RECON: TNO occultation with 463368

Event between (463368) 12VU85 and star UC4-550-017190 with event index number of 172878

Geocentric closest approach at 2018/12/24 01:10:29 UTC

J2000 position of star is 05:37:07.6 +19:54:01
Equinox of date position of star is 05:38:08.2 +19:54:35
Stellar brightness R=15.2, use SENSEUP=128
Star is 26 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=21.0

[RECON map]
TNO is 24.1 AU from the Sun and 23.2 AU from the Earth.
The TNO is moving 23.9 km/sec on the sky relative to the star, or, 5.1 arcsec/hr.
The 1-sigma error in the time of the event is 66 seconds.
The 1-sigma cross-track error in the shadow position is 905 km.
The sky-plane scale is 16797.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=218.8 km assuming a 5% albedo -- 9.1 sec chord
Diameter=89.3 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 463368, (2018/12/24 01:10UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:12.0 +07:24:33  0.4 13.24  26
Alnath         05:27:29.6 +28:37:18  1.6  9.05  28
PPM 094484     05:34:46.6 +20:29:09  6.0  1.00  26
PPM 121197     05:38:41.8 +19:47:22  8.5  0.16  26
463368         05:38:15.1 +19:54:38 15.2        25
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 0.0 km RECON observability=0.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 01:13:07 -10.6 CT Down 13.0 74.5 Really Low 01:07:07 - 01:19:06 6175
Tonasket 01:13:07 -10.6 CT Down 13.0 74.5 Really Low 01:07:08 - 01:19:07 6161
Okanogan 01:13:09 -10.3 CT Down 12.8 74.3 Really Low 01:07:09 - 01:19:08 6145
Brewster 01:13:09 -10.1 CT Down 12.6 74.1 Really Low 01:07:10 - 01:19:09 6133
Manson/Chelan 01:13:10 -9.8 CT Down 12.3 73.8 Really Low 01:07:11 - 01:19:10 6130
Entiat 01:13:11 -9.7 CT Down 12.2 73.7 Really Low 01:07:11 - 01:19:10 6118
Wenatchee 01:13:12 -9.5 CT Down 12.0 73.6 Really Low 01:07:12 - 01:19:11 6105
Ellensburg 01:13:14 -9.2 CT Down 11.8 73.4 Really Low 01:07:14 - 01:19:13 6086
Yakima 01:13:15 -9.0 CT Down 11.7 73.3 Really Low 01:07:16 - 01:19:15 6061
Toppenish/White Swan 01:13:17 -9.0 CT Down 11.7 73.4 Really Low 01:07:17 - 01:19:16 6043
Goldendale 01:13:18 -8.5 CT Down 11.3 73.0 Really Low 01:07:18 - 01:19:17 6019
The Dalles 01:13:18 -8.2 CT Down 11.0 72.7 Really Low 01:07:19 - 01:19:18 6014
Pasco 01:13:17 -9.8 CT Down 12.5 74.2 Really Low 01:07:18 - 01:19:17 6002
George/Umatilla 01:13:18 -9.5 CT Down 12.3 74.0 Really Low 01:07:19 - 01:19:18 5987
Maupin 01:13:20 -8.1 CT Down 10.9 72.7 Really Low 01:07:21 - 01:19:20 5985
PNWRO 01:13:18 -9.8 CT Down 12.6 74.3 Really Low 01:07:18 - 01:19:17 5981
Madras/Culver 01:13:23 -7.9 CT Down 10.7 72.6 Really Low 01:07:23 - 01:19:22 5951
Sisters 01:13:23 -7.4 CT Down 10.3 72.2 Really Low 01:07:24 - 01:19:23 5941
Redmond 01:13:23 -7.7 CT Down 10.6 72.5 Really Low 01:07:24 - 01:19:23 5929
Bend 01:13:24 -7.5 CT Down 10.4 72.3 Really Low 01:07:24 - 01:19:23 5919
Oregon Observatory 01:13:25 -7.3 CT Down 10.3 72.2 Really Low 01:07:25 - 01:19:24 5911
La Pine/Gilchrist 01:13:26 -7.2 CT Down 10.2 72.1 Really Low 01:07:26 - 01:19:25 5899
North Lake 01:13:27 -7.4 CT Down 10.5 72.5 Really Low 01:07:28 - 01:19:27 5854
Chiloquin 01:13:29 -6.5 CT Down 9.6 71.7 Really Low 01:07:29 - 01:19:28 5834
Klamath Falls 01:13:31 -6.4 CT Down 9.6 71.7 Really Low 01:07:31 - 01:19:30 5809
Paisley 01:13:30 -7.4 CT Down 10.6 72.6 Really Low 01:07:30 - 01:19:29 5807
