RECON: TNO occultation with 133067

Event between (133067) 03FB128 and star GA0720:06294039 with event index number of 1556822

Geocentric closest approach at 2026/09/10 16:11:19 UTC

J2000 position of star is 16:34:57.7 -16:02:37
Equinox of date position of star is 16:36:21.6 -16:05:34
Stellar brightness G=12.7, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 88 degrees from the moon. Moon is 0% illuminated.
Apparent brightness V=23.2

Object is 38.1 AU from the Sun and 38.2 AU from the Earth.
Apparent velocity is 9.7 km/sec on the sky relative to the star, or, 1.3 arcsec/hr.
The 1-sigma error in the time of the event is 346 seconds.
The 1-sigma cross-track error in the shadow position is 1492 km.

The object has an absolute magnitude Hv=7.2
Diameter=251.2 km assuming a 5% albedo -- 22.5 sec chord
Diameter=102.6 km assuming a 30% albedo -- 9.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 133067, (2026/09/10 16:11UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:02.9 -26:29:20  0.9 10.47  88
13Zet Oph      16:38:37.9 -10:37:09  2.6  5.50  88
8Phi Oph       16:32:40.3 -16:40:07  4.0  1.08  87
PPM 231822     16:34:09.7 -16:02:35  7.5  0.56  87
PPM 231874     16:36:36.9 -16:16:51  9.5  0.19  88
133067         16:36:29.4 -16:05:50 12.7        88
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 133067, (2026/09/10 16:11UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 10.47  88
13Zet Oph      16:37:09.6 -10:34:01  2.6  5.50  88
8Phi Oph       16:31:08.3 -16:36:47  4.0  1.08  87
PPM 231822     16:32:38.1 -15:59:18  7.5  0.56  87
PPM 231874     16:35:05.2 -16:13:39  9.5  0.19  88
133067         16:34:57.7 -16:02:37 12.7        88
Positions are for J2000

Event circumstances last updated at 2024/06/09 02:47:14 UT

Marc W. Buie, Southwest Research Institute

RECON