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 05:38:11.3 +19:54:36
Stellar brightness R=15.2, use SENSEUP=128
Star is 26 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=21.1

[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 93 seconds.
The 1-sigma cross-track error in the shadow position is 987 km.
The sky-plane scale is 16797.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 8.7 sec chord
Diameter=85.3 km assuming a 30% albedo -- 3.6 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 01:04:52 - 01:21:21 6182
Tonasket 01:13:07 -10.6 CT Down 13.0 74.5 Really Low 01:04:53 - 01:21:22 6168
Okanogan 01:13:09 -10.3 CT Down 12.8 74.3 Really Low 01:04:55 - 01:21:24 6151
Brewster 01:13:10 -10.1 CT Down 12.6 74.1 Really Low 01:04:55 - 01:21:24 6140
Manson/Chelan 01:13:10 -9.8 CT Down 12.3 73.8 Really Low 01:04:56 - 01:21:25 6137
Entiat 01:13:11 -9.7 CT Down 12.2 73.7 Really Low 01:04:57 - 01:21:26 6125
Wenatchee 01:13:12 -9.5 CT Down 12.0 73.6 Really Low 01:04:58 - 01:21:27 6112
Ellensburg 01:13:14 -9.2 CT Down 11.8 73.4 Really Low 01:04:59 - 01:21:28 6092
Yakima 01:13:15 -9.0 CT Down 11.7 73.3 Really Low 01:05:01 - 01:21:30 6068
Toppenish/White Swan 01:13:16 -9.0 CT Down 11.7 73.4 Really Low 01:05:02 - 01:21:31 6050
Goldendale 01:13:18 -8.5 CT Down 11.3 73.0 Really Low 01:05:03 - 01:21:32 6026
The Dalles 01:13:18 -8.2 CT Down 11.0 72.7 Really Low 01:05:04 - 01:21:33 6021
Pasco 01:13:17 -9.8 CT Down 12.5 74.2 Really Low 01:05:02 - 01:21:31 6009
George/Umatilla 01:13:18 -9.5 CT Down 12.3 74.0 Really Low 01:05:04 - 01:21:33 5994
Maupin 01:13:20 -8.1 CT Down 10.9 72.7 Really Low 01:05:06 - 01:21:35 5992
PNWRO 01:13:18 -9.8 CT Down 12.6 74.3 Really Low 01:05:03 - 01:21:32 5988
Madras/Culver 01:13:22 -7.9 CT Down 10.7 72.6 Really Low 01:05:07 - 01:21:36 5958
Sisters 01:13:23 -7.4 CT Down 10.3 72.2 Really Low 01:05:09 - 01:21:38 5948
Redmond 01:13:23 -7.7 CT Down 10.6 72.5 Really Low 01:05:09 - 01:21:38 5936
Bend 01:13:24 -7.5 CT Down 10.4 72.3 Really Low 01:05:09 - 01:21:38 5925
Oregon Observatory 01:13:25 -7.3 CT Down 10.3 72.2 Really Low 01:05:10 - 01:21:39 5918
La Pine/Gilchrist 01:13:25 -7.2 CT Down 10.2 72.1 Really Low 01:05:11 - 01:21:40 5906
North Lake 01:13:27 -7.4 CT Down 10.5 72.5 Really Low 01:05:13 - 01:21:42 5861
Chiloquin 01:13:28 -6.5 CT Down 9.6 71.7 Really Low 01:05:14 - 01:21:43 5841
Klamath Falls 01:13:30 -6.4 CT Down 9.6 71.7 Really Low 01:05:16 - 01:21:45 5816
Paisley 01:13:29 -7.4 CT Down 10.6 72.6 Really Low 01:05:14 - 01:21:43 5814
Tulelake 01:13:31 -6.5 CT Down 9.7 71.9 Really Low 01:05:17 - 01:21:46 5789
Lakeview 01:13:31 -7.3 CT Down 10.6 72.6 Really Low 01:05:17 - 01:21:46 5774
Fall River/Burney 01:13:35 -6.2 CT Down 9.5 71.8 Really Low 01:05:20 - 01:21:49 5724
