Event between (84922) 03VS2 and star GA1220:02014713 with event index number of 2404933
Geocentric closest approach at 2021/12/28 00:49:17 UTC
J2000 position of star is 05:40:21.5 +32:33:34
Equinox of date position of star is 05:41:47.6 +32:34:11
Stellar brightness G=13.4,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 111 degrees from the moon.
Moon is 40% illuminated.
TNO apparent brightness V=19.6
[RECON map]
TNO is 36.8 AU from the Sun
and 35.8 AU from the Earth.
The TNO is moving 24.9
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 114 seconds.
The 1-sigma cross-track error in the shadow position is
1368 km.
The sky-plane scale is
25977.9 km/arcsec.
The TNO has an absolute magnitude Hv=4.0
Diameter=968.3 km assuming a 5% albedo -- 38.9 sec chord
Diameter=395.3 km assuming a 30% albedo -- 15.9 sec chord
Dynamical classification is 3:2E
Star training set for 84922, (2021/12/28 00:49UT) Object RA Dec mag sep mel Aldebaran 04:37:11.1 +16:33:06 0.8 21.68 129 Alnath 05:27:41.0 +28:37:26 1.6 4.98 115 PPM 070700 05:42:01.3 +31:22:05 5.9 1.20 112 PPM 070659 05:40:08.0 +32:29:09 8.5 0.36 112 PPM 070695 05:41:49.5 +32:34:48 9.5 0.01 111 84922 05:41:47.9 +32:34:11 13.4 111 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 0.0 km
RECON observability=0.0 and success probability=0.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 00:51:45 | -4.6 | CT | Down | 18.5 | 61.4 | Really Low | 00:41:47 - 01:01:44 | 1329 |
| Kamloops | 00:51:39 | -7.3 | NT | Down | 21.2 | 64.1 | Low | 00:41:40 - 01:01:37 | 1313 |
| Peachland | 00:51:43 | -7.3 | NT | Down | 21.2 | 64.2 | Low | 00:41:44 - 01:01:41 | 1248 |
| Kelowna | 00:51:43 | -7.5 | NT | Down | 21.4 | 64.4 | Low | 00:41:44 - 01:01:41 | 1242 |
| Summerland | 00:51:43 | -7.2 | NT | Down | 21.2 | 64.2 | Low | 00:41:45 - 01:01:42 | 1238 |
| Penticton | 00:51:44 | -7.3 | NT | Down | 21.2 | 64.2 | Low | 00:41:45 - 01:01:42 | 1230 |
| Oliver | 00:51:45 | -7.1 | NT | Down | 21.1 | 64.1 | Low | 00:41:46 - 01:01:43 | 1213 |
| Anarchist Mountain Observatory | 00:51:45 | -7.2 | NT | Down | 21.1 | 64.2 | Low | 00:41:47 - 01:01:44 | 1198 |
| Tonasket | 00:51:46 | -7.0 | NT | Down | 20.9 | 64.0 | Low | 00:41:48 - 01:01:45 | 1185 |
| Okanogan | 00:51:48 | -6.7 | NT | Down | 20.7 | 63.8 | Low | 00:41:49 - 01:01:46 | 1174 |
| Manson/Chelan | 00:51:49 | -6.2 | NT | Down | 20.1 | 63.3 | Low | 00:41:51 - 01:01:48 | 1173 |
| Brewster | 00:51:48 | -6.5 | NT | Down | 20.5 | 63.6 | Low | 00:41:50 - 01:01:47 | 1169 |
| Wenatchee | 00:51:51 | -5.8 | CT | Down | 19.8 | 63.1 | Really Low | 00:41:52 - 01:01:49 | 1156 |
| Ellensburg | 00:51:52 | -5.5 | CT | Down | 19.5 | 62.8 | Really Low | 00:41:53 - 01:01:50 | 1144 |
