RECON: TNO occultation with 455206

Event between (455206) 01FE193 and star UC4-413-058543 with event index number of 105299

Geocentric closest approach at 2017/04/16 03:19:45 UTC

J2000 position of star is 13:35:06.0 -07:32:55
Equinox of date position of star is 13:35:57.0 -07:37:53
Stellar brightness R=15.9
Star is 55 degrees from the moon. Moon is 79% illuminated.
TNO apparent brightness V=23.6

[RECON map]
TNO is 44.2 AU from the Sun and 43.2 AU from the Earth.
The TNO is moving 25.1 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 213 seconds.
The 1-sigma cross-track error in the shadow position is 2901 km.

The TNO has an absolute magnitude Hv=7.2
Diameter=218.8 km assuming a 5% albedo -- 8.7 sec chord
Diameter=89.3 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 455206, (2017/04/16 03:20UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:06.4 -11:15:04  1.0  4.36  57
74 Vir         13:32:51.9 -06:20:40  4.1  1.51  57
PPM 196627     13:34:18.8 -07:42:39  7.6  0.43  56
PPM 196644     13:35:33.4 -07:41:39  9.7  0.13  55
455206         13:36:00.4 -07:38:12 15.9        55
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 03:23:20 -5.9 CT Down 8.4 111.8 Really Low 03:05:05 - 03:41:34 6149
Tonasket 03:23:21 -6.0 CT Down 8.5 111.8 Really Low 03:05:07 - 03:41:36 6128
Okanogan 03:23:22 -6.1 CT Down 8.5 111.6 Really Low 03:05:07 - 03:41:36 6094
Brewster 03:23:22 -6.1 CT Down 8.5 111.4 Really Low 03:05:08 - 03:41:37 6065
Manson/Chelan 03:23:22 -5.9 CT Down 8.3 111.1 Really Low 03:05:08 - 03:41:37 6039
Entiat 03:23:22 -5.9 CT Down 8.4 111.0 Really Low 03:05:08 - 03:41:37 6017
Wenatchee 03:23:23 -6.0 CT Down 8.4 110.9 Really Low 03:05:09 - 03:41:38 5991
Ellensburg 03:23:23 -6.0 CT Down 8.4 110.7 Really Low 03:05:09 - 03:41:38 5948
Yakima 03:23:25 -6.1 CT Down 8.5 110.6 Really Low 03:05:11 - 03:41:40 5910
Toppenish/White Swan 03:23:25 -6.3 CT Down 8.7 110.7 Really Low 03:05:11 - 03:41:40 5892
Pasco 03:23:24 -7.2 CT Down 9.6 111.7 Really Low 03:05:10 - 03:41:39 5905
PNWRO 03:23:24 -7.4 CT Down 9.8 111.8 Really Low 03:05:09 - 03:41:38 5887
George/Umatilla 03:23:25 -7.2 CT Down 9.6 111.4 Really Low 03:05:11 - 03:41:40 5870
Goldendale 03:23:27 -6.3 CT Down 8.7 110.3 Really Low 03:05:13 - 03:41:42 5832
The Dalles 03:23:27 -6.1 CT Down 8.5 110.0 Really Low 03:05:12 - 03:41:41 5803
Maupin 03:23:28 -6.3 CT Down 8.7 110.0 Really Low 03:05:14 - 03:41:43 5765
Madras/Culver 03:23:29 -6.5 CT Down 8.9 109.9 Really Low 03:05:14 - 03:41:43 5712
Sisters 03:23:29 -6.3 CT Down 8.7 109.5 Really Low 03:05:15 - 03:41:44 5671
Redmond 03:23:29 -6.6 CT Down 9.0 109.8 Really Low 03:05:14 - 03:41:43 5677
Bend 03:23:31 -6.6 CT Down 8.9 109.7 Really Low 03:05:16 - 03:41:45 5653
Oregon Observatory 03:23:30 -6.6 CT Down 8.9 109.6 Really Low 03:05:16 - 03:41:45 5634
LaPine/Gilchrist 03:23:31 -6.6 CT Down 8.9 109.5 Really Low 03:05:17 - 03:41:46 5613
North Lake 03:23:31 -7.2 CT Down 9.5 109.9 Really Low 03:05:17 - 03:41:46 5583
Paisley 03:23:32 -7.6 CT Down 9.9 110.1 Really Low 03:05:17 - 03:41:46 5536
