RECON: TNO occultation with 533206

Event between (533206) 14DE143 and star GA0900:03844509 with event index number of 2592974

Geocentric closest approach at 2022/04/23 18:52:22 UTC

J2000 position of star is 12:13:42.8 +00:54:23
Equinox of date position of star is 12:14:51.0 +00:46:59
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 125 degrees from the moon. Moon is 47% illuminated.
TNO apparent brightness V=22.5

TNO is 43.8 AU from the Sun and 42.9 AU from the Earth.
The TNO is moving 21.3 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 121 seconds.
The 1-sigma cross-track error in the shadow position is 1896 km.

The TNO has an absolute magnitude Hv=6.0
Diameter=375.0 km assuming a 5% albedo -- 17.6 sec chord
Diameter=153.1 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 533206, (2022/04/23 18:52UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:22.3 -11:16:37  1.0 21.48 103
Denebola       11:50:11.8 +14:26:50  2.1 14.96 136
10 Vir         12:10:49.9 +01:46:22  5.9  1.41 126
PPM 158596     12:12:34.0 +00:04:11  8.5  0.91 125
PPM 158620     12:14:33.8 +01:01:55  9.8  0.26 125
PPM 158628     12:15:01.6 +00:42:35 10.6  0.08 125
533206         12:14:51.4 +00:46:57 16.9       124
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 533206, (2022/04/23 18:52UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 21.48 103
Denebola       11:49:02.8 +14:34:17  2.1 14.96 136
10 Vir         12:09:41.4 +01:53:49  5.9  1.41 126
PPM 158596     12:11:25.4 +00:11:37  8.5  0.91 125
PPM 158620     12:13:25.3 +01:09:21  9.8  0.26 125
PPM 158628     12:13:53.0 +00:50:01 10.6  0.08 125
533206         12:13:42.8 +00:54:23 16.9       125
Positions are for J2000

Event circumstances last updated at 2022/03/16 00:54:40 UT

Marc W. Buie, Southwest Research Institute

RECON