Event between (126154) 01YH140 and star GA1100:03175451 with event index number of 183867
Geocentric closest approach at 2019/03/15 07:39:17 UTC
J2000 position of star is 09:18:30.4 +21:14:37
Equinox of date position of star is 09:19:33.3 +21:09:55
Stellar brightness G=13.6,
use SENSEUP=64
Star is 40 degrees from the moon.
Moon is 60% illuminated.
TNO apparent brightness V=21.3
[RECON map]
TNO is 37.1 AU from the Sun
and 36.3 AU from the Earth.
The TNO is moving 18.6
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 187 seconds.
The 1-sigma cross-track error in the shadow position is
1579 km.
The sky-plane scale is
26352.8 km/arcsec.
The TNO has an absolute magnitude Hv=5.5
Diameter=478.6 km assuming a 5% albedo -- 25.7 sec chord
Diameter=195.4 km assuming a 30% albedo -- 10.5 sec chord
Dynamical classification is 5:3EE
Star training set for 126154, (2019/03/15 07:39UT) Object RA Dec mag sep mel Regulus 10:09:23.6 +11:52:22 1.3 15.11 54 PPM 099404 09:14:42.9 +21:12:11 6.1 1.14 39 PPM 099479 09:19:42.7 +21:28:26 9.3 0.31 40 PPM 099469 09:19:07.1 +21:18:23 11.0 0.18 40 126154 09:19:35.9 +21:09:43 13.6 41 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
4.8 sigma about the mid-time.
The median site spacing is 18.9 km
RECON observability=1.0 and success probability=4.8%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Penticton | 07:38:18 | -42.3 | Dark | Up | 54.1 | 228.2 | Up | 07:23:18 - 07:53:18 | 4720 |
| Oroville | 07:38:16 | -42.9 | Dark | Up | 54.4 | 229.0 | Up | 07:23:16 - 07:53:16 | 4674 |
| Tonasket | 07:38:15 | -43.1 | Dark | Up | 54.6 | 229.3 | Up | 07:23:15 - 07:53:15 | 4655 |
| Okanogan | 07:38:14 | -43.4 | Dark | Up | 54.9 | 229.4 | Up | 07:23:14 - 07:53:14 | 4623 |
| Brewster | 07:38:13 | -43.7 | Dark | Up | 55.1 | 229.4 | Up | 07:23:13 - 07:53:13 | 4595 |
| Manson/Chelan | 07:38:14 | -43.8 | Dark | Up | 55.5 | 229.2 | Up | 07:23:14 - 07:53:14 | 4567 |
| Entiat | 07:38:13 | -44.0 | Dark | Up | 55.6 | 229.3 | Up | 07:23:13 - 07:53:13 | 4547 |
| Wenatchee | 07:38:12 | -44.3 | Dark | Up | 55.9 | 229.4 | Up | 07:23:12 - 07:53:12 | 4522 |
| Ellensburg | 07:38:12 | -44.6 | Dark | Up | 56.2 | 229.6 | Up | 07:23:12 - 07:53:12 | 4481 |
| Pasco | 07:38:05 | -45.6 | Dark | Up | 56.0 | 232.4 | Up | 07:23:05 - 07:53:05 | 4461 |
| PNWRO | 07:38:04 | -45.8 | Dark | Up | 56.0 | 233.0 | Up | 07:23:04 - 07:53:04 | 4447 |
| Yakima | 07:38:12 | -45.0 | Dark | Up | 56.5 | 230.0 | Up | 07:23:12 - 07:53:12 | 4446 |
| Toppenish/White Swan | 07:38:09 | -45.3 | Dark | Up | 56.6 | 230.5 | Up | 07:23:09 - 07:53:09 | 4433 |