| Yakima | 00:51:54 | -5.3 | CT | Down | 19.3 | 62.7 | Really Low | 00:41:55 - 01:01:52 | 1124 |
| Toppenish/White Swan | 00:51:54 | -5.3 | CT | Down | 19.3 | 62.7 | Really Low | 00:41:56 - 01:01:53 | 1106 |
| The Dalles | 00:51:56 | -4.5 | CT | Down | 18.5 | 62.0 | Really Low | 00:41:58 - 01:01:55 | 1098 |
| Goldendale | 00:51:56 | -4.8 | CT | Down | 18.8 | 62.3 | Really Low | 00:41:58 - 01:01:55 | 1095 |
| Maupin | 00:51:58 | -4.3 | CT | Down | 18.4 | 61.9 | Really Low | 00:42:00 - 01:01:57 | 1071 |
| Pasco | 00:51:56 | -6.0 | NT | Down | 20.1 | 63.4 | Low | 00:41:57 - 01:01:54 | 1048 |
| Sisters | 00:52:01 | -3.6 | CT | Down | 17.6 | 61.4 | Really Low | 00:42:02 - 01:01:59 | 1045 |
| Redmond | 00:52:01 | -3.8 | CT | Down | 17.9 | 61.6 | Really Low | 00:42:02 - 01:01:59 | 1027 |
| PNWRO | 00:51:56 | -6.1 | NT | Down | 20.1 | 63.5 | Low | 00:41:58 - 01:01:55 | 1026 |
| Bend | 00:52:02 | -3.7 | CT | Down | 17.7 | 61.5 | Really Low | 00:42:03 - 01:02:00 | 1022 |
| Oregon Observatory | 00:52:02 | -3.5 | CT | Down | 17.5 | 61.4 | Really Low | 00:42:04 - 01:02:01 | 1018 |
| La Pine/Gilchrist | 00:52:03 | -3.4 | CT | Down | 17.4 | 61.3 | Really Low | 00:42:04 - 01:02:01 | 1010 |
| Chiloquin | 00:52:06 | -2.6 | CT | Down | 16.6 | 60.8 | Really Low | 00:42:08 - 01:02:05 | 963 |
| North Lake | 00:52:05 | -3.5 | CT | Down | 17.6 | 61.5 | Really Low | 00:42:06 - 01:02:03 | 960 |
| Klamath Falls | 00:52:07 | -2.5 | CT | Down | 16.5 | 60.7 | Really Low | 00:42:09 - 01:02:06 | 941 |
| Paisley | 00:52:07 | -3.5 | CT | Down | 17.5 | 61.6 | Really Low | 00:42:08 - 01:02:05 | 914 |
| Lakeview | 00:52:09 | -3.4 | CT | Down | 17.4 | 61.5 | Really Low | 00:42:10 - 01:02:07 | 877 |
| Fall River/Burney | 00:52:11 | -2.1 | CT | Down | 16.2 | 60.7 | Really Low | 00:42:13 - 01:02:10 | 857 |
| Sleaford | 00:51:35 | -16.2 | AT | Down | 30.1 | 74.5 | Up | 00:41:37 - 01:01:34 | 845 |
| Cedarville | 00:52:11 | -3.2 | CT | Down | 17.2 | 61.5 | Really Low | 00:42:12 - 01:02:09 | 831 |
| Susanville | 00:52:14 | -2.3 | CT | Down | 16.4 | 60.9 | Really Low | 00:42:15 - 01:02:12 | 787 |
| Greenville | 00:52:14 | -2.0 | CT | Down | 16.1 | 60.7 | Really Low | 00:42:16 - 01:02:13 | 784 |
| Gimple | 00:52:14 | -2.1 | CT | Down | 16.1 | 60.7 | Really Low | 00:42:16 - 01:02:13 | 780 |
| Quincy | 00:52:15 | -1.9 | CT | Down | 16.0 | 60.6 | Really Low | 00:42:17 - 01:02:14 | 771 |
| Portola | 00:52:16 | -2.2 | CT | Down | 16.2 | 60.9 | Really Low | 00:42:17 - 01:02:14 | 743 |
| Reno | 00:52:17 | -2.5 | CT | Down | 16.5 | 61.1 | Really Low | 00:42:18 - 01:02:15 | 697 |
| Carson City | 00:52:18 | -2.3 | CT | Down | 16.4 | 61.1 | Really Low | 00:42:20 - 01:02:17 | 674 |
| Gardnerville | 00:52:19 | -2.3 | CT | Down | 16.3 | 61.0 | Really Low | 00:42:21 - 01:02:18 | 657 |
