Event between 99RX214 and star GA1020:00167552 with event index number of 1101902
Geocentric closest approach at 2021/09/03 09:56:08 UTC
J2000 position of star is 01:49:15.1 +13:30:11
Equinox of date position of star is 01:50:17.0 +13:35:53
Stellar brightness G=14.6,
use SENSEUP=128
Star is 87 degrees from the moon.
Moon is 14% illuminated.
TNO apparent brightness V=23.8
[RECON map]
TNO is 48.9 AU from the Sun
and 48.3 AU from the Earth.
The TNO is moving 15.5
km/sec on the sky relative to the star, or,
1.6 arcsec/hr.
The 1-sigma error in the time of the event is 716 seconds.
The 1-sigma cross-track error in the shadow position is
5864 km.
The sky-plane scale is
35009.8 km/arcsec.
The TNO has an absolute magnitude Hv=6.8
Diameter=265.5 km assuming a 5% albedo -- 17.1 sec chord
Diameter=108.4 km assuming a 30% albedo -- 7.0 sec chord
Dynamical classification is CLASSICAL
Star training set for 99RX214, (2021/09/03 09:56UT) Object RA Dec mag sep mel Aldebaran 04:37:10.0 +16:33:04 0.8 40.29 48 6Bet Ari 01:55:50.5 +20:54:47 2.6 7.42 82 PPM 117718 01:52:01.2 +11:08:59 6.0 2.49 87 PPM 117736 01:53:07.6 +13:32:01 8.5 0.66 86 PPM 117700 01:50:19.3 +13:39:37 10.0 0.06 87 99RX214 01:50:25.0 +13:36:37 14.6 86 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
1.3 sigma about the mid-time.
The median site spacing is 18.8 km
RECON observability=1.0 and success probability=8.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 09:56:07 | -27.1 | Dark | Up | 51.6 | 156.2 | Up | 09:41:07 - 10:11:07 | 1483 |
| Summerland | 09:56:08 | -27.5 | Dark | Up | 51.8 | 155.7 | Up | 09:41:08 - 10:11:08 | 1466 |
| Penticton | 09:56:08 | -27.5 | Dark | Up | 51.9 | 155.8 | Up | 09:41:08 - 10:11:08 | 1459 |
| Okanagan Falls | 09:56:09 | -27.6 | Dark | Up | 52.1 | 155.7 | Up | 09:41:09 - 10:11:09 | 1444 |
| Oliver | 09:56:09 | -27.8 | Dark | Up | 52.2 | 155.6 | Up | 09:41:09 - 10:11:09 | 1430 |
| Anarchist Mountain Observatory | 09:56:09 | -27.8 | Dark | Up | 52.4 | 155.8 | Up | 09:41:09 - 10:11:09 | 1412 |
| Oroville | 09:56:09 | -27.9 | Dark | Up | 52.5 | 155.7 | Up | 09:41:09 - 10:11:09 | 1408 |
| Tonasket | 09:56:10 | -28.1 | Dark | Up | 52.7 | 155.6 | Up | 09:41:10 - 10:11:10 | 1389 |
| Okanogan | 09:56:11 | -28.5 | Dark | Up | 53.0 | 155.1 | Up | 09:41:11 - 10:11:11 | 1365 |
| Brewster | 09:56:13 | -28.8 | Dark | Up | 53.2 | 154.7 | Up | 09:41:13 - 10:11:13 | 1348 |
| Manson/Chelan | 09:56:15 | -29.1 | Dark | Up | 53.2 | 154.0 | Up | 09:41:15 - 10:11:15 | 1340 |
| Entiat | 09:56:16 | -29.3 | Dark | Up | 53.4 | 153.8 | Up | 09:41:16 - 10:11:16 | 1324 |
| Wenatchee | 09:56:17 | -29.5 | Dark | Up | 53.6 | 153.5 | Up | 09:41:17 - 10:11:17 | 1306 |
| Ellensburg | 09:56:20 | -29.9 | Dark | Up | 53.9 | 152.9 | Up | 09:41:20 - 10:11:20 | 1278 |
