RECON: TNO occultation with 10WG9

Event between 10WG9 and star GA1200:02474741 with event index number of 1201369

Geocentric closest approach at 2022/12/27 11:50:00 UTC

J2000 position of star is 06:21:40.7 +31:00:32
Equinox of date position of star is 06:22:55.9 +30:59:54
Stellar brightness G=15.1, use SENSEUP=128
Star is 122 degrees from the moon. Moon is 23% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 26.4 AU from the Sun and 25.5 AU from the Earth.
The TNO is moving 28.7 km/sec on the sky relative to the star, or, 5.6 arcsec/hr.
The 1-sigma error in the time of the event is 84 seconds.
The 1-sigma cross-track error in the shadow position is 5239 km.
The sky-plane scale is 18463.1 km/arcsec.

The TNO has an absolute magnitude Hv=8.2
Diameter=134.9 km assuming a 5% albedo -- 4.7 sec chord
Diameter=55.1 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10WG9, (2022/12/27 11:50UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:43.3 +27:58:08  1.1 18.41 141
Alnath         05:27:44.8 +28:37:29  1.6 12.24 110
PPM 095824     06:22:39.9 +29:31:42  6.3  1.47 122
PPM 071511     06:21:43.2 +30:21:26  8.4  0.71 122
PPM 071534     06:23:17.1 +31:00:08  9.9  0.03 122
10WG9          06:23:09.7 +30:59:47 15.1       123
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 11.0 km RECON observability=1.0 and success probability=4.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 11:48:26 -38.4 Dark Down 43.2 269.0 Up 11:40:55 - 11:55:57 6471
Niwot 11:47:45 -28.5 Dark Down 32.1 285.5 Up 11:40:14 - 11:55:16 6448
Penticton 11:48:25 -38.5 Dark Down 43.3 269.2 Up 11:40:54 - 11:55:56 6440
Summerland 11:48:26 -38.6 Dark Down 43.4 269.0 Up 11:40:55 - 11:55:57 6440
SwRI 11:47:44 -28.6 Dark Down 32.1 285.5 Up 11:40:13 - 11:55:15 6436
Okanagan Falls 11:48:25 -38.6 Dark Down 43.3 269.3 Up 11:40:54 - 11:55:56 6427
Oliver 11:48:24 -38.6 Dark Down 43.3 269.5 Up 11:40:53 - 11:55:55 6417
Anarchist Mountain Observatory 11:48:24 -38.5 Dark Down 43.2 269.8 Up 11:40:53 - 11:55:55 6413
Oroville 11:48:23 -38.6 Dark Down 43.3 269.8 Up 11:40:52 - 11:55:54 6405
Tonasket 11:48:23 -38.6 Dark Down 43.3 270.0 Up 11:40:52 - 11:55:54 6390
Okanogan 11:48:22 -38.7 Dark Down 43.4 270.2 Up 11:40:51 - 11:55:53 6361
Brewster 11:48:21 -38.9 Dark Down 43.5 270.4 Up 11:40:50 - 11:55:52 6334
Manson/Chelan 11:48:21 -39.2 Dark Down 43.7 270.3 Up 11:40:50 - 11:55:52 6305
Entiat 11:48:20 -39.3 Dark Down 43.8 270.4 Up 11:40:49 - 11:55:51 6287
Wenatchee 11:48:20 -39.4 Dark Down 43.9 270.6 Up 11:40:49 - 11:55:51 6266
Pasco 11:48:15 -38.7 Dark Down 43.0 272.5 Up 11:40:44 - 11:55:46 6236
PNWRO 11:48:14 -38.6 Dark Down 42.8 272.9 Up 11:40:43 - 11:55:45 6229
Ellensburg 11:48:19 -39.6 Dark Down 44.0 270.8 Up 11:40:48 - 11:55:50 6228
George/Umatilla 11:48:14 -38.9 Dark Down 43.1 272.7 Up 11:40:43 - 11:55:45 6204
Yakima 11:48:17 -39.6 Dark Down 44.0 271.2 Up 11:40:46 - 11:55:48 6199
Toppenish/White Swan 11:48:17 -39.6 Dark Down 43.9 271.5 Up 11:40:46 - 11:55:48 6191
Goldendale 11:48:15 -39.9 Dark Down 44.2 271.8 Up 11:40:44 - 11:55:46 6134
The Dalles 11:48:15 -40.2 Dark Down 44.4 271.7 Up 11:40:44 - 11:55:46 6102
Maupin 11:48:14 -40.2 Dark Down 44.3 272.2 Up 11:40:43 - 11:55:45 6077
Madras/Culver 11:48:13 -40.3 Dark Down 44.3 272.7 Up 11:40:42 - 11:55:44 6035
Redmond 11:48:11 -40.4 Dark Down 44.4 273.0 Up 11:40:40 - 11:55:42 6007
Sisters 11:48:12 -40.6 Dark Down 44.7 272.7 Up 11:40:41 - 11:55:43 5992
Bend 11:48:11 -40.5 Dark Down 44.5 273.1 Up 11:40:40 - 11:55:42 5986
Oregon Observatory 11:48:11 -40.6 Dark Down 44.5 273.2 Up 11:40:40 - 11:55:42 5967
