Event between (499514) 10OO127 and star GA1020:19113774 with event index number of 301188
Geocentric closest approach at 2020/10/07 05:38:58 UTC
J2000 position of star is 22:12:16.2 +13:32:43
Equinox of date position of star is 22:13:16.8 +13:38:52
Stellar brightness G=15.6,
use SENSEUP=128
Star is 93 degrees from the moon.
Moon is 76% illuminated.
TNO apparent brightness V=26.6
[RECON map]
TNO is 45.1 AU from the Sun
and 44.4 AU from the Earth.
The TNO is moving 21.7
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 84 seconds.
The 1-sigma cross-track error in the shadow position is
1854 km.
The sky-plane scale is
32174.2 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=724.5 km assuming a 5% albedo -- 2.8 sec chord
Diameter=295.8 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is SCATNEAR
Star training set for 499514, (2020/10/07 05:39UT) Object RA Dec mag sep mel Deneb 20:42:08.4 +45:21:19 1.3 37.11 94 Markab 23:05:47.8 +15:19:02 2.5 12.82 80 PPM 141171 22:12:51.6 +16:08:37 6.5 2.50 92 PPM 141135 22:11:20.2 +13:51:05 8.4 0.51 93 PPM 141161 22:12:25.1 +13:32:54 10.0 0.23 93 499514 22:13:17.1 +13:38:54 15.6 92 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 19.8 km
RECON observability=1.0 and success probability=4.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 05:36:57 | -37.3 | Dark | Up | 54.9 | 186.9 | Up | 05:29:29 - 05:44:24 | 5936 |
| Clarence Fulton | 05:36:43 | -38.0 | Dark | Up | 52.7 | 193.1 | Up | 05:29:16 - 05:44:11 | 5866 |
| Peachland | 05:36:45 | -38.2 | Dark | Up | 53.3 | 192.6 | Up | 05:29:17 - 05:44:12 | 5850 |
| Kelowna | 05:36:44 | -38.2 | Dark | Up | 53.1 | 193.0 | Up | 05:29:16 - 05:44:11 | 5844 |
| Summerland | 05:36:46 | -38.3 | Dark | Up | 53.4 | 192.8 | Up | 05:29:18 - 05:44:13 | 5835 |
| Penticton | 05:36:45 | -38.4 | Dark | Up | 53.4 | 193.0 | Up | 05:29:17 - 05:44:12 | 5824 |
| Oliver | 05:36:45 | -38.7 | Dark | Up | 53.8 | 193.1 | Up | 05:29:18 - 05:44:13 | 5799 |
| Anarchist Mountain Observatory | 05:36:46 | -38.9 | Dark | Up | 53.9 | 193.4 | Up | 05:29:19 - 05:44:14 | 5777 |
| Tonasket | 05:36:47 | -39.1 | Dark | Up | 54.2 | 193.4 | Up | 05:29:20 - 05:44:15 | 5757 |
| Okanogan | 05:36:49 | -39.3 | Dark | Up | 54.6 | 193.3 | Up | 05:29:21 - 05:44:16 | 5739 |
| Manson/Chelan | 05:36:51 | -39.3 | Dark | Up | 55.1 | 192.5 | Up | 05:29:24 - 05:44:19 | 5731 |
| Brewster | 05:36:50 | -39.4 | Dark | Up | 54.9 | 193.1 | Up | 05:29:22 - 05:44:17 | 5729 |
| Entiat | 05:36:52 | -39.5 | Dark | Up | 55.3 | 192.5 | Up | 05:29:24 - 05:44:19 | 5718 |
| Wenatchee | 05:36:53 | -39.6 | Dark | Up | 55.6 | 192.4 | Up | 05:29:25 - 05:44:20 | 5704 |
