Event between (9142) Rhesus and star GA0900:04037633 with event index number of 1693019
Geocentric closest approach at 2020/03/05 08:47:21 UTC
J2000 position of star is 13:54:09.0 +01:53:07
Equinox of date position of star is 13:55:10.6 +01:47:12
Stellar brightness G=14.1,
use SENSEUP=64
Star is 100 degrees from the moon.
Moon is 75% illuminated.
Asteroid apparent brightness V=17.5
[RECON map]
Asteroid is 5.4 AU from the Sun
and 4.6 AU from the Earth.
The Asteroid is moving 11.4
km/sec on the sky relative to the star, or,
12.3 arcsec/hr.
The 1-sigma error in the time of the event is 16 seconds.
The 1-sigma cross-track error in the shadow position is
184 km.
The sky-plane scale is
3337.5 km/arcsec.
The Asteroid has an absolute magnitude Hv=10.0
Diameter=60.3 km assuming a 5% albedo -- 5.3 sec chord
Diameter=24.6 km assuming a 30% albedo -- 2.2 sec chord
Star training set for 9142, (2020/03/05 08:47UT) Object RA Dec mag sep mel Spica 13:26:15.5 -11:15:58 1.0 14.90 98 92 Vir 13:57:29.7 +00:57:10 6.0 1.02 101 PPM 160174 13:56:50.1 +01:25:18 7.7 0.55 100 PPM 160131 13:54:28.0 +01:50:01 9.8 0.18 99 9142 13:55:10.6 +01:47:12 14.1 100 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
5.0 sigma about the mid-time.
The median site spacing is 16.3 km
RECON observability=1.0 and success probability=97.6%
| 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 | 08:54:41 | -44.5 | Dark | Up | 35.1 | 141.5 | Up | 08:52:52 - 08:56:29 | 810 |
| Niwot | 08:53:07 | -48.9 | Dark | Up | 48.8 | 153.9 | Up | 08:51:19 - 08:54:56 | 790 |
| SwRI | 08:53:07 | -49.0 | Dark | Up | 48.9 | 153.7 | Up | 08:51:19 - 08:54:56 | 776 |
| Kelowna | 08:54:40 | -44.9 | Dark | Up | 35.4 | 141.2 | Up | 08:52:52 - 08:56:29 | 771 |
| Peachland | 08:54:41 | -45.1 | Dark | Up | 35.3 | 140.8 | Up | 08:52:52 - 08:56:29 | 748 |
| Summerland | 08:54:40 | -45.2 | Dark | Up | 35.5 | 140.8 | Up | 08:52:52 - 08:56:29 | 741 |
| Penticton | 08:54:40 | -45.3 | Dark | Up | 35.6 | 140.9 | Up | 08:52:51 - 08:56:28 | 740 |
| Oliver | 08:54:39 | -45.6 | Dark | Up | 35.9 | 140.8 | Up | 08:52:50 - 08:56:27 | 711 |
| Anarchist Mountain Observatory | 08:54:38 | -45.7 | Dark | Up | 36.1 | 140.9 | Up | 08:52:49 - 08:56:26 | 707 |
| Tonasket | 08:54:37 | -46.0 | Dark | Up | 36.3 | 140.7 | Up | 08:52:49 - 08:56:26 | 678 |
| Okanogan | 08:54:37 | -46.4 | Dark | Up | 36.5 | 140.3 | Up | 08:52:48 - 08:56:25 | 643 |
| Brewster | 08:54:37 | -46.7 | Dark | Up | 36.6 | 140.0 | Up | 08:52:48 - 08:56:25 | 611 |
| Manson/Chelan | 08:54:38 | -47.0 | Dark | Up | 36.6 | 139.5 | Up | 08:52:49 - 08:56:26 | 577 |
| Entiat | 08:54:37 | -47.2 | Dark | Up | 36.7 | 139.3 | Up | 08:52:49 - 08:56:26 | 555 |