Chiloquin 03:23:33 -6.7 CT Down 9.1 109.1 Really Low 03:05:18 - 03:41:47 5497
Klamath Falls 03:23:33 -6.9 CT Down 9.2 109.1 Really Low 03:05:19 - 03:41:48 5465
Lakeview 03:23:31 -7.9 CT Down 10.2 110.1 Really Low 03:05:17 - 03:41:46 5490
Tulelake 03:23:33 -7.2 CT Down 9.5 109.3 Really Low 03:05:19 - 03:41:48 5445
Cedarville 03:23:33 -8.3 CT Down 10.6 110.1 Really Low 03:05:19 - 03:41:48 5429
Fall River/Burney 03:23:35 -7.6 CT Down 9.9 109.2 Really Low 03:05:21 - 03:41:50 5356
Susanville 03:23:34 -8.4 CT Down 10.6 109.6 Really Low 03:05:19 - 03:41:48 5309
Greenville 03:23:36 -8.3 CT Down 10.5 109.3 Really Low 03:05:21 - 03:41:50 5276
Niwot 03:23:14 -19.0 Dark Down 21.4 121.0 Low 03:05:00 - 03:41:29 5653
Quincy 03:23:36 -8.3 CT Down 10.6 109.3 Really Low 03:05:21 - 03:41:50 5255
Portola 03:23:35 -8.7 CT Down 11.0 109.6 Really Low 03:05:21 - 03:41:50 5253
Reno 03:23:36 -9.3 CT Down 11.5 110.0 Really Low 03:05:21 - 03:41:50 5240
Carson City 03:23:35 -9.4 CT Down 11.7 110.0 Really Low 03:05:21 - 03:41:50 5205
Yerington 03:23:36 -10.0 CT Down 12.2 110.4 Really Low 03:05:21 - 03:41:50 5199
Gardnerville 03:23:36 -9.6 CT Down 11.8 110.0 Really Low 03:05:21 - 03:41:50 5182
Hawthorne 03:23:35 -10.5 CT Down 12.8 110.6 Really Low 03:05:21 - 03:41:50 5165
Lee Vining 03:23:37 -10.4 CT Down 12.6 110.2 Really Low 03:05:22 - 03:41:51 5097
Tonopah 03:23:34 -11.7 CT Down 14.0 111.5 Really Low 03:05:19 - 03:41:48 5150
Bishop 03:23:37 -11.1 CT Down 13.3 110.5 Really Low 03:05:22 - 03:41:51 5053
Lone Pine 03:23:37 -11.7 CT Down 13.9 110.6 Really Low 03:05:22 - 03:41:51 4984
Beatty 03:23:35 -12.5 AT Down 14.7 111.5 Really Low 03:05:20 - 03:41:49 5045
Indian Springs 03:23:33 -13.4 AT Down 15.6 112.2 Really Low 03:05:18 - 03:41:47 5038
Henderson 03:23:33 -14.2 AT Down 16.4 112.5 Really Low 03:05:19 - 03:41:48 5001
Searchlight/Boulder City 03:23:33 -14.4 AT Down 16.6 112.4 Really Low 03:05:18 - 03:41:47 4945
CPSLO 03:23:41 -10.2 CT Down 12.3 108.6 Really Low 03:05:27 - 03:41:56 4792
Kingman/Dolan Springs 03:23:33 -15.2 AT Down 17.4 112.9 Really Low 03:05:19 - 03:41:48 4939
Laughlin/Bullhead City 03:23:33 -14.8 AT Down 17.0 112.5 Really Low 03:05:19 - 03:41:48 4923
DCO 03:23:32 -15.9 AT Down 18.1 113.5 Really Low 03:05:17 - 03:41:46 4954
Mohave Valley 03:23:33 -14.9 AT Down 17.1 112.5 Really Low 03:05:19 - 03:41:48 4896
Lake Havasu City 03:23:33 -15.3 AT Down 17.5 112.5 Really Low 03:05:19 - 03:41:48 4862
Parker 03:23:34 -15.5 AT Down 17.6 112.4 Really Low 03:05:19 - 03:41:48 4827
Idyllwild 03:23:37 -13.8 AT Down 15.9 110.8 Really Low 03:05:23 - 03:41:52 4725
Blythe 03:23:34 -15.4 AT Down 17.6 112.1 Really Low 03:05:19 - 03:41:48 4766
Calipatria 03:23:37 -14.9 AT Down 17.0 111.4 Really Low 03:05:22 - 03:41:51 4692
Yuma 03:23:36 -15.8 AT Down 17.9 111.8 Really Low 03:05:21 - 03:41:50 4671

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.

Event circumstances last updated at 2016/03/20 17:20:28 UT

Marc W. Buie, Southwest Research Institute

RECON