Event between (307982) 04PG115 and star GA0960:17229154 with event index number of 361708
Geocentric closest approach at 2020/10/15 09:30:46 UTC
J2000 position of star is 22:24:14.3 +06:44:23
Equinox of date position of star is 22:25:16.5 +06:50:42
Stellar brightness G=16.8,
use SENSEUP=128
Star is 150 degrees from the moon.
Moon is 3% illuminated.
TNO apparent brightness V=26.0
[RECON map]
TNO is 39.0 AU from the Sun
and 38.2 AU from the Earth.
The TNO is moving 17.2
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 88 seconds.
The 1-sigma cross-track error in the shadow position is
1462 km.
The sky-plane scale is
27740.8 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=631.0 km assuming a 5% albedo -- 3.5 sec chord
Diameter=257.6 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is SCATNEAR
Star training set for 307982, (2020/10/15 09:31UT) Object RA Dec mag sep mel Markab 23:05:47.9 +15:19:03 2.5 13.05 154 30 Peg 22:21:30.3 +05:53:41 5.3 1.34 150 PPM 172974 22:23:37.0 +06:34:45 7.7 0.49 150 PPM 173025 22:26:12.5 +06:57:57 8.7 0.26 150 307982 22:25:16.9 +06:50:44 16.8 150 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 26.0 km
RECON observability=0.2 and success probability=3.8%
| 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 | 09:24:56 | -43.4 | Dark | Down | 17.8 | 258.9 | Really Low | 09:17:04 - 09:32:48 | -3352 |
| Kelowna | 09:24:56 | -43.8 | Dark | Down | 17.9 | 258.9 | Really Low | 09:17:04 - 09:32:48 | -3393 |
| Peachland | 09:24:56 | -44.0 | Dark | Down | 18.1 | 258.7 | Really Low | 09:17:04 - 09:32:48 | -3401 |
| Summerland | 09:24:55 | -44.1 | Dark | Down | 18.1 | 258.8 | Really Low | 09:17:03 - 09:32:47 | -3419 |
| Penticton | 09:24:56 | -44.1 | Dark | Down | 18.0 | 258.9 | Really Low | 09:17:04 - 09:32:48 | -3427 |
| Oliver | 09:24:55 | -44.4 | Dark | Down | 18.1 | 259.1 | Really Low | 09:17:03 - 09:32:47 | -3466 |
| Anarchist Mountain Observatory | 09:24:56 | -44.4 | Dark | Down | 18.0 | 259.3 | Really Low | 09:17:04 - 09:32:48 | -3487 |
| Victoria | 09:25:01 | -46.3 | Dark | Down | 20.7 | 256.2 | Low | 09:17:09 - 09:32:53 | -3488 |
| Tonasket | 09:24:55 | -44.7 | Dark | Down | 18.1 | 259.3 | Really Low | 09:17:03 - 09:32:47 | -3520 |
| Okanogan | 09:24:56 | -45.0 | Dark | Down | 18.3 | 259.3 | Really Low | 09:17:04 - 09:32:48 | -3555 |
| Brewster | 09:24:56 | -45.3 | Dark | Down | 18.5 | 259.2 | Really Low | 09:17:04 - 09:32:48 | -3582 |
| Manson/Chelan | 09:24:57 | -45.7 | Dark | Down | 18.7 | 259.0 | Really Low | 09:17:05 - 09:32:49 | -3600 |
| Entiat | 09:24:56 | -45.9 | Dark | Down | 18.8 | 259.0 | Really Low | 09:17:04 - 09:32:48 | -3624 |
| Wenatchee | 09:24:56 | -46.1 | Dark | Down | 19.0 | 259.0 | Really Low | 09:17:04 - 09:32:48 | -3650 |
| Ellensburg | 09:24:57 | -46.5 | Dark | Down | 19.2 | 259.0 | Really Low | 09:17:05 - 09:32:49 | -3692 |