| Yakima | 09:56:22 | -30.3 | Dark | Up | 54.3 | 152.6 | Up | 09:41:22 - 10:11:22 | 1245 |
| Toppenish/White Swan | 09:56:21 | -30.4 | Dark | Up | 54.5 | 152.7 | Up | 09:41:21 - 10:11:21 | 1222 |
| Goldendale | 09:56:24 | -31.0 | Dark | Up | 54.9 | 151.7 | Up | 09:41:24 - 10:11:24 | 1187 |
| Pasco | 09:56:15 | -30.0 | Dark | Up | 55.0 | 154.7 | Up | 09:41:15 - 10:11:15 | 1180 |
| The Dalles | 09:56:26 | -31.3 | Dark | Up | 55.0 | 151.0 | Up | 09:41:26 - 10:11:26 | 1178 |
| George/Umatilla | 09:56:18 | -30.4 | Dark | Up | 55.3 | 154.1 | Up | 09:41:18 - 10:11:18 | 1158 |
| PNWRO | 09:56:15 | -30.1 | Dark | Up | 55.3 | 154.9 | Up | 09:41:15 - 10:11:15 | 1154 |
| Maupin | 09:56:27 | -31.7 | Dark | Up | 55.4 | 150.9 | Up | 09:41:27 - 10:11:27 | 1140 |
| Madras/Culver | 09:56:29 | -32.1 | Dark | Up | 55.8 | 150.4 | Up | 09:41:29 - 10:11:29 | 1095 |
| Sisters | 09:56:33 | -32.6 | Dark | Up | 56.0 | 149.5 | Up | 09:41:33 - 10:11:33 | 1079 |
| Redmond | 09:56:31 | -32.4 | Dark | Up | 56.1 | 150.1 | Up | 09:41:31 - 10:11:31 | 1066 |
| Bend | 09:56:32 | -32.7 | Dark | Up | 56.3 | 149.7 | Up | 09:41:32 - 10:11:32 | 1052 |
| Oregon Observatory | 09:56:33 | -32.9 | Dark | Up | 56.4 | 149.4 | Up | 09:41:33 - 10:11:33 | 1041 |
| La Pine/Gilchrist | 09:56:34 | -33.1 | Dark | Up | 56.5 | 149.1 | Up | 09:41:34 - 10:11:34 | 1025 |
| North Lake | 09:56:33 | -33.2 | Dark | Up | 57.1 | 149.8 | Up | 09:41:33 - 10:11:33 | 971 |
| Chiloquin | 09:56:39 | -34.1 | Dark | Up | 57.3 | 147.7 | Up | 09:41:39 - 10:11:39 | 939 |
| Paisley | 09:56:33 | -33.5 | Dark | Up | 57.7 | 150.0 | Up | 09:41:33 - 10:11:33 | 914 |
| Klamath Falls | 09:56:40 | -34.4 | Dark | Up | 57.7 | 147.6 | Up | 09:41:40 - 10:11:40 | 907 |
| Tulelake | 09:56:39 | -34.5 | Dark | Up | 58.0 | 147.8 | Up | 09:41:39 - 10:11:39 | 875 |
| Lakeview | 09:56:33 | -33.8 | Dark | Up | 58.2 | 149.9 | Up | 09:41:33 - 10:11:33 | 865 |
| Cedarville | 09:56:34 | -34.3 | Dark | Up | 58.9 | 149.7 | Up | 09:41:34 - 10:11:34 | 802 |
| Fall River/Burney | 09:56:41 | -35.2 | Dark | Up | 58.8 | 147.2 | Up | 09:41:41 - 10:11:41 | 793 |
| Susanville | 09:56:40 | -35.4 | Dark | Up | 59.6 | 147.9 | Up | 09:41:40 - 10:11:40 | 717 |
| Greenville | 09:56:42 | -35.7 | Dark | Up | 59.8 | 147.1 | Up | 09:41:42 - 10:11:42 | 701 |
| Gimple | 09:56:42 | -35.7 | Dark | Up | 59.8 | 147.3 | Up | 09:41:42 - 10:11:42 | 698 |
| Quincy | 09:56:42 | -35.9 | Dark | Up | 59.9 | 146.9 | Up | 09:41:42 - 10:11:42 | 682 |
| Portola | 09:56:41 | -35.8 | Dark | Up | 60.2 | 147.7 | Up | 09:41:41 - 10:11:41 | 658 |
| Reno | 09:56:38 | -35.7 | Dark | Up | 60.7 | 148.6 | Up | 09:41:38 - 10:11:38 | 615 |
| Carson City | 09:56:39 | -36.0 | Dark | Up | 61.0 | 148.3 | Up | 09:41:39 - 10:11:39 | 583 |
| Gardnerville | 09:56:40 | -36.1 | Dark | Up | 61.3 | 148.1 | Up | 09:41:40 - 10:11:40 | 559 |
