Event between 11MM4 and star GA1620:01579309 with event index number of 165006
Geocentric closest approach at 2018/11/14 04:07:01 UTC
J2000 position of star is 12:49:56.2 +73:05:52
Equinox of date position of star is 12:50:36.1 +72:59:44
Stellar brightness G=16.6,
use SENSEUP=128
Star is 116 degrees from the moon.
Moon is 37% illuminated.
TNO apparent brightness V=22.6
[RECON map]
TNO is 19.1 AU from the Sun
and 19.0 AU from the Earth.
The TNO is moving 23.1
km/sec on the sky relative to the star, or,
6.0 arcsec/hr.
The 1-sigma error in the time of the event is 148 seconds.
The 1-sigma cross-track error in the shadow position is
3791 km.
The sky-plane scale is
13754.9 km/arcsec.
The TNO has an absolute magnitude Hv=9.5
Diameter=77.3 km assuming a 5% albedo -- 3.4 sec chord
Diameter=31.5 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
Star training set for 11MM4, (2018/11/14 04:07UT) Object RA Dec mag sep mel Vega 18:37:34.7 +38:48:08 0.0 52.25 64 Kochab 14:50:40.2 +74:04:42 2.1 8.48 107 PPM 008333 13:05:24.6 +72:55:28 6.5 1.09 115 PPM 008212 12:40:10.5 +72:53:52 8.2 0.77 117 PPM 008281 12:54:13.9 +72:56:41 10.0 0.27 116 PPM 008257 12:48:22.8 +72:58:30 10.5 0.16 116 11MM4 12:50:36.2 +72:59:43 16.6 116 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 2.5 km
RECON observability=0.8 and success probability=7.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Niwot | 04:10:15 | -50.2 | Dark | Up | 23.2 | 359.4 | Low | 03:57:27 - 04:23:03 | 3943 |
| DCO | 04:10:39 | -45.5 | Dark | Up | 18.4 | 357.0 | Really Low | 03:57:51 - 04:23:27 | 3479 |
| Patrick | 04:10:40 | -44.9 | Dark | Up | 18.7 | 356.8 | Really Low | 03:57:52 - 04:23:28 | 3420 |
| Kingman/Dolan Springs | 04:10:41 | -44.8 | Dark | Up | 18.5 | 356.8 | Really Low | 03:57:53 - 04:23:29 | 3408 |
| Parker | 04:10:43 | -44.8 | Dark | Up | 17.5 | 356.7 | Really Low | 03:57:55 - 04:23:31 | 3404 |
| Lake Havasu City | 04:10:42 | -44.7 | Dark | Up | 17.9 | 356.7 | Really Low | 03:57:54 - 04:23:30 | 3397 |
| Yuma | 04:10:45 | -44.7 | Dark | Up | 16.1 | 356.6 | Really Low | 03:57:57 - 04:23:33 | 3393 |
| Blythe | 04:10:44 | -44.6 | Dark | Up | 17.0 | 356.6 | Really Low | 03:57:56 - 04:23:32 | 3386 |
| Mohave Valley | 04:10:42 | -44.4 | Dark | Up | 18.3 | 356.6 | Really Low | 03:57:54 - 04:23:30 | 3372 |
| Laughlin/Bullhead City | 04:10:42 | -44.4 | Dark | Up | 18.5 | 356.6 | Really Low | 03:57:54 - 04:23:30 | 3368 |
| Searchlight/Boulder City | 04:10:42 | -44.1 | Dark | Up | 18.9 | 356.5 | Really Low | 03:57:54 - 04:23:30 | 3337 |
| Henderson | 04:10:42 | -43.9 | Dark | Up | 19.4 | 356.5 | Really Low | 03:57:54 - 04:23:30 | 3325 |
| Calipatria | 04:10:46 | -43.9 | Dark | Up | 16.5 | 356.4 | Really Low | 03:57:58 - 04:23:34 | 3317 |
| Indian Springs | 04:10:42 | -43.3 | Dark | Up | 20.0 | 356.2 | Really Low | 03:57:54 - 04:23:30 | 3264 |