Tulelake 01:13:31 -6.5 CT Down 9.7 71.9 Really Low 01:07:32 - 01:19:31 5782
Lakeview 01:13:31 -7.3 CT Down 10.6 72.6 Really Low 01:07:32 - 01:19:31 5767
Fall River/Burney 01:13:35 -6.2 CT Down 9.5 71.8 Really Low 01:07:35 - 01:19:34 5717
Cedarville 01:13:33 -7.2 CT Down 10.5 72.6 Really Low 01:07:33 - 01:19:32 5717
Susanville 01:13:37 -6.4 CT Down 9.8 72.2 Really Low 01:07:38 - 01:19:37 5652
Greenville 01:13:38 -6.1 CT Down 9.5 71.9 Really Low 01:07:38 - 01:19:37 5641
Gimple 01:13:38 -6.1 CT Down 9.6 72.0 Really Low 01:07:38 - 01:19:37 5638
Quincy 01:13:38 -6.0 CT Down 9.5 71.9 Really Low 01:07:39 - 01:19:38 5626
Portola 01:13:39 -6.3 CT Down 9.8 72.2 Really Low 01:07:39 - 01:19:38 5604
Reno 01:13:40 -6.6 CT Down 10.2 72.5 Really Low 01:07:41 - 01:19:40 5566
Carson City 01:13:41 -6.5 CT Down 10.1 72.5 Really Low 01:07:42 - 01:19:41 5539
Gardnerville 01:13:42 -6.4 CT Down 10.1 72.5 Really Low 01:07:43 - 01:19:42 5520
Yerington 01:13:42 -6.9 CT Down 10.5 72.8 Really Low 01:07:43 - 01:19:42 5506
Hawthorne 01:13:44 -7.0 CT Down 10.8 73.1 Really Low 01:07:44 - 01:19:43 5456
Lee Vining 01:13:46 -6.5 CT Down 10.2 72.7 Really Low 01:07:46 - 01:19:45 5429
Tonopah 01:13:46 -7.9 CT Down 11.7 73.8 Really Low 01:07:46 - 01:19:45 5380
Bishop 01:13:47 -6.7 CT Down 10.6 73.0 Really Low 01:07:48 - 01:19:47 5362
Lone Pine 01:13:50 -6.7 CT Down 10.7 73.0 Really Low 01:07:50 - 01:19:49 5294
Beatty 01:13:49 -7.8 CT Down 11.7 73.8 Really Low 01:07:50 - 01:19:49 5278
CPSLO 01:13:53 -4.2 CT Down 8.3 71.4 Really Low 01:07:53 - 01:19:52 5272
Indian Springs 01:13:50 -8.4 CT Down 12.5 74.4 Really Low 01:07:51 - 01:19:50 5219
Niwot 01:13:36 -17.3 AT Up 21.2 81.4 Low 01:07:37 - 01:19:36 5177
Henderson 01:13:52 -8.7 CT Down 12.9 74.6 Really Low 01:07:52 - 01:19:51 5156
Wildwood 01:13:57 -5.3 CT Down 9.5 72.3 Really Low 01:07:57 - 01:19:56 5114
Searchlight/Boulder City 01:13:53 -8.6 CT Down 12.8 74.5 Really Low 01:07:53 - 01:19:52 5109
Laughlin/Bullhead City 01:13:54 -8.7 CT Down 13.0 74.6 Really Low 01:07:54 - 01:19:53 5074
Patrick 01:13:53 -9.3 CT Down 13.6 75.1 Really Low 01:07:53 - 01:19:52 5072
Kingman/Dolan Springs 01:13:54 -9.1 CT Down 13.4 74.9 Really Low 01:07:55 - 01:19:54 5060
Mohave Valley 01:13:55 -8.6 CT Down 12.9 74.6 Really Low 01:07:56 - 01:19:55 5052
Idyllwild 01:13:58 -6.5 CT Down 10.9 73.3 Really Low 01:07:59 - 01:19:58 5026
DCO 01:13:55 -9.8 CT Down 14.1 75.4 Really Low 01:07:55 - 01:19:54 5025
Lake Havasu City 01:13:56 -8.7 CT Down 13.0 74.6 Really Low 01:07:57 - 01:19:56 5012
Parker 01:13:57 -8.5 CT Down 13.0 74.6 Really Low 01:07:58 - 01:19:57 4982
Blythe 01:13:59 -8.1 CT Down 12.6 74.3 Really Low 01:07:59 - 01:19:58 4949
Calipatria 01:14:00 -7.2 CT Down 11.7 73.7 Really Low 01:08:01 - 01:20:00 4938
Yuma 01:14:01 -7.7 CT Down 12.3 74.1 Really Low 01:08:02 - 01:20:01 4874

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 463368, (2018/12/24 01:10UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 13.24  26
Alnath         05:26:17.5 +28:36:24  1.6  9.05  28
PPM 094484     05:33:38.8 +20:28:27  6.0  1.00  26
PPM 121197     05:37:34.4 +19:46:46  8.5  0.16  26
463368         05:37:07.6 +19:54:01 15.2        26
Positions are for J2000

Event circumstances last updated at 2017/01/21 18:07:38 UT

Marc W. Buie, Southwest Research Institute

RECON