RECON: TNO occultation with 463368

Event between (463368) 12VU85 and star GA1060:02111269 with event index number of 2278728

Geocentric closest approach at 2022/12/25 12:12:41 UTC

J2000 position of star is 06:34:07.9 +16:17:28
Equinox of date position of star is 06:35:26.6 +16:16:19
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 152 degrees from the moon. Moon is 7% illuminated.
TNO apparent brightness V=20.8

[RECON map]
TNO is 22.8 AU from the Sun and 21.8 AU from the Earth.
The TNO is moving 23.7 km/sec on the sky relative to the star, or, 5.4 arcsec/hr.
The 1-sigma error in the time of the event is 244 seconds.
The 1-sigma cross-track error in the shadow position is 1898 km.
The sky-plane scale is 15799.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 8.8 sec chord
Diameter=85.3 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 463368, (2022/12/25 12:13UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:25.0 +07:24:34  0.4 13.02 140
Alhena         06:39:02.4 +16:22:40  1.9  0.87 153
PPM 122879     06:42:41.5 +16:22:27  5.9  1.74 154
PPM 122706     06:36:05.9 +16:21:43  7.9  0.18 153
463368         06:35:27.4 +16:16:18 16.3       153
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 3.7 sigma about the mid-time.
The median site spacing is 25.2 km RECON observability=1.0 and success probability=19.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 12:10:00 -26.4 Dark Down 23.8 266.2 Low 11:55:00 - 12:25:00 3168
Kamloops 12:10:14 -35.3 Dark Down 32.9 254.9 Up 11:55:14 - 12:25:14 2812
Kelowna 12:10:10 -34.8 Dark Down 32.5 256.1 Up 11:55:10 - 12:25:10 2759
Peachland 12:10:10 -35.0 Dark Down 32.7 255.9 Up 11:55:10 - 12:25:10 2745
Summerland 12:10:10 -35.0 Dark Down 32.7 256.1 Up 11:55:10 - 12:25:10 2734
Penticton 12:10:09 -34.9 Dark Down 32.6 256.2 Up 11:55:09 - 12:25:09 2731
Oliver 12:10:08 -35.0 Dark Down 32.7 256.5 Up 11:55:08 - 12:25:08 2701
Anarchist Mountain Observatory 12:10:08 -34.8 Dark Down 32.7 256.7 Up 11:55:08 - 12:25:08 2690
Tonasket 12:10:07 -34.9 Dark Down 32.8 256.9 Up 11:55:07 - 12:25:07 2663
Okanogan 12:10:06 -35.0 Dark Down 32.9 256.9 Up 11:55:06 - 12:25:06 2632
Brewster 12:10:06 -35.2 Dark Down 33.1 256.9 Up 11:55:06 - 12:25:06 2605
Victoria 12:10:13 -37.5 Dark Down 35.3 253.6 Up 11:55:13 - 12:25:13 2582
Manson/Chelan 12:10:05 -35.4 Dark Down 33.4 256.8 Up 11:55:05 - 12:25:05 2581
Wenatchee 12:10:04 -35.6 Dark Down 33.6 256.9 Up 11:55:04 - 12:25:04 2538
Ellensburg 12:10:04 -35.8 Dark Down 33.9 257.0 Up 11:55:04 - 12:25:04 2498
Yakima 12:10:03 -35.8 Dark Down 34.0 257.3 Up 11:55:03 - 12:25:03 2463
Toppenish/White Swan 12:10:02 -35.7 Dark Down 33.9 257.5 Up 11:55:02 - 12:25:02 2447
PNWRO 12:09:58 -34.7 Dark Down 33.0 259.0 Up 11:54:58 - 12:24:58 2441
Goldendale 12:10:01 -36.0 Dark Down 34.3 257.6 Up 11:55:01 - 12:25:01 2391
The Dalles 12:10:01 -36.3 Dark Down 34.6 257.4 Up 11:55:01 - 12:25:01 2365
Maupin 12:10:00 -36.2 Dark Down 34.7 257.8 Up 11:55:00 - 12:25:00 2330
Sisters 12:09:58 -36.6 Dark Down 35.2 258.0 Up 11:54:58 - 12:24:58 2243
Bend 12:09:57 -36.4 Dark Down 35.1 258.3 Up 11:54:57 - 12:24:57 2226
Dunrhomin 12:09:22 -24.3 Dark Down 23.6 271.8 Low 11:54:22 - 12:24:22 2210
