Event between 11BN170 and star GA1160:03089413 with event index number of 1568756
Geocentric closest approach at 2020/03/22 06:15:21 UTC
J2000 position of star is 08:48:45.1 +27:14:15
Equinox of date position of star is 08:49:57.3 +27:09:43
Stellar brightness G=14.9,
use SENSEUP=128
Star is 148 degrees from the moon.
Moon is 4% illuminated.
TNO apparent brightness V=25.6
[RECON map]
TNO is 35.6 AU from the Sun
and 35.0 AU from the Earth.
The TNO is moving 12.1
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 255 seconds.
The 1-sigma cross-track error in the shadow position is
1301 km.
The sky-plane scale is
25372.4 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=269.2 km assuming a 5% albedo -- 5.0 sec chord
Diameter=109.9 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is SCATNEAR
Star training set for 11BN170, (2020/03/22 06:15UT) Object RA Dec mag sep mel Pollux 07:46:33.0 +27:58:33 1.1 14.07 135 48Iot Cnc 08:47:55.0 +28:41:05 4.0 1.59 147 PPM 099083 08:51:58.2 +26:45:01 8.0 0.61 149 PPM 099072 08:50:50.2 +26:43:21 8.6 0.48 149 PPM 099065 08:50:16.8 +27:13:52 10.6 0.10 148 11BN170 08:49:57.6 +27:09:42 14.9 149 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
3.5 sigma about the mid-time.
The median site spacing is 23.7 km
RECON observability=1.0 and success probability=18.1%
| 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 | 06:13:23 | -33.7 | Dark | Down | 61.5 | 224.4 | Up | 05:58:23 - 06:28:23 | 3118 |
| Kelowna | 06:13:23 | -34.0 | Dark | Down | 61.8 | 224.7 | Up | 05:58:23 - 06:28:23 | 3077 |
| Peachland | 06:13:23 | -34.0 | Dark | Down | 62.1 | 224.3 | Up | 05:58:23 - 06:28:23 | 3062 |
| Summerland | 06:13:23 | -34.1 | Dark | Down | 62.1 | 224.7 | Up | 05:58:23 - 06:28:23 | 3048 |
| Penticton | 06:13:22 | -34.2 | Dark | Down | 62.1 | 224.9 | Up | 05:58:22 - 06:28:22 | 3043 |
| Oliver | 06:13:21 | -34.5 | Dark | Down | 62.4 | 225.4 | Up | 05:58:21 - 06:28:21 | 3008 |
| Anarchist Mountain Observatory | 06:13:19 | -34.7 | Dark | Down | 62.4 | 226.0 | Up | 05:58:19 - 06:28:19 | 2994 |
| Tonasket | 06:13:19 | -35.0 | Dark | Down | 62.6 | 226.3 | Up | 05:58:19 - 06:28:19 | 2962 |
| Okanogan | 06:13:19 | -35.2 | Dark | Down | 63.0 | 226.5 | Up | 05:58:19 - 06:28:19 | 2927 |
| Brewster | 06:13:20 | -35.3 | Dark | Down | 63.2 | 226.5 | Up | 05:58:20 - 06:28:20 | 2896 |
| Victoria | 06:13:41 | -33.6 | Dark | Down | 64.5 | 219.8 | Up | 05:58:41 - 06:28:41 | 2890 |
| Manson/Chelan | 06:13:21 | -35.3 | Dark | Down | 63.6 | 226.2 | Up | 05:58:21 - 06:28:21 | 2870 |
| Entiat | 06:13:21 | -35.5 | Dark | Down | 63.7 | 226.4 | Up | 05:58:21 - 06:28:21 | 2847 |
| Wenatchee | 06:13:21 | -35.7 | Dark | Down | 64.0 | 226.7 | Up | 05:58:21 - 06:28:21 | 2820 |
