RECON: TNO occultation with 463368

Event between (463368) 12VU85 and star GA1000:02822294 with event index number of 2279449

Geocentric closest approach at 2027/02/23 00:13:19 UTC

J2000 position of star is 07:27:35.4 +11:25:04
Equinox of date position of star is 07:28:56.8 +11:22:00
Stellar brightness G=14.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 69 degrees from the moon. Moon is 94% illuminated.
Apparent brightness V=20.8

Object is 21.5 AU from the Sun and 20.8 AU from the Earth.
Apparent velocity is 15.8 km/sec on the sky relative to the star, or, 3.8 arcsec/hr.
The 1-sigma error in the time of the event is 859 seconds.
The 1-sigma cross-track error in the shadow position is 5528 km.

The object has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 13.2 sec chord
Diameter=85.3 km assuming a 30% albedo -- 5.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 463368, (2027/02/23 00:13UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:58.6 +27:57:30  1.1 17.12  69
Alhena         06:39:16.8 +16:22:26  1.9 13.08  82
PPM 124016     07:28:11.2 +10:57:10  6.1  0.47  70
PPM 124032     07:28:57.6 +10:55:11  9.0  0.44  69
PPM 124012     07:27:58.4 +11:18:09 11.2  0.28  70
463368         07:29:05.7 +11:21:39 14.7        69
Positions are for equinox of date

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, (2027/02/23 00:13UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 17.12  69
Alhena         06:37:42.8 +16:23:57  1.9 13.08  82
PPM 124016     07:26:41.2 +11:00:32  6.1  0.47  70
PPM 124032     07:27:27.6 +10:58:36  9.0  0.44  69
PPM 124012     07:26:28.2 +11:21:31 11.2  0.28  70
463368         07:27:35.4 +11:25:04 14.7        69
Positions are for J2000

Event circumstances last updated at 2024/06/21 21:26:58 UT

Marc W. Buie, Southwest Research Institute

RECON