RECON: TNO occultation with 463368

Event between (463368) 12VU85 and star GA1060:02043294 with event index number of 2278743

Geocentric closest approach at 2023/01/17 10:35:06 UTC

J2000 position of star is 06:30:44.8 +16:17:51
Equinox of date position of star is 06:32:04.5 +16:16:48
Stellar brightness G=15.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 138 degrees from the moon. Moon is 26% illuminated.
Apparent brightness V=20.9

[RECON map]
Object is 22.7 AU from the Sun and 21.8 AU from the Earth.
Apparent velocity is 22.1 km/sec on the sky relative to the star, or, 5.0 arcsec/hr.
The 1-sigma error in the time of the event is 252 seconds.
The 1-sigma cross-track error in the shadow position is 1821 km.
The sky-plane scale is 15820.8 km/arcsec.

The object has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 9.5 sec chord
Diameter=85.3 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 463368, (2023/01/17 10:35UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:25.2 +07:24:34  0.4 12.43 143
Alhena         06:39:02.6 +16:22:40  1.9  1.67 136
PPM 122497     06:28:34.8 +14:52:25  6.2  1.64 138
PPM 122596     06:32:37.8 +16:16:21  8.3  0.13 138
463368         06:32:04.6 +16:16:48 15.1       137
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 3.6 sigma about the mid-time.
The median site spacing is 24.0 km RECON observability=1.0 and success probability=5.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:32:25 -40.6 Dark Down 24.4 265.4 Low 10:17:25 - 10:47:25 5711
Kamloops 10:32:40 -49.3 Dark Down 33.4 254.0 Up 10:17:40 - 10:47:40 5338
Kelowna 10:32:36 -49.2 Dark Down 33.1 255.3 Up 10:17:36 - 10:47:36 5290
Peachland 10:32:35 -49.5 Dark Down 33.3 255.1 Up 10:17:35 - 10:47:35 5276
Summerland 10:32:35 -49.5 Dark Down 33.3 255.3 Up 10:17:35 - 10:47:35 5266
Penticton 10:32:35 -49.5 Dark Down 33.2 255.4 Up 10:17:35 - 10:47:35 5263
Oliver 10:32:33 -49.6 Dark Down 33.3 255.7 Up 10:17:33 - 10:47:33 5235
Anarchist Mountain Observatory 10:32:33 -49.6 Dark Down 33.3 255.9 Up 10:17:33 - 10:47:33 5225
Okanogan 10:32:31 -50.1 Dark Down 33.6 256.1 Up 10:17:31 - 10:47:31 5168
Brewster 10:32:30 -50.3 Dark Down 33.8 256.1 Up 10:17:30 - 10:47:30 5142
Manson/Chelan 10:32:30 -50.7 Dark Down 34.0 256.0 Up 10:17:30 - 10:47:30 5118
Victoria 10:32:39 -52.1 Dark Down 35.9 252.7 Up 10:17:39 - 10:47:39 5110
Wenatchee 10:32:29 -51.0 Dark Down 34.3 256.1 Up 10:17:29 - 10:47:29 5076
Ellensburg 10:32:28 -51.4 Dark Down 34.5 256.2 Up 10:17:28 - 10:47:28 5038
Yakima 10:32:26 -51.6 Dark Down 34.6 256.5 Up 10:17:26 - 10:47:26 5003
Toppenish/White Swan 10:32:26 -51.6 Dark Down 34.6 256.8 Up 10:17:26 - 10:47:26 4989
PNWRO 10:32:22 -50.9 Dark Down 33.6 258.2 Up 10:17:22 - 10:47:22 4987
The Dalles 10:32:25 -52.4 Dark Down 35.3 256.6 Up 10:17:25 - 10:47:25 4907