La Pine/Gilchrist 11:48:10 -40.7 Dark Down 44.6 273.4 Up 11:40:39 - 11:55:41 5949
North Lake 11:48:08 -40.3 Dark Down 44.1 274.2 Up 11:40:37 - 11:55:39 5944
Paisley 11:48:06 -40.1 Dark Down 43.8 274.9 Up 11:40:35 - 11:55:37 5919
Lakeview 11:48:04 -40.0 Dark Down 43.6 275.5 Up 11:40:33 - 11:55:35 5890
Chiloquin 11:48:07 -41.0 Dark Down 44.8 274.3 Up 11:40:36 - 11:55:38 5851
Cedarville 11:48:02 -39.9 Dark Down 43.4 276.3 Up 11:40:31 - 11:55:33 5849
Klamath Falls 11:48:06 -41.0 Dark Down 44.7 274.6 Up 11:40:35 - 11:55:37 5829
Tulelake 11:48:05 -40.8 Dark Down 44.4 275.1 Up 11:40:34 - 11:55:36 5822
Fall River/Burney 11:48:03 -40.8 Dark Down 44.3 276.0 Up 11:40:32 - 11:55:34 5757
Susanville 11:48:00 -40.3 Dark Down 43.7 277.0 Up 11:40:29 - 11:55:31 5743
Tonopah 11:47:49 -37.7 Dark Down 40.7 280.9 Up 11:40:18 - 11:55:20 5727
Reno 11:47:56 -39.7 Dark Down 42.9 278.3 Up 11:40:25 - 11:55:27 5716
Gimple 11:47:59 -40.5 Dark Down 43.8 277.2 Up 11:40:28 - 11:55:30 5712
Greenville 11:47:59 -40.5 Dark Down 43.9 277.1 Up 11:40:28 - 11:55:30 5708
Portola 11:47:58 -40.2 Dark Down 43.5 277.7 Up 11:40:27 - 11:55:29 5706
Yerington 11:47:54 -39.2 Dark Down 42.4 279.1 Up 11:40:23 - 11:55:25 5705
DCO 11:47:36 -34.3 Dark Down 36.9 285.0 Up 11:40:05 - 11:55:07 5703
Hawthorne 11:47:52 -38.8 Dark Down 41.9 279.8 Up 11:40:21 - 11:55:23 5694
Quincy 11:47:59 -40.5 Dark Down 43.8 277.3 Up 11:40:28 - 11:55:30 5693
Patrick 11:47:38 -34.9 Dark Down 37.5 284.5 Up 11:40:07 - 11:55:09 5690
Carson City 11:47:55 -39.7 Dark Down 42.9 278.6 Up 11:40:24 - 11:55:26 5689
Indian Springs 11:47:43 -36.4 Dark Down 39.2 282.8 Up 11:40:12 - 11:55:14 5689
Henderson 11:47:41 -35.8 Dark Down 38.6 283.6 Up 11:40:10 - 11:55:12 5682
Gardnerville 11:47:55 -39.6 Dark Down 42.8 278.9 Up 11:40:24 - 11:55:26 5673
Kingman/Dolan Springs 11:47:37 -35.0 Dark Down 37.6 284.6 Up 11:40:06 - 11:55:08 5664
Beatty 11:47:46 -37.3 Dark Down 40.1 282.1 Up 11:40:15 - 11:55:17 5661
Searchlight/Boulder City 11:47:39 -35.7 Dark Down 38.4 284.0 Up 11:40:08 - 11:55:10 5641
Laughlin/Bullhead City 11:47:38 -35.4 Dark Down 38.0 284.4 Up 11:40:07 - 11:55:09 5636
Lee Vining 11:47:51 -39.2 Dark Down 42.2 280.1 Up 11:40:20 - 11:55:22 5627
Bishop 11:47:49 -38.6 Dark Down 41.5 280.9 Up 11:40:18 - 11:55:20 5616
Mohave Valley 11:47:37 -35.4 Dark Down 38.0 284.6 Up 11:40:06 - 11:55:08 5615
Lake Havasu City 11:47:36 -35.1 Dark Down 37.7 285.0 Up 11:40:05 - 11:55:07 5597
Lone Pine 11:47:46 -38.3 Dark Down 41.1 281.8 Up 11:40:15 - 11:55:17 5573
Parker 11:47:36 -35.1 Dark Down 37.6 285.3 Up 11:40:05 - 11:55:07 5571
Blythe 11:47:34 -35.3 Dark Down 37.7 285.6 Up 11:40:03 - 11:55:05 5515
Yuma 11:47:32 -35.2 Dark Down 37.5 286.2 Up 11:40:01 - 11:55:03 5440
Calipatria 11:47:34 -36.0 Dark Down 38.3 285.6 Up 11:40:03 - 11:55:05 5428
Idyllwild 11:47:37 -37.0 Dark Down 39.4 284.7 Up 11:40:06 - 11:55:08 5415
Wildwood 11:47:40 -38.6 Dark Down 41.0 283.6 Up 11:40:09 - 11:55:11 5348
CPSLO 11:47:46 -40.4 Dark Down 42.9 281.8 Up 11:40:15 - 11:55:17 5342

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 10WG9, (2022/12/27 11:50UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 18.41 141
Alnath         05:26:17.5 +28:36:23  1.6 12.24 110
PPM 095824     06:21:11.9 +29:32:26  6.3  1.47 122
PPM 071511     06:20:14.6 +30:22:08  8.4  0.71 122
PPM 071534     06:21:48.1 +31:00:53  9.9  0.03 122
10WG9          06:21:40.7 +31:00:32 15.1       122
Positions are for J2000

Event circumstances last updated at 2019/06/08 04:32:29 UT

Marc W. Buie, Southwest Research Institute

RECON