RECON: TNO occultation with 05VZ122

Event between 05VZ122 and star UC4-524-014363 with event index number of 93436

Geocentric closest approach at 2017/12/28 04:24:17 UTC

J2000 position of star is 05:37:29.3 +14:47:47
Equinox of date position of star is 05:38:30.7 +14:48:21
Stellar brightness R=13.0, use SENSEUP=32
Star is 55 degrees from the moon. Moon is 69% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 35.3 AU from the Sun and 34.4 AU from the Earth.
The TNO is moving 24.4 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 829 seconds.
The 1-sigma cross-track error in the shadow position is 3860 km.
The sky-plane scale is 24939.8 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=205.1 km assuming a 5% albedo -- 8.4 sec chord
Diameter=83.7 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is 8:5EEE
 
 
 
 
 
 

Star training set for 05VZ122, (2017/12/28 04:24UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:08.8 +07:24:32  0.4  8.57  60
Bellatrix      05:26:05.8 +06:21:52  1.6  8.98  52
35 Ori         05:34:55.7 +14:19:00  5.6  1.00  54
PPM 121199     05:38:39.5 +15:15:15  8.3  0.45  55
PPM 121170     05:37:28.9 +14:39:49  8.6  0.29  55
05VZ122        05:38:30.9 +14:48:21 13.0        56
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 1.1 sigma about the mid-time.
The median site spacing is 21.9 km RECON observability=1.0 and success probability=2.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 04:26:05 -41.2 Dark Up 42.5 121.7 Up 04:11:05 - 04:41:05 9966
Tonasket 04:26:06 -41.2 Dark Up 42.6 121.5 Up 04:11:06 - 04:41:06 9946
Okanogan 04:26:07 -41.2 Dark Up 42.7 121.1 Up 04:11:07 - 04:41:07 9920
Brewster 04:26:08 -41.1 Dark Up 42.8 120.6 Up 04:11:08 - 04:41:08 9899
Manson/Chelan 04:26:09 -40.9 Dark Up 42.7 120.1 Up 04:11:09 - 04:41:09 9887
Entiat 04:26:11 -40.9 Dark Up 42.7 119.9 Up 04:11:11 - 04:41:11 9869
Wenatchee 04:26:11 -40.9 Dark Up 42.8 119.5 Up 04:11:11 - 04:41:11 9848
Ellensburg 04:26:12 -40.8 Dark Up 42.9 119.0 Up 04:11:12 - 04:41:12 9815
Yakima 04:26:13 -40.9 Dark Up 43.1 118.6 Up 04:11:13 - 04:41:13 9780
Toppenish/White Swan 04:26:13 -41.0 Dark Up 43.3 118.6 Up 04:11:13 - 04:41:13 9758
Pasco 04:26:11 -41.9 Dark Up 44.1 119.9 Up 04:11:11 - 04:41:11 9729
Goldendale 04:26:16 -40.8 Dark Up 43.3 117.8 Up 04:11:16 - 04:41:16 9716
PNWRO 04:26:10 -42.1 Dark Up 44.4 119.9 Up 04:11:10 - 04:41:10 9704
George/Umatilla 04:26:12 -41.8 Dark Up 44.1 119.4 Up 04:11:12 - 04:41:12 9703
The Dalles 04:26:17 -40.6 Dark Up 43.2 117.2 Up 04:11:17 - 04:41:17 9702
Maupin 04:26:18 -40.8 Dark Up 43.4 117.0 Up 04:11:18 - 04:41:18 9663
Madras/Culver 04:26:20 -40.8 Dark Up 43.6 116.5 Up 04:11:20 - 04:41:20 9615
Sisters 04:26:21 -40.5 Dark Up 43.5 115.7 Up 04:11:21 - 04:41:21 9592
Redmond 04:26:20 -40.8 Dark Up 43.8 116.1 Up 04:11:20 - 04:41:20 9584
Bend 04:26:21 -40.7 Dark Up 43.8 115.8 Up 04:11:21 - 04:41:21 9566
Oregon Observatory 04:26:22 -40.7 Dark Up 43.8 115.5 Up 04:11:22 - 04:41:22 9553
La Pine/Gilchrist 04:26:22 -40.6 Dark Up 43.8 115.3 Up 04:11:22 - 04:41:22 9535
North Lake 04:26:22 -41.1 Dark Up 44.4 115.5 Up 04:11:22 - 04:41:22 9486
Chiloquin 04:26:25 -40.5 Dark Up 44.1 114.0 Up 04:11:25 - 04:41:25 9440
Paisley 04:26:22 -41.4 Dark Up 44.9 115.3 Up 04:11:22 - 04:41:22 9430
