Event between 04TT357 and star GA1080:00680692 with event index number of 215027
Geocentric closest approach at 2019/01/09 10:03:04 UTC
J2000 position of star is 04:47:18.9 +18:35:59
Equinox of date position of star is 04:48:25.2 +18:37:56
Stellar brightness G=14.8,
use SENSEUP=128
Star is 107 degrees from the moon.
Moon is 10% illuminated.
TNO apparent brightness V=22.8
[RECON map]
TNO is 32.8 AU from the Sun
and 32.0 AU from the Earth.
The TNO is moving 18.6
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 230 seconds.
The 1-sigma cross-track error in the shadow position is
1268 km.
The sky-plane scale is
23205.5 km/arcsec.
The TNO has an absolute magnitude Hv=7.6
Diameter=182.0 km assuming a 5% albedo -- 9.8 sec chord
Diameter=74.3 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is 5:2EEE
Star training set for 04TT357, (2019/01/09 10:03UT) Object RA Dec mag sep mel Aldebaran 04:37:00.9 +16:32:46 0.8 3.43 104 Alnath 05:27:29.8 +28:37:18 1.6 13.40 117 97 Tau 04:52:29.4 +18:52:14 5.1 0.99 108 PPM 120231 04:47:23.6 +18:46:03 7.1 0.28 107 PPM 120251 04:48:13.7 +18:31:13 8.7 0.12 107 PPM 120256 04:48:37.9 +18:31:48 10.4 0.11 107 04TT357 04:48:25.5 +18:37:57 14.8 108 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
3.9 sigma about the mid-time.
The median site spacing is 20.4 km
RECON observability=1.0 and success probability=6.3%
Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
Kelowna | 09:59:16 | -54.2 | Dark | Down | 28.7 | 265.1 | Low | 09:44:16 - 10:14:16 | 4121 |
Summerland | 09:59:17 | -54.4 | Dark | Down | 28.9 | 264.8 | Low | 09:44:17 - 10:14:17 | 4110 |
Penticton | 09:59:16 | -54.6 | Dark | Down | 28.8 | 265.2 | Low | 09:44:16 - 10:14:16 | 4086 |
Okanagan Falls | 09:59:15 | -54.7 | Dark | Down | 28.9 | 265.3 | Low | 09:44:15 - 10:14:15 | 4069 |
Oliver | 09:59:14 | -54.8 | Dark | Down | 28.9 | 265.4 | Low | 09:44:14 - 10:14:14 | 4055 |
Anarchist Mountain Observatory | 09:59:13 | -54.8 | Dark | Down | 28.7 | 265.6 | Low | 09:44:13 - 10:14:13 | 4043 |
Oroville | 09:59:13 | -54.9 | Dark | Down | 28.8 | 265.6 | Low | 09:44:13 - 10:14:13 | 4036 |
Tonasket | 09:59:12 | -55.0 | Dark | Down | 28.8 | 265.7 | Low | 09:44:12 - 10:14:12 | 4015 |
Okanogan | 09:59:11 | -55.3 | Dark | Down | 28.9 | 265.8 | Low | 09:44:11 - 10:14:11 | 3983 |
Brewster | 09:59:11 | -55.6 | Dark | Down | 29.1 | 265.8 | Low | 09:44:11 - 10:14:11 | 3955 |
Manson/Chelan | 09:59:10 | -55.9 | Dark | Down | 29.4 | 265.6 | Low | 09:44:10 - 10:14:10 | 3929 |
Entiat | 09:59:10 | -56.1 | Dark | Down | 29.4 | 265.7 | Low | 09:44:10 - 10:14:10 | 3909 |
Wenatchee | 09:59:09 | -56.3 | Dark | Down | 29.5 | 265.7 | Low | 09:44:09 - 10:14:09 | 3884 |
Ellensburg | 09:59:08 | -56.7 | Dark | Down | 29.7 | 265.8 | Low | 09:44:08 - 10:14:08 | 3843 |
Yakima | 09:59:07 | -57.0 | Dark | Down | 29.7 | 266.0 | Low | 09:44:07 - 10:14:07 | 3805 |