Cedarville 01:13:33 -7.2 CT Down 10.5 72.6 Really Low 01:05:18 - 01:21:47 5724
Susanville 01:13:37 -6.4 CT Down 9.8 72.2 Really Low 01:05:22 - 01:21:51 5659
Greenville 01:13:37 -6.1 CT Down 9.5 71.9 Really Low 01:05:23 - 01:21:52 5648
Gimple 01:13:38 -6.1 CT Down 9.6 72.0 Really Low 01:05:23 - 01:21:52 5645
Quincy 01:13:38 -6.0 CT Down 9.5 71.9 Really Low 01:05:24 - 01:21:53 5633
Portola 01:13:39 -6.3 CT Down 9.8 72.2 Really Low 01:05:24 - 01:21:53 5611
Reno 01:13:40 -6.6 CT Down 10.2 72.5 Really Low 01:05:26 - 01:21:55 5573
Carson City 01:13:41 -6.5 CT Down 10.1 72.5 Really Low 01:05:26 - 01:21:55 5546
Gardnerville 01:13:42 -6.4 CT Down 10.1 72.5 Really Low 01:05:27 - 01:21:56 5527
Yerington 01:13:42 -6.9 CT Down 10.5 72.8 Really Low 01:05:28 - 01:21:57 5514
Hawthorne 01:13:43 -7.0 CT Down 10.8 73.1 Really Low 01:05:29 - 01:21:58 5464
Lee Vining 01:13:45 -6.5 CT Down 10.2 72.7 Really Low 01:05:31 - 01:22:00 5436
Tonopah 01:13:46 -7.9 CT Down 11.7 73.8 Really Low 01:05:31 - 01:22:00 5387
Bishop 01:13:47 -6.7 CT Down 10.6 73.0 Really Low 01:05:33 - 01:22:02 5370
Lone Pine 01:13:50 -6.7 CT Down 10.7 73.0 Really Low 01:05:35 - 01:22:04 5302
Beatty 01:13:49 -7.8 CT Down 11.7 73.8 Really Low 01:05:34 - 01:22:03 5285
CPSLO 01:13:53 -4.2 CT Down 8.3 71.4 Really Low 01:05:38 - 01:22:07 5280
Indian Springs 01:13:50 -8.4 CT Down 12.5 74.4 Really Low 01:05:35 - 01:22:04 5227
Niwot 01:13:36 -17.3 AT Up 21.2 81.4 Low 01:05:22 - 01:21:51 5184
Henderson 01:13:52 -8.7 CT Down 12.9 74.6 Really Low 01:05:37 - 01:22:06 5164
Wildwood 01:13:57 -5.3 CT Down 9.5 72.3 Really Low 01:05:42 - 01:22:11 5122
Searchlight/Boulder City 01:13:53 -8.6 CT Down 12.8 74.5 Really Low 01:05:39 - 01:22:08 5117
Laughlin/Bullhead City 01:13:54 -8.7 CT Down 13.0 74.6 Really Low 01:05:40 - 01:22:09 5082
Patrick 01:13:53 -9.3 CT Down 13.6 75.1 Really Low 01:05:39 - 01:22:08 5080
Kingman/Dolan Springs 01:13:54 -9.1 CT Down 13.4 74.9 Really Low 01:05:40 - 01:22:09 5068
Mohave Valley 01:13:55 -8.6 CT Down 12.9 74.6 Really Low 01:05:41 - 01:22:10 5060
Idyllwild 01:13:59 -6.5 CT Down 10.9 73.3 Really Low 01:05:44 - 01:22:13 5034
DCO 01:13:54 -9.8 CT Down 14.1 75.4 Really Low 01:05:40 - 01:22:09 5033
Lake Havasu City 01:13:57 -8.7 CT Down 13.0 74.6 Really Low 01:05:42 - 01:22:11 5020
Parker 01:13:57 -8.5 CT Down 13.0 74.6 Really Low 01:05:43 - 01:22:12 4991
Blythe 01:13:59 -8.1 CT Down 12.6 74.3 Really Low 01:05:45 - 01:22:14 4958
Calipatria 01:14:00 -7.2 CT Down 11.7 73.7 Really Low 01:05:46 - 01:22:15 4947
Yuma 01:14:02 -7.7 CT Down 12.3 74.1 Really Low 01:05:47 - 01:22:16 4883

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 2017/12/05 19:08:12 UT

Marc W. Buie, Southwest Research Institute

RECON