Event between (341275) 07RG283 and star UC4-683-027108 with event index number of 105809
Geocentric closest approach at 2018/03/03 03:04:28 UTC
J2000 position of star is 04:06:44.2 +46:33:08
Equinox of date position of star is 04:08:01.7 +46:35:57
Stellar brightness R=14.3,
use SENSEUP=64
Star is 105 degrees from the moon.
Moon is 98% illuminated.
TNO apparent brightness V=20.9
[RECON map]
TNO is 15.7 AU from the Sun
and 15.7 AU from the Earth.
The TNO is moving 17.3
km/sec on the sky relative to the star, or,
5.4 arcsec/hr.
The 1-sigma error in the time of the event is 276 seconds.
The 1-sigma cross-track error in the shadow position is
5836 km.
The sky-plane scale is
11413.7 km/arcsec.
The TNO has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 6.6 sec chord
Diameter=46.9 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is CENTAURR
Star training set for 341275, (2018/03/03 03:04UT) Object RA Dec mag sep mel Aldebaran 04:36:57.9 +16:32:40 0.8 30.65 107 Mirphak 03:25:37.8 +49:55:28 1.8 7.79 109 48 Per 04:09:59.2 +47:45:34 4.0 1.21 104 PPM 046821 04:09:44.1 +46:24:47 8.5 0.35 104 PPM 046776 04:06:26.8 +46:40:43 9.8 0.29 105 341275 04:08:02.7 +46:36:00 14.3 104 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
3.3 sigma about the mid-time.
The median site spacing is 17.5 km
RECON observability=0.4 and success probability=5.4%
Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
Niwot | 03:06:26 | -26.0 | Dark | Up | 60.1 | 296.1 | Up | 02:51:26 - 03:21:26 | 5272 |
Oroville | 03:05:15 | -14.3 | AT | Up | 72.4 | 272.1 | Up | 02:50:15 - 03:20:15 | 4624 |
Tonasket | 03:05:17 | -14.3 | AT | Up | 72.4 | 272.8 | Up | 02:50:17 - 03:20:17 | 4614 |
Okanogan | 03:05:20 | -14.3 | AT | Up | 72.5 | 273.8 | Up | 02:50:20 - 03:20:20 | 4588 |
Brewster | 03:05:20 | -14.2 | AT | Up | 72.6 | 274.6 | Up | 02:50:20 - 03:20:20 | 4563 |
Manson/Chelan | 03:05:20 | -13.9 | AT | Up | 72.8 | 275.0 | Up | 02:50:20 - 03:20:20 | 4529 |
PNWRO | 03:05:34 | -15.0 | AT | Up | 71.7 | 281.4 | Up | 02:50:34 - 03:20:34 | 4524 |
Pasco | 03:05:31 | -14.8 | AT | Up | 71.9 | 280.6 | Up | 02:50:31 - 03:20:31 | 4521 |
Entiat | 03:05:21 | -13.9 | AT | Up | 72.8 | 275.7 | Up | 02:50:21 - 03:20:21 | 4514 |
Wenatchee | 03:05:23 | -13.9 | AT | Up | 72.9 | 276.5 | Up | 02:50:23 - 03:20:23 | 4495 |
George/Umatilla | 03:05:33 | -14.7 | AT | Up | 71.9 | 281.5 | Up | 02:50:33 - 03:20:33 | 4490 |
Ellensburg | 03:05:25 | -13.8 | AT | Up | 73.0 | 277.7 | Up | 02:50:25 - 03:20:25 | 4461 |