| Yakima | 09:24:57 | -46.9 | Dark | Down | 19.3 | 259.1 | Really Low | 09:17:05 - 09:32:49 | -3737 |
| Toppenish/White Swan | 09:24:56 | -47.0 | Dark | Down | 19.2 | 259.3 | Really Low | 09:17:04 - 09:32:48 | -3762 |
| Pasco | 09:24:54 | -46.5 | Dark | Down | 18.4 | 260.3 | Really Low | 09:17:02 - 09:32:46 | -3791 |
| Goldendale | 09:24:58 | -47.6 | Dark | Down | 19.6 | 259.2 | Really Low | 09:17:06 - 09:32:50 | -3818 |
| PNWRO | 09:24:54 | -46.6 | Dark | Down | 18.2 | 260.6 | Really Low | 09:17:02 - 09:32:46 | -3821 |
| The Dalles | 09:24:59 | -47.9 | Dark | Down | 19.9 | 259.0 | Really Low | 09:17:07 - 09:32:51 | -3837 |
| Maupin | 09:24:58 | -48.2 | Dark | Down | 19.9 | 259.2 | Really Low | 09:17:06 - 09:32:50 | -3885 |
| Sisters | 09:24:57 | -49.1 | Dark | Down | 20.4 | 259.2 | Low | 09:17:05 - 09:32:49 | -3974 |
| Redmond | 09:24:57 | -49.0 | Dark | Down | 20.1 | 259.5 | Low | 09:17:05 - 09:32:49 | -3983 |
| Bend | 09:24:57 | -49.2 | Dark | Down | 20.3 | 259.5 | Low | 09:17:05 - 09:32:49 | -4004 |
| Oregon Observatory | 09:24:57 | -49.4 | Dark | Down | 20.4 | 259.4 | Low | 09:17:05 - 09:32:49 | -4021 |
| La Pine/Gilchrist | 09:24:57 | -49.6 | Dark | Down | 20.5 | 259.5 | Low | 09:17:05 - 09:32:49 | -4043 |
| North Lake | 09:24:58 | -49.7 | Dark | Down | 20.1 | 260.1 | Low | 09:17:06 - 09:32:50 | -4099 |
| Paisley | 09:24:57 | -49.9 | Dark | Down | 19.9 | 260.5 | Really Low | 09:17:05 - 09:32:49 | -4164 |
| Klamath Falls | 09:24:59 | -50.9 | Dark | Down | 20.9 | 259.8 | Low | 09:17:07 - 09:32:51 | -4198 |
| Lakeview | 09:24:58 | -50.2 | Dark | Down | 19.9 | 260.8 | Really Low | 09:17:06 - 09:32:50 | -4222 |
| Cedarville | 09:24:58 | -50.7 | Dark | Down | 19.9 | 261.2 | Really Low | 09:17:06 - 09:32:50 | -4297 |
| Fall River/Burney | 09:25:00 | -51.6 | Dark | Down | 20.8 | 260.5 | Low | 09:17:08 - 09:32:52 | -4333 |
| Susanville | 09:24:57 | -51.7 | Dark | Down | 20.4 | 261.3 | Low | 09:17:05 - 09:32:49 | -4412 |
| Greenville | 09:24:59 | -52.1 | Dark | Down | 20.6 | 261.2 | Low | 09:17:07 - 09:32:51 | -4438 |
| Gimple | 09:24:59 | -52.0 | Dark | Down | 20.6 | 261.2 | Low | 09:17:07 - 09:32:51 | -4439 |
| Quincy | 09:24:59 | -52.2 | Dark | Down | 20.7 | 261.2 | Low | 09:17:07 - 09:32:51 | -4460 |
| Portola | 09:24:57 | -52.1 | Dark | Down | 20.3 | 261.6 | Low | 09:17:05 - 09:32:49 | -4481 |
| Reno | 09:24:57 | -52.0 | Dark | Down | 19.9 | 262.1 | Really Low | 09:17:05 - 09:32:49 | -4519 |
| Niwot | 09:24:41 | -42.9 | Dark | Down | 8.7 | 271.5 | Really Low | 09:16:49 - 09:32:33 | -4543 |
| SwRI | 09:24:39 | -43.0 | Dark | Down | 8.7 | 271.5 | Really Low | 09:16:47 - 09:32:31 | -4555 |
| Carson City | 09:24:59 | -52.2 | Dark | Down | 19.9 | 262.3 | Really Low | 09:17:07 - 09:32:51 | -4558 |
| Gardnerville | 09:24:58 | -52.4 | Dark | Down | 19.9 | 262.4 | Really Low | 09:17:06 - 09:32:50 | -4586 |
