Event between 02VT130 and star UC4-571-014939 with event index number of 151439
Geocentric closest approach at 2018/04/03 03:51:07 UTC
J2000 position of star is 05:08:44.4 +24:02:01
Equinox of date position of star is 05:09:49.9 +24:03:19
Stellar brightness R=16.3,
use SENSEUP=128
Star is 147 degrees from the moon.
Moon is 92% illuminated.
TNO apparent brightness V=22.3
[RECON map]
TNO is 43.1 AU from the Sun
and 43.5 AU from the Earth.
The TNO is moving 16.5
km/sec on the sky relative to the star, or,
1.9 arcsec/hr.
The 1-sigma error in the time of the event is 247 seconds.
The 1-sigma cross-track error in the shadow position is
2307 km.
The sky-plane scale is
31553.7 km/arcsec.
The TNO has an absolute magnitude Hv=5.8
Diameter=416.9 km assuming a 5% albedo -- 25.2 sec chord
Diameter=170.2 km assuming a 30% albedo -- 10.3 sec chord
Dynamical classification is CLASSICAL
Star training set for 02VT130, (2018/04/03 03:51UT) Object RA Dec mag sep mel Aldebaran 04:36:58.2 +16:32:40 0.8 10.76 156 Alnath 05:27:26.8 +28:37:16 1.6 6.03 142 103 Tau 05:09:13.5 +24:17:15 5.3 0.27 147 PPM 094048 05:06:18.6 +23:49:22 8.3 0.84 148 103 Tau 05:09:13.5 +24:17:15 5.3 0.27 147 PPM 094108 05:10:15.8 +23:56:43 11.0 0.14 147 02VT130 05:09:51.2 +24:03:21 16.3 147 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
3.6 sigma about the mid-time.
The median site spacing is 19.0 km
RECON observability=0.7 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) |
Oroville | 03:54:42 | -14.0 | AT | Down | 41.6 | 259.0 | Up | 03:39:42 - 04:09:42 | -4052 |
Tonasket | 03:54:43 | -14.1 | AT | Down | 41.6 | 259.3 | Up | 03:39:43 - 04:09:43 | -4073 |
Okanogan | 03:54:44 | -14.2 | AT | Down | 41.8 | 259.4 | Up | 03:39:44 - 04:09:44 | -4107 |
Brewster | 03:54:44 | -14.2 | AT | Down | 42.0 | 259.5 | Up | 03:39:44 - 04:09:44 | -4136 |
Manson/Chelan | 03:54:44 | -14.0 | AT | Down | 42.3 | 259.4 | Up | 03:39:44 - 04:09:44 | -4163 |
Entiat | 03:54:45 | -14.1 | AT | Down | 42.4 | 259.5 | Up | 03:39:45 - 04:09:45 | -4185 |
Wenatchee | 03:54:46 | -14.1 | AT | Down | 42.5 | 259.6 | Up | 03:39:46 - 04:09:46 | -4211 |
Ellensburg | 03:54:47 | -14.1 | AT | Down | 42.7 | 259.8 | Up | 03:39:47 - 04:09:47 | -4254 |
Pasco | 03:54:54 | -15.4 | AT | Down | 41.8 | 261.7 | Up | 03:39:54 - 04:09:54 | -4290 |
Yakima | 03:54:47 | -14.3 | AT | Down | 42.8 | 260.2 | Up | 03:39:47 - 04:09:47 | -4292 |
PNWRO | 03:54:55 | -15.6 | AT | Down | 41.7 | 262.1 | Up | 03:39:55 - 04:09:55 | -4308 |
Toppenish/White Swan | 03:54:49 | -14.5 | AT | Down | 42.7 | 260.5 | Up | 03:39:49 - 04:09:49 | -4308 |