| George/Umatilla | 07:38:04 | -45.9 | Dark | Up | 56.3 | 232.5 | Up | 07:23:04 - 07:53:04 | 4426 |
| Niwot | 07:36:59 | -51.6 | Dark | Up | 49.7 | 254.9 | Up | 07:21:59 - 07:51:59 | 4412 |
| Goldendale | 07:38:09 | -45.8 | Dark | Up | 57.1 | 230.6 | Up | 07:23:09 - 07:53:09 | 4373 |
| The Dalles | 07:38:10 | -45.9 | Dark | Up | 57.5 | 230.3 | Up | 07:23:10 - 07:53:10 | 4343 |
| Maupin | 07:38:09 | -46.3 | Dark | Up | 57.7 | 231.0 | Up | 07:23:09 - 07:53:09 | 4310 |
| Madras/Culver | 07:38:06 | -46.9 | Dark | Up | 58.1 | 231.6 | Up | 07:23:06 - 07:53:06 | 4262 |
| Redmond | 07:38:06 | -47.2 | Dark | Up | 58.3 | 232.0 | Up | 07:23:06 - 07:53:06 | 4229 |
| Sisters | 07:38:07 | -47.1 | Dark | Up | 58.5 | 231.4 | Up | 07:23:07 - 07:53:07 | 4219 |
| Bend | 07:38:07 | -47.4 | Dark | Up | 58.5 | 232.0 | Up | 07:23:07 - 07:53:07 | 4206 |
| Oregon Observatory | 07:38:06 | -47.5 | Dark | Up | 58.7 | 232.1 | Up | 07:23:06 - 07:53:06 | 4186 |
| La Pine/Gilchrist | 07:38:06 | -47.7 | Dark | Up | 58.9 | 232.3 | Up | 07:23:06 - 07:53:06 | 4167 |
| North Lake | 07:38:02 | -48.2 | Dark | Up | 58.8 | 233.7 | Up | 07:23:02 - 07:53:02 | 4147 |
| Paisley | 07:37:58 | -48.8 | Dark | Up | 58.9 | 234.9 | Up | 07:22:58 - 07:52:58 | 4110 |
| Lakeview | 07:37:57 | -49.4 | Dark | Up | 59.1 | 235.8 | Up | 07:22:57 - 07:52:57 | 4071 |
| Chiloquin | 07:38:03 | -48.7 | Dark | Up | 59.8 | 233.2 | Up | 07:23:03 - 07:53:03 | 4057 |
| Klamath Falls | 07:38:02 | -49.1 | Dark | Up | 59.9 | 233.8 | Up | 07:23:02 - 07:53:02 | 4029 |
| Cedarville | 07:37:53 | -50.0 | Dark | Up | 59.3 | 237.0 | Up | 07:22:53 - 07:52:53 | 4018 |
| Tulelake | 07:38:00 | -49.4 | Dark | Up | 59.9 | 234.6 | Up | 07:23:00 - 07:53:00 | 4015 |
| Fall River/Burney | 07:37:57 | -50.3 | Dark | Up | 60.4 | 236.0 | Up | 07:22:57 - 07:52:57 | 3935 |
| Susanville | 07:37:53 | -51.0 | Dark | Up | 60.3 | 237.9 | Up | 07:22:53 - 07:52:53 | 3903 |
| Gimple | 07:37:53 | -51.3 | Dark | Up | 60.5 | 238.1 | Up | 07:22:53 - 07:52:53 | 3871 |
| Greenville | 07:37:53 | -51.3 | Dark | Up | 60.6 | 237.9 | Up | 07:22:53 - 07:52:53 | 3868 |
| Portola | 07:37:50 | -51.7 | Dark | Up | 60.5 | 239.1 | Up | 07:22:50 - 07:52:50 | 3854 |
| Reno | 07:37:47 | -52.0 | Dark | Up | 60.2 | 240.3 | Up | 07:22:47 - 07:52:47 | 3851 |
| Quincy | 07:37:51 | -51.4 | Dark | Up | 60.7 | 238.2 | Up | 07:22:51 - 07:52:51 | 3850 |
| Yerington | 07:37:42 | -52.7 | Dark | Up | 60.0 | 242.0 | Up | 07:22:42 - 07:52:42 | 3823 |
| Carson City | 07:37:45 | -52.4 | Dark | Up | 60.3 | 240.9 | Up | 07:22:45 - 07:52:45 | 3820 |
