Event between 14WA509 and star GA0980:03663710 with event index number of 1051349
Geocentric closest approach at 2019/03/19 07:17:40 UTC
J2000 position of star is 11:02:36.9 +08:25:49
Equinox of date position of star is 11:03:36.6 +08:19:38
Stellar brightness G=15.1,
use SENSEUP=128
Star is 10 degrees from the moon.
Moon is 95% illuminated.
TNO apparent brightness V=22.3
[RECON map]
TNO is 42.8 AU from the Sun
and 41.9 AU from the Earth.
The TNO is moving 24.5
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 101 seconds.
The 1-sigma cross-track error in the shadow position is
1844 km.
The sky-plane scale is
30359.5 km/arcsec.
The TNO has an absolute magnitude Hv=6.0
Diameter=378.5 km assuming a 5% albedo -- 15.5 sec chord
Diameter=154.5 km assuming a 30% albedo -- 6.3 sec chord
Dynamical classification is CLASSICAL
Star training set for 14WA509, (2019/03/19 07:18UT) Object RA Dec mag sep mel Regulus 10:09:23.6 +11:52:21 1.3 13.81 5 68Del Leo 11:15:07.6 +20:25:05 2.6 12.41 14 63Chi Leo 11:06:00.4 +07:13:54 4.6 1.24 11 PPM 157467 11:04:43.4 +08:37:34 8.2 0.41 10 PPM 157448 11:03:20.8 +08:30:15 9.4 0.19 10 14WA509 11:03:36.9 +08:19:36 15.1 10 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 15.2 km
RECON observability=1.0 and success probability=6.7%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 07:18:42 | -39.7 | Dark | Up | 48.5 | 181.8 | Up | 07:09:48 - 07:27:36 | 4524 |
| Summerland | 07:18:42 | -39.7 | Dark | Up | 48.6 | 181.2 | Up | 07:09:48 - 07:27:36 | 4511 |
| Penticton | 07:18:42 | -40.1 | Dark | Up | 48.9 | 181.5 | Up | 07:09:48 - 07:27:36 | 4492 |
| Okanagan Falls | 07:18:41 | -40.2 | Dark | Up | 49.1 | 181.5 | Up | 07:09:47 - 07:27:35 | 4477 |
| Oliver | 07:18:41 | -40.4 | Dark | Up | 49.2 | 181.5 | Up | 07:09:47 - 07:27:35 | 4465 |
| Anarchist Mountain Observatory | 07:18:40 | -40.6 | Dark | Up | 49.4 | 181.8 | Up | 07:09:46 - 07:27:34 | 4457 |
| Oroville | 07:18:40 | -40.7 | Dark | Up | 49.5 | 181.7 | Up | 07:09:46 - 07:27:34 | 4449 |
| Tonasket | 07:18:40 | -40.9 | Dark | Up | 49.7 | 181.7 | Up | 07:09:46 - 07:27:34 | 4431 |
| Okanogan | 07:18:41 | -41.2 | Dark | Up | 50.1 | 181.5 | Up | 07:09:47 - 07:27:35 | 4400 |
| Brewster | 07:18:40 | -41.4 | Dark | Up | 50.3 | 181.2 | Up | 07:09:46 - 07:27:34 | 4373 |
| Manson/Chelan | 07:18:41 | -41.5 | Dark | Up | 50.5 | 180.6 | Up | 07:09:47 - 07:27:35 | 4346 |
| Entiat | 07:18:42 | -41.7 | Dark | Up | 50.8 | 180.5 | Up | 07:09:48 - 07:27:36 | 4327 |
| Wenatchee | 07:18:41 | -42.0 | Dark | Up | 51.0 | 180.4 | Up | 07:09:47 - 07:27:35 | 4304 |
| Ellensburg | 07:18:41 | -42.3 | Dark | Up | 51.4 | 180.0 | Up | 07:09:47 - 07:27:35 | 4264 |
| Pasco | 07:18:36 | -43.3 | Dark | Up | 52.2 | 182.3 | Up | 07:09:42 - 07:27:30 | 4246 |