| Yerington | 00:52:19 | -2.7 | CT | Down | 16.7 | 61.3 | Really Low | 00:42:21 - 01:02:18 | 633 |
| Hawthorne | 00:52:21 | -2.8 | CT | Down | 16.9 | 61.5 | Really Low | 00:42:22 - 01:02:19 | 580 |
| Lee Vining | 00:52:22 | -2.2 | CT | Down | 16.3 | 61.1 | Really Low | 00:42:24 - 01:02:21 | 567 |
| Bishop | 00:52:24 | -2.5 | CT | Down | 16.5 | 61.3 | Really Low | 00:42:26 - 01:02:23 | 495 |
| Tonopah | 00:52:23 | -3.6 | CT | Down | 17.6 | 62.1 | Really Low | 00:42:24 - 01:02:21 | 485 |
| CPSLO | 00:52:29 | 0.1 | Sun up | Down | 13.9 | 59.7 | Really Low | 00:42:31 - 01:02:28 | 467 |
| Beatty | 00:52:26 | -3.4 | CT | Down | 17.4 | 62.0 | Really Low | 00:42:28 - 01:02:25 | 387 |
| Indian Springs | 00:52:28 | -4.1 | CT | Down | 18.0 | 62.4 | Really Low | 00:42:29 - 01:02:26 | 314 |
| Wildwood | 00:52:34 | -0.8 | CT | Down | 14.8 | 60.4 | Really Low | 00:42:35 - 01:02:32 | 287 |
| Henderson | 00:52:29 | -4.3 | CT | Down | 18.3 | 62.6 | Really Low | 00:42:31 - 01:02:28 | 244 |
| Idyllwild | 00:52:35 | -2.1 | CT | Down | 16.0 | 61.2 | Really Low | 00:42:37 - 01:02:34 | 170 |
| Laughlin/Bullhead City | 00:52:32 | -4.3 | CT | Down | 18.2 | 62.5 | Really Low | 00:42:34 - 01:02:31 | 164 |
| Patrick | 00:52:31 | -4.9 | CT | Down | 18.8 | 62.9 | Really Low | 00:42:33 - 01:02:30 | 147 |
| Mohave Valley | 00:52:33 | -4.2 | CT | Down | 18.1 | 62.4 | Really Low | 00:42:34 - 01:02:31 | 145 |
| Kingman/Dolan Springs | 00:52:32 | -4.7 | CT | Down | 18.6 | 62.8 | Really Low | 00:42:34 - 01:02:31 | 141 |
| Lake Havasu City | 00:52:34 | -4.2 | CT | Down | 18.1 | 62.4 | Really Low | 00:42:35 - 01:02:32 | 105 |
| Parker | 00:52:35 | -4.0 | CT | Down | 17.9 | 62.4 | Really Low | 00:42:36 - 01:02:33 | 78 |
| Dunrhomin | 00:52:16 | -13.0 | AT | Down | 27.0 | 68.9 | Low | 00:42:17 - 01:02:14 | 70 |
| Calipatria | 00:52:38 | -2.7 | CT | Down | 16.6 | 61.6 | Really Low | 00:42:39 - 01:02:36 | 67 |
| Blythe | 00:52:36 | -3.6 | CT | Down | 17.5 | 62.1 | Really Low | 00:42:38 - 01:02:35 | 56 |
| Yuma | 00:52:39 | -3.2 | CT | Down | 17.0 | 61.8 | Really Low | 00:42:40 - 01:02:37 | -8 |
| George/Scottsdale | 00:52:36 | -5.7 | CT | Down | 19.6 | 63.3 | Really Low | 00:42:38 - 01:02:35 | -73 |
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 84922, (2021/12/28 00:49UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 21.68 129 Alnath 05:26:17.6 +28:36:23 1.6 4.98 115 PPM 070700 05:40:35.9 +31:21:29 5.9 1.20 112 PPM 070659 05:38:41.7 +32:28:29 8.5 0.36 112 PPM 070695 05:40:23.2 +32:34:12 9.5 0.01 111 84922 05:40:21.5 +32:33:34 13.4 111 Positions are for J2000
Event circumstances last updated at 2021/12/07 01:44:31 UT
Marc W. Buie, Southwest Research Institute