RECON: TNO occultation with 05VZ122

Event between 05VZ122 and star GA1040:01257718 with event index number of 294545

Geocentric closest approach at 2019/12/21 04:36:19 UTC

J2000 position of star is 05:53:27.2 +14:20:30
Equinox of date position of star is 05:54:31.5 +14:20:40
Stellar brightness G=16.7, use SENSEUP=128
Star is 117 degrees from the moon. Moon is 28% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 35.6 AU from the Sun and 34.6 AU from the Earth.
The TNO is moving 25.1 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 1241 seconds.
The 1-sigma cross-track error in the shadow position is 4285 km.
The sky-plane scale is 25107.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=205.1 km assuming a 5% albedo -- 8.2 sec chord
Diameter=83.7 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 05VZ122, (2019/12/21 04:36UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:15.2 +07:24:33  0.4  6.95 117
Bellatrix      05:26:12.2 +06:21:58  1.6 10.60 124
137 Tau        05:53:30.4 +14:10:31  5.5  0.31 117
PPM 121548     05:54:44.8 +14:26:08  8.5  0.10 117
PPM 121532     05:54:22.7 +14:23:49 10.4  0.07 117
05VZ122        05:54:35.4 +14:20:40 16.7       117
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 0.7 sigma about the mid-time.
The median site spacing is 20.3 km RECON observability=1.0 and success probability=10.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 04:38:18 -43.4 Dark Down 36.8 114.0 Up 04:23:18 - 04:53:18 2929
Kelowna 04:38:17 -43.6 Dark Down 37.0 114.4 Up 04:23:17 - 04:53:17 2927
Penticton 04:38:19 -43.6 Dark Down 37.0 113.9 Up 04:23:19 - 04:53:19 2900
Okanagan Falls 04:38:20 -43.7 Dark Down 37.1 113.8 Up 04:23:20 - 04:53:20 2885
Oliver 04:38:20 -43.7 Dark Down 37.2 113.7 Up 04:23:20 - 04:53:20 2871
Anarchist Mountain Observatory 04:38:20 -43.9 Dark Down 37.3 113.8 Up 04:23:20 - 04:53:20 2854
Oroville 04:38:20 -43.9 Dark Down 37.3 113.6 Up 04:23:20 - 04:53:20 2849
Tonasket 04:38:21 -43.9 Dark Down 37.4 113.5 Up 04:23:21 - 04:53:21 2830
Okanogan 04:38:22 -43.9 Dark Down 37.5 113.1 Up 04:23:22 - 04:53:22 2804
Brewster 04:38:23 -43.9 Dark Down 37.5 112.7 Up 04:23:23 - 04:53:23 2785
Manson/Chelan 04:38:24 -43.7 Dark Down 37.3 112.2 Up 04:23:24 - 04:53:24 2774
Entiat 04:38:25 -43.7 Dark Down 37.4 112.0 Up 04:23:25 - 04:53:25 2756
Wenatchee 04:38:26 -43.7 Dark Down 37.4 111.8 Up 04:23:26 - 04:53:26 2737
Ellensburg 04:38:28 -43.6 Dark Down 37.4 111.3 Up 04:23:28 - 04:53:28 2706
Yakima 04:38:28 -43.7 Dark Down 37.5 111.0 Up 04:23:28 - 04:53:28 2671
Toppenish/White Swan 04:38:29 -43.9 Dark Down 37.7 111.0 Up 04:23:29 - 04:53:29 2650
Pasco 04:38:27 -44.7 Dark Down 38.6 112.0 Up 04:23:27 - 04:53:27 2619
Goldendale 04:38:31 -43.7 Dark Down 37.7 110.2 Up 04:23:31 - 04:53:31 2610
The Dalles 04:38:32 -43.5 Dark Down 37.5 109.7 Up 04:23:32 - 04:53:32 2597
PNWRO 04:38:27 -45.0 Dark Down 38.8 112.1 Up 04:23:27 - 04:53:27 2594
George/Umatilla 04:38:28 -44.7 Dark Down 38.6 111.6 Up 04:23:28 - 04:53:28 2594
Maupin 04:38:33 -43.6 Dark Down 37.7 109.5 Up 04:23:33 - 04:53:33 2560
Madras/Culver 04:38:35 -43.7 Dark Down 37.9 109.1 Up 04:23:35 - 04:53:35 2513
Sisters 04:38:36 -43.5 Dark Down 37.7 108.4 Up 04:23:36 - 04:53:36 2492
Redmond 04:38:35 -43.7 Dark Down 37.9 108.8 Up 04:23:35 - 04:53:35 2483
Bend 04:38:36 -43.7 Dark Down 37.9 108.5 Up 04:23:36 - 04:53:36 2466
Oregon Observatory 04:38:37 -43.6 Dark Down 37.9 108.2 Up 04:23:37 - 04:53:37 2454
La Pine/Gilchrist 04:38:38 -43.6 Dark Down 37.9 108.0 Up 04:23:38 - 04:53:38 2437
