Event between 14WS509 and star GA1100:00680269 with event index number of 230771
Geocentric closest approach at 2019/12/12 02:55:49 UTC
J2000 position of star is 04:40:01.8 +21:33:58
Equinox of date position of star is 04:41:11.2 +21:36:10
Stellar brightness G=14.9,
use SENSEUP=128
Star is 7 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=22.5
[RECON map]
TNO is 42.8 AU from the Sun
and 41.8 AU from the Earth.
The TNO is moving 25.3
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 181 seconds.
The 1-sigma cross-track error in the shadow position is
1852 km.
The sky-plane scale is
30331.3 km/arcsec.
The TNO has an absolute magnitude Hv=6.2
Diameter=346.7 km assuming a 5% albedo -- 13.7 sec chord
Diameter=141.6 km assuming a 30% albedo -- 5.6 sec chord
Dynamical classification is CLASSICAL
Star training set for 14WS509, (2019/12/12 02:56UT) Object RA Dec mag sep mel Aldebaran 04:37:04.0 +16:32:52 0.8 5.15 10 3Iot Aur 04:58:17.7 +33:11:45 2.7 12.19 12 PPM 093646 04:39:26.6 +20:43:24 5.9 0.97 8 PPM 093627 04:37:28.9 +21:43:42 8.5 0.88 8 PPM 093664 04:40:49.9 +21:33:19 8.6 0.10 7 14WS509 04:41:13.0 +21:36:13 14.9 7 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 17.5 km
RECON observability=1.0 and success probability=4.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 02:57:56 | -28.1 | Dark | Up | 32.7 | 94.8 | Up | 02:42:56 - 03:12:56 | 5706 |
| Summerland | 02:57:58 | -27.9 | Dark | Up | 32.5 | 94.4 | Up | 02:42:58 - 03:12:58 | 5693 |
| Penticton | 02:57:58 | -27.9 | Dark | Up | 32.6 | 94.5 | Up | 02:42:58 - 03:12:58 | 5685 |
| Okanagan Falls | 02:57:59 | -27.9 | Dark | Up | 32.6 | 94.3 | Up | 02:42:59 - 03:12:59 | 5672 |
| Oliver | 02:57:59 | -27.9 | Dark | Up | 32.6 | 94.2 | Up | 02:42:59 - 03:12:59 | 5660 |
| Anarchist Mountain Observatory | 02:57:59 | -28.0 | Dark | Up | 32.8 | 94.3 | Up | 02:42:59 - 03:12:59 | 5642 |
| Oroville | 02:58:00 | -28.0 | Dark | Up | 32.7 | 94.2 | Up | 02:43:00 - 03:13:00 | 5639 |
| Tonasket | 02:58:01 | -28.0 | Dark | Up | 32.8 | 94.0 | Up | 02:43:01 - 03:13:01 | 5622 |
| Okanogan | 02:58:02 | -27.8 | Dark | Up | 32.7 | 93.7 | Up | 02:43:02 - 03:13:02 | 5602 |
| Brewster | 02:58:04 | -27.7 | Dark | Up | 32.6 | 93.4 | Up | 02:43:04 - 03:13:04 | 5588 |
| Manson/Chelan | 02:58:04 | -27.4 | Dark | Up | 32.3 | 93.0 | Up | 02:43:04 - 03:13:04 | 5584 |
| Entiat | 02:58:05 | -27.4 | Dark | Up | 32.3 | 92.8 | Up | 02:43:05 - 03:13:05 | 5570 |
| Wenatchee | 02:58:06 | -27.3 | Dark | Up | 32.3 | 92.5 | Up | 02:43:06 - 03:13:06 | 5554 |
| Ellensburg | 02:58:07 | -27.1 | Dark | Up | 32.1 | 92.1 | Up | 02:43:07 - 03:13:07 | 5530 |
| Yakima | 02:58:09 | -27.1 | Dark | Up | 32.1 | 91.9 | Up | 02:43:09 - 03:13:09 | 5501 |
