Event between (472262) 14QN441 and star GA0840:00223368 with event index number of 179444
Geocentric closest approach at 2019/02/04 02:41:13 UTC
J2000 position of star is 02:49:02.1 -04:44:46
Equinox of date position of star is 02:49:57.5 -04:40:13
Stellar brightness G=16.0,
use SENSEUP=128
Star is 91 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=22.0
[RECON map]
TNO is 33.3 AU from the Sun
and 33.4 AU from the Earth.
The TNO is moving 13.2
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 129 seconds.
The 1-sigma cross-track error in the shadow position is
1915 km.
The sky-plane scale is
24235.5 km/arcsec.
The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 21.9 sec chord
Diameter=117.7 km assuming a 30% albedo -- 8.9 sec chord
Dynamical classification is SCATNEAR
Star training set for 472262, (2019/02/04 02:41UT) Object RA Dec mag sep mel Aldebaran 04:37:01.1 +16:32:46 0.8 33.91 123 68Omi Cet 02:20:18.7 -02:53:31 2.0 7.61 85 PPM 185207 02:57:35.0 -03:38:11 5.2 2.16 93 PPM 185094 02:51:18.7 -04:54:30 7.7 0.41 91 PPM 185057 02:49:38.6 -04:34:00 9.4 0.13 91 472262 02:49:59.4 -04:40:04 16.0 91 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 11.2 km
RECON observability=1.0 and success probability=4.1%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Penticton | 02:50:27 | -18.5 | Dark | Down | 34.2 | 197.9 | Up | 02:39:14 - 03:01:39 | 6693 |
| Manson/Chelan | 02:50:20 | -18.0 | Dark | Down | 35.9 | 197.5 | Up | 02:39:08 - 03:01:33 | 6659 |
| Oroville | 02:50:25 | -18.6 | Dark | Down | 34.8 | 198.2 | Up | 02:39:13 - 03:01:38 | 6658 |
| Entiat | 02:50:19 | -17.9 | AT | Down | 36.1 | 197.5 | Up | 02:39:07 - 03:01:32 | 6654 |
| Wenatchee | 02:50:17 | -17.8 | AT | Down | 36.4 | 197.4 | Up | 02:39:05 - 03:01:30 | 6649 |
| Tonasket | 02:50:24 | -18.6 | Dark | Down | 35.0 | 198.2 | Up | 02:39:12 - 03:01:37 | 6648 |
| Ellensburg | 02:50:16 | -17.6 | AT | Down | 36.8 | 197.2 | Up | 02:39:03 - 03:01:28 | 6646 |
| Brewster | 02:50:21 | -18.3 | Dark | Down | 35.6 | 197.9 | Up | 02:39:08 - 03:01:33 | 6643 |
| Okanogan | 02:50:22 | -18.4 | Dark | Down | 35.3 | 198.1 | Up | 02:39:10 - 03:01:35 | 6642 |
| Yakima | 02:50:14 | -17.6 | AT | Down | 37.2 | 197.3 | Up | 02:39:01 - 03:01:26 | 6629 |
| The Dalles | 02:50:09 | -17.0 | AT | Down | 38.3 | 196.7 | Up | 02:38:56 - 03:01:21 | 6628 |
| Goldendale | 02:50:10 | -17.3 | AT | Down | 38.0 | 197.1 | Up | 02:38:58 - 03:01:23 | 6612 |
| Toppenish/White Swan | 02:50:13 | -17.7 | AT | Down | 37.4 | 197.5 | Up | 02:39:01 - 03:01:26 | 6607 |
| Maupin | 02:50:07 | -17.1 | AT | Down | 38.7 | 196.9 | Up | 02:38:54 - 03:01:19 | 6602 |
