35 | 8163 |
| Anarchist Mountain Observatory | 05:11:29 | -17.1 | AT | Up | 40.8 | 201.2 | Up | 04:56:29 - 05:26:29 | 8162 |
| Oroville | 05:11:29 | -17.1 | AT | Up | 40.9 | 201.1 | Up | 04:56:29 - 05:26:29 | 8155 |
| Tonasket | 05:11:31 | -17.3 | AT | Up | 41.1 | 201.2 | Up | 04:56:31 - 05:26:31 | 8144 |
| Okanogan | 05:11:25 | -17.5 | AT | Up | 41.4 | 201.1 | Up | 04:56:25 - 05:26:25 | 8121 |
| Brewster | 05:11:25 | -17.6 | AT | Up | 41.7 | 200.9 | Up | 04:56:25 - 05:26:25 | 8099 |
| Manson/Chelan | 05:11:28 | -17.6 | AT | Up | 42.0 | 200.5 | Up | 04:56:28 - 05:26:28 | 8073 |
| Wenatchee | 05:11:28 | -17.9 | AT | Up | 42.5 | 200.4 | Up | 04:56:28 - 05:26:28 | 8041 |
| Pasco | 05:11:17 | -19.3 | Dark | Up | 43.3 | 202.4 | Up | 04:56:17 - 05:26:17 | 8030 |
| PNWRO | 05:11:10 | -19.5 | Dark | Up | 43.5 | 202.7 | Up | 04:56:10 - 05:26:10 | 8026 |
| Ellensburg | 05:11:25 | -18.1 | Dark | Up | 42.9 | 200.3 | Up | 04:56:25 - 05:26:25 | 8010 |
| George/Umatilla | 05:11:10 | -19.4 | Dark | Up | 43.7 | 202.1 | Up | 04:56:10 - 05:26:10 | 8002 |
| Yakima | 05:11:21 | -18.3 | Dark | Up | 43.3 | 200.3 | Up | 04:56:21 - 05:26:21 | 7988 |
| Toppenish/White Swan | 05:11:21 | -18.6 | Dark | Up | 43.5 | 200.6 | Up | 04:56:21 - 05:26:21 | 7983 |
| Goldendale | 05:11:17 | -18.8 | Dark | Up | 44.1 | 200.2 | Up | 04:56:17 - 05:26:17 | 7935 |
| The Dalles | 05:11:21 | -18.8 | Dark | Up | 44.4 | 199.8 | Up | 04:56:21 - 05:26:21 | 7906 |
| Maupin | 05:11:17 | -19.1 | Dark | Up | 44.8 | 200.1 | Up | 04:56:17 - 05:26:17 | 7888 |
| Madras/Culver | 05:11:16 | -19.5 | Dark | Up | 45.3 | 200.2 | Up | 04:56:16 - 05:26:16 | 7855 |
| Redmond | 05:11:15 | -19.7 | Dark | Up | 45.7 | 200.3 | Up | 04:56:15 - 05:26:15 | 7832 |
| Sisters | 05:11:14 | -19.5 | Dark | Up | 45.7 | 199.7 | Up | 04:56:14 - 05:26:14 | 7816 |
| Bend | 05:11:14 | -19.8 | Dark | Up | 45.9 | 200.1 | Up | 04:56:14 - 05:26:14 | 7813 |
| Oregon Observatory | 05:11:10 | -19.8 | Dark | Up | 46.1 | 200.0 | Up | 04:56:10 - 05:26:10 | 7798 |
| North Lake | 05:11:07 | -20.6 | Dark | Up | 46.6 | 201.0 | Up | 04:56:07 - 05:26:07 | 7784 |
| La Pine/Gilchrist | 05:11:12 | -20.0 | Dark | Up | 46.3 | 200.0 | Up | 04:56:12 - 05:26:12 | 7783 |
| Paisley | 05:11:01 | -21.1 | Dark | Up | 47.0 | 201.7 | Up | 04:56:01 - 05:26:01 | 7768 |
| Lakeview | 05:11:00 | -21.6 | Dark | Up | 47.4 | 202.1 | Up | 04:56:00 - 05:26:00 | 7746 |
| Cedarville | 05:10:56 | -22.1 | Dark | Up | 48.0 | 202.6 | Up | 04:55:56 - 05:25:56 | 7714 |
| Chiloquin | 05:11:08 | -20.6 | Dark | Up | 47.4 | 199.9 | Up | 04:56:08 - 05:26:08 | 7701 |
| Klamath Falls | 05:11:10 | -20.8 | Dark | Up | 47.7 | 200.1 | Up | 04:56:10 - 05:26:10 | 7684 |
| Tulelake | 05:11:04 | -21.2 | Dark | Up | 47.9 | 200.6 | Up | 04:56:04 - 05:26:04 | 7681 |
| Tonopah | 05:10:21 | -26.2 | Dark | Up | 50.2 | 208.4 | Up | 04:55:21 - 05:25:21 | 7637 |
| Fall River/Burney | 05:10:56 | -21.8 | Dark | Up | 48.8 | 201.1 | Up | 04:55:56 - 05:25:56 | 7629 |
| Patrick | 05:09:46 | -29.8 | Dark | Up | 51.1 | 214.7 | Up | 04:54:46 - 05:24:46 | 7628 |