| Ellensburg | 05:36:54 | -39.8 | Dark | Up | 56.0 | 192.1 | Up | 05:29:27 - 05:44:22 | 5684 |
| Yakima | 05:36:55 | -40.1 | Dark | Up | 56.4 | 192.3 | Up | 05:29:28 - 05:44:23 | 5654 |
| Toppenish/White Swan | 05:36:55 | -40.3 | Dark | Up | 56.6 | 192.6 | Up | 05:29:28 - 05:44:23 | 5630 |
| The Dalles | 05:36:59 | -40.5 | Dark | Up | 57.5 | 191.5 | Up | 05:29:32 - 05:44:27 | 5611 |
| Goldendale | 05:36:58 | -40.5 | Dark | Up | 57.2 | 192.1 | Up | 05:29:30 - 05:44:25 | 5610 |
| Maupin | 05:37:00 | -40.8 | Dark | Up | 57.9 | 191.8 | Up | 05:29:33 - 05:44:28 | 5574 |
| Pasco | 05:36:52 | -41.0 | Dark | Up | 56.5 | 194.9 | Up | 05:29:24 - 05:44:19 | 5557 |
| Sisters | 05:37:04 | -41.1 | Dark | Up | 58.8 | 191.2 | Up | 05:29:36 - 05:44:31 | 5534 |
| PNWRO | 05:36:53 | -41.3 | Dark | Up | 56.7 | 195.4 | Up | 05:29:25 - 05:44:20 | 5527 |
| Redmond | 05:37:03 | -41.4 | Dark | Up | 58.8 | 192.0 | Up | 05:29:35 - 05:44:30 | 5511 |
| Bend | 05:37:04 | -41.4 | Dark | Up | 59.0 | 191.8 | Up | 05:29:36 - 05:44:31 | 5502 |
| Oregon Observatory | 05:37:05 | -41.5 | Dark | Up | 59.2 | 191.6 | Up | 05:29:37 - 05:44:32 | 5496 |
| La Pine/Gilchrist | 05:37:05 | -41.6 | Dark | Up | 59.4 | 191.6 | Up | 05:29:38 - 05:44:33 | 5483 |
| North Lake | 05:37:05 | -42.2 | Dark | Up | 59.8 | 192.9 | Up | 05:29:38 - 05:44:33 | 5418 |
| Klamath Falls | 05:37:10 | -42.4 | Dark | Up | 60.9 | 191.6 | Up | 05:29:43 - 05:44:38 | 5387 |
| Paisley | 05:37:05 | -42.8 | Dark | Up | 60.2 | 193.8 | Up | 05:29:38 - 05:44:33 | 5357 |
| Lakeview | 05:37:06 | -43.2 | Dark | Up | 60.7 | 194.4 | Up | 05:29:39 - 05:44:34 | 5307 |
| Fall River/Burney | 05:37:13 | -43.4 | Dark | Up | 62.0 | 192.8 | Up | 05:29:45 - 05:44:40 | 5276 |
| Cedarville | 05:37:08 | -43.8 | Dark | Up | 61.3 | 195.1 | Up | 05:29:40 - 05:44:35 | 5246 |
| Susanville | 05:37:12 | -44.2 | Dark | Up | 62.5 | 194.7 | Up | 05:29:44 - 05:44:39 | 5185 |
| Greenville | 05:37:14 | -44.2 | Dark | Up | 62.8 | 194.2 | Up | 05:29:46 - 05:44:41 | 5180 |
| Gimple | 05:37:13 | -44.3 | Dark | Up | 62.8 | 194.4 | Up | 05:29:46 - 05:44:41 | 5175 |
| Quincy | 05:37:14 | -44.4 | Dark | Up | 63.0 | 194.3 | Up | 05:29:47 - 05:44:42 | 5163 |
| Portola | 05:37:13 | -44.7 | Dark | Up | 63.0 | 195.4 | Up | 05:29:46 - 05:44:41 | 5127 |
| Reno | 05:37:12 | -45.3 | Dark | Up | 63.1 | 196.9 | Up | 05:29:45 - 05:44:40 | 5070 |
| Carson City | 05:37:13 | -45.5 | Dark | Up | 63.5 | 197.1 | Up | 05:29:45 - 05:44:40 | 5040 |
| Gardnerville | 05:37:13 | -45.7 | Dark | Up | 63.7 | 197.4 | Up | 05:29:45 - 05:44:40 | 5018 |
| Yerington | 05:37:11 | -46.0 | Dark | Up | 63.5 | 198.6 | Up | 05:29:44 - 05:44:39 | 4989 |
| Hawthorne | 05:37:11 | -46.6 | Dark | Up | 63.8 | 200.0 | Up | 05:29:44 - 05:44:39 | 4922 |