DCO | 03:06:46 | -20.7 | Dark | Up | 63.0 | 305.1 | Up | 02:51:46 - 03:21:46 | 4454 |
Toppenish/White Swan | 03:05:29 | -13.9 | AT | Up | 72.8 | 279.8 | Up | 02:50:29 - 03:20:29 | 4441 |
Yakima | 03:05:27 | -13.8 | AT | Up | 72.9 | 279.0 | Up | 02:50:27 - 03:20:27 | 4440 |
Patrick | 03:06:43 | -20.1 | Dark | Up | 63.6 | 304.9 | Up | 02:51:43 - 03:21:43 | 4411 |
Kingman/Dolan Springs | 03:06:44 | -20.0 | Dark | Up | 63.6 | 305.3 | Up | 02:51:44 - 03:21:44 | 4386 |
Goldendale | 03:05:31 | -13.7 | AT | Up | 72.9 | 281.4 | Up | 02:50:31 - 03:20:31 | 4385 |
Henderson | 03:06:37 | -19.1 | Dark | Up | 64.8 | 304.2 | Up | 02:51:37 - 03:21:37 | 4351 |
The Dalles | 03:05:32 | -13.4 | AT | Up | 73.1 | 282.0 | Up | 02:50:32 - 03:20:32 | 4350 |
Laughlin/Bullhead City | 03:06:44 | -19.6 | Dark | Up | 64.0 | 305.5 | Up | 02:51:44 - 03:21:44 | 4343 |
Maupin | 03:05:35 | -13.5 | AT | Up | 73.0 | 283.4 | Up | 02:50:35 - 03:20:35 | 4336 |
Lake Havasu City | 03:06:47 | -19.8 | Dark | Up | 63.4 | 306.5 | Up | 02:51:47 - 03:21:47 | 4333 |
Mohave Valley | 03:06:45 | -19.6 | Dark | Up | 63.8 | 306.0 | Up | 02:51:45 - 03:21:45 | 4331 |
Searchlight/Boulder City | 03:06:41 | -19.2 | Dark | Up | 64.4 | 305.2 | Up | 02:51:41 - 03:21:41 | 4329 |
Indian Springs | 03:06:33 | -18.5 | Dark | Up | 65.5 | 303.5 | Up | 02:51:33 - 03:21:33 | 4321 |
Parker | 03:06:49 | -19.9 | Dark | Up | 63.2 | 307.1 | Up | 02:51:49 - 03:21:49 | 4319 |
Madras/Culver | 03:05:38 | -13.6 | AT | Up | 72.9 | 285.1 | Up | 02:50:38 - 03:20:38 | 4306 |
Redmond | 03:05:38 | -13.5 | AT | Up | 72.8 | 286.2 | Up | 02:50:38 - 03:20:38 | 4285 |
Tonopah | 03:06:22 | -17.1 | AT | Up | 67.4 | 301.2 | Up | 02:51:22 - 03:21:22 | 4271 |
Blythe | 03:06:52 | -19.7 | Dark | Up | 63.0 | 308.0 | Up | 02:51:52 - 03:21:52 | 4270 |
Bend | 03:05:38 | -13.5 | AT | Up | 72.8 | 286.9 | Up | 02:50:38 - 03:20:38 | 4265 |
Sisters | 03:05:38 | -13.3 | AT | Up | 73.1 | 286.1 | Up | 02:50:38 - 03:20:38 | 4258 |
Paisley | 03:05:38 | -14.1 | AT | Up | 71.9 | 290.9 | Up | 02:50:38 - 03:20:38 | 4255 |
North Lake | 03:05:38 | -13.8 | AT | Up | 72.3 | 289.3 | Up | 02:50:38 - 03:20:38 | 4255 |
Beatty | 03:06:29 | -17.6 | AT | Up | 66.5 | 303.3 | Up | 02:51:29 - 03:21:29 | 4251 |
Lakeview | 03:05:38 | -14.3 | AT | Up | 71.5 | 292.3 | Up | 02:50:38 - 03:20:38 | 4247 |
Oregon Observatory | 03:05:38 | -13.4 | AT | Up | 72.9 | 287.4 | Up | 02:50:38 - 03:20:38 | 4247 |
La Pine/Gilchrist | 03:05:38 | -13.3 | AT | Up | 72.8 | 288.1 | Up | 02:50:38 - 03:20:38 | 4233 |