| PNWRO | 07:18:35 | -43.6 | Dark | Up | 52.4 | 182.7 | Up | 07:09:41 - 07:27:29 | 4232 |
| Yakima | 07:18:41 | -42.7 | Dark | Up | 51.8 | 180.0 | Up | 07:09:47 - 07:27:35 | 4231 |
| Toppenish/White Swan | 07:18:39 | -42.9 | Dark | Up | 52.1 | 180.3 | Up | 07:09:45 - 07:27:33 | 4218 |
| George/Umatilla | 07:18:36 | -43.6 | Dark | Up | 52.5 | 182.0 | Up | 07:09:42 - 07:27:30 | 4212 |
| Niwot | 07:17:44 | -50.5 | Dark | Up | 55.6 | 207.2 | Up | 07:08:50 - 07:26:38 | 4197 |
| SwRI | 07:17:43 | -50.6 | Dark | Up | 55.7 | 207.1 | Up | 07:08:49 - 07:26:37 | 4185 |
| Goldendale | 07:18:40 | -43.4 | Dark | Up | 52.6 | 179.6 | Up | 07:09:46 - 07:27:34 | 4161 |
| The Dalles | 07:18:41 | -43.5 | Dark | Up | 52.8 | 179.0 | Up | 07:09:47 - 07:27:35 | 4131 |
| Maupin | 07:18:40 | -43.9 | Dark | Up | 53.3 | 179.2 | Up | 07:09:46 - 07:27:34 | 4100 |
| Madras/Culver | 07:18:40 | -44.4 | Dark | Up | 53.8 | 179.1 | Up | 07:09:46 - 07:27:34 | 4053 |
| Redmond | 07:18:40 | -44.7 | Dark | Up | 54.2 | 179.0 | Up | 07:09:46 - 07:27:34 | 4022 |
| Sisters | 07:18:41 | -44.6 | Dark | Up | 54.1 | 178.3 | Up | 07:09:47 - 07:27:35 | 4012 |
| Bend | 07:18:39 | -44.9 | Dark | Up | 54.4 | 178.7 | Up | 07:09:45 - 07:27:33 | 4000 |
| Oregon Observatory | 07:18:40 | -45.1 | Dark | Up | 54.5 | 178.5 | Up | 07:09:46 - 07:27:34 | 3981 |
| La Pine/Gilchrist | 07:18:39 | -45.2 | Dark | Up | 54.7 | 178.4 | Up | 07:09:45 - 07:27:33 | 3962 |
| North Lake | 07:18:37 | -45.8 | Dark | Up | 55.2 | 179.4 | Up | 07:09:43 - 07:27:31 | 3944 |
| Paisley | 07:18:35 | -46.4 | Dark | Up | 55.7 | 180.0 | Up | 07:09:41 - 07:27:29 | 3908 |
| Lakeview | 07:18:34 | -46.9 | Dark | Up | 56.2 | 180.3 | Up | 07:09:40 - 07:27:28 | 3871 |
| Chiloquin | 07:18:39 | -46.2 | Dark | Up | 55.8 | 177.7 | Up | 07:09:45 - 07:27:33 | 3857 |
| Klamath Falls | 07:18:39 | -46.5 | Dark | Up | 56.2 | 177.8 | Up | 07:09:45 - 07:27:33 | 3830 |
| Cedarville | 07:18:32 | -47.6 | Dark | Up | 56.9 | 180.7 | Up | 07:09:38 - 07:27:26 | 3820 |
| Tulelake | 07:18:37 | -46.9 | Dark | Up | 56.5 | 178.3 | Up | 07:09:43 - 07:27:31 | 3816 |
| Fall River/Burney | 07:18:36 | -47.7 | Dark | Up | 57.4 | 178.4 | Up | 07:09:42 - 07:27:30 | 3740 |
| Susanville | 07:18:32 | -48.5 | Dark | Up | 58.0 | 179.8 | Up | 07:09:38 - 07:27:26 | 3708 |
| Gimple | 07:18:32 | -48.7 | Dark | Up | 58.3 | 179.4 | Up | 07:09:38 - 07:27:26 | 3677 |
| Greenville | 07:18:33 | -48.7 | Dark | Up | 58.3 | 179.2 | Up | 07:09:39 - 07:27:27 | 3675 |
| Portola | 07:18:31 | -49.1 | Dark | Up | 58.6 | 180.1 | Up | 07:09:37 - 07:27:25 | 3661 |
| Reno | 07:18:28 | -49.5 | Dark | Up | 58.9 | 181.3 | Up | 07:09:34 - 07:27:22 | 3659 |
| Quincy | 07:18:32 | -48.9 | Dark | Up | 58.5 | 179.2 | Up | 07:09:38 - 07:27:26 | 3657 |
| Yerington | 07:18:25 | -50.2 | Dark | Up | 59.4 | 182.6 | Up | 07:09:31 - 07:27:19 | 3632 |
