RECON: TNO occultation with 533396

Event between (533396) 14GQ53 and star GA0760:22855596 with event index number of 2762459

Geocentric closest approach at 2029/05/23 22:16:49 UTC

J2000 position of star is 19:06:45.9 -12:15:21
Equinox of date position of star is 19:08:00.2 -12:13:12
Stellar brightness G=16.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 98 degrees from the moon. Moon is 80% illuminated.
TNO apparent brightness V=23.2

TNO is 23.3 AU from the Sun and 22.6 AU from the Earth.
The TNO is moving 15.4 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 460 seconds.
The 1-sigma cross-track error in the shadow position is 2019 km.

The TNO has an absolute magnitude Hv=9.4
Diameter=79.8 km assuming a 5% albedo -- 5.2 sec chord
Diameter=32.6 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 533396, (2029/05/23 22:17UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.9 -26:29:40  0.9 39.53  60
Nunki          18:57:05.1 -26:15:26  2.0 14.30  92
PPM 235666     19:14:54.0 -12:13:51  5.2  1.59  99
PPM 235496     19:08:03.4 -11:51:10  7.6  0.37  98
PPM 235503     19:08:22.9 -12:21:22  9.0  0.15  98
533396         19:08:24.5 -12:12:30 16.1        98
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 533396, (2029/05/23 22:17UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 39.53  60
Nunki          18:55:15.9 -26:17:49  2.0 14.30  92
PPM 235666     19:13:15.6 -12:16:58  5.2  1.59  99
PPM 235496     19:06:25.1 -11:54:00  7.6  0.37  98
PPM 235503     19:06:44.3 -12:24:13  9.0  0.15  98
533396         19:06:45.9 -12:15:21 16.1        98
Positions are for J2000

Event circumstances last updated at 2022/02/28 01:24:28 UT

Marc W. Buie, Southwest Research Institute

RECON