Event between (202421) 05UQ513 and star GDR2_11.842_33.117 with event index number of 154989
Geocentric closest approach at 2018/10/27 07:53:07 UTC
J2000 position of star is 00:47:22.1 +33:07:02
Equinox of date position of star is 00:48:22.0 +33:13:02
Stellar brightness G=12.3,
use SENSEUP=16
Star is 51 degrees from the moon.
Moon is 92% illuminated.
TNO apparent brightness V=20.3
[RECON map]
TNO is 48.0 AU from the Sun
and 47.2 AU from the Earth.
The TNO is moving 25.6
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 112 seconds.
The 1-sigma cross-track error in the shadow position is
2305 km.
The sky-plane scale is
34202.6 km/arcsec.
The TNO has an absolute magnitude Hv=3.5
Diameter=1202.3 km assuming a 5% albedo -- 47.0 sec chord
Diameter=490.8 km assuming a 30% albedo -- 19.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 202421, (2018/10/27 07:53UT) Object RA Dec mag sep mel Deneb 20:42:04.4 +45:20:54 1.3 47.97 94 57Gam1And 02:05:03.8 +42:25:09 2.3 17.66 39 31Del And 00:40:20.4 +30:57:49 3.3 2.83 52 PPM 065648 00:49:56.0 +33:01:37 8.0 0.38 50 PPM 065633 00:49:01.9 +33:18:53 10.7 0.16 51 202421 00:48:23.4 +33:13:11 12.3 51 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 24.8 km
RECON observability=1.0 and success probability=0.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Oroville | 07:51:37 | -53.8 | Dark | Up | 67.1 | 234.6 | Up | 07:41:45 - 08:01:28 | -10019 |
| Tonasket | 07:51:38 | -54.0 | Dark | Up | 67.2 | 235.1 | Up | 07:41:46 - 08:01:29 | -10044 |
| Okanogan | 07:51:37 | -54.4 | Dark | Up | 67.5 | 235.5 | Up | 07:41:46 - 08:01:29 | -10076 |
| Brewster | 07:51:39 | -54.7 | Dark | Up | 67.8 | 235.7 | Up | 07:41:47 - 08:01:30 | -10101 |
| Manson/Chelan | 07:51:40 | -54.9 | Dark | Up | 68.1 | 235.5 | Up | 07:41:48 - 08:01:31 | -10115 |
| Entiat | 07:51:40 | -55.1 | Dark | Up | 68.2 | 235.8 | Up | 07:41:49 - 08:01:32 | -10137 |
| Wenatchee | 07:51:41 | -55.4 | Dark | Up | 68.4 | 236.2 | Up | 07:41:49 - 08:01:32 | -10162 |
| Ellensburg | 07:51:42 | -55.8 | Dark | Up | 68.8 | 236.7 | Up | 07:41:50 - 08:01:33 | -10200 |
| Yakima | 07:51:42 | -56.2 | Dark | Up | 69.0 | 237.6 | Up | 07:41:50 - 08:01:33 | -10243 |
| Toppenish/White Swan | 07:51:42 | -56.4 | Dark | Up | 69.0 | 238.3 | Up | 07:41:50 - 08:01:33 | -10270 |
| Pasco | 07:51:39 | -56.5 | Dark | Up | 68.3 | 240.6 | Up | 07:41:47 - 08:01:30 | -10310 |
| Goldendale | 07:51:44 | -57.0 | Dark | Up | 69.6 | 238.9 | Up | 07:41:52 - 08:01:35 | -10319 |
| The Dalles | 07:51:44 | -57.2 | Dark | Up | 69.9 | 238.8 | Up | 07:41:53 - 08:01:36 | -10334 |