Oregon Observatory 12:09:57 -36.5 Dark Down 35.2 258.3 Up 11:54:57 - 12:24:57 2208
CU-SBO 12:09:22 -24.4 Dark Down 23.6 271.9 Low 11:54:22 - 12:24:22 2185
North Lake 12:09:54 -36.2 Dark Down 34.9 259.2 Up 11:54:54 - 12:24:54 2160
Chiloquin 12:09:55 -36.9 Dark Down 35.8 258.9 Up 11:54:55 - 12:24:55 2081
Lakeview 12:09:51 -35.8 Dark Down 34.7 260.3 Up 11:54:51 - 12:24:51 2074
Klamath Falls 12:09:53 -36.8 Dark Down 35.8 259.2 Up 11:54:53 - 12:24:53 2051
Cedarville 12:09:49 -35.6 Dark Down 34.7 260.9 Up 11:54:49 - 12:24:49 2017
Fall River/Burney 12:09:50 -36.6 Dark Down 35.7 260.3 Up 11:54:50 - 12:24:50 1949
Susanville 12:09:47 -36.0 Dark Down 35.3 261.3 Up 11:54:47 - 12:24:47 1904
Gimple 12:09:46 -36.1 Dark Down 35.5 261.4 Up 11:54:46 - 12:24:46 1874
Greenville 12:09:47 -36.2 Dark Down 35.5 261.3 Up 11:54:47 - 12:24:47 1873
Quincy 12:09:46 -36.2 Dark Down 35.5 261.5 Up 11:54:46 - 12:24:46 1854
Portola 12:09:45 -35.8 Dark Down 35.2 261.9 Up 11:54:45 - 12:24:45 1851
Reno 12:09:43 -35.3 Dark Down 34.8 262.5 Up 11:54:43 - 12:24:43 1839
Carson City 12:09:42 -35.3 Dark Down 34.8 262.8 Up 11:54:42 - 12:24:42 1805
Yerington 12:09:41 -34.8 Dark Down 34.3 263.4 Up 11:54:41 - 12:24:41 1799
Gardnerville 12:09:41 -35.3 Dark Down 34.8 263.0 Up 11:54:41 - 12:24:41 1783
Hawthorne 12:09:38 -34.4 Dark Down 34.0 264.0 Up 11:54:38 - 12:24:38 1766
Tonopah 12:09:34 -33.2 Dark Down 32.9 265.3 Up 11:54:34 - 12:24:34 1750
Lee Vining 12:09:38 -34.7 Dark Down 34.4 264.1 Up 11:54:38 - 12:24:38 1703
Bishop 12:09:35 -34.1 Dark Down 33.9 265.0 Up 11:54:35 - 12:24:35 1660
Beatty 12:09:31 -32.8 Dark Down 32.7 266.3 Up 11:54:31 - 12:24:31 1649
Indian Springs 12:09:28 -31.9 Dark Down 31.8 267.2 Up 11:54:28 - 12:24:28 1641
Henderson 12:09:26 -31.3 Dark Down 31.3 267.9 Up 11:54:26 - 12:24:26 1604
Patrick 12:09:22 -30.3 Dark Down 30.4 269.0 Up 11:54:22 - 12:24:22 1569
Kingman/Dolan Springs 12:09:22 -30.4 Dark Down 30.6 269.0 Up 11:54:22 - 12:24:22 1543
Laughlin/Bullhead City 12:09:23 -30.8 Dark Down 31.0 268.7 Up 11:54:23 - 12:24:23 1529
Mohave Valley 12:09:22 -30.8 Dark Down 31.0 268.8 Up 11:54:22 - 12:24:22 1503
Lake Havasu City 12:09:21 -30.5 Dark Down 30.8 269.2 Up 11:54:21 - 12:24:21 1470
George/Scottsdale 12:09:15 -28.4 Dark Down 28.8 271.0 Low 11:54:15 - 12:24:15 1450
Parker 12:09:20 -30.5 Dark Down 30.8 269.5 Up 11:54:20 - 12:24:20 1436
Idyllwild 12:09:24 -32.4 Dark Down 32.8 268.3 Up 11:54:24 - 12:24:24 1344
Wildwood 12:09:28 -34.0 Dark Down 34.3 267.0 Up 11:54:28 - 12:24:28 1338
Calipatria 12:09:20 -31.3 Dark Down 31.8 269.4 Up 11:54:20 - 12:24:20 1309
Yuma 12:09:18 -30.5 Dark Down 31.1 270.1 Up 11:54:18 - 12:24:18 1287

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, (2022/12/25 12:13UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 13.02 140
Alhena         06:37:42.8 +16:23:57  1.9  0.87 153
PPM 122879     06:41:21.9 +16:23:51  5.9  1.74 154
PPM 122706     06:34:46.3 +16:22:54  7.9  0.18 153
463368         06:34:07.9 +16:17:28 16.3       152
Positions are for J2000

Event circumstances last updated at 2022/10/02 04:12:10 UT

Marc W. Buie, Southwest Research Institute

RECON