| Wenatchee | 08:54:37 | -47.4 | Dark | Up | 36.9 | 139.0 | Up | 08:52:49 - 08:56:26 | 529 |
| Pasco | 08:54:29 | -48.3 | Dark | Up | 38.3 | 139.8 | Up | 08:52:41 - 08:56:18 | 492 |
| Ellensburg | 08:54:37 | -47.9 | Dark | Up | 37.1 | 138.6 | Up | 08:52:48 - 08:56:25 | 484 |
| PNWRO | 08:54:28 | -48.5 | Dark | Up | 38.6 | 139.9 | Up | 08:52:39 - 08:56:16 | 483 |
| Victoria | 08:54:51 | -46.8 | Dark | Up | 34.7 | 136.3 | Up | 08:53:02 - 08:56:39 | 479 |
| Yakima | 08:54:36 | -48.3 | Dark | Up | 37.4 | 138.4 | Up | 08:52:47 - 08:56:24 | 449 |
| Toppenish/White Swan | 08:54:34 | -48.5 | Dark | Up | 37.6 | 138.4 | Up | 08:52:46 - 08:56:23 | 439 |
| Goldendale | 08:54:35 | -49.1 | Dark | Up | 37.8 | 137.7 | Up | 08:52:46 - 08:56:23 | 372 |
| The Dalles | 08:54:35 | -49.3 | Dark | Up | 37.8 | 137.2 | Up | 08:52:47 - 08:56:24 | 335 |
| Maupin | 08:54:34 | -49.7 | Dark | Up | 38.2 | 137.0 | Up | 08:52:45 - 08:56:22 | 305 |
| Redmond | 08:54:31 | -50.6 | Dark | Up | 38.8 | 136.4 | Up | 08:52:43 - 08:56:20 | 224 |
| Sisters | 08:54:33 | -50.7 | Dark | Up | 38.6 | 136.0 | Up | 08:52:45 - 08:56:22 | 206 |
| Bend | 08:54:31 | -50.9 | Dark | Up | 38.9 | 136.2 | Up | 08:52:43 - 08:56:20 | 198 |
| Oregon Observatory | 08:54:31 | -51.1 | Dark | Up | 38.9 | 135.9 | Up | 08:52:43 - 08:56:20 | 177 |
| La Pine/Gilchrist | 08:54:31 | -51.3 | Dark | Up | 39.0 | 135.7 | Up | 08:52:42 - 08:56:19 | 157 |
| North Lake | 08:54:27 | -51.6 | Dark | Up | 39.7 | 136.1 | Up | 08:52:39 - 08:56:16 | 150 |
| Paisley | 08:54:24 | -52.0 | Dark | Up | 40.2 | 136.2 | Up | 08:52:36 - 08:56:13 | 122 |
| Lakeview | 08:54:22 | -52.5 | Dark | Up | 40.7 | 136.1 | Up | 08:52:33 - 08:56:10 | 89 |
| Cedarville | 08:54:19 | -53.1 | Dark | Up | 41.2 | 135.9 | Up | 08:52:30 - 08:56:07 | 42 |
| Klamath Falls | 08:54:28 | -52.7 | Dark | Up | 39.9 | 134.6 | Up | 08:52:39 - 08:56:16 | 18 |
| Fall River/Burney | 08:54:22 | -53.8 | Dark | Up | 40.9 | 134.2 | Up | 08:52:34 - 08:56:11 | -64 |
| Susanville | 08:54:17 | -54.2 | Dark | Up | 41.8 | 134.7 | Up | 08:52:28 - 08:56:05 | -78 |
| Tonopah | 08:53:53 | -55.5 | Dark | Up | 45.3 | 137.0 | Up | 08:52:05 - 08:55:42 | -87 |
| DCO | 08:53:22 | -56.6 | Dark | Up | 49.6 | 139.8 | Up | 08:51:34 - 08:55:11 | -88 |
| Patrick | 08:53:27 | -56.7 | Dark | Up | 49.0 | 139.1 | Up | 08:51:39 - 08:55:16 | -107 |
| Reno | 08:54:10 | -54.9 | Dark | Up | 42.8 | 135.0 | Up | 08:52:22 - 08:55:59 | -107 |
| Gimple | 08:54:17 | -54.6 | Dark | Up | 41.9 | 134.2 | Up | 08:52:28 - 08:56:05 | -114 |
| Greenville | 08:54:17 | -54.6 | Dark | Up | 41.8 | 134.2 | Up | 08:52:29 - 08:56:06 | -118 |
| Yerington | 08:54:05 | -55.2 | Dark | Up | 43.6 | 135.4 | Up | 08:52:17 - 08:55:54 | -118 |
