RECON: TNO occultation with 533396

Event between (533396) 14GQ53 and star GA0840:05691351 with event index number of 2590095

Geocentric closest approach at 2022/07/01 12:07:15 UTC

J2000 position of star is 17:19:56.1 -04:40:05
Equinox of date position of star is 17:21:05.5 -04:41:20
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 129 degrees from the moon. Moon is 5% illuminated.
TNO apparent brightness V=22.6

TNO is 20.5 AU from the Sun and 19.6 AU from the Earth.
The TNO is moving 21.4 km/sec on the sky relative to the star, or, 5.4 arcsec/hr.
The 1-sigma error in the time of the event is 60 seconds.
The 1-sigma cross-track error in the shadow position is 835 km.

The TNO has an absolute magnitude Hv=9.4
Diameter=79.8 km assuming a 5% albedo -- 3.7 sec chord
Diameter=32.6 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 533396, (2022/07/01 12:07UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.4 -26:28:48  0.9 24.89 124
60Bet Oph      17:44:35.1 +04:33:34  2.8 10.95 129
PPM 200559     17:21:11.9 -05:56:24  6.5  1.25 129
PPM 200558     17:21:01.4 -04:04:15  8.1  0.62 129
PPM 200553     17:20:30.0 -04:37:36  9.5  0.17 129
533396         17:21:07.7 -04:41:23 16.5       129
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, (2022/07/01 12:07UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 24.89 124
60Bet Oph      17:43:28.3 +04:34:06  2.8 10.95 129
PPM 200559     17:19:59.6 -05:55:07  6.5  1.25 129
PPM 200558     17:19:50.2 -04:02:57  8.1  0.62 129
PPM 200553     17:19:18.4 -04:36:17  9.5  0.17 129
533396         17:19:56.1 -04:40:05 16.5       129
Positions are for J2000

Event circumstances last updated at 2021/10/13 01:35:21 UT

Marc W. Buie, Southwest Research Institute

RECON