RECON: TNO occultation with 533396

Event between (533396) 14GQ53 and star GA0760:22522268 with event index number of 2784674

Geocentric closest approach at 2029/06/18 22:08:22 UTC

J2000 position of star is 19:03:46.5 -12:19:09
Equinox of date position of star is 19:05:00.9 -12:17:06
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 115 degrees from the moon. Moon is 45% illuminated.
TNO apparent brightness V=23.1

TNO is 23.3 AU from the Sun and 22.4 AU from the Earth.
The TNO is moving 22.1 km/sec on the sky relative to the star, or, 4.9 arcsec/hr.
The 1-sigma error in the time of the event is 305 seconds.
The 1-sigma cross-track error in the shadow position is 2418 km.

The TNO has an absolute magnitude Hv=9.4
Diameter=79.8 km assuming a 5% albedo -- 3.6 sec chord
Diameter=32.6 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 533396, (2029/06/18 22:08UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:13.1 -26:29:41  0.9 38.85  78
Nunki          18:57:05.4 -26:15:26  2.0 14.12 110
PPM 235666     19:14:54.3 -12:13:50  5.2  2.32 117
PPM 235430     19:05:01.3 -12:39:51  8.1  0.40 115
PPM 235454     19:05:58.6 -12:30:59  9.0  0.28 115
533396         19:05:25.3 -12:16:25 16.5       115
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, (2029/06/18 22:08UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 38.85  78
Nunki          18:55:15.9 -26:17:49  2.0 14.12 110
PPM 235666     19:13:15.6 -12:16:58  5.2  2.32 117
PPM 235430     19:03:22.2 -12:42:34  8.1  0.40 115
PPM 235454     19:04:19.6 -12:33:45  9.0  0.28 115
533396         19:03:46.5 -12:19:09 16.5       115
Positions are for J2000

Event circumstances last updated at 2022/03/07 03:10:05 UT

Marc W. Buie, Southwest Research Institute

RECON