RECON: TNO occultation with 535024

Event between (535024) 14WR509 and star GA1100:00377848 with event index number of 2338387

Geocentric closest approach at 2022/02/17 20:33:26 UTC

J2000 position of star is 03:23:27.1 +20:32:07
Equinox of date position of star is 03:24:43.1 +20:36:43
Stellar brightness G=14.3, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 109 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=22.2

TNO is 29.8 AU from the Sun and 29.8 AU from the Earth.
The TNO is moving 7.7 km/sec on the sky relative to the star, or, 1.3 arcsec/hr.
The 1-sigma error in the time of the event is 186 seconds.
The 1-sigma cross-track error in the shadow position is 1399 km.

The TNO has an absolute magnitude Hv=7.3
Diameter=206.1 km assuming a 5% albedo -- 26.7 sec chord
Diameter=84.1 km assuming a 30% albedo -- 10.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 535024, (2022/02/17 20:32UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:11.6 +16:33:07  0.8 17.63  93
44Zet Per      03:55:31.7 +31:56:51  2.8 13.26  99
63Tau2Ari      03:24:01.9 +20:49:11  6.2  0.26 109
535024         03:24:43.8 +20:36:46 14.3       109
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 535024, (2022/02/17 20:32UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 17.63  93
44Zet Per      03:54:07.9 +31:53:01  2.8 13.26  99
63Tau2Ari      03:22:45.2 +20:44:31  6.2  0.26 109
535024         03:23:27.1 +20:32:07 14.3       109
Positions are for J2000

Event circumstances last updated at 2021/12/06 01:46:50 UT

Marc W. Buie, Southwest Research Institute

RECON