RECON: TNO occultation with 463368

Event between (463368) 12VU85 and star GA1060:01825634 with event index number of 1128628

Geocentric closest approach at 2021/12/12 09:00:26 UTC

J2000 position of star is 06:21:16.9 +17:21:28
Equinox of date position of star is 06:22:24.7 +17:20:51
Stellar brightness G=15.2, use SENSEUP=128
Star is 89 degrees from the moon. Moon is 63% illuminated.
TNO apparent brightness V=20.9

[RECON map]
TNO is 23.1 AU from the Sun and 22.1 AU from the Earth.
The TNO is moving 23.0 km/sec on the sky relative to the star, or, 5.1 arcsec/hr.
The 1-sigma error in the time of the event is 529 seconds.
The 1-sigma cross-track error in the shadow position is 3929 km.
The sky-plane scale is 16064.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 9.1 sec chord
Diameter=85.3 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 463368, (2021/12/12 09:00UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:21.6 +07:24:34  0.4 11.81  82
Alhena         06:38:58.8 +16:22:43  1.9  4.05  93
PPM 122270     06:20:18.4 +17:18:53  6.1  0.54  88
PPM 122334     06:22:42.8 +17:45:05  7.7  0.41  89
PPM 122336     06:22:44.3 +17:16:55  9.5  0.08  89
463368         06:22:33.5 +17:20:46 15.2        89
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 1.7 sigma about the mid-time.
The median site spacing is 21.8 km RECON observability=1.0 and success probability=7.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 09:00:12 -60.0 Dark Down 57.4 182.9 Up 08:45:12 - 09:15:12 6513
Summerland 09:00:13 -60.3 Dark Down 57.7 182.4 Up 08:45:13 - 09:15:13 6486
Penticton 09:00:12 -60.4 Dark Down 57.8 182.6 Up 08:45:12 - 09:15:12 6480
Okanagan Falls 09:00:13 -60.5 Dark Down 58.0 182.6 Up 08:45:13 - 09:15:13 6462
Oliver 09:00:13 -60.7 Dark Down 58.2 182.6 Up 08:45:13 - 09:15:13 6446
Anarchist Mountain Observatory 09:00:12 -60.7 Dark Down 58.3 183.0 Up 08:45:12 - 09:15:12 6429
Oroville 09:00:12 -60.8 Dark Down 58.4 182.9 Up 08:45:12 - 09:15:12 6423
Tonasket 09:00:12 -61.0 Dark Down 58.6 182.9 Up 08:45:12 - 09:15:12 6400
Okanogan 09:00:13 -61.3 Dark Down 59.0 182.7 Up 08:45:13 - 09:15:13 6369
Brewster 09:00:14 -61.6 Dark Down 59.2 182.3 Up 08:45:14 - 09:15:14 6344
Manson/Chelan 09:00:14 -62.0 Dark Down 59.5 181.6 Up 08:45:14 - 09:15:14 6326
Entiat 09:00:15 -62.2 Dark Down 59.7 181.5 Up 08:45:15 - 09:15:15 6305
Wenatchee 09:00:15 -62.4 Dark Down 59.9 181.3 Up 08:45:15 - 09:15:15 6281
Ellensburg 09:00:16 -62.8 Dark Down 60.4 180.9 Up 08:45:16 - 09:15:16 6242
Yakima 09:00:17 -63.2 Dark Down 60.8 180.9 Up 08:45:17 - 09:15:17 6203
Toppenish/White Swan 09:00:16 -63.3 Dark Down 61.0 181.3 Up 08:45:16 - 09:15:16 6181
Pasco 09:00:12 -62.9 Dark Down 61.1 183.7 Up 08:45:12 - 09:15:12 6164
PNWRO 09:00:11 -63.0 Dark Down 61.3 184.2 Up 08:45:11 - 09:15:11 6139
George/Umatilla 09:00:13 -63.2 Dark Down 61.4 183.3 Up 08:45:13 - 09:15:13 6132
Goldendale 09:00:18 -63.9 Dark Down 61.5 180.4 Up 08:45:18 - 09:15:18 6130
The Dalles 09:00:19 -64.2 Dark Up 61.8 179.7 Up 08:45:19 - 09:15:19 6110
Maupin 09:00:19 -64.5 Dark Up 62.2 179.9 Up 08:45:19 - 09:15:19 6068
Madras/Culver 09:00:19 -65.0 Dark Up 62.7 179.8 Up 08:45:19 - 09:15:19 6015
Sisters 09:00:20 -65.5 Dark Up 63.1 178.9 Up 08:45:20 - 09:15:20 5984
Redmond 09:00:19 -65.3 Dark Up 63.1 179.7 Up 08:45:19 - 09:15:19 5980
Bend 09:00:19 -65.5 Dark Up 63.3 179.4 Up 08:45:19 - 09:15:19 5959
Oregon Observatory 09:00:20 -65.7 Dark Up 63.5 179.2 Up 08:45:20 - 09:15:20 5943
La Pine/Gilchrist 09:00:20 -65.9 Dark Up 63.7 179.0 Up 08:45:20 - 09:15:20 5923
