Event between (202421) 05UQ513 and star GA1220:00154686 with event index number of 216267
Geocentric closest approach at 2019/10/09 11:35:17 UTC
J2000 position of star is 00:53:03.2 +33:47:07
Equinox of date position of star is 00:54:03.7 +33:53:07
Stellar brightness G=12.5,
use SENSEUP=16
Star is 64 degrees from the moon.
Moon is 83% illuminated.
TNO apparent brightness V=20.3
[RECON map]
TNO is 48.0 AU from the Sun
and 47.1 AU from the Earth.
The TNO is moving 25.5
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 121 seconds.
The 1-sigma cross-track error in the shadow position is
2554 km.
The sky-plane scale is
34144.9 km/arcsec.
The TNO has an absolute magnitude Hv=3.5
Diameter=1202.3 km assuming a 5% albedo -- 47.2 sec chord
Diameter=490.8 km assuming a 30% albedo -- 19.3 sec chord
Dynamical classification is SCATEXTD
Star training set for 202421, (2019/10/09 11:35UT) Object RA Dec mag sep mel Deneb 20:42:06.4 +45:21:06 1.3 48.59 64 57Gam1And 02:05:07.3 +42:25:25 2.3 16.31 80 69Sig Psc 01:03:54.4 +31:54:36 5.4 2.85 64 PPM 065732 00:54:24.3 +34:01:52 8.4 0.15 64 202421 00:54:08.1 +33:53:33 12.5 64 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 24.4 km
RECON observability=1.0 and success probability=14.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Penticton | 11:31:00 | -26.1 | Dark | Down | 45.3 | 271.9 | Up | 11:20:27 - 11:41:32 | 3477 |
| Oroville | 11:30:58 | -26.3 | Dark | Down | 45.2 | 272.6 | Up | 11:20:26 - 11:41:31 | 3416 |
| Tonasket | 11:30:58 | -26.4 | Dark | Down | 45.2 | 272.8 | Up | 11:20:26 - 11:41:31 | 3392 |
| Okanogan | 11:30:58 | -26.6 | Dark | Down | 45.3 | 273.1 | Up | 11:20:26 - 11:41:31 | 3354 |
| Brewster | 11:30:58 | -26.8 | Dark | Down | 45.4 | 273.2 | Up | 11:20:26 - 11:41:31 | 3321 |
| Manson/Chelan | 11:30:58 | -27.1 | Dark | Down | 45.6 | 273.1 | Up | 11:20:26 - 11:41:31 | 3292 |
| Entiat | 11:30:58 | -27.2 | Dark | Down | 45.7 | 273.3 | Up | 11:20:26 - 11:41:31 | 3268 |
| Wenatchee | 11:30:58 | -27.4 | Dark | Down | 45.7 | 273.5 | Up | 11:20:26 - 11:41:31 | 3239 |
| Ellensburg | 11:30:58 | -27.7 | Dark | Down | 45.9 | 273.8 | Up | 11:20:26 - 11:41:31 | 3191 |
| Yakima | 11:30:58 | -27.9 | Dark | Down | 45.8 | 274.2 | Up | 11:20:25 - 11:41:30 | 3148 |
| Pasco | 11:30:54 | -27.1 | Dark | Down | 44.8 | 275.5 | Up | 11:20:22 - 11:41:27 | 3140 |
| Toppenish/White Swan | 11:30:57 | -27.8 | Dark | Down | 45.7 | 274.5 | Up | 11:20:25 - 11:41:30 | 3128 |
| PNWRO | 11:30:53 | -27.0 | Dark | Down | 44.7 | 275.9 | Up | 11:20:21 - 11:41:26 | 3119 |
| George/Umatilla | 11:30:54 | -27.3 | Dark | Down | 45.0 | 275.7 | Up | 11:20:22 - 11:41:27 | 3100 |
