RECON: TNO occultation with 532094

Event between (532094) 13HX156 and star GA0800:05292767 with event index number of 2448647

Geocentric closest approach at 2026/09/28 05:57:37 UTC

J2000 position of star is 16:35:41.5 -08:20:07
Equinox of date position of star is 16:37:01.3 -08:23:02
Stellar brightness G=15.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 133 degrees from the moon. Moon is 97% illuminated.
Apparent brightness V=22.8

Object is 28.1 AU from the Sun and 28.5 AU from the Earth.
Apparent velocity is 19.8 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 155 seconds.
The 1-sigma cross-track error in the shadow position is 2256 km.

The object has an absolute magnitude Hv=8.1
Diameter=141.3 km assuming a 5% albedo -- 7.2 sec chord
Diameter=57.7 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 532094, (2026/09/28 05:58UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:03.1 -26:29:20  0.9 18.16 135
13Zet Oph      16:38:38.1 -10:37:09  2.6  2.26 133
PPM 199862     16:40:15.1 -08:40:11  6.4  0.82 132
PPM 199790     16:36:00.7 -08:12:11  7.5  0.34 133
PPM 199812     16:37:36.3 -08:27:45  9.6  0.14 133
532094         16:37:08.7 -08:23:18 15.9       133
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 532094, (2026/09/28 05:58UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 18.16 135
13Zet Oph      16:37:09.6 -10:34:01  2.6  2.26 133
PPM 199862     16:38:47.7 -08:37:07  6.4  0.82 132
PPM 199790     16:34:33.7 -08:08:58  7.5  0.34 133
PPM 199812     16:36:09.1 -08:24:35  9.6  0.14 133
532094         16:35:41.5 -08:20:07 15.9       133
Positions are for J2000

Event circumstances last updated at 2024/06/19 21:32:53 UT

Marc W. Buie, Southwest Research Institute

RECON