| Toppenish/White Swan | 02:58:09 | -27.1 | Dark | Up | 32.3 | 91.9 | Up | 02:43:09 - 03:13:09 | 5480 |
| Goldendale | 02:58:12 | -26.8 | Dark | Up | 32.0 | 91.2 | Up | 02:43:12 - 03:13:12 | 5451 |
| The Dalles | 02:58:13 | -26.5 | Dark | Up | 31.7 | 90.8 | Up | 02:43:13 - 03:13:13 | 5445 |
| Pasco | 02:58:09 | -28.0 | Dark | Up | 33.1 | 92.7 | Up | 02:43:09 - 03:13:09 | 5433 |
| George/Umatilla | 02:58:10 | -27.8 | Dark | Up | 33.0 | 92.3 | Up | 02:43:10 - 03:13:10 | 5415 |
| Maupin | 02:58:14 | -26.6 | Dark | Up | 31.8 | 90.6 | Up | 02:43:14 - 03:13:14 | 5411 |
| PNWRO | 02:58:09 | -28.1 | Dark | Up | 33.3 | 92.7 | Up | 02:43:09 - 03:13:09 | 5408 |
| Madras/Culver | 02:58:15 | -26.5 | Dark | Up | 31.8 | 90.3 | Up | 02:43:15 - 03:13:15 | 5371 |
| Sisters | 02:58:18 | -26.1 | Dark | Up | 31.5 | 89.7 | Up | 02:43:18 - 03:13:18 | 5359 |
| Redmond | 02:58:17 | -26.4 | Dark | Up | 31.8 | 90.0 | Up | 02:43:17 - 03:13:17 | 5345 |
| Bend | 02:58:17 | -26.3 | Dark | Up | 31.7 | 89.8 | Up | 02:43:17 - 03:13:17 | 5333 |
| Oregon Observatory | 02:58:18 | -26.1 | Dark | Up | 31.6 | 89.6 | Up | 02:43:18 - 03:13:18 | 5324 |
| La Pine/Gilchrist | 02:58:19 | -26.1 | Dark | Up | 31.5 | 89.4 | Up | 02:43:19 - 03:13:19 | 5310 |
| North Lake | 02:58:20 | -26.5 | Dark | Up | 32.0 | 89.6 | Up | 02:43:20 - 03:13:20 | 5257 |
| Chiloquin | 02:58:23 | -25.7 | Dark | Up | 31.3 | 88.5 | Up | 02:43:23 - 03:13:23 | 5235 |
| Klamath Falls | 02:58:25 | -25.7 | Dark | Up | 31.3 | 88.4 | Up | 02:43:25 - 03:13:25 | 5205 |
| Paisley | 02:58:21 | -26.6 | Dark | Up | 32.2 | 89.5 | Up | 02:43:21 - 03:13:21 | 5203 |
| Tulelake | 02:58:24 | -25.9 | Dark | Up | 31.5 | 88.4 | Up | 02:43:24 - 03:13:24 | 5174 |
| Lakeview | 02:58:23 | -26.7 | Dark | Up | 32.4 | 89.3 | Up | 02:43:23 - 03:13:23 | 5157 |
| Fall River/Burney | 02:58:27 | -25.8 | Dark | Up | 31.6 | 87.9 | Up | 02:43:27 - 03:13:27 | 5100 |
| Cedarville | 02:58:25 | -26.8 | Dark | Up | 32.5 | 89.0 | Up | 02:43:25 - 03:13:25 | 5099 |
| Susanville | 02:58:28 | -26.3 | Dark | Up | 32.1 | 88.0 | Up | 02:43:28 - 03:13:28 | 5025 |
| Greenville | 02:58:29 | -26.0 | Dark | Up | 31.9 | 87.6 | Up | 02:43:29 - 03:13:29 | 5012 |
| Gimple | 02:58:30 | -26.1 | Dark | Up | 32.0 | 87.7 | Up | 02:43:30 - 03:13:30 | 5009 |
| Quincy | 02:58:30 | -26.0 | Dark | Up | 31.9 | 87.5 | Up | 02:43:30 - 03:13:30 | 4995 |
| Portola | 02:58:30 | -26.3 | Dark | Up | 32.3 | 87.7 | Up | 02:43:30 - 03:13:30 | 4970 |
| Reno | 02:58:30 | -26.8 | Dark | Up | 32.7 | 87.9 | Up | 02:43:30 - 03:13:30 | 4926 |
| Carson City | 02:58:30 | -26.7 | Dark | Up | 32.7 | 87.7 | Up | 02:43:30 - 03:13:30 | 4896 |
| Gardnerville | 02:58:31 | -26.7 | Dark | Up | 32.8 | 87.6 | Up | 02:43:31 - 03:13:31 | 4874 |
| Yerington | 02:58:30 | -27.2 | Dark | Up | 33.2 | 88.0 | Up | 02:43:30 - 03:13:30 | 4859 |