Maupin 10:32:24 -52.6 Dark Down 35.3 257.0 Up 10:17:24 - 10:47:24 4874
Dunrhomin 10:31:42 -43.2 Dark Up 24.3 271.2 Low 10:16:42 - 10:46:42 4799
Sisters 10:32:22 -53.3 Dark Down 35.9 257.2 Up 10:17:22 - 10:47:22 4789
Nikitin 10:31:42 -43.3 Dark Up 24.3 271.3 Low 10:16:42 - 10:46:42 4783
CU-SBO 10:31:41 -43.4 Dark Up 24.4 271.2 Low 10:16:41 - 10:46:41 4776
Bend 10:32:21 -53.3 Dark Down 35.7 257.6 Up 10:17:21 - 10:47:21 4773
Oregon Observatory 10:32:20 -53.5 Dark Down 35.9 257.6 Up 10:17:20 - 10:47:20 4756
Chiloquin 10:32:17 -54.3 Dark Down 36.4 258.2 Up 10:17:17 - 10:47:17 4632
Klamath Falls 10:32:16 -54.4 Dark Down 36.5 258.5 Up 10:17:16 - 10:47:16 4603
Cedarville 10:32:11 -53.7 Dark Down 35.4 260.2 Up 10:17:11 - 10:47:11 4575
Fall River/Burney 10:32:12 -54.7 Dark Down 36.4 259.6 Up 10:17:12 - 10:47:12 4505
Gimple 10:32:08 -54.7 Dark Down 36.2 260.7 Up 10:17:08 - 10:47:08 4435
Greenville 10:32:09 -54.8 Dark Down 36.2 260.6 Up 10:17:09 - 10:47:09 4433
Quincy 10:32:08 -54.8 Dark Down 36.3 260.8 Up 10:17:08 - 10:47:08 4415
Portola 10:32:06 -54.6 Dark Down 35.9 261.2 Up 10:17:06 - 10:47:06 4414
Reno 10:32:04 -54.2 Dark Down 35.5 261.8 Up 10:17:04 - 10:47:04 4403
Carson City 10:32:03 -54.3 Dark Down 35.5 262.1 Up 10:17:03 - 10:47:03 4371
Yerington 10:32:01 -53.9 Dark Down 35.1 262.7 Up 10:17:01 - 10:47:01 4367
Gardnerville 10:32:02 -54.4 Dark Down 35.5 262.3 Up 10:17:02 - 10:47:02 4350
Hawthorne 10:31:59 -53.7 Dark Down 34.7 263.4 Up 10:16:59 - 10:46:59 4336
Lee Vining 10:31:59 -54.2 Dark Down 35.2 263.4 Up 10:16:59 - 10:46:59 4274
Bishop 10:31:56 -53.9 Dark Down 34.7 264.3 Up 10:16:56 - 10:46:56 4235
Beatty 10:31:50 -52.8 Dark Down 33.4 265.7 Up 10:16:50 - 10:46:50 4229
Patrick 10:31:41 -50.8 Dark Up 31.2 268.4 Up 10:16:41 - 10:46:41 4159
Laughlin/Bullhead City 10:31:42 -51.5 Dark Up 31.8 268.1 Up 10:16:42 - 10:46:42 4119
Lake Havasu City 10:31:39 -51.4 Dark Up 31.6 268.7 Up 10:16:39 - 10:46:39 4062
George/Scottsdale 10:31:33 -49.5 Dark Up 29.6 270.5 Low 10:16:33 - 10:46:33 4049
Idyllwild 10:31:42 -53.5 Dark Up 33.6 267.8 Up 10:16:42 - 10:46:42 3933
Wildwood 10:31:47 -54.9 Dark Down 35.1 266.4 Up 10:16:47 - 10:46:47 3921
Calipatria 10:31:38 -52.6 Dark Up 32.6 268.8 Up 10:16:38 - 10:46:38 3902
Yuma 10:31:36 -51.9 Dark Up 31.9 269.6 Up 10:16:36 - 10:46:36 3883

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, (2023/01/17 10:35UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 12.43 143
Alhena         06:37:42.8 +16:23:57  1.9  1.67 136
PPM 122497     06:27:15.8 +14:53:21  6.2  1.64 138
PPM 122596     06:31:18.0 +16:17:26  8.3  0.13 138
463368         06:30:44.8 +16:17:51 15.1       138
Positions are for J2000

Event circumstances last updated at 2023/01/09 03:27:15 UT

Marc W. Buie, Southwest Research Institute

RECON