RECON: TNO occultation with 05VA123

Event between 05VA123 and star GA1140:01834067 with event index number of 1084880

Geocentric closest approach at 2022/01/03 04:05:55 UTC

J2000 position of star is 06:05:39.6 +24:39:19
Equinox of date position of star is 06:06:53.7 +24:39:08
Stellar brightness G=15.7, use SENSEUP=128
Star is 163 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=25.8

[RECON map]
TNO is 37.8 AU from the Sun and 36.8 AU from the Earth.
The TNO is moving 24.9 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 3062 seconds.
The 1-sigma cross-track error in the shadow position is 5367 km.
The sky-plane scale is 26679.4 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=224.9 km assuming a 5% albedo -- 2.4 sec chord
Diameter=91.8 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 05VA123, (2022/01/03 04:06UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:21.8 +07:24:34  0.4 17.43 152
Alnath         05:27:41.1 +28:37:26  1.6  9.64 154
1 Gem          06:05:27.5 +23:15:37  4.2  1.44 162
PPM 095328     06:05:33.7 +25:26:28  8.2  0.85 163
PPM 095401     06:08:04.4 +24:44:49  9.4  0.26 163
05VA123        06:07:00.7 +24:39:07 15.7       163
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 0.3 sigma about the mid-time.
The median site spacing is 24.4 km RECON observability=1.0 and success probability=7.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 04:07:56 -37.4 Dark Down 46.4 108.5 Up 03:52:56 - 04:22:56 6602
Peachland 04:07:57 -37.2 Dark Down 46.3 107.6 Up 03:52:57 - 04:22:57 6566
Summerland 04:07:58 -37.2 Dark Down 46.4 107.5 Up 03:52:58 - 04:22:58 6550
Penticton 04:07:58 -37.3 Dark Down 46.5 107.6 Up 03:52:58 - 04:22:58 6542
Victoria 04:08:08 -35.0 Dark Down 44.4 103.0 Up 03:53:08 - 04:23:08 6536
Oliver 04:07:58 -37.4 Dark Down 46.6 107.2 Up 03:52:58 - 04:22:58 6510
Anarchist Mountain Observatory 04:07:59 -37.5 Dark Down 46.8 107.2 Up 03:52:59 - 04:22:59 6490
Tonasket 04:07:59 -37.5 Dark Down 46.8 106.9 Up 03:52:59 - 04:22:59 6463
Okanogan 04:08:00 -37.5 Dark Down 46.8 106.4 Up 03:53:00 - 04:23:00 6436
Brewster 04:08:01 -37.4 Dark Down 46.8 105.9 Up 03:53:01 - 04:23:01 6415
Manson/Chelan 04:08:03 -37.2 Dark Down 46.6 105.4 Up 03:53:03 - 04:23:03 6404
Entiat 04:08:04 -37.1 Dark Down 46.6 105.1 Up 03:53:04 - 04:23:04 6386
Wenatchee 04:08:05 -37.1 Dark Down 46.6 104.7 Up 03:53:05 - 04:23:05 6364
Ellensburg 04:08:05 -37.0 Dark Down 46.6 104.1 Up 03:53:05 - 04:23:05 6331
Yakima 04:08:07 -37.0 Dark Down 46.7 103.7 Up 03:53:07 - 04:23:07 6294
Toppenish/White Swan 04:08:07 -37.2 Dark Down 46.8 103.6 Up 03:53:07 - 04:23:07 6270
Pasco 04:08:05 -38.0 Dark Down 47.7 104.6 Up 03:53:05 - 04:23:05 6229
Goldendale 04:08:10 -36.9 Dark Down 46.7 102.7 Up 03:53:10 - 04:23:10 6228
The Dalles 04:08:10 -36.7 Dark Down 46.5 102.1 Up 03:53:10 - 04:23:10 6215
PNWRO 04:08:04 -38.2 Dark Down 47.9 104.6 Up 03:53:04 - 04:23:04 6201
Maupin 04:08:11 -36.8 Dark Down 46.7 101.8 Up 03:53:11 - 04:23:11 6174
Sisters 04:08:15 -36.5 Dark Down 46.5 100.4 Up 03:53:15 - 04:23:15 6103
Redmond 04:08:13 -36.8 Dark Down 46.8 100.8 Up 03:53:13 - 04:23:13 6091
Bend 04:08:14 -36.7 Dark Down 46.7 100.4 Up 03:53:14 - 04:23:14 6074
Oregon Observatory 04:08:14 -36.6 Dark Down 46.7 100.1 Up 03:53:14 - 04:23:14 6061
La Pine/Gilchrist 04:08:15 -36.6 Dark Down 46.6 99.9 Up 03:53:15 - 04:23:15 6043