Cedarville | 03:05:38 | -14.5 | AT | Up | 71.2 | 294.0 | Up | 02:50:38 - 03:20:38 | 4232 |
Yuma | 03:06:57 | -19.8 | Dark | Up | 62.5 | 309.4 | Up | 02:51:57 - 03:21:57 | 4223 |
Hawthorne | 03:06:17 | -16.0 | AT | Up | 68.6 | 300.8 | Up | 02:51:17 - 03:21:17 | 4185 |
Reno | 03:05:38 | -14.8 | AT | Up | 70.0 | 299.0 | Up | 02:50:38 - 03:20:38 | 4181 |
Calipatria | 03:06:53 | -19.0 | Dark | Up | 63.3 | 309.2 | Up | 02:51:53 - 03:21:53 | 4170 |
Carson City | 03:05:38 | -14.9 | AT | Up | 69.8 | 299.8 | Up | 02:50:38 - 03:20:38 | 4169 |
Yerington | 03:06:13 | -15.5 | AT | Up | 69.2 | 300.0 | Up | 02:51:13 - 03:21:13 | 4168 |
Chiloquin | 03:05:38 | -13.1 | AT | Up | 72.7 | 291.5 | Up | 02:50:38 - 03:20:38 | 4154 |
Tulelake | 03:05:38 | -13.5 | AT | Up | 72.2 | 293.2 | Up | 02:50:38 - 03:20:38 | 4153 |
Susanville | 03:05:38 | -14.2 | AT | Up | 71.0 | 297.1 | Up | 02:50:38 - 03:20:38 | 4150 |
Bishop | 03:06:24 | -16.2 | AT | Up | 67.8 | 303.1 | Up | 02:51:24 - 03:21:24 | 4146 |
Klamath Falls | 03:05:38 | -13.2 | AT | Up | 72.5 | 292.5 | Up | 02:50:38 - 03:20:38 | 4144 |
Portola | 03:05:38 | -14.3 | AT | Up | 70.6 | 298.6 | Up | 02:50:38 - 03:20:38 | 4140 |
Lone Pine | 03:06:29 | -16.6 | AT | Up | 67.2 | 304.5 | Up | 02:51:29 - 03:21:29 | 4135 |
Gimple | 03:05:38 | -14.0 | AT | Up | 71.0 | 297.9 | Up | 02:50:38 - 03:20:38 | 4122 |
Gardnerville | 03:06:13 | -15.0 | AT | Up | 69.6 | 300.3 | Up | 02:51:13 - 03:21:13 | 4121 |
Lee Vining | 03:06:19 | -15.6 | AT | Up | 68.6 | 302.2 | Up | 02:51:19 - 03:21:19 | 4120 |
Fall River/Burney | 03:05:38 | -13.6 | AT | Up | 71.8 | 295.7 | Up | 02:50:38 - 03:20:38 | 4119 |
Greenville | 03:05:38 | -13.9 | AT | Up | 71.1 | 297.9 | Up | 02:50:38 - 03:20:38 | 4116 |
Quincy | 03:05:38 | -14.0 | AT | Up | 71.0 | 298.5 | Up | 02:50:38 - 03:20:38 | 4108 |
Idyllwild | 03:06:47 | -17.9 | AT | Up | 64.5 | 308.9 | Up | 02:51:47 - 03:21:47 | 4102 |
Wildwood | 03:06:42 | -16.3 | AT | Up | 66.0 | 309.4 | Up | 02:51:42 - 03:21:42 | 3967 |
CPSLO | 03:06:31 | -14.5 | AT | Up | 68.1 | 308.5 | Up | 02:51:31 - 03:21:31 | 3864 |
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 341275, (2018/03/03 03:04UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 30.65 107 Mirphak 03:24:19.4 +49:51:40 1.8 7.79 109 48 Per 04:08:39.7 +47:42:45 4.0 1.21 104 PPM 046821 04:08:25.7 +46:21:58 8.5 0.35 104 PPM 046776 04:05:08.4 +46:37:49 9.8 0.29 105 341275 04:06:44.2 +46:33:08 14.3 105 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:19:10 UT
Marc W. Buie, Southwest Research Institute