| George/Umatilla | 07:51:39 | -56.8 | Dark | Up | 68.6 | 241.0 | Up | 07:41:48 - 08:01:31 | -10341 |
| PNWRO | 07:51:39 | -56.7 | Dark | Up | 68.3 | 241.5 | Up | 07:41:47 - 08:01:30 | -10341 |
| Maupin | 07:51:45 | -57.6 | Dark | Up | 70.1 | 240.0 | Up | 07:41:53 - 08:01:36 | -10381 |
| Madras/Culver | 07:51:45 | -58.2 | Dark | Up | 70.3 | 241.2 | Up | 07:41:54 - 08:01:37 | -10438 |
| Sisters | 07:51:47 | -58.5 | Dark | Up | 70.8 | 241.3 | Up | 07:41:56 - 08:01:39 | -10462 |
| Redmond | 07:51:46 | -58.5 | Dark | Up | 70.5 | 242.0 | Up | 07:41:55 - 08:01:38 | -10474 |
| Bend | 07:51:47 | -58.7 | Dark | Up | 70.7 | 242.3 | Up | 07:41:56 - 08:01:39 | -10494 |
| Oregon Observatory | 07:51:47 | -58.9 | Dark | Up | 70.9 | 242.6 | Up | 07:41:56 - 08:01:39 | -10509 |
| La Pine/Gilchrist | 07:51:48 | -59.1 | Dark | Up | 71.0 | 243.0 | Up | 07:41:57 - 08:01:40 | -10529 |
| North Lake | 07:51:46 | -59.5 | Dark | Up | 70.8 | 245.1 | Up | 07:41:55 - 08:01:38 | -10590 |
| Chiloquin | 07:51:50 | -60.2 | Dark | Up | 71.7 | 245.4 | Up | 07:41:58 - 08:01:41 | -10638 |
| Paisley | 07:51:46 | -60.1 | Dark | Up | 70.8 | 247.1 | Up | 07:41:55 - 08:01:38 | -10657 |
| Klamath Falls | 07:51:51 | -60.6 | Dark | Up | 71.8 | 246.5 | Up | 07:41:59 - 08:01:42 | -10677 |
| Tulelake | 07:51:50 | -60.8 | Dark | Up | 71.7 | 247.7 | Up | 07:41:58 - 08:01:41 | -10713 |
| Lakeview | 07:51:47 | -60.6 | Dark | Up | 70.9 | 248.7 | Up | 07:41:55 - 08:01:38 | -10715 |
| Cedarville | 07:51:46 | -61.2 | Dark | Up | 71.0 | 250.8 | Up | 07:41:55 - 08:01:38 | -10790 |
| Fall River/Burney | 07:51:51 | -61.7 | Dark | Up | 72.0 | 250.4 | Up | 07:41:59 - 08:01:42 | -10811 |
| Susanville | 07:51:49 | -62.4 | Dark | Up | 71.7 | 253.3 | Up | 07:41:58 - 08:01:41 | -10896 |
| Greenville | 07:51:50 | -62.6 | Dark | Up | 71.9 | 253.7 | Up | 07:41:59 - 08:01:42 | -10918 |
| Gimple | 07:51:50 | -62.6 | Dark | Up | 71.9 | 253.8 | Up | 07:41:59 - 08:01:42 | -10921 |
| Quincy | 07:51:51 | -62.8 | Dark | Up | 72.0 | 254.3 | Up | 07:41:59 - 08:01:42 | -10940 |
| Portola | 07:51:49 | -63.0 | Dark | Up | 71.7 | 255.2 | Up | 07:41:57 - 08:01:40 | -10965 |
| Reno | 07:51:47 | -63.2 | Dark | Up | 71.3 | 256.8 | Up | 07:41:56 - 08:01:39 | -11009 |
| Carson City | 07:51:48 | -63.5 | Dark | Up | 71.3 | 257.8 | Up | 07:41:56 - 08:01:39 | -11048 |
| Gardnerville | 07:51:48 | -63.8 | Dark | Up | 71.3 | 258.6 | Up | 07:41:57 - 08:01:40 | -11075 |
| Yerington | 07:51:47 | -63.7 | Dark | Up | 70.9 | 259.1 | Up | 07:41:55 - 08:01:38 | -11084 |
| Hawthorne | 07:51:45 | -64.1 | Dark | Up | 70.6 | 260.9 | Up | 07:41:53 - 08:01:36 | -11146 |