North Lake 04:08:15 -37.0 Dark Down 47.2 99.9 Up 03:53:15 - 04:23:15 5986
Paisley 04:08:16 -37.3 Dark Down 47.5 99.6 Up 03:53:16 - 04:23:16 5925
Klamath Falls 04:08:20 -36.4 Dark Down 46.7 98.1 Up 03:53:20 - 04:23:20 5910
Lakeview 04:08:16 -37.5 Dark Down 47.7 99.2 Up 03:53:16 - 04:23:16 5871
Cedarville 04:08:17 -37.6 Dark Down 48.0 98.6 Up 03:53:17 - 04:23:17 5803
Fall River/Burney 04:08:21 -36.7 Dark Down 47.1 97.2 Up 03:53:21 - 04:23:21 5787
Susanville 04:08:21 -37.3 Dark Down 47.8 97.1 Up 03:53:21 - 04:23:21 5706
Greenville 04:08:22 -37.1 Dark Down 47.6 96.5 Up 03:53:22 - 04:23:22 5687
Gimple 04:08:21 -37.2 Dark Down 47.6 96.6 Up 03:53:21 - 04:23:21 5684
Quincy 04:08:22 -37.1 Dark Down 47.6 96.3 Up 03:53:22 - 04:23:22 5667
Portola 04:08:22 -37.5 Dark Down 48.0 96.5 Up 03:53:22 - 04:23:22 5642
Reno 04:08:20 -38.0 Dark Down 48.5 96.7 Up 03:53:20 - 04:23:20 5600
Carson City 04:08:21 -38.0 Dark Down 48.6 96.3 Up 03:53:21 - 04:23:21 5564
Gardnerville 04:08:21 -38.0 Dark Down 48.6 96.1 Up 03:53:21 - 04:23:21 5538
Yerington 04:08:20 -38.5 Dark Down 49.1 96.6 Up 03:53:20 - 04:23:20 5528
Hawthorne 04:08:20 -38.9 Dark Down 49.5 96.4 Up 03:53:20 - 04:23:20 5469
Lee Vining 04:08:22 -38.5 Dark Down 49.2 95.4 Up 03:53:22 - 04:23:22 5425
Tonopah 04:08:17 -40.0 Dark Down 50.7 96.9 Up 03:53:17 - 04:23:17 5387
Bishop 04:08:21 -39.1 Dark Down 49.9 95.2 Up 03:53:21 - 04:23:21 5346
Niwot 04:07:41 -49.0 Dark Down 59.2 110.3 Up 03:52:41 - 04:22:41 5338
SwRI 04:07:41 -48.9 Dark Down 59.2 110.1 Up 03:52:41 - 04:22:41 5329
Beatty 04:08:18 -40.4 Dark Down 51.2 95.8 Up 03:53:18 - 04:23:18 5258
Indian Springs 04:08:15 -41.2 Dark Down 52.1 96.1 Up 03:53:15 - 04:23:15 5198
CPSLO 04:08:30 -37.2 Dark Down 48.2 91.4 Up 03:53:30 - 04:23:30 5198
Henderson 04:08:14 -41.8 Dark Down 52.7 95.9 Up 03:53:14 - 04:23:14 5127
Searchlight/Boulder City 04:08:16 -41.8 Dark Down 52.8 95.2 Up 03:53:16 - 04:23:16 5067
Patrick 04:08:13 -42.7 Dark Down 53.6 95.9 Up 03:53:13 - 04:23:13 5036
Laughlin/Bullhead City 04:08:15 -42.1 Dark Down 53.1 95.1 Up 03:53:15 - 04:23:15 5027
Wildwood 04:08:27 -38.8 Dark Down 49.9 91.2 Up 03:53:27 - 04:23:27 5019
Kingman/Dolan Springs 04:08:14 -42.5 Dark Down 53.5 95.5 Up 03:53:14 - 04:23:14 5017
Mohave Valley 04:08:15 -42.1 Dark Down 53.1 94.7 Up 03:53:15 - 04:23:15 4999
DCO 04:08:11 -43.3 Dark Down 54.2 95.9 Up 03:53:11 - 04:23:11 4987
Lake Havasu City 04:08:15 -42.3 Dark Down 53.4 94.3 Up 03:53:15 - 04:23:15 4952
Idyllwild 04:08:23 -40.4 Dark Down 51.5 91.9 Up 03:53:23 - 04:23:23 4933
Parker 04:08:16 -42.3 Dark Down 53.4 93.9 Up 03:53:16 - 04:23:16 4915
Blythe 04:08:17 -42.1 Dark Down 53.2 93.0 Up 03:53:17 - 04:23:17 4867
Calipatria 04:08:21 -41.3 Dark Down 52.5 91.8 Up 03:53:21 - 04:23:21 4840
George/Scottsdale 04:08:10 -44.3 Dark Down 55.4 94.9 Up 03:53:10 - 04:23:10 4812
Yuma 04:08:19 -42.0 Dark Down 53.2 91.8 Up 03:53:19 - 04:23:19 4772

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 05VA123, (2022/01/03 04:06UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 17.43 152
Alnath         05:26:17.5 +28:36:23  1.6  9.64 154
1 Gem          06:04:07.2 +23:15:46  4.2  1.44 162
PPM 095328     06:04:12.1 +25:26:37  8.2  0.85 163
PPM 095401     06:06:43.2 +24:45:03  9.4  0.26 163
05VA123        06:05:39.6 +24:39:19 15.7       163
Positions are for J2000

Event circumstances last updated at 2020/02/01 21:03:48 UT

Marc W. Buie, Southwest Research Institute

RECON