| George/Scottsdale | 08:53:09 | -57.2 | Dark | Up | 51.3 | 140.3 | Up | 08:51:21 - 08:54:58 | -119 |
| Portola | 08:54:14 | -54.8 | Dark | Up | 42.3 | 134.5 | Up | 08:52:25 - 08:56:02 | -120 |
| Indian Springs | 08:53:40 | -56.4 | Dark | Up | 47.2 | 137.7 | Up | 08:51:52 - 08:55:29 | -121 |
| Henderson | 08:53:35 | -56.6 | Dark | Up | 47.9 | 138.2 | Up | 08:51:46 - 08:55:23 | -123 |
| Hawthorne | 08:54:01 | -55.5 | Dark | Up | 44.2 | 135.7 | Up | 08:52:13 - 08:55:50 | -128 |
| Quincy | 08:54:17 | -54.8 | Dark | Up | 42.0 | 134.0 | Up | 08:52:28 - 08:56:05 | -135 |
| Kingman/Dolan Springs | 08:53:27 | -56.9 | Dark | Up | 49.0 | 138.7 | Up | 08:51:38 - 08:55:15 | -137 |
| Carson City | 08:54:09 | -55.2 | Dark | Up | 43.1 | 134.8 | Up | 08:52:20 - 08:55:57 | -137 |
| Gardnerville | 08:54:08 | -55.4 | Dark | Up | 43.3 | 134.7 | Up | 08:52:19 - 08:55:56 | -155 |
| Beatty | 08:53:47 | -56.4 | Dark | Up | 46.4 | 136.7 | Up | 08:51:58 - 08:55:35 | -157 |
| Searchlight/Boulder City | 08:53:32 | -57.0 | Dark | Up | 48.4 | 137.8 | Up | 08:51:44 - 08:55:21 | -167 |
| Laughlin/Bullhead City | 08:53:29 | -57.2 | Dark | Up | 48.8 | 138.0 | Up | 08:51:41 - 08:55:18 | -170 |
| Mohave Valley | 08:53:28 | -57.4 | Dark | Up | 49.0 | 137.8 | Up | 08:51:39 - 08:55:16 | -192 |
| Lee Vining | 08:54:01 | -56.2 | Dark | Up | 44.3 | 134.7 | Up | 08:52:13 - 08:55:50 | -203 |
| Lake Havasu City | 08:53:25 | -57.7 | Dark | Up | 49.4 | 137.8 | Up | 08:51:36 - 08:55:13 | -210 |
| Bishop | 08:53:56 | -56.5 | Dark | Up | 45.1 | 135.1 | Up | 08:52:08 - 08:55:45 | -213 |
| Parker | 08:53:23 | -57.9 | Dark | Up | 49.7 | 137.5 | Up | 08:51:35 - 08:55:12 | -237 |
| Blythe | 08:53:22 | -58.5 | Dark | Up | 49.9 | 136.7 | Up | 08:51:34 - 08:55:11 | -299 |
| Yuma | 08:53:18 | -59.3 | Dark | Up | 50.5 | 135.9 | Up | 08:51:30 - 08:55:07 | -377 |
| Calipatria | 08:53:24 | -59.3 | Dark | Up | 49.7 | 135.2 | Up | 08:51:36 - 08:55:13 | -397 |
| Idyllwild | 08:53:33 | -59.3 | Dark | Up | 48.6 | 134.2 | Up | 08:51:44 - 08:55:21 | -419 |
| Wildwood | 08:53:43 | -59.6 | Dark | Up | 47.2 | 132.3 | Up | 08:51:55 - 08:55:32 | -502 |
| CPSLO | 08:53:57 | -59.1 | Dark | Up | 45.2 | 131.0 | Up | 08:52:09 - 08:55:46 | -518 |
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 9142, (2020/03/05 08:47UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 14.90 98 92 Vir 13:56:27.8 +01:03:03 6.0 1.02 101 PPM 160174 13:55:48.4 +01:31:11 7.7 0.55 100 PPM 160131 13:53:26.4 +01:55:56 9.8 0.18 99 9142 13:54:09.0 +01:53:07 14.1 100 Positions are for J2000
Event circumstances last updated at 2020/02/28 03:08:22 UT
Marc W. Buie, Southwest Research Institute