| Susanville | 05:10:50 | -22.7 | Dark | Up | 49.1 | 202.4 | Up | 04:55:50 - 05:25:50 | 7624 |
| Henderson | 05:10:21 | -28.8 | Dark | Up | 51.0 | 212.9 | Up | 04:55:21 - 05:25:21 | 7622 |
| Indian Springs | 05:10:21 | -28.1 | Dark | Up | 50.8 | 211.5 | Up | 04:55:21 - 05:25:21 | 7620 |
| Reno | 05:10:40 | -23.7 | Dark | Up | 49.7 | 204.0 | Up | 04:55:40 - 05:25:40 | 7609 |
| Kingman/Dolan Springs | 05:09:44 | -29.9 | Dark | Up | 51.4 | 214.6 | Up | 04:54:44 - 05:24:44 | 7605 |
| Yerington | 05:10:32 | -24.5 | Dark | Up | 50.0 | 205.1 | Up | 04:55:32 - 05:25:32 | 7605 |
| Hawthorne | 05:10:31 | -25.1 | Dark | Up | 50.2 | 206.2 | Up | 04:55:31 - 05:25:31 | 7600 |
| Gimple | 05:10:49 | -22.8 | Dark | Up | 49.5 | 202.2 | Up | 04:55:49 - 05:25:49 | 7597 |
| Portola | 05:10:46 | -23.2 | Dark | Up | 49.7 | 202.9 | Up | 04:55:46 - 05:25:46 | 7595 |
| Greenville | 05:10:53 | -22.7 | Dark | Up | 49.5 | 202.1 | Up | 04:55:53 - 05:25:53 | 7593 |
| Beatty | 05:10:21 | -27.2 | Dark | Up | 51.0 | 209.8 | Up | 04:55:21 - 05:25:21 | 7587 |
| Carson City | 05:10:39 | -24.0 | Dark | Up | 50.0 | 204.2 | Up | 04:55:39 - 05:25:39 | 7587 |
| Searchlight/Boulder City | 05:09:49 | -29.2 | Dark | Up | 51.5 | 213.2 | Up | 04:54:49 - 05:24:49 | 7581 |
| Quincy | 05:10:49 | -22.9 | Dark | Up | 49.7 | 202.2 | Up | 04:55:49 - 05:25:49 | 7581 |
| Laughlin/Bullhead City | 05:09:47 | -29.6 | Dark | Up | 51.6 | 213.9 | Up | 04:54:47 - 05:24:47 | 7578 |
| Gardnerville | 05:10:35 | -24.2 | Dark | Up | 50.2 | 204.3 | Up | 04:55:35 - 05:25:35 | 7574 |
| Mohave Valley | 05:09:43 | -29.8 | Dark | Up | 51.8 | 214.0 | Up | 04:54:43 - 05:24:43 | 7561 |
| Lake Havasu City | 05:09:40 | -30.3 | Dark | Up | 52.1 | 214.7 | Up | 04:54:40 - 05:24:40 | 7547 |
| Lee Vining | 05:10:28 | -25.2 | Dark | Up | 50.9 | 205.7 | Up | 04:55:28 - 05:25:28 | 7541 |
| Bishop | 05:10:21 | -26.0 | Dark | Up | 51.2 | 207.1 | Up | 04:55:21 - 05:25:21 | 7537 |
| Parker | 05:09:37 | -30.5 | Dark | Up | 52.3 | 214.9 | Up | 04:54:37 - 05:24:37 | 7525 |
| Lone Pine | 05:10:22 | -26.8 | Dark | Up | 51.8 | 208.0 | Up | 04:55:22 - 05:25:22 | 7504 |
| Blythe | 05:09:35 | -30.8 | Dark | Up | 52.9 | 214.9 | Up | 04:54:35 - 05:24:35 | 7476 |
| Yuma | 05:09:31 | -31.4 | Dark | Up | 53.7 | 215.5 | Up | 04:54:31 - 05:24:31 | 7412 |
| Calipatria | 05:09:40 | -30.6 | Dark | Up | 53.8 | 213.9 | Up | 04:54:40 - 05:24:40 | 7397 |
| Idyllwild | 05:09:48 | -29.5 | Dark | Up | 53.8 | 211.7 | Up | 04:54:48 - 05:24:48 | 7379 |
| Wildwood | 05:10:21 | -28.2 | Dark | Up | 54.2 | 208.8 | Up | 04:55:21 - 05:25:21 | 7313 |
| CPSLO | 05:10:23 | -26.2 | Dark | Up | 53.9 | 204.8 | Up | 04:55:23 - 05:25:23 | 7290 |
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 535022, (2020/04/28 05:09UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 12.48 54 30Bet Sex 10:30:17.4 -00:38:14 4.8 2.89 64 PPM 157029 10:38:17.3 +01:14:38 8.5 0.56 65 PPM 157002 10:36:17.6 +01:44:12 9.4 0.19 64 535022 10:37:02.2 +01:42:32 16.7 64 Positions are for J2000
Event circumstances last updated at 2019/07/02 02:37:27 UT
Marc W. Buie, Southwest Research Institute