Pasco | 09:59:03 | -56.4 | Dark | Down | 28.8 | 267.3 | Low | 09:44:03 - 10:14:03 | 3802 |
Toppenish/White Swan | 09:59:06 | -57.0 | Dark | Down | 29.7 | 266.3 | Low | 09:44:06 - 10:14:06 | 3789 |
PNWRO | 09:59:01 | -56.4 | Dark | Down | 28.6 | 267.6 | Low | 09:44:01 - 10:14:01 | 3784 |
George/Umatilla | 09:59:03 | -56.7 | Dark | Down | 29.0 | 267.3 | Low | 09:44:03 - 10:14:03 | 3768 |
Goldendale | 09:59:04 | -57.6 | Dark | Down | 30.0 | 266.3 | Low | 09:44:04 - 10:14:04 | 3731 |
The Dalles | 09:59:04 | -57.9 | Dark | Down | 30.3 | 266.1 | Up | 09:44:04 - 10:14:04 | 3703 |
Maupin | 09:59:03 | -58.1 | Dark | Down | 30.2 | 266.4 | Up | 09:44:03 - 10:14:03 | 3667 |
Madras/Culver | 09:59:01 | -58.5 | Dark | Down | 30.3 | 266.7 | Up | 09:44:01 - 10:14:01 | 3615 |
Redmond | 09:59:00 | -58.7 | Dark | Down | 30.3 | 266.9 | Up | 09:44:00 - 10:14:00 | 3581 |
Sisters | 09:59:01 | -58.9 | Dark | Down | 30.6 | 266.6 | Up | 09:44:01 - 10:14:01 | 3575 |
Bend | 09:59:00 | -58.9 | Dark | Down | 30.5 | 266.9 | Up | 09:44:00 - 10:14:00 | 3558 |
Niwot | 09:58:23 | -49.8 | Dark | Down | 18.4 | 279.2 | Really Low | 09:43:23 - 10:13:23 | 3554 |
Oregon Observatory | 09:59:00 | -59.1 | Dark | Down | 30.6 | 266.9 | Up | 09:44:00 - 10:14:00 | 3539 |
La Pine/Gilchrist | 09:58:59 | -59.3 | Dark | Down | 30.6 | 267.0 | Up | 09:43:59 - 10:13:59 | 3519 |
North Lake | 09:58:56 | -59.2 | Dark | Down | 30.2 | 267.7 | Up | 09:43:56 - 10:13:56 | 3490 |
Paisley | 09:58:54 | -59.3 | Dark | Down | 30.0 | 268.2 | Low | 09:43:54 - 10:13:54 | 3445 |
Chiloquin | 09:58:56 | -60.1 | Dark | Down | 30.9 | 267.4 | Up | 09:43:56 - 10:13:56 | 3407 |
Lakeview | 09:58:52 | -59.4 | Dark | Down | 29.8 | 268.6 | Low | 09:43:52 - 10:13:52 | 3401 |
Klamath Falls | 09:58:55 | -60.3 | Dark | Down | 30.9 | 267.6 | Up | 09:43:55 - 10:13:55 | 3376 |
Tulelake | 09:58:54 | -60.3 | Dark | Down | 30.7 | 268.0 | Up | 09:43:54 - 10:13:54 | 3357 |
Cedarville | 09:58:50 | -59.7 | Dark | Down | 29.7 | 269.1 | Low | 09:43:50 - 10:13:50 | 3342 |
Fall River/Burney | 09:58:50 | -60.7 | Dark | Down | 30.7 | 268.6 | Up | 09:43:50 - 10:13:50 | 3271 |
Susanville | 09:58:47 | -60.6 | Dark | Down | 30.1 | 269.4 | Up | 09:43:47 - 10:13:47 | 3226 |
Gimple | 09:58:47 | -60.8 | Dark | Down | 30.3 | 269.5 | Up | 09:43:47 - 10:13:47 | 3194 |
Greenville | 09:58:47 | -60.9 | Dark | Down | 30.3 | 269.4 | Up | 09:43:47 - 10:13:47 | 3193 |
Quincy | 09:58:47 | -61.0 | Dark | Down | 30.3 | 269.5 | Up | 09:43:47 - 10:13:47 | 3173 |
Portola | 09:58:45 | -60.7 | Dark | Down | 30.0 | 269.9 | Low | 09:43:45 - 10:13:45 | 3171 |
Reno | 09:58:43 | -60.4 | Dark | Down | 29.5 | 270.5 | Low | 09:43:43 - 10:13:43 | 3159 |
Carson City | 09:58:42 | -60.6 | Dark | Down | 29.5 | 270.7 | Low | 09:43:42 - 10:13:42 | 3125 |
