RECON: TNO occultation with 532094

Event between (532094) 13HX156 and star GA0800:05688795 with event index number of 2448747

Geocentric closest approach at 2028/02/24 22:07:55 UTC

J2000 position of star is 17:03:29.5 -09:24:09
Equinox of date position of star is 17:04:50.0 -09:26:08
Stellar brightness G=14.4, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 74 degrees from the moon. Moon is 0% illuminated.
Apparent brightness V=22.8

Object is 27.9 AU from the Sun and 28.1 AU from the Earth.
Apparent velocity is 12.5 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 375 seconds.
The 1-sigma cross-track error in the shadow position is 1832 km.

The object has an absolute magnitude Hv=8.1
Diameter=141.3 km assuming a 5% albedo -- 11.4 sec chord
Diameter=57.7 km assuming a 30% albedo -- 4.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 532094, (2028/02/24 22:08UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:08.3 -26:29:31  0.9 18.84  81
35Eta Oph      17:11:59.7 -15:45:28  2.6  6.54  72
PPM 232685     17:11:21.5 -10:33:27  5.6  1.92  73
PPM 200352     17:08:37.8 -09:49:37  8.5  0.97  73
PPM 200293     17:04:49.4 -09:18:31  9.2  0.14  74
532094         17:05:02.1 -09:26:25 14.4        74
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, (2028/02/24 22:08UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 18.84  81
35Eta Oph      17:10:22.8 -15:43:28  2.6  6.54  72
PPM 232685     17:09:48.0 -10:31:26  5.6  1.92  73
PPM 200352     17:07:04.9 -09:47:30  8.5  0.97  73
PPM 200293     17:03:16.9 -09:16:14  9.2  0.14  74
532094         17:03:29.5 -09:24:09 14.4        74
Positions are for J2000

Event circumstances last updated at 2024/06/23 21:28:14 UT

Marc W. Buie, Southwest Research Institute

RECON