| Sisters | 02:50:02 | -16.6 | AT | Down | 39.7 | 196.5 | Up | 02:38:49 - 03:01:14 | 6598 |
| Madras/Culver | 02:50:03 | -17.0 | AT | Down | 39.2 | 197.0 | Up | 02:38:50 - 03:01:15 | 6580 |
| Oregon Observatory | 02:50:00 | -16.6 | AT | Down | 40.0 | 196.7 | Up | 02:38:48 - 03:01:13 | 6571 |
| Bend | 02:50:01 | -16.8 | AT | Down | 39.8 | 196.9 | Up | 02:38:49 - 03:01:14 | 6569 |
| Redmond | 02:50:01 | -16.9 | AT | Down | 39.6 | 197.0 | Up | 02:38:49 - 03:01:14 | 6568 |
| La Pine/Gilchrist | 02:49:59 | -16.6 | AT | Down | 40.2 | 196.7 | Up | 02:38:47 - 03:01:12 | 6566 |
| Chiloquin | 02:49:53 | -16.2 | AT | Down | 41.4 | 196.5 | Up | 02:38:40 - 03:01:05 | 6543 |
| Klamath Falls | 02:49:52 | -16.2 | AT | Down | 41.7 | 196.7 | Up | 02:38:39 - 03:01:04 | 6522 |
| Pasco | 02:50:16 | -18.6 | Dark | Down | 37.3 | 199.1 | Up | 02:39:03 - 03:01:28 | 6513 |
| George/Umatilla | 02:50:14 | -18.4 | Dark | Down | 37.6 | 198.9 | Up | 02:39:01 - 03:01:26 | 6513 |
| North Lake | 02:49:58 | -17.0 | AT | Down | 40.5 | 197.6 | Up | 02:38:46 - 03:01:11 | 6502 |
| Tulelake | 02:49:51 | -16.4 | AT | Down | 41.9 | 197.1 | Up | 02:38:38 - 03:01:03 | 6487 |
| PNWRO | 02:50:15 | -18.7 | Dark | Down | 37.4 | 199.5 | Up | 02:39:02 - 03:01:27 | 6486 |
| Paisley | 02:49:57 | -17.1 | AT | Down | 41.0 | 198.2 | Up | 02:38:44 - 03:01:09 | 6451 |
| Fall River/Burney | 02:49:47 | -16.3 | AT | Down | 42.7 | 197.5 | Up | 02:38:35 - 03:01:00 | 6441 |
| Lakeview | 02:49:55 | -17.2 | AT | Down | 41.4 | 198.6 | Up | 02:38:42 - 03:01:07 | 6413 |
| Cedarville | 02:49:52 | -17.3 | AT | Down | 42.0 | 199.0 | Up | 02:38:39 - 03:01:04 | 6370 |
| Greenville | 02:49:44 | -16.5 | AT | Down | 43.5 | 198.3 | Up | 02:38:31 - 03:00:56 | 6365 |
| Gimple | 02:49:44 | -16.5 | AT | Down | 43.5 | 198.4 | Up | 02:38:31 - 03:00:56 | 6359 |
| Quincy | 02:49:42 | -16.5 | AT | Down | 43.7 | 198.4 | Up | 02:38:30 - 03:00:55 | 6356 |
| Susanville | 02:49:45 | -16.8 | AT | Down | 43.2 | 198.6 | Up | 02:38:33 - 03:00:58 | 6355 |
| Portola | 02:49:43 | -16.8 | AT | Down | 43.7 | 199.0 | Up | 02:38:31 - 03:00:56 | 6313 |
| Reno | 02:49:43 | -17.3 | AT | Down | 43.8 | 200.0 | Up | 02:38:30 - 03:00:55 | 6250 |
| Carson City | 02:49:42 | -17.2 | AT | Down | 44.1 | 200.1 | Up | 02:38:29 - 03:00:54 | 6232 |
| Gardnerville | 02:49:41 | -17.2 | AT | Down | 44.3 | 200.3 | Up | 02:38:28 - 03:00:53 | 6216 |
| Yerington | 02:49:42 | -17.7 | AT | Down | 44.1 | 201.0 | Up | 02:38:29 - 03:00:54 | 6173 |
| Lee Vining | 02:49:37 | -17.6 | AT | Down | 45.1 | 201.4 | Up | 02:38:25 - 03:00:50 | 6120 |
