RECON: TNO occultation with 483002

Event between (483002) 14QS441 and star GA0820:00218757 with event index number of 2317667

Geocentric closest approach at 2022/09/12 05:06:21 UTC

J2000 position of star is 02:49:47.1 -06:48:29
Equinox of date position of star is 02:50:52.2 -06:43:06
Stellar brightness G=14.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 31 degrees from the moon. Moon is 96% illuminated.
TNO apparent brightness V=22.1

TNO is 44.3 AU from the Sun and 43.7 AU from the Earth.
The TNO is moving 19.2 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 90 seconds.
The 1-sigma cross-track error in the shadow position is 1785 km.

The TNO has an absolute magnitude Hv=5.5
Diameter=487.5 km assuming a 5% albedo -- 25.5 sec chord
Diameter=199.0 km assuming a 30% albedo -- 10.4 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 
 
 

Star training set for 483002, (2022/09/12 05:06UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:13.5 +16:33:11  0.8 35.11  57
68Omi Cet      02:20:29.7 -02:52:32  2.0  8.49  23
8Rho1Eri       03:02:17.1 -07:34:29  6.0  2.95  34
PPM 185012     02:47:41.4 -06:36:28  8.2  0.81  30
PPM 185093     02:51:28.1 -06:40:28  8.7  0.15  31
483002         02:50:54.5 -06:42:54 14.8        31
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 483002, (2022/09/12 05:06UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 35.11  57
68Omi Cet      02:19:20.8 -02:58:45  2.0  8.49  23
8Rho1Eri       03:01:10.2 -07:39:49  6.0  2.95  34
PPM 185012     02:46:34.0 -06:42:07  8.2  0.81  30
PPM 185093     02:50:20.7 -06:46:02  8.7  0.15  31
483002         02:49:47.1 -06:48:29 14.8        31
Positions are for J2000

Event circumstances last updated at 2021/12/08 01:49:58 UT

Marc W. Buie, Southwest Research Institute

RECON