George/Umatilla | 03:54:54 | -15.4 | AT | Down | 42.0 | 261.8 | Up | 03:39:54 - 04:09:54 | -4326 |
Goldendale | 03:54:50 | -14.5 | AT | Down | 43.1 | 260.7 | Up | 03:39:50 - 04:09:50 | -4369 |
The Dalles | 03:54:49 | -14.3 | AT | Down | 43.3 | 260.6 | Up | 03:39:49 - 04:09:49 | -4399 |
Maupin | 03:54:52 | -14.6 | AT | Down | 43.3 | 261.1 | Up | 03:39:52 - 04:09:52 | -4436 |
Niwot | 03:55:52 | -27.4 | Dark | Up | 31.6 | 276.2 | Up | 03:40:52 - 04:10:52 | -4480 |
Madras/Culver | 03:54:53 | -14.7 | AT | Down | 43.4 | 261.6 | Up | 03:39:53 - 04:09:53 | -4488 |
Redmond | 03:54:54 | -14.9 | AT | Down | 43.5 | 261.9 | Up | 03:39:54 - 04:09:54 | -4524 |
Sisters | 03:54:53 | -14.6 | AT | Down | 43.8 | 261.5 | Up | 03:39:53 - 04:09:53 | -4530 |
Bend | 03:54:54 | -14.8 | AT | Down | 43.7 | 262.0 | Up | 03:39:54 - 04:09:54 | -4547 |
Oregon Observatory | 03:54:54 | -14.8 | AT | Down | 43.8 | 262.0 | Up | 03:39:54 - 04:09:54 | -4567 |
La Pine/Gilchrist | 03:54:55 | -14.9 | AT | Down | 43.8 | 262.2 | Up | 03:39:55 - 04:09:55 | -4588 |
North Lake | 03:54:58 | -15.5 | AT | Down | 43.5 | 263.1 | Up | 03:39:58 - 04:09:58 | -4615 |
Paisley | 03:55:02 | -15.9 | AT | Down | 43.2 | 263.9 | Up | 03:40:02 - 04:10:02 | -4660 |
Chiloquin | 03:54:58 | -15.1 | AT | Down | 44.2 | 263.0 | Up | 03:39:58 - 04:09:58 | -4703 |
Lakeview | 03:55:04 | -16.3 | AT | Down | 43.1 | 264.5 | Up | 03:40:04 - 04:10:04 | -4704 |
Klamath Falls | 03:54:59 | -15.2 | AT | Down | 44.2 | 263.4 | Up | 03:39:59 - 04:09:59 | -4734 |
Tulelake | 03:55:01 | -15.6 | AT | Down | 44.0 | 263.9 | Up | 03:40:01 - 04:10:01 | -4753 |
Cedarville | 03:55:07 | -16.6 | AT | Down | 43.1 | 265.2 | Up | 03:40:07 - 04:10:07 | -4763 |
Fall River/Burney | 03:55:05 | -16.0 | AT | Down | 44.0 | 264.8 | Up | 03:40:05 - 04:10:05 | -4840 |
Susanville | 03:55:09 | -16.7 | AT | Down | 43.5 | 265.9 | Up | 03:40:09 - 04:10:09 | -4883 |
Gimple | 03:55:09 | -16.7 | AT | Down | 43.7 | 266.1 | Up | 03:40:09 - 04:10:09 | -4916 |
Greenville | 03:55:10 | -16.6 | AT | Down | 43.7 | 266.0 | Up | 03:40:10 - 04:10:10 | -4918 |
Quincy | 03:55:10 | -16.7 | AT | Down | 43.8 | 266.2 | Up | 03:40:10 - 04:10:10 | -4937 |
Portola | 03:55:12 | -17.1 | AT | Down | 43.4 | 266.7 | Up | 03:40:12 - 04:10:12 | -4938 |
Reno | 03:55:15 | -17.7 | AT | Down | 42.9 | 267.3 | Up | 03:40:15 - 04:10:15 | -4947 |
Carson City | 03:55:16 | -17.8 | AT | Down | 42.9 | 267.7 | Up | 03:40:16 - 04:10:16 | -4982 |
Yerington | 03:55:19 | -18.4 | Dark | Down | 42.4 | 268.3 | Up | 03:40:19 - 04:10:19 | -4985 |
Gardnerville | 03:55:17 | -18.0 | AT | Down | 42.9 | 268.0 | Up | 03:40:17 - 04:10:17 | -5005 |