| Yerington | 09:24:56 | -52.0 | Dark | Down | 19.4 | 262.8 | Really Low | 09:17:04 - 09:32:48 | -4588 |
| Hawthorne | 09:24:57 | -52.1 | Dark | Down | 19.1 | 263.3 | Really Low | 09:17:05 - 09:32:49 | -4646 |
| Lee Vining | 09:24:57 | -52.7 | Dark | Down | 19.5 | 263.2 | Really Low | 09:17:05 - 09:32:49 | -4702 |
| Tonopah | 09:24:53 | -51.6 | Dark | Down | 18.0 | 264.4 | Really Low | 09:17:01 - 09:32:45 | -4714 |
| Bishop | 09:24:56 | -52.7 | Dark | Down | 19.0 | 263.8 | Really Low | 09:17:04 - 09:32:48 | -4776 |
| Beatty | 09:24:55 | -52.1 | Dark | Down | 17.8 | 265.0 | Really Low | 09:17:03 - 09:32:47 | -4845 |
| Indian Springs | 09:24:52 | -51.6 | Dark | Down | 17.0 | 265.8 | Really Low | 09:17:00 - 09:32:44 | -4892 |
| Henderson | 09:24:52 | -51.5 | Dark | Down | 16.4 | 266.4 | Really Low | 09:17:00 - 09:32:44 | -4957 |
| CPSLO | 09:25:03 | -55.5 | Dark | Down | 21.1 | 263.2 | Low | 09:17:11 - 09:32:55 | -4969 |
| Searchlight/Boulder City | 09:24:53 | -51.8 | Dark | Down | 16.4 | 266.6 | Really Low | 09:17:01 - 09:32:45 | -5021 |
| Patrick | 09:24:53 | -51.2 | Dark | Down | 15.6 | 267.2 | Really Low | 09:17:01 - 09:32:45 | -5035 |
| Laughlin/Bullhead City | 09:24:53 | -51.8 | Dark | Down | 16.2 | 266.9 | Really Low | 09:17:01 - 09:32:45 | -5056 |
| Kingman/Dolan Springs | 09:24:52 | -51.4 | Dark | Down | 15.7 | 267.2 | Really Low | 09:17:00 - 09:32:44 | -5058 |
| DCO | 09:24:51 | -50.9 | Dark | Down | 15.0 | 267.7 | Really Low | 09:16:59 - 09:32:43 | -5074 |
| Mohave Valley | 09:24:52 | -51.9 | Dark | Down | 16.2 | 266.9 | Really Low | 09:17:00 - 09:32:44 | -5086 |
| Wildwood | 09:25:00 | -55.0 | Dark | Down | 19.5 | 264.9 | Really Low | 09:17:08 - 09:32:52 | -5130 |
| Lake Havasu City | 09:24:53 | -52.0 | Dark | Down | 16.0 | 267.2 | Really Low | 09:17:01 - 09:32:45 | -5132 |
| Parker | 09:24:55 | -52.2 | Dark | Down | 16.0 | 267.3 | Really Low | 09:17:03 - 09:32:47 | -5171 |
| Idyllwild | 09:24:55 | -54.0 | Dark | Down | 18.0 | 266.1 | Really Low | 09:17:03 - 09:32:47 | -5192 |
| Blythe | 09:24:53 | -52.7 | Dark | Down | 16.2 | 267.3 | Really Low | 09:17:01 - 09:32:45 | -5225 |
| George/Scottsdale | 09:24:53 | -50.7 | Dark | Down | 14.0 | 268.8 | Really Low | 09:17:01 - 09:32:45 | -5234 |
| Calipatria | 09:24:56 | -53.6 | Dark | Down | 17.0 | 266.9 | Really Low | 09:17:04 - 09:32:48 | -5270 |
| Yuma | 09:24:57 | -53.2 | Dark | Down | 16.3 | 267.6 | Really Low | 09:17:05 - 09:32:49 | -5326 |
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 307982, (2020/10/15 09:31UT) Object RA Dec mag sep mel Markab 23:04:45.8 +15:12:18 2.5 13.05 154 30 Peg 22:20:27.5 +05:47:22 5.3 1.34 150 PPM 172974 22:22:34.3 +06:28:25 7.7 0.49 150 PPM 173025 22:25:09.9 +06:51:35 8.7 0.26 150 307982 22:24:14.3 +06:44:23 16.8 150 Positions are for J2000
Event circumstances last updated at 2020/08/28 21:39:33 UT
Marc W. Buie, Southwest Research Institute