| Ellensburg | 06:13:21 | -35.9 | Dark | Down | 64.4 | 226.9 | Up | 05:58:21 - 06:28:21 | 2775 |
| Yakima | 06:13:19 | -36.2 | Dark | Down | 64.6 | 227.5 | Up | 05:58:19 - 06:28:19 | 2733 |
| Pasco | 06:13:11 | -37.1 | Dark | Down | 64.1 | 230.4 | Up | 05:58:11 - 06:28:11 | 2721 |
| Toppenish/White Swan | 06:13:19 | -36.5 | Dark | Down | 64.7 | 228.1 | Up | 05:58:19 - 06:28:19 | 2714 |
| PNWRO | 06:13:09 | -37.4 | Dark | Down | 64.2 | 231.1 | Up | 05:58:09 - 06:28:09 | 2699 |
| Goldendale | 06:13:20 | -36.7 | Dark | Down | 65.3 | 228.3 | Up | 05:58:20 - 06:28:20 | 2651 |
| The Dalles | 06:13:21 | -36.7 | Dark | Down | 65.6 | 228.0 | Up | 05:58:21 - 06:28:21 | 2623 |
| Maupin | 06:13:20 | -37.1 | Dark | Down | 65.9 | 228.9 | Up | 05:58:20 - 06:28:20 | 2582 |
| Redmond | 06:13:18 | -37.8 | Dark | Down | 66.5 | 230.3 | Up | 05:58:18 - 06:28:18 | 2487 |
| Sisters | 06:13:21 | -37.6 | Dark | Down | 66.7 | 229.5 | Up | 05:58:21 - 06:28:21 | 2484 |
| Bend | 06:13:18 | -37.9 | Dark | Down | 66.7 | 230.4 | Up | 05:58:18 - 06:28:18 | 2463 |
| Oregon Observatory | 06:13:19 | -38.0 | Dark | Down | 66.9 | 230.5 | Up | 05:58:19 - 06:28:19 | 2443 |
| La Pine/Gilchrist | 06:13:19 | -38.1 | Dark | Down | 67.1 | 230.8 | Up | 05:58:19 - 06:28:19 | 2421 |
| North Lake | 06:13:13 | -38.7 | Dark | Down | 67.0 | 232.6 | Up | 05:58:13 - 06:28:13 | 2385 |
| Niwot | 06:11:31 | -47.1 | Dark | Down | 57.9 | 257.5 | Up | 05:56:31 - 06:26:31 | 2377 |
| SwRI | 06:11:31 | -47.2 | Dark | Down | 58.0 | 257.6 | Up | 05:56:31 - 06:26:31 | 2364 |
| Paisley | 06:13:10 | -39.3 | Dark | Down | 67.1 | 234.2 | Up | 05:58:10 - 06:28:10 | 2333 |
| Lakeview | 06:13:07 | -39.8 | Dark | Down | 67.3 | 235.5 | Up | 05:58:07 - 06:28:07 | 2284 |
| Klamath Falls | 06:13:16 | -39.1 | Dark | Down | 68.1 | 233.0 | Up | 05:58:16 - 06:28:16 | 2266 |
| Cedarville | 06:13:05 | -40.4 | Dark | Down | 67.6 | 237.1 | Up | 05:58:05 - 06:28:05 | 2218 |
| Fall River/Burney | 06:13:12 | -40.2 | Dark | Down | 68.6 | 236.1 | Up | 05:58:12 - 06:28:12 | 2148 |
| Susanville | 06:13:05 | -41.0 | Dark | Down | 68.5 | 238.6 | Up | 05:58:05 - 06:28:05 | 2093 |
| Gimple | 06:13:06 | -41.1 | Dark | Down | 68.7 | 238.9 | Up | 05:58:06 - 06:28:06 | 2061 |
| Greenville | 06:13:07 | -41.1 | Dark | Down | 68.8 | 238.8 | Up | 05:58:07 - 06:28:07 | 2060 |
| Quincy | 06:13:06 | -41.2 | Dark | Down | 68.9 | 239.2 | Up | 05:58:06 - 06:28:06 | 2038 |
| Portola | 06:13:03 | -41.5 | Dark | Down | 68.7 | 240.3 | Up | 05:58:03 - 06:28:03 | 2033 |
| Reno | 06:12:58 | -42.1 | Dark | Down | 68.4 | 241.9 | Up | 05:57:58 - 06:27:58 | 2015 |
| Carson City | 06:12:57 | -42.3 | Dark | Down | 68.5 | 242.7 | Up | 05:57:57 - 06:27:57 | 1978 |
| Yerington | 06:12:52 | -42.8 | Dark | Down | 68.2 | 244.1 | Up | 05:57:52 - 06:27:52 | 1968 |