| CPSLO | 02:49:19 | -15.9 | AT | Down | 48.0 | 200.2 | Up | 02:38:07 - 03:00:32 | 6119 |
| Hawthorne | 02:49:41 | -18.1 | Dark | Down | 44.4 | 201.9 | Up | 02:38:29 - 03:00:54 | 6109 |
| Bishop | 02:49:36 | -18.1 | Dark | Down | 45.4 | 202.6 | Up | 02:38:24 - 03:00:49 | 6034 |
| Tonopah | 02:49:42 | -19.1 | Dark | Down | 44.4 | 204.0 | Up | 02:38:29 - 03:00:54 | 5975 |
| Lone Pine | 02:49:32 | -18.2 | Dark | Down | 46.0 | 203.4 | Up | 02:38:19 - 03:00:44 | 5970 |
| Wildwood | 02:49:17 | -17.4 | AT | Down | 48.5 | 203.6 | Up | 02:38:05 - 03:00:30 | 5891 |
| Beatty | 02:49:37 | -19.3 | Dark | Down | 45.3 | 205.0 | Up | 02:38:25 - 03:00:50 | 5881 |
| Indian Springs | 02:49:37 | -20.2 | Dark | Down | 45.2 | 206.6 | Up | 02:38:25 - 03:00:50 | 5779 |
| Idyllwild | 02:49:20 | -18.9 | Dark | Down | 48.2 | 206.5 | Up | 02:38:08 - 03:00:33 | 5717 |
| Henderson | 02:49:37 | -20.7 | Dark | Down | 45.4 | 207.8 | Up | 02:38:24 - 03:00:49 | 5696 |
| Searchlight/Boulder City | 02:49:34 | -20.6 | Dark | Down | 45.9 | 208.1 | Up | 02:38:21 - 03:00:46 | 5661 |
| Laughlin/Bullhead City | 02:49:34 | -20.9 | Dark | Down | 46.1 | 208.7 | Up | 02:38:21 - 03:00:46 | 5617 |
| Mohave Valley | 02:49:32 | -20.9 | Dark | Down | 46.3 | 208.9 | Up | 02:38:19 - 03:00:44 | 5603 |
| Calipatria | 02:49:19 | -19.8 | Dark | Down | 48.3 | 208.4 | Up | 02:38:07 - 03:00:32 | 5588 |
| Kingman/Dolan Springs | 02:49:34 | -21.3 | Dark | Down | 45.8 | 209.4 | Up | 02:38:22 - 03:00:47 | 5577 |
| Patrick | 02:49:36 | -21.5 | Dark | Down | 45.6 | 209.5 | Up | 02:38:24 - 03:00:49 | 5574 |
| Lake Havasu City | 02:49:30 | -21.0 | Dark | Down | 46.6 | 209.4 | Up | 02:38:17 - 03:00:42 | 5561 |
| Parker | 02:49:28 | -21.0 | Dark | Down | 46.8 | 209.6 | Up | 02:38:16 - 03:00:41 | 5540 |
| Blythe | 02:49:24 | -20.7 | Dark | Down | 47.4 | 209.4 | Up | 02:38:12 - 03:00:37 | 5537 |
| DCO | 02:49:36 | -22.1 | Dark | Down | 45.5 | 210.6 | Up | 02:38:24 - 03:00:49 | 5501 |
| Yuma | 02:49:19 | -20.5 | Dark | Down | 48.3 | 209.9 | Up | 02:38:07 - 03:00:32 | 5492 |
| Niwot | 02:50:17 | -28.6 | Dark | Down | 37.8 | 217.9 | Up | 02:39:05 - 03:01:30 | 5195 |
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 472262, (2019/02/04 02:41UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 33.91 123 68Omi Cet 02:19:20.8 -02:58:44 2.0 7.61 85 PPM 185207 02:56:37.4 -03:42:45 5.2 2.16 93 PPM 185094 02:50:21.5 -04:59:11 7.7 0.41 91 PPM 185057 02:48:41.2 -04:38:44 9.4 0.13 91 472262 02:49:02.1 -04:44:46 16.0 91 Positions are for J2000
Event circumstances last updated at 2018/06/11 22:35:40 UT
Marc W. Buie, Southwest Research Institute