RECON: TNO occultation with 463368

Event between (463368) 12VU85 and star GA1020:02610843 with event index number of 2279135

Geocentric closest approach at 2024/12/07 05:57:05 UTC

J2000 position of star is 07:06:55.3 +13:55:45
Equinox of date position of star is 07:08:10.7 +13:53:36
Stellar brightness G=14.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 137 degrees from the moon. Moon is 35% illuminated.
TNO apparent brightness V=20.8

[RECON map]
TNO is 22.2 AU from the Sun and 21.3 AU from the Earth.
The TNO is moving 19.6 km/sec on the sky relative to the star, or, 4.6 arcsec/hr.
The 1-sigma error in the time of the event is 500 seconds.
The 1-sigma cross-track error in the shadow position is 3445 km.
The sky-plane scale is 15458.3 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 10.7 sec chord
Diameter=85.3 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 463368, (2024/12/07 05:57UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:50.5 +27:57:50  1.1 16.68 145
Alhena         06:39:09.1 +16:22:33  1.9  7.47 130
45 Gem         07:09:47.8 +15:53:19  6.4  2.03 138
PPM 123518     07:07:29.7 +13:56:45  8.5  0.21 137
PPM 123534     07:08:18.3 +13:55:47 10.0  0.04 137
463368         07:08:19.8 +13:53:20 14.5       138
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 1.8 sigma about the mid-time.
The median site spacing is 22.9 km RECON observability=1.0 and success probability=13.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 05:59:49 -54.4 Dark Down 29.2 104.3 Low 05:44:49 - 06:14:49 453
Kelowna 05:59:51 -55.4 Dark Down 30.0 104.6 Low 05:44:51 - 06:14:51 377
Peachland 05:59:52 -55.3 Dark Down 29.8 104.3 Low 05:44:52 - 06:14:52 375
Summerland 05:59:53 -55.4 Dark Down 29.9 104.3 Low 05:44:53 - 06:14:53 362
Penticton 05:59:53 -55.5 Dark Down 30.0 104.4 Low 05:44:53 - 06:14:53 355
Victoria 06:00:03 -54.2 Dark Up 27.8 100.7 Low 05:45:03 - 06:15:03 348
Oliver 05:59:54 -55.8 Dark Down 30.1 104.2 Up 05:44:54 - 06:14:54 328
Sleaford 05:59:15 -58.7 Dark Down 37.0 118.5 Up 05:44:15 - 06:14:15 321
Anarchist Mountain Observatory 05:59:54 -56.0 Dark Down 30.2 104.3 Up 05:44:54 - 06:14:54 312
Tonasket 05:59:56 -56.1 Dark Down 30.3 104.0 Up 05:44:56 - 06:14:56 290
Okanogan 05:59:57 -56.3 Dark Down 30.3 103.7 Up 05:44:57 - 06:14:57 267
Brewster 05:59:59 -56.4 Dark Down 30.2 103.4 Up 05:44:59 - 06:14:59 250
Manson/Chelan 06:00:00 -56.3 Dark Down 30.0 103.0 Up 05:45:00 - 06:15:00 241
Wenatchee 06:00:02 -56.5 Dark Down 30.0 102.6 Up 05:45:02 - 06:15:02 207
Ellensburg 06:00:04 -56.7 Dark Down 30.0 102.2 Low 05:45:04 - 06:15:04 180
Yakima 06:00:06 -56.9 Dark Down 30.0 101.9 Up 05:45:06 - 06:15:06 148
Toppenish/White Swan 06:00:06 -57.1 Dark Down 30.2 101.9 Up 05:45:06 - 06:15:06 128
Goldendale 06:00:09 -57.2 Dark Down 30.0 101.3 Up 05:45:09 - 06:15:09 93
The Dalles 06:00:11 -57.1 Dark Down 29.8 100.9 Low 05:45:11 - 06:15:11 81
PNWRO 06:00:05 -58.2 Dark Down 31.3 102.9 Up 05:45:05 - 06:15:05 71
Maupin 06:00:12 -57.4 Dark Down 30.0 100.7 Low 05:45:12 - 06:15:12 46
Sisters 06:00:17 -57.6 Dark Up 29.8 99.9 Low 05:45:17 - 06:15:17 -14
Bend 06:00:17 -57.9 Dark Up 30.0 99.9 Up 05:45:17 - 06:15:17 -39