| Lee Vining | 07:51:47 | -64.7 | Dark | Up | 71.0 | 262.1 | Up | 07:41:56 - 08:01:39 | -11195 |
| Niwot | 07:51:05 | -59.0 | Dark | Up | 60.2 | 268.1 | Up | 07:41:13 - 08:00:56 | -11199 |
| Tonopah | 07:51:42 | -64.4 | Dark | Up | 69.5 | 263.5 | Up | 07:41:50 - 08:01:33 | -11229 |
| Bishop | 07:51:46 | -65.2 | Dark | Up | 70.5 | 264.4 | Up | 07:41:54 - 08:01:37 | -11276 |
| Beatty | 07:51:42 | -65.4 | Dark | Up | 69.3 | 266.9 | Up | 07:41:50 - 08:01:33 | -11363 |
| Lone Pine | 07:51:46 | -65.9 | Dark | Up | 70.3 | 266.8 | Up | 07:41:54 - 08:01:37 | -11365 |
| Indian Springs | 07:51:38 | -65.6 | Dark | Up | 68.4 | 268.5 | Up | 07:41:47 - 08:01:30 | -11421 |
| CPSLO | 07:51:56 | -67.5 | Dark | Up | 72.4 | 268.9 | Up | 07:42:04 - 08:01:47 | -11438 |
| Henderson | 07:51:37 | -65.9 | Dark | Up | 67.9 | 270.2 | Up | 07:41:45 - 08:01:28 | -11493 |
| Searchlight/Boulder City | 07:51:37 | -66.5 | Dark | Up | 67.8 | 271.7 | Up | 07:41:46 - 08:01:29 | -11556 |
| Patrick | 07:51:34 | -66.2 | Dark | Up | 67.0 | 272.4 | Up | 07:41:42 - 08:01:25 | -11583 |
| Laughlin/Bullhead City | 07:51:37 | -66.7 | Dark | Up | 67.5 | 272.6 | Up | 07:41:45 - 08:01:28 | -11595 |
| Kingman/Dolan Springs | 07:51:35 | -66.5 | Dark | Up | 67.1 | 272.8 | Up | 07:41:44 - 08:01:27 | -11603 |
| Wildwood | 07:51:50 | -68.5 | Dark | Up | 70.7 | 273.6 | Up | 07:41:59 - 08:01:42 | -11619 |
| Mohave Valley | 07:51:37 | -66.9 | Dark | Up | 67.5 | 273.2 | Up | 07:41:45 - 08:01:28 | -11625 |
| DCO | 07:51:33 | -66.3 | Dark | Up | 66.4 | 273.4 | Up | 07:41:41 - 08:01:24 | -11630 |
| Lake Havasu City | 07:51:37 | -67.2 | Dark | Up | 67.3 | 274.3 | Up | 07:41:45 - 08:01:28 | -11673 |
| Idyllwild | 07:51:45 | -68.5 | Dark | Up | 69.2 | 275.3 | Up | 07:41:53 - 08:01:36 | -11702 |
| Parker | 07:51:36 | -67.6 | Dark | Up | 67.2 | 275.2 | Up | 07:41:44 - 08:01:27 | -11711 |
| Blythe | 07:51:39 | -68.1 | Dark | Up | 67.4 | 276.3 | Up | 07:41:47 - 08:01:30 | -11761 |
| Calipatria | 07:51:42 | -68.8 | Dark | Up | 68.1 | 277.2 | Up | 07:41:50 - 08:01:33 | -11794 |
| Yuma | 07:51:39 | -69.0 | Dark | Up | 67.3 | 278.5 | Up | 07:41:48 - 08:01:31 | -11859 |
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, (2018/10/27 07:53UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 47.97 94 57Gam1And 02:03:54.0 +42:19:46 2.3 17.66 39 31Del And 00:39:19.9 +30:51:38 3.3 2.83 52 PPM 065648 00:48:54.6 +32:55:28 8.0 0.38 50 PPM 065633 00:48:00.6 +33:12:45 10.7 0.16 51 202421 00:47:22.1 +33:07:02 12.3 51 Positions are for J2000
Event circumstances last updated at 2018/05/24 18:06:26 UT
Marc W. Buie, Southwest Research Institute