| Yerington | 09:56:37 | -35.8 | Dark | Up | 61.5 | 149.2 | Up | 09:41:37 - 10:11:37 | 547 |
| Hawthorne | 09:56:35 | -35.9 | Dark | Up | 62.1 | 149.8 | Up | 09:41:35 - 10:11:35 | 489 |
| Lee Vining | 09:56:39 | -36.6 | Dark | Up | 62.4 | 148.3 | Up | 09:41:39 - 10:11:39 | 452 |
| Tonopah | 09:56:29 | -35.6 | Dark | Up | 63.0 | 152.0 | Up | 09:41:29 - 10:11:29 | 407 |
| Bishop | 09:56:37 | -36.7 | Dark | Up | 63.2 | 149.1 | Up | 09:41:37 - 10:11:37 | 376 |
| Lone Pine | 09:56:38 | -37.1 | Dark | Up | 63.9 | 149.0 | Up | 09:41:38 - 10:11:38 | 295 |
| Beatty | 09:56:30 | -36.2 | Dark | Up | 64.2 | 151.9 | Up | 09:41:30 - 10:11:30 | 286 |
| Niwot | 09:55:23 | -27.6 | Dark | Up | 63.4 | 178.1 | Up | 09:40:23 - 10:10:23 | 283 |
| SwRI | 09:55:23 | -27.8 | Dark | Up | 63.5 | 177.9 | Up | 09:40:23 - 10:10:23 | 276 |
| CPSLO | 09:56:55 | -39.4 | Dark | Up | 63.9 | 142.6 | Up | 09:41:55 - 10:11:55 | 251 |
| Indian Springs | 09:56:25 | -35.9 | Dark | Up | 64.9 | 153.8 | Up | 09:41:25 - 10:11:25 | 225 |
| Henderson | 09:56:23 | -35.9 | Dark | Up | 65.6 | 154.8 | Up | 09:41:23 - 10:11:23 | 154 |
| Searchlight/Boulder City | 09:56:24 | -36.3 | Dark | Up | 66.1 | 154.4 | Up | 09:41:24 - 10:11:24 | 98 |
| Wildwood | 09:56:47 | -39.3 | Dark | Up | 65.8 | 145.1 | Up | 09:41:47 - 10:11:47 | 75 |
| Patrick | 09:56:19 | -35.8 | Dark | Up | 66.5 | 156.7 | Up | 09:41:19 - 10:11:19 | 63 |
| Laughlin/Bullhead City | 09:56:23 | -36.3 | Dark | Up | 66.5 | 154.8 | Up | 09:41:23 - 10:11:23 | 60 |
| Kingman/Dolan Springs | 09:56:20 | -36.0 | Dark | Up | 66.7 | 156.0 | Up | 09:41:20 - 10:11:20 | 47 |
| Mohave Valley | 09:56:24 | -36.5 | Dark | Up | 66.8 | 154.6 | Up | 09:41:24 - 10:11:24 | 33 |
| DCO | 09:56:16 | -35.6 | Dark | Up | 67.0 | 158.0 | Up | 09:41:16 - 10:11:16 | 13 |
| Lake Havasu City | 09:56:23 | -36.7 | Dark | Up | 67.2 | 154.8 | Up | 09:41:23 - 10:11:23 | -12 |
| Idyllwild | 09:56:38 | -38.5 | Dark | Up | 67.0 | 148.6 | Up | 09:41:38 - 10:11:38 | -16 |
| Parker | 09:56:24 | -36.9 | Dark | Up | 67.6 | 154.5 | Up | 09:41:24 - 10:11:24 | -47 |
| Blythe | 09:56:27 | -37.4 | Dark | Up | 67.9 | 153.2 | Up | 09:41:27 - 10:11:27 | -89 |
| Calipatria | 09:56:33 | -38.3 | Dark | Up | 68.0 | 150.5 | Up | 09:41:33 - 10:11:33 | -110 |
| Yuma | 09:56:30 | -38.1 | Dark | Up | 68.7 | 152.1 | Up | 09:41:30 - 10:11:30 | -178 |
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 99RX214, (2021/09/03 09:56UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 40.29 48 6Bet Ari 01:54:38.5 +20:48:27 2.6 7.42 82 PPM 117718 01:50:51.9 +11:02:35 6.0 2.49 87 PPM 117736 01:51:57.6 +13:25:38 8.5 0.66 86 PPM 117700 01:49:09.4 +13:33:12 10.0 0.06 87 99RX214 01:49:15.1 +13:30:11 14.6 87 Positions are for J2000
Event circumstances last updated at 2019/03/15 21:39:45 UT
Marc W. Buie, Southwest Research Institute