RECON: TNO occultation with 463368

Event between (463368) 12VU85 and star GA1000:02844698 with event index number of 2279440

Geocentric closest approach at 2027/02/03 10:34:29 UTC

J2000 position of star is 07:29:55.5 +11:17:10
Equinox of date position of star is 07:31:15.7 +11:14:04
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 161 degrees from the moon. Moon is 9% illuminated.
Apparent brightness V=20.7

[RECON map]
Object is 21.6 AU from the Sun and 20.6 AU from the Earth.
Apparent velocity is 21.3 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 655 seconds.
The 1-sigma cross-track error in the shadow position is 5521 km.
The sky-plane scale is 14973.8 km/arcsec.

The object has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 9.8 sec chord
Diameter=85.3 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 463368, (2027/02/03 10:34UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:58.5 +27:57:31  1.1 17.12 166
Alhena         06:39:16.6 +16:22:26  1.9 13.66 170
6 CMi          07:31:18.2 +11:56:54  4.5  0.72 162
PPM 124105     07:32:38.6 +11:08:38  7.7  0.31 161
PPM 124067     07:30:47.9 +10:58:00  9.1  0.30 161
463368         07:31:25.5 +11:13:41 15.7       161
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 1.4 sigma about the mid-time.
The median site spacing is 19.5 km RECON observability=0.9 and success probability=4.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:32:14 -37.8 Dark Down 19.3 263.6 Really Low 10:17:14 - 10:47:14 7035
Kamloops 10:32:26 -46.2 Dark Down 28.3 252.1 Low 10:17:26 - 10:47:26 6701
Kelowna 10:32:21 -46.3 Dark Down 28.1 253.3 Low 10:17:21 - 10:47:21 6665
Peachland 10:32:21 -46.5 Dark Down 28.3 253.1 Low 10:17:21 - 10:47:21 6653
Summerland 10:32:20 -46.5 Dark Down 28.3 253.2 Low 10:17:20 - 10:47:20 6645
Penticton 10:32:20 -46.5 Dark Down 28.2 253.4 Low 10:17:20 - 10:47:20 6643
Oliver 10:32:19 -46.7 Dark Down 28.3 253.5 Low 10:17:19 - 10:47:19 6620
Anarchist Mountain Observatory 10:32:18 -46.7 Dark Down 28.2 253.8 Low 10:17:18 - 10:47:18 6612
Okanogan 10:32:15 -47.2 Dark Down 28.6 253.9 Low 10:17:15 - 10:47:15 6565
Brewster 10:32:15 -47.5 Dark Down 28.8 253.9 Low 10:17:15 - 10:47:15 6543
Manson/Chelan 10:32:14 -47.8 Dark Down 29.1 253.7 Low 10:17:14 - 10:47:14 6522
Victoria 10:32:23 -49.1 Dark Down 30.9 250.5 Up 10:17:23 - 10:47:23 6502
Wenatchee 10:32:13 -48.2 Dark Down 29.3 253.8 Low 10:17:13 - 10:47:13 6486
Ellensburg 10:32:12 -48.6 Dark Down 29.6 253.8 Low 10:17:12 - 10:47:12 6454
Yakima 10:32:10 -48.8 Dark Down 29.7 254.0 Low 10:17:10 - 10:47:10 6425
PNWRO 10:32:05 -48.2 Dark Down 28.8 255.7 Low 10:17:05 - 10:47:05 6417
Toppenish/White Swan 10:32:09 -48.8 Dark Down 29.7 254.3 Low 10:17:09 - 10:47:09 6413
The Dalles 10:32:08 -49.7 Dark Down 30.4 254.1 Up 10:17:08 - 10:47:08 6342
Maupin 10:32:05 -49.9 Dark Down 30.4 254.4 Up 10:17:05 - 10:47:05 6315