North Lake 04:38:38 -44.1 Dark Down 38.5 108.2 Up 04:23:38 - 04:53:38 2388
Chiloquin 04:38:41 -43.5 Dark Down 38.0 106.9 Up 04:23:41 - 04:53:41 2345
Paisley 04:38:38 -44.4 Dark Down 38.9 108.1 Up 04:23:38 - 04:53:38 2333
Klamath Falls 04:38:42 -43.6 Dark Down 38.2 106.7 Up 04:23:42 - 04:53:42 2313
Lakeview 04:38:39 -44.7 Dark Down 39.2 107.9 Up 04:23:39 - 04:53:39 2284
Tulelake 04:38:42 -43.9 Dark Down 38.5 106.8 Up 04:23:42 - 04:53:42 2283
Cedarville 04:38:40 -44.9 Dark Down 39.5 107.5 Up 04:23:40 - 04:53:40 2222
Fall River/Burney 04:38:44 -44.0 Dark Down 38.8 106.2 Up 04:23:44 - 04:53:44 2200
Susanville 04:38:44 -44.7 Dark Down 39.5 106.3 Up 04:23:44 - 04:53:44 2129
Greenville 04:38:45 -44.5 Dark Down 39.4 105.8 Up 04:23:45 - 04:53:45 2110
Gimple 04:38:45 -44.5 Dark Down 39.4 105.9 Up 04:23:45 - 04:53:45 2108
Quincy 04:38:46 -44.5 Dark Down 39.4 105.7 Up 04:23:46 - 04:53:46 2091
Portola 04:38:45 -44.9 Dark Down 39.8 106.0 Up 04:23:45 - 04:53:45 2071
Reno 04:38:44 -45.4 Dark Down 40.4 106.3 Up 04:23:44 - 04:53:44 2034
Carson City 04:38:45 -45.5 Dark Down 40.5 106.0 Up 04:23:45 - 04:53:45 2001
Gardnerville 04:38:45 -45.5 Dark Down 40.6 105.8 Up 04:23:45 - 04:53:45 1977
Yerington 04:38:44 -46.0 Dark Down 41.0 106.3 Up 04:23:44 - 04:53:44 1971
Hawthorne 04:38:43 -46.4 Dark Down 41.5 106.4 Up 04:23:43 - 04:53:43 1918
Lee Vining 04:38:46 -46.1 Dark Down 41.3 105.5 Up 04:23:46 - 04:53:46 1874
Tonopah 04:38:41 -47.6 Dark Down 42.7 107.1 Up 04:23:41 - 04:53:41 1848
Niwot 04:38:06 -56.2 Dark Down 50.4 120.6 Up 04:23:06 - 04:53:06 1847
Bishop 04:38:46 -46.7 Dark Down 42.0 105.6 Up 04:23:46 - 04:53:46 1804
Beatty 04:38:42 -48.0 Dark Down 43.4 106.5 Up 04:23:42 - 04:53:42 1730
Lone Pine 04:38:46 -47.0 Dark Down 42.5 105.2 Up 04:23:46 - 04:53:46 1725
Indian Springs 04:38:41 -48.9 Dark Down 44.3 107.1 Up 04:23:41 - 04:53:41 1679
CPSLO 04:38:55 -45.0 Dark Down 40.8 102.1 Up 04:23:55 - 04:53:55 1650
Henderson 04:38:40 -49.5 Dark Down 45.0 107.1 Up 04:23:40 - 04:53:40 1615
Searchlight/Boulder City 04:38:41 -49.6 Dark Down 45.2 106.6 Up 04:23:41 - 04:53:41 1558
Patrick 04:38:38 -50.5 Dark Down 46.1 107.4 Up 04:23:38 - 04:53:38 1534
Laughlin/Bullhead City 04:38:41 -50.0 Dark Down 45.6 106.6 Up 04:23:41 - 04:53:41 1523
Kingman/Dolan Springs 04:38:39 -50.4 Dark Down 46.0 107.1 Up 04:23:39 - 04:53:39 1516
Mohave Valley 04:38:41 -50.0 Dark Down 45.7 106.4 Up 04:23:41 - 04:53:41 1496
Wildwood 04:38:53 -46.7 Dark Down 42.7 102.6 Up 04:23:53 - 04:53:53 1493
DCO 04:38:37 -51.1 Dark Down 46.7 107.7 Up 04:23:37 - 04:53:37 1492
Lake Havasu City 04:38:41 -50.2 Dark Down 46.0 106.2 Up 04:23:41 - 04:53:41 1453
Idyllwild 04:38:49 -48.3 Dark Down 44.3 103.6 Up 04:23:49 - 04:53:49 1422
Parker 04:38:42 -50.3 Dark Down 46.1 105.8 Up 04:23:42 - 04:53:42 1417
Blythe 04:38:43 -50.1 Dark Down 46.0 105.1 Up 04:23:43 - 04:53:43 1371
Calipatria 04:38:47 -49.3 Dark Down 45.4 103.9 Up 04:23:47 - 04:53:47 1340
Yuma 04:38:45 -50.1 Dark Down 46.2 104.1 Up 04:23:45 - 04:53:45 1280

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, (2019/12/21 04:36UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  6.95 117
Bellatrix      05:25:07.8 +06:20:58  1.6 10.60 124
137 Tau        05:52:22.2 +14:10:18  5.5  0.31 117
PPM 121548     05:53:36.6 +14:25:58  8.5  0.10 117
PPM 121532     05:53:14.4 +14:23:38 10.4  0.07 117
05VZ122        05:53:27.2 +14:20:30 16.7       117
Positions are for J2000

Event circumstances last updated at 2018/10/25 20:41:54 UT

Marc W. Buie, Southwest Research Institute

RECON