Hawthorne | 03:55:22 | -19.0 | Dark | Down | 42.0 | 269.1 | Up | 03:40:22 - 04:10:22 | -5016 |
Tonopah | 03:55:27 | -20.2 | Dark | Down | 40.9 | 270.4 | Up | 03:40:27 - 04:10:27 | -5024 |
Lee Vining | 03:55:22 | -18.8 | Dark | Down | 42.4 | 269.3 | Up | 03:40:22 - 04:10:22 | -5085 |
Bishop | 03:55:26 | -19.6 | Dark | Down | 41.8 | 270.3 | Up | 03:40:26 - 04:10:26 | -5125 |
Beatty | 03:55:32 | -21.0 | Dark | Down | 40.5 | 271.7 | Up | 03:40:32 - 04:10:32 | -5126 |
Indian Springs | 03:55:37 | -21.9 | Dark | Down | 39.6 | 272.6 | Up | 03:40:37 - 04:10:37 | -5127 |
Henderson | 03:55:40 | -22.7 | Dark | Down | 39.0 | 273.4 | Up | 03:40:40 - 04:10:40 | -5160 |
Patrick | 03:55:46 | -23.8 | Dark | Down | 38.0 | 274.5 | Up | 03:40:46 - 04:10:46 | -5189 |
Lone Pine | 03:55:29 | -20.2 | Dark | Down | 41.5 | 271.2 | Up | 03:40:29 - 04:10:29 | -5191 |
DCO | 03:55:49 | -24.5 | Dark | Down | 37.4 | 275.1 | Up | 03:40:49 - 04:10:49 | -5198 |
Searchlight/Boulder City | 03:55:43 | -23.0 | Dark | Down | 38.9 | 273.9 | Up | 03:40:43 - 04:10:43 | -5215 |
Kingman/Dolan Springs | 03:55:46 | -23.8 | Dark | Down | 38.1 | 274.6 | Up | 03:40:46 - 04:10:46 | -5217 |
Laughlin/Bullhead City | 03:55:45 | -23.4 | Dark | Down | 38.6 | 274.3 | Up | 03:40:45 - 04:10:45 | -5234 |
Mohave Valley | 03:55:45 | -23.5 | Dark | Down | 38.5 | 274.5 | Up | 03:40:45 - 04:10:45 | -5261 |
Lake Havasu City | 03:55:48 | -23.9 | Dark | Down | 38.3 | 275.0 | Up | 03:40:48 - 04:10:48 | -5293 |
Parker | 03:55:49 | -24.0 | Dark | Down | 38.2 | 275.3 | Up | 03:40:49 - 04:10:49 | -5328 |
Blythe | 03:55:50 | -24.0 | Dark | Down | 38.4 | 275.6 | Up | 03:40:50 - 04:10:50 | -5389 |
CPSLO | 03:55:25 | -18.7 | Dark | Down | 43.6 | 270.8 | Up | 03:40:25 - 04:10:25 | -5391 |
Idyllwild | 03:55:43 | -22.3 | Dark | Down | 40.2 | 274.4 | Up | 03:40:43 - 04:10:43 | -5440 |
Wildwood | 03:55:35 | -20.7 | Dark | Down | 41.8 | 273.1 | Up | 03:40:35 - 04:10:35 | -5457 |
Calipatria | 03:55:48 | -23.5 | Dark | Down | 39.2 | 275.5 | Up | 03:40:48 - 04:10:48 | -5466 |
Yuma | 03:55:52 | -24.4 | Dark | Down | 38.4 | 276.3 | Up | 03:40:52 - 04:10:52 | -5482 |
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 02VT130, (2018/04/03 03:51UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 10.76 156 Alnath 05:26:17.5 +28:36:24 1.6 6.03 142 103 Tau 05:08:06.6 +24:15:54 5.3 0.27 147 PPM 094048 05:05:12.0 +23:47:56 8.3 0.84 148 103 Tau 05:08:06.6 +24:15:54 5.3 0.27 147 PPM 094108 05:09:09.1 +23:55:24 11.0 0.14 147 02VT130 05:08:44.4 +24:02:01 16.3 147 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:24:54 UT
Marc W. Buie, Southwest Research Institute