| Carson City | 07:18:28 | -49.9 | Dark | Up | 59.2 | 181.4 | Up | 07:09:34 - 07:27:22 | 3628 |
| Tonopah | 07:18:18 | -51.5 | Dark | Up | 60.2 | 186.5 | Up | 07:09:24 - 07:27:12 | 3615 |
| Hawthorne | 07:18:22 | -50.8 | Dark | Up | 59.9 | 183.7 | Up | 07:09:28 - 07:27:16 | 3609 |
| Gardnerville | 07:18:27 | -50.1 | Dark | Up | 59.5 | 181.5 | Up | 07:09:33 - 07:27:21 | 3608 |
| Lee Vining | 07:18:24 | -51.2 | Dark | Up | 60.4 | 182.8 | Up | 07:09:30 - 07:27:18 | 3542 |
| Indian Springs | 07:18:10 | -53.3 | Dark | Up | 61.5 | 189.9 | Up | 07:09:16 - 07:27:04 | 3536 |
| Beatty | 07:18:14 | -52.8 | Dark | Up | 61.3 | 187.6 | Up | 07:09:20 - 07:27:08 | 3528 |
| Bishop | 07:18:21 | -51.9 | Dark | Up | 61.0 | 184.3 | Up | 07:09:27 - 07:27:15 | 3514 |
| Henderson | 07:18:06 | -53.9 | Dark | Up | 61.9 | 191.5 | Up | 07:09:12 - 07:27:00 | 3513 |
| Patrick | 07:18:02 | -54.7 | Dark | Up | 62.4 | 194.1 | Up | 07:09:08 - 07:26:56 | 3497 |
| DCO | 07:17:59 | -55.1 | Dark | Up | 62.5 | 195.7 | Up | 07:09:05 - 07:26:53 | 3495 |
| Kingman/Dolan Springs | 07:18:02 | -54.9 | Dark | Up | 62.6 | 193.8 | Up | 07:09:08 - 07:26:56 | 3470 |
| Searchlight/Boulder City | 07:18:05 | -54.5 | Dark | Up | 62.5 | 191.9 | Up | 07:09:11 - 07:26:59 | 3464 |
| Lone Pine | 07:18:18 | -52.8 | Dark | Up | 61.7 | 185.1 | Up | 07:09:24 - 07:27:12 | 3457 |
| Laughlin/Bullhead City | 07:18:04 | -54.9 | Dark | Up | 62.7 | 192.7 | Up | 07:09:10 - 07:26:58 | 3450 |
| Mohave Valley | 07:18:03 | -55.1 | Dark | Up | 63.0 | 192.8 | Up | 07:09:09 - 07:26:57 | 3426 |
| Lake Havasu City | 07:18:01 | -55.6 | Dark | Up | 63.3 | 193.5 | Up | 07:09:07 - 07:26:55 | 3399 |
| Parker | 07:18:00 | -55.9 | Dark | Up | 63.7 | 193.7 | Up | 07:09:06 - 07:26:54 | 3368 |
| Blythe | 07:18:02 | -56.4 | Dark | Up | 64.2 | 193.3 | Up | 07:09:08 - 07:26:56 | 3310 |
| CPSLO | 07:18:24 | -53.3 | Dark | Up | 63.1 | 179.7 | Up | 07:09:30 - 07:27:18 | 3250 |
| Idyllwild | 07:18:09 | -55.8 | Dark | Up | 64.5 | 188.6 | Up | 07:09:15 - 07:27:03 | 3245 |
| Calipatria | 07:18:03 | -56.7 | Dark | Up | 64.9 | 191.5 | Up | 07:09:09 - 07:26:57 | 3231 |
| Yuma | 07:17:59 | -57.3 | Dark | Up | 65.2 | 193.7 | Up | 07:09:05 - 07:26:53 | 3224 |
| Wildwood | 07:18:15 | -55.0 | Dark | Up | 64.3 | 184.3 | Up | 07:09:21 - 07:27:09 | 3211 |
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 14WA509, (2019/03/19 07:18UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 13.81 5 68Del Leo 11:14:06.7 +20:31:23 2.6 12.41 14 63Chi Leo 11:05:00.6 +07:20:09 4.6 1.24 11 PPM 157467 11:03:43.4 +08:43:47 8.2 0.41 10 PPM 157448 11:02:20.8 +08:36:28 9.4 0.19 10 14WA509 11:02:36.9 +08:25:49 15.1 10 Positions are for J2000
Event circumstances last updated at 2019/02/12 06:52:11 UT
Marc W. Buie, Southwest Research Institute