| Idyllwild | 04:10:48 | -42.9 | Dark | Up | 17.2 | 356.0 | Really Low | 03:58:00 - 04:23:36 | 3215 |
| Beatty | 04:10:44 | -42.4 | Dark | Up | 20.4 | 355.9 | Low | 03:57:56 - 04:23:32 | 3176 |
| Tonopah | 04:10:43 | -41.8 | Dark | Up | 21.6 | 355.7 | Low | 03:57:55 - 04:23:31 | 3126 |
| Lone Pine | 04:10:47 | -41.4 | Dark | Up | 20.2 | 355.5 | Low | 03:57:59 - 04:23:35 | 3078 |
| Wildwood | 04:10:51 | -41.3 | Dark | Up | 17.7 | 355.4 | Really Low | 03:58:03 - 04:23:39 | 3059 |
| Bishop | 04:10:46 | -41.0 | Dark | Up | 20.9 | 355.4 | Low | 03:57:58 - 04:23:34 | 3043 |
| Hawthorne | 04:10:44 | -40.7 | Dark | Up | 22.1 | 355.3 | Low | 03:57:56 - 04:23:32 | 3011 |
| Lee Vining | 04:10:46 | -40.4 | Dark | Up | 21.6 | 355.1 | Low | 03:57:58 - 04:23:34 | 2980 |
| Yerington | 04:10:45 | -40.2 | Dark | Up | 22.6 | 355.1 | Low | 03:57:57 - 04:23:33 | 2965 |
| Gardnerville | 04:10:46 | -39.7 | Dark | Up | 22.6 | 354.9 | Low | 03:57:58 - 04:23:34 | 2920 |
| Carson City | 04:10:45 | -39.7 | Dark | Up | 22.9 | 354.9 | Low | 03:57:57 - 04:23:33 | 2913 |
| Reno | 04:10:45 | -39.6 | Dark | Up | 23.2 | 354.9 | Low | 03:57:57 - 04:23:33 | 2908 |
| CPSLO | 04:10:53 | -39.5 | Dark | Up | 19.0 | 354.8 | Really Low | 03:58:05 - 04:23:41 | 2881 |
| PNWRO | 04:10:30 | -38.9 | Dark | Up | 29.6 | 354.9 | Low | 03:57:42 - 04:23:18 | 2879 |
| Pasco | 04:10:30 | -38.7 | Dark | Up | 29.8 | 354.8 | Low | 03:57:42 - 04:23:18 | 2858 |
| Cedarville | 04:10:41 | -39.0 | Dark | Up | 25.2 | 354.7 | Low | 03:57:53 - 04:23:29 | 2856 |
| Portola | 04:10:45 | -39.1 | Dark | Up | 23.5 | 354.7 | Low | 03:57:57 - 04:23:33 | 2854 |
| George/Umatilla | 04:10:31 | -38.6 | Dark | Up | 29.5 | 354.7 | Low | 03:57:43 - 04:23:19 | 2849 |
| Lakeview | 04:10:40 | -38.7 | Dark | Up | 25.9 | 354.6 | Low | 03:57:52 - 04:23:28 | 2834 |
| Susanville | 04:10:44 | -38.8 | Dark | Up | 24.1 | 354.6 | Low | 03:57:56 - 04:23:32 | 2833 |
| Gimple | 04:10:46 | -38.7 | Dark | Up | 23.9 | 354.5 | Low | 03:57:58 - 04:23:34 | 2820 |
| Quincy | 04:10:45 | -38.7 | Dark | Up | 23.7 | 354.5 | Low | 03:57:57 - 04:23:33 | 2816 |
| Greenville | 04:10:45 | -38.6 | Dark | Up | 23.9 | 354.5 | Low | 03:57:57 - 04:23:33 | 2814 |
| Paisley | 04:10:39 | -38.5 | Dark | Up | 26.4 | 354.5 | Low | 03:57:51 - 04:23:27 | 2813 |
| Tonasket | 04:10:24 | -37.8 | Dark | Up | 32.3 | 354.5 | Up | 03:57:36 - 04:23:12 | 2791 |
| Anarchist Mountain Observatory | 04:10:24 | -37.7 | Dark | Up | 32.6 | 354.5 | Up | 03:57:36 - 04:23:12 | 2790 |
| Okanogan | 04:10:25 | -37.8 | Dark | Up | 32.0 | 354.5 | Up | 03:57:37 - 04:23:13 | 2788 |
| Oroville | 04:10:24 | -37.7 | Dark | Up | 32.5 | 354.5 | Up | 03:57:36 - 04:23:12 | 2786 |
| Brewster | 04:10:27 | -37.7 | Dark | Up | 31.7 | 354.4 | Up | 03:57:39 - 04:23:15 | 2779 |
| North Lake | 04:10:39 | -38.1 | Dark | Up | 27.0 | 354.4 | Low | 03:57:51 - 04:23:27 | 2779 |