| Lee Vining | 05:37:14 | -46.7 | Dark | Up | 64.5 | 199.4 | Up | 05:29:47 - 05:44:42 | 4903 |
| Bishop | 05:37:13 | -47.5 | Dark | Up | 64.8 | 201.4 | Up | 05:29:46 - 05:44:41 | 4813 |
| Tonopah | 05:37:09 | -47.8 | Dark | Up | 63.8 | 203.3 | Up | 05:29:42 - 05:44:37 | 4804 |
| CPSLO | 05:37:26 | -47.4 | Dark | Up | 67.4 | 197.8 | Up | 05:29:59 - 05:44:54 | 4777 |
| Beatty | 05:37:10 | -48.8 | Dark | Up | 64.7 | 205.3 | Up | 05:29:43 - 05:44:38 | 4682 |
| Indian Springs | 05:37:08 | -49.7 | Dark | Up | 64.6 | 207.8 | Up | 05:29:40 - 05:44:35 | 4594 |
| Wildwood | 05:37:24 | -49.5 | Dark | Up | 67.9 | 203.9 | Up | 05:29:56 - 05:44:51 | 4556 |
| Henderson | 05:37:09 | -50.5 | Dark | Up | 64.8 | 209.8 | Up | 05:29:41 - 05:44:36 | 4510 |
| Searchlight/Boulder City | 05:37:10 | -50.9 | Dark | Up | 65.3 | 210.6 | Up | 05:29:42 - 05:44:37 | 4458 |
| Idyllwild | 05:37:19 | -50.9 | Dark | Up | 67.5 | 208.7 | Up | 05:29:51 - 05:44:46 | 4414 |
| Laughlin/Bullhead City | 05:37:08 | -51.3 | Dark | Up | 65.4 | 211.6 | Up | 05:29:40 - 05:44:35 | 4413 |
| Patrick | 05:37:05 | -51.5 | Dark | Up | 64.9 | 212.8 | Up | 05:29:38 - 05:44:33 | 4394 |
| Mohave Valley | 05:37:09 | -51.5 | Dark | Up | 65.6 | 212.0 | Up | 05:29:41 - 05:44:36 | 4389 |
| Kingman/Dolan Springs | 05:37:06 | -51.6 | Dark | Up | 65.2 | 212.7 | Up | 05:29:38 - 05:44:33 | 4386 |
| Niwot | 05:36:28 | -52.0 | Dark | Up | 57.1 | 222.5 | Up | 05:29:00 - 05:43:55 | 4354 |
| SwRI | 05:36:28 | -52.0 | Dark | Up | 57.2 | 222.5 | Up | 05:29:00 - 05:43:55 | 4350 |
| Lake Havasu City | 05:37:08 | -51.9 | Dark | Up | 65.9 | 213.0 | Up | 05:29:41 - 05:44:36 | 4341 |
| DCO | 05:37:04 | -52.2 | Dark | Up | 64.8 | 214.6 | Up | 05:29:36 - 05:44:31 | 4328 |
| Parker | 05:37:09 | -52.2 | Dark | Up | 66.1 | 213.5 | Up | 05:29:42 - 05:44:37 | 4309 |
| Calipatria | 05:37:16 | -52.1 | Dark | Up | 67.5 | 212.1 | Up | 05:29:49 - 05:44:44 | 4293 |
| Blythe | 05:37:14 | -52.4 | Dark | Up | 66.7 | 213.6 | Up | 05:29:47 - 05:44:42 | 4281 |
| Yuma | 05:37:15 | -52.9 | Dark | Up | 67.5 | 214.7 | Up | 05:29:47 - 05:44:42 | 4204 |
| George/Scottsdale | 05:37:04 | -53.9 | Dark | Up | 65.3 | 219.0 | Up | 05:29:36 - 05:44:31 | 4134 |
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 499514, (2020/10/07 05:39UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 37.11 94 Markab 23:04:45.8 +15:12:18 2.5 12.82 80 PPM 141171 22:11:51.3 +16:02:26 6.5 2.50 92 PPM 141135 22:10:19.5 +13:44:55 8.4 0.51 93 PPM 141161 22:11:24.3 +13:26:43 10.0 0.23 93 499514 22:12:16.2 +13:32:43 15.6 93 Positions are for J2000
Event circumstances last updated at 2020/08/28 21:33:56 UT
Marc W. Buie, Southwest Research Institute