Klamath Falls 04:26:27 -40.6 Dark Up 44.2 113.7 Up 04:11:27 - 04:41:27 9407
Lakeview 04:26:23 -41.6 Dark Up 45.2 115.1 Up 04:11:23 - 04:41:23 9380
Tulelake 04:26:27 -40.8 Dark Up 44.6 113.8 Up 04:11:27 - 04:41:27 9377
Cedarville 04:26:23 -41.8 Dark Up 45.6 114.7 Up 04:11:23 - 04:41:23 9317
Fall River/Burney 04:26:28 -40.9 Dark Up 45.0 113.0 Up 04:11:28 - 04:41:28 9292
Susanville 04:26:27 -41.5 Dark Up 45.7 113.2 Up 04:11:27 - 04:41:27 9220
Greenville 04:26:28 -41.3 Dark Up 45.6 112.6 Up 04:11:28 - 04:41:28 9199
Gimple 04:26:28 -41.4 Dark Up 45.7 112.7 Up 04:11:28 - 04:41:28 9198
Quincy 04:26:29 -41.4 Dark Up 45.7 112.4 Up 04:11:29 - 04:41:29 9180
Portola 04:26:28 -41.7 Dark Up 46.1 112.8 Up 04:11:28 - 04:41:28 9160
Reno 04:26:27 -42.2 Dark Up 46.7 113.1 Up 04:11:27 - 04:41:27 9125
Carson City 04:26:27 -42.3 Dark Up 46.8 112.8 Up 04:11:27 - 04:41:27 9090
Gardnerville 04:26:28 -42.3 Dark Up 47.0 112.6 Up 04:11:28 - 04:41:28 9066
Yerington 04:26:26 -42.8 Dark Up 47.4 113.2 Up 04:11:26 - 04:41:26 9061
Hawthorne 04:26:26 -43.2 Dark Up 47.9 113.2 Up 04:11:26 - 04:41:26 9008
Niwot 04:25:43 -53.1 Dark Up 55.9 130.3 Up 04:10:43 - 04:40:43 8969
Lee Vining 04:26:28 -42.9 Dark Up 47.8 112.2 Up 04:11:28 - 04:41:28 8961
Tonopah 04:26:23 -44.3 Dark Up 49.1 114.1 Up 04:11:23 - 04:41:23 8940
Bishop 04:26:27 -43.5 Dark Up 48.5 112.3 Up 04:11:27 - 04:41:27 8892
Beatty 04:26:24 -44.8 Dark Up 49.9 113.3 Up 04:11:24 - 04:41:24 8820
Lone Pine 04:26:28 -43.7 Dark Up 49.1 111.8 Up 04:11:28 - 04:41:28 8812
Indian Springs 04:26:21 -45.6 Dark Up 50.8 114.0 Up 04:11:21 - 04:41:21 8770
CPSLO 04:26:37 -41.7 Dark Up 47.6 108.1 Up 04:11:37 - 04:41:37 8729
Henderson 04:26:20 -46.2 Dark Up 51.6 114.1 Up 04:11:20 - 04:41:20 8707
Searchlight/Boulder City 04:26:20 -46.3 Dark Up 51.8 113.5 Up 04:11:20 - 04:41:20 8649
Patrick 04:26:18 -47.2 Dark Up 52.6 114.5 Up 04:11:18 - 04:41:18 8627
Laughlin/Bullhead City 04:26:20 -46.6 Dark Up 52.2 113.5 Up 04:11:20 - 04:41:20 8613
Kingman/Dolan Springs 04:26:19 -47.0 Dark Up 52.6 114.1 Up 04:11:19 - 04:41:19 8607
Mohave Valley 04:26:20 -46.6 Dark Up 52.3 113.2 Up 04:11:20 - 04:41:20 8586
DCO 04:26:16 -47.7 Dark Up 53.3 114.9 Up 04:11:16 - 04:41:16 8585
Wildwood 04:26:34 -43.3 Dark Up 49.6 108.6 Up 04:11:34 - 04:41:34 8573
Lake Havasu City 04:26:20 -46.8 Dark Up 52.7 113.0 Up 04:11:20 - 04:41:20 8542
Parker 04:26:21 -46.9 Dark Up 52.8 112.6 Up 04:11:21 - 04:41:21 8506
Idyllwild 04:26:29 -44.9 Dark Up 51.1 109.8 Up 04:11:29 - 04:41:29 8505
Blythe 04:26:23 -46.6 Dark Up 52.8 111.6 Up 04:11:23 - 04:41:23 8458
Calipatria 04:26:26 -45.9 Dark Up 52.3 110.2 Up 04:11:26 - 04:41:26 8424
Yuma 04:26:24 -46.6 Dark Up 53.1 110.5 Up 04:11:24 - 04:41:24 8365

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 05VZ122, (2017/12/28 04:24UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  8.57  60
Bellatrix      05:25:07.8 +06:20:58  1.6  8.98  52
35 Ori         05:33:54.3 +14:18:20  5.6  1.00  54
PPM 121199     05:37:37.7 +15:14:41  8.3  0.45  55
PPM 121170     05:36:27.3 +14:39:12  8.6  0.29  55
05VZ122        05:37:29.3 +14:47:47 13.0        55
Positions are for J2000

Event circumstances last updated at 2017/12/02 17:08:53 UT

Marc W. Buie, Southwest Research Institute

RECON