| Goldendale | 11:30:57 | -28.3 | Dark | Down | 46.0 | 274.8 | Up | 11:20:25 - 11:41:30 | 3061 |
| The Dalles | 11:30:58 | -28.6 | Dark | Down | 46.2 | 274.8 | Up | 11:20:25 - 11:41:30 | 3030 |
| Maupin | 11:30:57 | -28.7 | Dark | Down | 46.1 | 275.3 | Up | 11:20:24 - 11:41:29 | 2988 |
| Madras/Culver | 11:30:56 | -29.0 | Dark | Down | 46.1 | 275.8 | Up | 11:20:24 - 11:41:29 | 2929 |
| Redmond | 11:30:56 | -29.1 | Dark | Down | 46.1 | 276.2 | Up | 11:20:23 - 11:41:28 | 2890 |
| Sisters | 11:30:57 | -29.4 | Dark | Down | 46.4 | 275.9 | Up | 11:20:24 - 11:41:29 | 2884 |
| Niwot | 11:30:20 | -18.8 | Dark | Down | 33.7 | 288.2 | Up | 11:19:48 - 11:40:53 | 2875 |
| Bend | 11:30:56 | -29.3 | Dark | Down | 46.1 | 276.3 | Up | 11:20:23 - 11:41:28 | 2864 |
| Oregon Observatory | 11:30:56 | -29.5 | Dark | Down | 46.2 | 276.4 | Up | 11:20:23 - 11:41:28 | 2843 |
| La Pine/Gilchrist | 11:30:56 | -29.6 | Dark | Down | 46.2 | 276.6 | Up | 11:20:23 - 11:41:28 | 2820 |
| North Lake | 11:30:54 | -29.3 | Dark | Down | 45.8 | 277.4 | Up | 11:20:22 - 11:41:27 | 2785 |
| Paisley | 11:30:53 | -29.3 | Dark | Down | 45.4 | 278.1 | Up | 11:20:20 - 11:41:25 | 2733 |
| Chiloquin | 11:30:55 | -30.2 | Dark | Down | 46.4 | 277.5 | Up | 11:20:23 - 11:41:28 | 2694 |
| Lakeview | 11:30:52 | -29.3 | Dark | Down | 45.2 | 278.8 | Up | 11:20:19 - 11:41:24 | 2683 |
| Klamath Falls | 11:30:55 | -30.3 | Dark | Down | 46.3 | 277.9 | Up | 11:20:22 - 11:41:27 | 2658 |
| Tulelake | 11:30:54 | -30.2 | Dark | Down | 46.0 | 278.4 | Up | 11:20:22 - 11:41:27 | 2635 |
| Cedarville | 11:30:51 | -29.4 | Dark | Down | 45.0 | 279.5 | Up | 11:20:18 - 11:41:23 | 2616 |
| Fall River/Burney | 11:30:53 | -30.5 | Dark | Down | 45.8 | 279.3 | Up | 11:20:20 - 11:41:25 | 2539 |
| Susanville | 11:30:51 | -30.1 | Dark | Down | 45.1 | 280.3 | Up | 11:20:18 - 11:41:23 | 2487 |
| Gimple | 11:30:51 | -30.4 | Dark | Down | 45.3 | 280.5 | Up | 11:20:19 - 11:41:24 | 2452 |
| Greenville | 11:30:51 | -30.4 | Dark | Down | 45.3 | 280.5 | Up | 11:20:19 - 11:41:24 | 2451 |
| Quincy | 11:30:51 | -30.5 | Dark | Down | 45.3 | 280.7 | Up | 11:20:19 - 11:41:24 | 2429 |
| Portola | 11:30:50 | -30.2 | Dark | Down | 44.9 | 281.0 | Up | 11:20:17 - 11:41:22 | 2426 |
| Reno | 11:30:48 | -29.8 | Dark | Down | 44.4 | 281.6 | Up | 11:20:15 - 11:41:20 | 2411 |
| Carson City | 11:30:47 | -29.9 | Dark | Down | 44.3 | 282.0 | Up | 11:20:15 - 11:41:20 | 2373 |
| Yerington | 11:30:46 | -29.5 | Dark | Down | 43.8 | 282.4 | Up | 11:20:14 - 11:41:19 | 2366 |
| Gardnerville | 11:30:47 | -30.0 | Dark | Down | 44.2 | 282.2 | Up | 11:20:15 - 11:41:20 | 2348 |