Oregon Observatory 06:00:18 -57.9 Dark Up 30.0 99.7 Low 05:45:18 - 06:15:18 -50
North Lake 06:00:19 -58.6 Dark Up 30.5 99.8 Up 05:45:19 - 06:15:19 -113
Chiloquin 06:00:24 -58.4 Dark Up 29.9 98.7 Low 05:45:24 - 06:15:24 -150
Klamath Falls 06:00:25 -58.6 Dark Up 30.0 98.6 Up 05:45:25 - 06:15:25 -180
Lakeview 06:00:22 -59.5 Dark Up 31.1 99.6 Up 05:45:22 - 06:15:22 -212
Cedarville 06:00:24 -60.0 Dark Up 31.3 99.3 Up 05:45:24 - 06:15:24 -271
Fall River/Burney 06:00:28 -59.4 Dark Up 30.5 98.2 Up 05:45:28 - 06:15:28 -287
Susanville 06:00:29 -60.2 Dark Up 31.1 98.3 Up 05:45:29 - 06:15:29 -356
Greenville 06:00:31 -60.1 Dark Up 31.0 98.0 Up 05:45:31 - 06:15:31 -373
Gimple 06:00:30 -60.2 Dark Up 31.0 98.0 Up 05:45:30 - 06:15:30 -375
Quincy 06:00:31 -60.2 Dark Up 31.0 97.9 Up 05:45:31 - 06:15:31 -391
Portola 06:00:31 -60.6 Dark Up 31.4 98.1 Up 05:45:31 - 06:15:31 -412
Reno 06:00:30 -61.2 Dark Up 31.9 98.4 Up 05:45:30 - 06:15:30 -448
Carson City 06:00:32 -61.4 Dark Up 32.0 98.2 Up 05:45:32 - 06:15:32 -480
Gardnerville 06:00:32 -61.5 Dark Up 32.0 98.1 Up 05:45:32 - 06:15:32 -502
Yerington 06:00:31 -61.9 Dark Up 32.5 98.5 Up 05:45:31 - 06:15:31 -511
Hawthorne 06:00:31 -62.5 Dark Up 33.0 98.6 Up 05:45:31 - 06:15:31 -563
Lee Vining 06:00:34 -62.4 Dark Up 32.7 97.9 Up 05:45:34 - 06:15:34 -602
Tonopah 06:00:30 -63.7 Dark Down 34.1 99.3 Up 05:45:30 - 06:15:30 -634
Bishop 06:00:35 -63.2 Dark Up 33.3 98.0 Up 05:45:35 - 06:15:35 -671
Dunrhomin 05:59:51 -69.2 Dark Down 42.5 110.4 Up 05:44:51 - 06:14:51 -679
CU-SBO 05:59:52 -69.4 Dark Down 42.5 110.1 Up 05:44:52 - 06:14:52 -700
Beatty 06:00:32 -64.5 Dark Down 34.7 98.8 Up 05:45:32 - 06:15:32 -748
Indian Springs 06:00:31 -65.4 Dark Down 35.6 99.3 Up 05:45:31 - 06:15:31 -801
Henderson 06:00:31 -66.2 Dark Down 36.2 99.4 Up 05:45:31 - 06:15:31 -865
Patrick 06:00:30 -67.3 Dark Down 37.2 99.7 Up 05:45:30 - 06:15:30 -947
Laughlin/Bullhead City 06:00:32 -66.9 Dark Down 36.7 99.1 Up 05:45:32 - 06:15:32 -954
Kingman/Dolan Springs 06:00:31 -67.3 Dark Down 37.1 99.4 Up 05:45:31 - 06:15:31 -963
Wildwood 06:00:45 -64.3 Dark Up 33.6 95.8 Up 05:45:45 - 06:15:45 -965
Mohave Valley 06:00:33 -67.0 Dark Down 36.7 98.9 Up 05:45:33 - 06:15:33 -980
Lake Havasu City 06:00:33 -67.4 Dark Down 37.0 98.8 Up 05:45:33 - 06:15:33 -1023
Idyllwild 06:00:42 -65.9 Dark Up 35.2 96.7 Up 05:45:42 - 06:15:42 -1040
Parker 06:00:34 -67.6 Dark Down 37.1 98.5 Up 05:45:34 - 06:15:34 -1056
Calipatria 06:00:41 -67.0 Dark Down 36.2 97.0 Up 05:45:41 - 06:15:41 -1125
George/Scottsdale 06:00:29 -69.5 Dark Down 39.1 99.8 Up 05:45:29 - 06:15:29 -1149
Yuma 06:00:39 -67.9 Dark Down 37.0 97.2 Up 05:45:39 - 06:15:39 -1186

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, (2024/12/07 05:57UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 16.68 145
Alhena         06:37:42.8 +16:23:57  1.9  7.47 130
45 Gem         07:08:22.0 +15:55:48  6.4  2.03 138
PPM 123518     07:06:05.0 +13:59:09  8.5  0.21 137
PPM 123534     07:06:53.7 +13:58:12 10.0  0.04 137
463368         07:06:55.3 +13:55:45 14.5       137
Positions are for J2000

Event circumstances last updated at 2022/03/31 22:59:47 UT

Marc W. Buie, Southwest Research Institute

RECON