Yerington | 09:58:40 | -60.2 | Dark | Down | 29.0 | 271.2 | Low | 09:43:40 - 10:13:40 | 3119 |
Gardnerville | 09:58:41 | -60.7 | Dark | Down | 29.4 | 270.9 | Low | 09:43:41 - 10:13:41 | 3102 |
Hawthorne | 09:58:38 | -60.1 | Dark | Down | 28.6 | 271.8 | Low | 09:43:38 - 10:13:38 | 3086 |
Tonopah | 09:58:33 | -59.2 | Dark | Down | 27.5 | 272.9 | Low | 09:43:33 - 10:13:33 | 3071 |
Lee Vining | 09:58:37 | -60.7 | Dark | Down | 28.9 | 271.8 | Low | 09:43:37 - 10:13:37 | 3020 |
Bishop | 09:58:34 | -60.4 | Dark | Down | 28.4 | 272.5 | Low | 09:43:34 - 10:13:34 | 2977 |
Beatty | 09:58:30 | -59.3 | Dark | Down | 27.0 | 273.7 | Low | 09:43:30 - 10:13:30 | 2969 |
Indian Springs | 09:58:27 | -58.6 | Dark | Down | 26.2 | 274.5 | Low | 09:43:27 - 10:13:27 | 2962 |
Henderson | 09:58:24 | -58.3 | Dark | Down | 25.6 | 275.1 | Low | 09:43:24 - 10:13:24 | 2926 |
Lone Pine | 09:58:31 | -60.4 | Dark | Down | 28.1 | 273.1 | Low | 09:43:31 - 10:13:31 | 2910 |
Patrick | 09:58:21 | -57.6 | Dark | Down | 24.6 | 276.0 | Low | 09:43:21 - 10:13:21 | 2891 |
DCO | 09:58:19 | -57.1 | Dark | Down | 24.0 | 276.5 | Low | 09:43:19 - 10:13:19 | 2878 |
Searchlight/Boulder City | 09:58:22 | -58.4 | Dark | Down | 25.5 | 275.4 | Low | 09:43:22 - 10:13:22 | 2871 |
Kingman/Dolan Springs | 09:58:20 | -57.8 | Dark | Down | 24.7 | 276.0 | Low | 09:43:20 - 10:13:20 | 2865 |
Laughlin/Bullhead City | 09:58:21 | -58.2 | Dark | Down | 25.2 | 275.7 | Low | 09:43:21 - 10:13:21 | 2850 |
Mohave Valley | 09:58:20 | -58.3 | Dark | Down | 25.1 | 275.9 | Low | 09:43:20 - 10:13:20 | 2823 |
Lake Havasu City | 09:58:19 | -58.2 | Dark | Down | 24.9 | 276.2 | Low | 09:43:19 - 10:13:19 | 2790 |
Parker | 09:58:18 | -58.2 | Dark | Down | 24.8 | 276.4 | Low | 09:43:18 - 10:13:18 | 2755 |
CPSLO | 09:58:33 | -62.8 | Dark | Down | 30.1 | 272.4 | Up | 09:43:33 - 10:13:33 | 2723 |
Blythe | 09:58:17 | -58.6 | Dark | Down | 25.0 | 276.5 | Low | 09:43:17 - 10:13:17 | 2696 |
Idyllwild | 09:58:21 | -60.3 | Dark | Down | 26.8 | 275.3 | Low | 09:43:21 - 10:13:21 | 2656 |
Wildwood | 09:58:25 | -61.7 | Dark | Down | 28.4 | 274.1 | Low | 09:43:25 - 10:13:25 | 2648 |
Calipatria | 09:58:17 | -59.5 | Dark | Down | 25.7 | 276.2 | Low | 09:43:17 - 10:13:17 | 2624 |
Yuma | 09:58:14 | -58.8 | Dark | Down | 25.0 | 276.9 | Low | 09:43:14 - 10:13:14 | 2602 |
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 04TT357, (2019/01/09 10:03UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 3.43 104 Alnath 05:26:17.5 +28:36:23 1.6 13.40 117 97 Tau 04:51:22.6 +18:50:23 5.1 0.99 108 PPM 120231 04:46:16.9 +18:44:04 7.1 0.28 107 PPM 120251 04:47:07.2 +18:29:15 8.7 0.12 107 PPM 120256 04:47:31.3 +18:29:51 10.4 0.11 107 04TT357 04:47:18.9 +18:35:59 14.8 107 Positions are for J2000
Event circumstances last updated at 2018/12/04 05:07:23 UT
Marc W. Buie, Southwest Research Institute