| Gardnerville | 06:12:56 | -42.5 | Dark | Down | 68.6 | 243.3 | Up | 05:57:56 - 06:27:56 | 1953 |
| Hawthorne | 06:12:48 | -43.4 | Dark | Down | 68.0 | 245.8 | Up | 05:57:48 - 06:27:48 | 1928 |
| Tonopah | 06:12:38 | -44.4 | Dark | Down | 67.2 | 248.7 | Up | 05:57:38 - 06:27:38 | 1904 |
| Lee Vining | 06:12:50 | -43.6 | Dark | Down | 68.6 | 246.5 | Up | 05:57:50 - 06:27:50 | 1860 |
| Bishop | 06:12:44 | -44.4 | Dark | Down | 68.3 | 248.8 | Up | 05:57:44 - 06:27:44 | 1809 |
| Beatty | 06:12:32 | -45.6 | Dark | Down | 67.3 | 251.9 | Up | 05:57:32 - 06:27:32 | 1790 |
| Indian Springs | 06:12:24 | -46.3 | Dark | Down | 66.6 | 253.8 | Up | 05:57:24 - 06:27:24 | 1777 |
| Henderson | 06:12:18 | -47.1 | Dark | Down | 66.2 | 255.7 | Up | 05:57:18 - 06:27:18 | 1734 |
| Patrick | 06:12:09 | -48.1 | Dark | Down | 65.5 | 258.2 | Up | 05:57:09 - 06:27:09 | 1691 |
| Searchlight/Boulder City | 06:12:16 | -47.6 | Dark | Down | 66.3 | 257.0 | Up | 05:57:16 - 06:27:16 | 1675 |
| DCO | 06:12:04 | -48.7 | Dark | Down | 65.0 | 259.4 | Up | 05:57:04 - 06:27:04 | 1674 |
| Kingman/Dolan Springs | 06:12:10 | -48.2 | Dark | Down | 65.7 | 258.5 | Up | 05:57:10 - 06:27:10 | 1664 |
| Laughlin/Bullhead City | 06:12:13 | -48.0 | Dark | Down | 66.1 | 258.0 | Up | 05:57:13 - 06:27:13 | 1650 |
| Mohave Valley | 06:12:13 | -48.2 | Dark | Down | 66.1 | 258.6 | Up | 05:57:13 - 06:27:13 | 1621 |
| Lake Havasu City | 06:12:10 | -48.6 | Dark | Down | 66.0 | 259.7 | Up | 05:57:10 - 06:27:10 | 1584 |
| George/Scottsdale | 06:11:52 | -50.4 | Dark | Down | 64.2 | 263.4 | Up | 05:56:52 - 06:26:52 | 1556 |
| CPSLO | 06:12:55 | -44.8 | Dark | Down | 70.7 | 251.0 | Up | 05:57:55 - 06:27:55 | 1550 |
| Parker | 06:12:09 | -48.9 | Dark | Down | 66.0 | 260.5 | Up | 05:57:09 - 06:27:09 | 1547 |
| Blythe | 06:12:10 | -49.2 | Dark | Down | 66.4 | 261.5 | Up | 05:57:10 - 06:27:10 | 1485 |
| Wildwood | 06:12:38 | -46.8 | Dark | Down | 69.5 | 256.6 | Up | 05:57:38 - 06:27:38 | 1456 |
| Idyllwild | 06:12:24 | -48.0 | Dark | Down | 68.0 | 259.4 | Up | 05:57:24 - 06:27:24 | 1454 |
| Calipatria | 06:12:15 | -49.1 | Dark | Down | 67.2 | 261.8 | Up | 05:57:15 - 06:27:15 | 1413 |
| Yuma | 06:12:08 | -49.9 | Dark | Down | 66.5 | 263.5 | Up | 05:57:08 - 06:27:08 | 1386 |
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 11BN170, (2020/03/22 06:15UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 14.07 135 48Iot Cnc 08:46:41.8 +28:45:35 4.0 1.59 147 PPM 099083 08:50:46.0 +26:49:36 8.0 0.61 149 PPM 099072 08:49:38.0 +26:47:56 8.6 0.48 149 PPM 099065 08:49:04.4 +27:18:25 10.6 0.10 148 11BN170 08:48:45.1 +27:14:15 14.9 148 Positions are for J2000
Event circumstances last updated at 2020/02/25 21:26:04 UT
Marc W. Buie, Southwest Research Institute