| Oliver | 04:10:23 | -37.6 | Dark | Up | 32.8 | 354.5 | Up | 03:57:35 - 04:23:11 | 2774 |
| Kelowna | 04:10:21 | -37.5 | Dark | Up | 33.5 | 354.5 | Up | 03:57:33 - 04:23:09 | 2770 |
| Fall River/Burney | 04:10:44 | -38.2 | Dark | Up | 24.8 | 354.3 | Low | 03:57:56 - 04:23:32 | 2769 |
| Okanagan Falls | 04:10:23 | -37.5 | Dark | Up | 33.0 | 354.4 | Up | 03:57:35 - 04:23:11 | 2769 |
| Toppenish/White Swan | 04:10:31 | -37.8 | Dark | Up | 30.1 | 354.4 | Up | 03:57:43 - 04:23:19 | 2768 |
| Penticton | 04:10:23 | -37.5 | Dark | Up | 33.1 | 354.4 | Up | 03:57:35 - 04:23:11 | 2767 |
| Manson/Chelan | 04:10:28 | -37.5 | Dark | Up | 31.5 | 354.3 | Up | 03:57:40 - 04:23:16 | 2759 |
| Entiat | 04:10:28 | -37.6 | Dark | Up | 31.3 | 354.3 | Up | 03:57:40 - 04:23:16 | 2758 |
| Wenatchee | 04:10:29 | -37.6 | Dark | Up | 31.1 | 354.3 | Up | 03:57:41 - 04:23:17 | 2756 |
| Yakima | 04:10:31 | -37.6 | Dark | Up | 30.3 | 354.3 | Up | 03:57:43 - 04:23:19 | 2753 |
| Tulelake | 04:10:42 | -38.0 | Dark | Up | 25.7 | 354.3 | Low | 03:57:54 - 04:23:30 | 2753 |
| Summerland | 04:10:22 | -37.2 | Dark | Up | 33.5 | 354.3 | Up | 03:57:34 - 04:23:10 | 2748 |
| Goldendale | 04:10:34 | -37.6 | Dark | Up | 29.5 | 354.3 | Low | 03:57:46 - 04:23:22 | 2748 |
| Ellensburg | 04:10:30 | -37.5 | Dark | Up | 30.7 | 354.3 | Up | 03:57:42 - 04:23:18 | 2748 |
| Redmond | 04:10:37 | -37.7 | Dark | Up | 28.0 | 354.2 | Low | 03:57:49 - 04:23:25 | 2746 |
| Madras/Culver | 04:10:37 | -37.7 | Dark | Up | 28.4 | 354.2 | Low | 03:57:49 - 04:23:25 | 2744 |
| Maupin | 04:10:34 | -37.6 | Dark | Up | 28.9 | 354.2 | Low | 03:57:46 - 04:23:22 | 2739 |
| Bend | 04:10:38 | -37.7 | Dark | Up | 27.8 | 354.2 | Low | 03:57:50 - 04:23:26 | 2738 |
| Oregon Observatory | 04:10:39 | -37.6 | Dark | Up | 27.6 | 354.2 | Low | 03:57:51 - 04:23:27 | 2731 |
| La Pine/Gilchrist | 04:10:39 | -37.6 | Dark | Up | 27.4 | 354.2 | Low | 03:57:51 - 04:23:27 | 2729 |
| Klamath Falls | 04:10:42 | -37.7 | Dark | Up | 26.0 | 354.1 | Low | 03:57:54 - 04:23:30 | 2727 |
| The Dalles | 04:10:34 | -37.4 | Dark | Up | 29.3 | 354.1 | Low | 03:57:46 - 04:23:22 | 2725 |
| Chiloquin | 04:10:41 | -37.6 | Dark | Up | 26.4 | 354.1 | Low | 03:57:53 - 04:23:29 | 2717 |
| Sisters | 04:10:38 | -37.4 | Dark | Up | 28.1 | 354.1 | Low | 03:57:50 - 04:23:26 | 2716 |
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 11MM4, (2018/11/14 04:07UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 52.25 64 Kochab 14:50:42.2 +74:09:20 2.1 8.48 107 PPM 008333 13:04:49.6 +73:01:31 6.5 1.09 115 PPM 008212 12:39:26.7 +73:00:05 8.2 0.77 117 PPM 008281 12:53:35.1 +73:02:49 10.0 0.27 116 PPM 008257 12:47:42.0 +73:04:40 10.5 0.16 116 11MM4 12:49:56.2 +73:05:52 16.6 116 Positions are for J2000
Event circumstances last updated at 2018/10/22 18:20:29 UT
Marc W. Buie, Southwest Research Institute