| Hawthorne | 11:30:44 | -29.3 | Dark | Down | 43.3 | 283.1 | Up | 11:20:11 - 11:41:16 | 2329 |
| Tonopah | 11:30:40 | -28.3 | Dark | Down | 42.1 | 284.2 | Up | 11:20:08 - 11:41:13 | 2313 |
| Lee Vining | 11:30:45 | -29.8 | Dark | Down | 43.5 | 283.4 | Up | 11:20:12 - 11:41:17 | 2257 |
| Bishop | 11:30:43 | -29.4 | Dark | Down | 42.8 | 284.3 | Up | 11:20:10 - 11:41:15 | 2210 |
| Beatty | 11:30:39 | -28.3 | Dark | Down | 41.4 | 285.4 | Up | 11:20:06 - 11:41:11 | 2201 |
| Indian Springs | 11:30:36 | -27.5 | Dark | Down | 40.5 | 286.1 | Up | 11:20:04 - 11:41:09 | 2194 |
| Henderson | 11:30:34 | -27.1 | Dark | Down | 39.8 | 286.8 | Up | 11:20:02 - 11:41:07 | 2156 |
| Lone Pine | 11:30:41 | -29.4 | Dark | Down | 42.4 | 285.1 | Up | 11:20:09 - 11:41:14 | 2137 |
| Patrick | 11:30:31 | -26.4 | Dark | Down | 38.8 | 287.7 | Up | 11:19:59 - 11:41:04 | 2121 |
| DCO | 11:30:29 | -25.9 | Dark | Down | 38.2 | 288.2 | Up | 11:19:57 - 11:41:02 | 2109 |
| Searchlight/Boulder City | 11:30:33 | -27.2 | Dark | Down | 39.6 | 287.3 | Up | 11:20:01 - 11:41:06 | 2097 |
| Kingman/Dolan Springs | 11:30:31 | -26.6 | Dark | Down | 38.9 | 287.8 | Up | 11:19:59 - 11:41:04 | 2092 |
| Laughlin/Bullhead City | 11:30:33 | -27.0 | Dark | Down | 39.3 | 287.6 | Up | 11:20:00 - 11:41:05 | 2075 |
| Mohave Valley | 11:30:32 | -27.0 | Dark | Down | 39.2 | 287.8 | Up | 11:20:00 - 11:41:05 | 2046 |
| Lake Havasu City | 11:30:31 | -26.9 | Dark | Down | 38.9 | 288.2 | Up | 11:19:59 - 11:41:04 | 2011 |
| Parker | 11:30:31 | -27.0 | Dark | Down | 38.7 | 288.5 | Up | 11:19:58 - 11:41:03 | 1975 |
| CPSLO | 11:30:47 | -31.7 | Dark | Down | 44.0 | 285.3 | Up | 11:20:14 - 11:41:19 | 1937 |
| Blythe | 11:30:31 | -27.3 | Dark | Down | 38.8 | 288.8 | Up | 11:19:59 - 11:41:04 | 1911 |
| Idyllwild | 11:30:36 | -29.0 | Dark | Down | 40.5 | 288.0 | Up | 11:20:04 - 11:41:09 | 1865 |
| Wildwood | 11:30:41 | -30.4 | Dark | Down | 42.1 | 287.1 | Up | 11:20:08 - 11:41:13 | 1855 |
| Calipatria | 11:30:33 | -28.2 | Dark | Down | 39.4 | 288.9 | Up | 11:20:00 - 11:41:05 | 1833 |
| Yuma | 11:30:31 | -27.5 | Dark | Down | 38.5 | 289.5 | Up | 11:19:58 - 11:41:03 | 1812 |
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 202421, (2019/10/09 11:35UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 48.59 64 57Gam1And 02:03:54.0 +42:19:46 2.3 16.31 80 69Sig Psc 01:02:49.1 +31:48:15 5.4 2.85 64 PPM 065732 00:53:19.3 +33:55:27 8.4 0.15 64 202421 00:53:03.2 +33:47:07 12.5 64 Positions are for J2000
Event circumstances last updated at 2018/06/12 07:47:09 UT
Marc W. Buie, Southwest Research Institute