North Lake 09:00:18 -66.0 Dark Up 64.1 180.3 Up 08:45:18 - 09:15:18 5876
Paisley 09:00:17 -66.3 Dark Down 64.7 181.1 Up 08:45:17 - 09:15:17 5819
Chiloquin 09:00:22 -67.0 Dark Up 64.8 178.2 Up 08:45:22 - 09:15:22 5814
Klamath Falls 09:00:21 -67.2 Dark Up 65.1 178.4 Up 08:45:21 - 09:15:21 5779
Lakeview 09:00:16 -66.6 Dark Down 65.2 181.6 Up 08:45:16 - 09:15:16 5767
Tulelake 09:00:21 -67.3 Dark Up 65.4 179.0 Up 08:45:21 - 09:15:21 5750
Cedarville 09:00:16 -67.0 Dark Down 65.8 182.0 Up 08:45:16 - 09:15:16 5700
Fall River/Burney 09:00:21 -68.0 Dark Up 66.3 179.2 Up 08:45:21 - 09:15:21 5658
Susanville 09:00:18 -68.1 Dark Up 66.9 180.9 Up 08:45:18 - 09:15:18 5589
Greenville 09:00:20 -68.4 Dark Up 67.2 180.2 Up 08:45:20 - 09:15:20 5563
Gimple 09:00:19 -68.4 Dark Up 67.2 180.4 Up 08:45:19 - 09:15:19 5562
Quincy 09:00:20 -68.6 Dark Up 67.4 180.3 Up 08:45:20 - 09:15:20 5542
Portola 09:00:18 -68.4 Dark Down 67.5 181.4 Up 08:45:18 - 09:15:18 5527
Niwot 08:59:22 -58.7 Dark Down 63.5 215.3 Up 08:44:22 - 09:14:22 5527
SwRI 08:59:22 -58.8 Dark Down 63.7 215.2 Up 08:44:22 - 09:14:22 5516
Reno 09:00:16 -68.2 Dark Down 67.8 183.1 Up 08:45:16 - 09:15:16 5496
Carson City 09:00:16 -68.5 Dark Down 68.1 183.2 Up 08:45:16 - 09:15:16 5459
Yerington 09:00:13 -68.3 Dark Down 68.3 184.8 Up 08:45:13 - 09:15:13 5436
Gardnerville 09:00:15 -68.6 Dark Down 68.4 183.3 Up 08:45:15 - 09:15:15 5434
Hawthorne 09:00:11 -68.2 Dark Down 68.7 186.3 Up 08:45:11 - 09:15:11 5385
Tonopah 09:00:06 -67.7 Dark Down 69.0 190.1 Up 08:45:06 - 09:15:06 5331
Lee Vining 09:00:13 -68.9 Dark Down 69.3 185.1 Up 08:45:13 - 09:15:13 5329
Bishop 09:00:11 -68.8 Dark Down 69.9 187.3 Up 08:45:11 - 09:15:11 5263
Beatty 09:00:04 -68.1 Dark Down 70.1 191.9 Up 08:45:04 - 09:15:04 5208
Lone Pine 09:00:10 -69.1 Dark Down 70.6 188.5 Up 08:45:10 - 09:15:10 5182
Indian Springs 09:00:01 -67.5 Dark Down 70.2 195.1 Up 08:45:01 - 09:15:01 5170
Henderson 08:59:58 -67.3 Dark Down 70.6 197.4 Up 08:44:58 - 09:14:58 5112
CPSLO 09:00:20 -71.5 Dark Up 72.0 181.2 Up 08:45:20 - 09:15:20 5059
Searchlight/Boulder City 08:59:57 -67.5 Dark Down 71.1 198.1 Up 08:44:57 - 09:14:57 5051
Patrick 08:59:54 -66.8 Dark Down 70.9 201.0 Up 08:44:54 - 09:14:54 5042
Kingman/Dolan Springs 08:59:54 -67.0 Dark Down 71.1 200.7 Up 08:44:54 - 09:14:54 5019
Laughlin/Bullhead City 08:59:56 -67.4 Dark Down 71.3 199.3 Up 08:44:56 - 09:14:56 5018
DCO 08:59:51 -66.4 Dark Down 70.9 203.3 Up 08:44:51 - 09:14:51 5008
Mohave Valley 08:59:56 -67.5 Dark Down 71.6 199.6 Up 08:44:56 - 09:14:56 4990
Lake Havasu City 08:59:55 -67.5 Dark Down 71.9 200.7 Up 08:44:55 - 09:14:55 4946
Wildwood 09:00:12 -70.8 Dark Down 73.1 188.0 Up 08:45:12 - 09:15:12 4920
Parker 08:59:55 -67.6 Dark Down 72.2 201.2 Up 08:44:55 - 09:14:55 4909
Idyllwild 09:00:05 -69.6 Dark Down 73.2 194.2 Up 08:45:05 - 09:15:05 4874
Blythe 08:59:56 -68.1 Dark Down 72.8 200.9 Up 08:44:56 - 09:14:56 4854
Calipatria 09:00:00 -69.0 Dark Down 73.5 198.6 Up 08:45:00 - 09:15:00 4804
Yuma 08:59:56 -68.4 Dark Down 73.6 201.9 Up 08:44:56 - 09:14:56 4755

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 463368, (2021/12/12 09:00UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 11.81  82
Alhena         06:37:42.8 +16:23:57  1.9  4.05  93
PPM 122270     06:19:01.8 +17:19:31  6.1  0.54  88
PPM 122334     06:21:25.9 +17:45:48  7.7  0.41  89
PPM 122336     06:21:27.7 +17:17:37  9.5  0.08  89
463368         06:21:16.9 +17:21:28 15.2        89
Positions are for J2000

Event circumstances last updated at 2019/06/08 02:46:21 UT

Marc W. Buie, Southwest Research Institute

RECON