| Hawthorne | 02:58:31 | -27.5 | Dark | Up | 33.6 | 88.0 | Up | 02:43:31 - 03:13:31 | 4802 |
| Lee Vining | 02:58:33 | -27.1 | Dark | Up | 33.2 | 87.4 | Up | 02:43:33 - 03:13:33 | 4771 |
| Tonopah | 02:58:31 | -28.6 | Dark | Up | 34.7 | 88.5 | Up | 02:43:31 - 03:13:31 | 4716 |
| Bishop | 02:58:34 | -27.5 | Dark | Up | 33.8 | 87.4 | Up | 02:43:34 - 03:13:34 | 4696 |
| Lone Pine | 02:58:35 | -27.7 | Dark | Up | 34.0 | 87.1 | Up | 02:43:35 - 03:13:35 | 4620 |
| Beatty | 02:58:33 | -28.8 | Dark | Up | 35.1 | 88.0 | Up | 02:43:33 - 03:13:33 | 4601 |
| CPSLO | 02:58:43 | -25.4 | Dark | Up | 31.8 | 84.8 | Up | 02:43:43 - 03:13:43 | 4597 |
| Indian Springs | 02:58:32 | -29.6 | Dark | Up | 35.9 | 88.4 | Up | 02:43:32 - 03:13:32 | 4536 |
| Niwot | 02:58:04 | -37.9 | Dark | Up | 43.9 | 98.2 | Up | 02:43:04 - 03:13:04 | 4509 |
| SwRI | 02:58:04 | -37.9 | Dark | Up | 43.8 | 98.0 | Up | 02:43:04 - 03:13:04 | 4502 |
| Henderson | 02:58:33 | -30.1 | Dark | Up | 36.5 | 88.4 | Up | 02:43:33 - 03:13:33 | 4466 |
| Wildwood | 02:58:44 | -26.8 | Dark | Up | 33.4 | 85.1 | Up | 02:43:44 - 03:13:44 | 4419 |
| Searchlight/Boulder City | 02:58:34 | -30.0 | Dark | Up | 36.5 | 88.0 | Up | 02:43:34 - 03:13:34 | 4413 |
| Laughlin/Bullhead City | 02:58:34 | -30.3 | Dark | Up | 36.8 | 88.0 | Up | 02:43:34 - 03:13:34 | 4375 |
| Patrick | 02:58:32 | -30.9 | Dark | Up | 37.4 | 88.6 | Up | 02:43:32 - 03:13:32 | 4373 |
| Kingman/Dolan Springs | 02:58:33 | -30.7 | Dark | Up | 37.2 | 88.3 | Up | 02:43:33 - 03:13:33 | 4359 |
| Mohave Valley | 02:58:35 | -30.2 | Dark | Up | 36.8 | 87.8 | Up | 02:43:35 - 03:13:35 | 4351 |
| Idyllwild | 02:58:41 | -28.3 | Dark | Up | 35.0 | 85.8 | Up | 02:43:41 - 03:13:41 | 4321 |
| DCO | 02:58:32 | -31.4 | Dark | Up | 37.9 | 88.7 | Up | 02:43:32 - 03:13:32 | 4321 |
| Lake Havasu City | 02:58:35 | -30.4 | Dark | Up | 37.0 | 87.6 | Up | 02:43:35 - 03:13:35 | 4306 |
| Parker | 02:58:36 | -30.4 | Dark | Up | 37.0 | 87.4 | Up | 02:43:36 - 03:13:36 | 4273 |
| Blythe | 02:58:38 | -30.0 | Dark | Up | 36.7 | 86.9 | Up | 02:43:38 - 03:13:38 | 4237 |
| Calipatria | 02:58:41 | -29.2 | Dark | Up | 35.9 | 86.0 | Up | 02:43:41 - 03:13:41 | 4225 |
| Yuma | 02:58:41 | -29.9 | Dark | Up | 36.6 | 86.1 | Up | 02:43:41 - 03:13:41 | 4154 |
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 14WS509, (2019/12/12 02:56UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 5.15 10 3Iot Aur 04:56:59.6 +33:09:58 2.7 12.19 12 PPM 093646 04:38:15.8 +20:41:05 5.9 0.97 8 PPM 093627 04:36:17.7 +21:41:20 8.5 0.88 8 PPM 093664 04:39:38.6 +21:31:02 8.6 0.10 7 14WS509 04:40:01.8 +21:33:58 14.9 7 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:59:34 UT
Marc W. Buie, Southwest Research Institute