Dunrhomin 10:31:24 -41.4 Dark Down 19.8 268.2 Really Low 10:16:24 - 10:46:24 6280
Nikitin 10:31:23 -41.5 Dark Down 19.8 268.2 Really Low 10:16:23 - 10:46:23 6266
CU-SBO 10:31:23 -41.5 Dark Down 19.8 268.2 Really Low 10:16:23 - 10:46:23 6260
Sisters 10:32:03 -50.7 Dark Down 31.0 254.5 Up 10:17:03 - 10:47:03 6241
Bend 10:32:02 -50.7 Dark Down 30.9 254.8 Up 10:17:02 - 10:47:02 6229
Oregon Observatory 10:32:01 -50.9 Dark Down 31.1 254.8 Up 10:17:01 - 10:47:01 6214
Chiloquin 10:31:58 -51.9 Dark Down 31.7 255.2 Up 10:16:58 - 10:46:58 6106
Klamath Falls 10:31:56 -52.0 Dark Down 31.7 255.5 Up 10:16:56 - 10:46:56 6082
Cedarville 10:31:51 -51.4 Dark Down 30.7 257.1 Up 10:16:51 - 10:46:51 6063
Fall River/Burney 10:31:51 -52.4 Dark Down 31.8 256.5 Up 10:16:51 - 10:46:51 5999
Gimple 10:31:47 -52.5 Dark Down 31.6 257.4 Up 10:16:47 - 10:46:47 5940
Greenville 10:31:47 -52.6 Dark Down 31.6 257.4 Up 10:16:47 - 10:46:47 5939
Portola 10:31:45 -52.4 Dark Down 31.4 257.9 Up 10:16:45 - 10:46:45 5923
Quincy 10:31:46 -52.7 Dark Down 31.7 257.5 Up 10:16:46 - 10:46:46 5923
Reno 10:31:43 -52.1 Dark Down 30.9 258.5 Up 10:16:43 - 10:46:43 5917
Carson City 10:31:41 -52.3 Dark Down 31.0 258.8 Up 10:16:41 - 10:46:41 5889
Yerington 10:31:40 -51.9 Dark Down 30.5 259.3 Up 10:16:40 - 10:46:40 5887
Gardnerville 10:31:40 -52.3 Dark Down 31.0 258.9 Up 10:16:40 - 10:46:40 5870
Hawthorne 10:31:37 -51.7 Dark Down 30.2 260.0 Up 10:16:37 - 10:46:37 5862
Lee Vining 10:31:36 -52.3 Dark Down 30.7 259.9 Up 10:16:36 - 10:46:36 5806
Bishop 10:31:32 -52.1 Dark Down 30.3 260.8 Up 10:16:32 - 10:46:32 5774
Beatty 10:31:27 -51.0 Dark Down 29.1 262.1 Low 10:16:27 - 10:46:27 5773
Patrick 10:31:18 -49.4 Dark Down 26.9 264.7 Low 10:16:18 - 10:46:18 5716
Laughlin/Bullhead City 10:31:18 -50.0 Dark Down 27.5 264.4 Low 10:16:18 - 10:46:18 5680
Lake Havasu City 10:31:15 -50.0 Dark Down 27.4 264.9 Low 10:16:15 - 10:46:15 5630
George/Scottsdale 10:31:08 -48.2 Dark Down 25.4 266.7 Low 10:16:08 - 10:46:08 5621
Idyllwild 10:31:17 -52.1 Dark Down 29.4 263.9 Low 10:16:17 - 10:46:17 5511
Wildwood 10:31:21 -53.5 Dark Down 30.9 262.5 Up 10:16:21 - 10:46:21 5496
Calipatria 10:31:13 -51.3 Dark Down 28.5 264.9 Low 10:16:13 - 10:46:13 5486
Yuma 10:31:10 -50.7 Dark Down 27.8 265.7 Low 10:16:10 - 10:46:10 5470

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, (2027/02/03 10:34UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 17.12 166
Alhena         06:37:42.8 +16:23:57  1.9 13.66 170
6 CMi          07:29:47.8 +12:00:23  4.5  0.72 162
PPM 124105     07:31:08.7 +11:12:10  7.7  0.31 161
PPM 124067     07:29:18.1 +11:01:28  9.1  0.30 161
463368         07:29:55.5 +11:17:10 15.7       161
Positions are for J2000

Event circumstances last updated at 2024/02/23 04:14:14 UT

Marc W. Buie, Southwest Research Institute

RECON