RECON: TNO occultation with 534625

Event between (534625) 14UQ224 and star GA1140:01295690 with event index number of 2743805

Geocentric closest approach at 2029/04/05 16:42:55 UTC

J2000 position of star is 05:30:36.5 +25:03:27
Equinox of date position of star is 05:32:05.8 +25:04:27
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 159 degrees from the moon. Moon is 52% illuminated.
Apparent brightness V=22.4

Object is 46.4 AU from the Sun and 46.8 AU from the Earth.
Apparent velocity is 15.2 km/sec on the sky relative to the star, or, 1.6 arcsec/hr.
The 1-sigma error in the time of the event is 576 seconds.
The 1-sigma cross-track error in the shadow position is 1855 km.

The object has an absolute magnitude Hv=5.6
Diameter=467.8 km assuming a 5% albedo -- 30.8 sec chord
Diameter=191.0 km assuming a 30% albedo -- 12.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 534625, (2029/04/05 16:44UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:36.2 +16:33:58  0.8 15.36 145
Alnath         05:28:08.6 +28:37:46  1.6  3.68 157
125 Tau        05:41:33.1 +25:54:38  5.2  2.22 161
PPM 094479     05:35:18.6 +24:38:49  7.0  0.79 159
PPM 094428     05:32:24.3 +24:50:13  9.8  0.24 159
534625         05:32:24.6 +25:04:39 16.7       159
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 534625, (2029/04/05 16:44UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 15.36 145
Alnath         05:26:17.6 +28:36:23  1.6  3.68 157
125 Tau        05:39:44.2 +25:53:49  5.2  2.22 161
PPM 094479     05:33:30.8 +24:37:44  7.0  0.79 159
PPM 094428     05:30:36.4 +24:49:00  9.8  0.24 159
534625         05:30:36.5 +25:03:27 16.7       159
Positions are for J2000

Event circumstances last updated at 2024/03/08 03:18:41 UT

Marc W. Buie, Southwest Research Institute

RECON