| Tonopah | 07:37:32 | -53.9 | Dark | Up | 59.1 | 245.7 | Up | 07:22:32 - 07:52:32 | 3805 |
| Hawthorne | 07:37:40 | -53.2 | Dark | Up | 59.9 | 243.3 | Up | 07:22:40 - 07:52:40 | 3799 |
| Gardnerville | 07:37:44 | -52.6 | Dark | Up | 60.4 | 241.3 | Up | 07:22:44 - 07:52:44 | 3799 |
| Lee Vining | 07:37:39 | -53.7 | Dark | Up | 60.5 | 243.6 | Up | 07:22:39 - 07:52:39 | 3731 |
| Indian Springs | 07:37:21 | -55.5 | Dark | Up | 58.5 | 249.6 | Up | 07:22:21 - 07:52:21 | 3725 |
| Beatty | 07:37:27 | -55.0 | Dark | Up | 59.2 | 248.0 | Up | 07:22:27 - 07:52:27 | 3716 |
| Henderson | 07:37:17 | -56.1 | Dark | Up | 58.2 | 251.1 | Up | 07:22:17 - 07:52:17 | 3701 |
| Bishop | 07:37:35 | -54.4 | Dark | Up | 60.2 | 245.4 | Up | 07:22:35 - 07:52:35 | 3701 |
| Patrick | 07:37:12 | -56.8 | Dark | Up | 57.5 | 253.2 | Up | 07:22:12 - 07:52:12 | 3684 |
| DCO | 07:37:09 | -57.1 | Dark | Up | 57.1 | 254.3 | Up | 07:22:09 - 07:52:09 | 3683 |
| Kingman/Dolan Springs | 07:37:11 | -57.0 | Dark | Up | 57.8 | 253.3 | Up | 07:22:11 - 07:52:11 | 3657 |
| Searchlight/Boulder City | 07:37:15 | -56.6 | Dark | Up | 58.3 | 252.1 | Up | 07:22:15 - 07:52:15 | 3651 |
| Lone Pine | 07:37:32 | -55.2 | Dark | Up | 60.3 | 247.0 | Up | 07:22:32 - 07:52:32 | 3643 |
| Laughlin/Bullhead City | 07:37:13 | -57.0 | Dark | Up | 58.2 | 252.9 | Up | 07:22:13 - 07:52:13 | 3636 |
| Mohave Valley | 07:37:12 | -57.2 | Dark | Up | 58.2 | 253.3 | Up | 07:22:12 - 07:52:12 | 3611 |
| Lake Havasu City | 07:37:10 | -57.6 | Dark | Up | 58.2 | 254.1 | Up | 07:22:10 - 07:52:10 | 3583 |
| Parker | 07:37:08 | -58.0 | Dark | Up | 58.2 | 254.7 | Up | 07:22:08 - 07:52:08 | 3552 |
| Blythe | 07:37:08 | -58.5 | Dark | Up | 58.6 | 255.3 | Up | 07:22:08 - 07:52:08 | 3492 |
| CPSLO | 07:37:36 | -56.0 | Dark | Up | 62.7 | 246.2 | Up | 07:22:36 - 07:52:36 | 3430 |
| Idyllwild | 07:37:17 | -58.2 | Dark | Up | 60.3 | 253.1 | Up | 07:22:17 - 07:52:17 | 3424 |
| Calipatria | 07:37:10 | -58.9 | Dark | Up | 59.5 | 255.2 | Up | 07:22:10 - 07:52:10 | 3411 |
| Yuma | 07:37:06 | -59.4 | Dark | Up | 58.9 | 256.7 | Up | 07:22:06 - 07:52:06 | 3405 |
| Wildwood | 07:37:25 | -57.5 | Dark | Up | 61.6 | 250.6 | Up | 07:22:25 - 07:52:25 | 3389 |
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 126154, (2019/03/15 07:39UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 15.11 54 PPM 099404 09:13:37.2 +21:17:00 6.1 1.14 39 PPM 099479 09:18:37.1 +21:33:20 9.3 0.31 40 PPM 099469 09:18:01.6 +21:23:16 11.0 0.18 40 126154 09:18:30.4 +21:14:37 13.6 40 Positions are for J2000
Event circumstances last updated at 2018/06/11 17:22:47 UT
Marc W. Buie, Southwest Research Institute