RECON: TNO occultation with 13AZ60

Event between 13AZ60 and star GA0500:10793329 with event index number of 2040487

Geocentric closest approach at 2024/06/09 19:36:03 UTC

J2000 position of star is 16:18:43.0 -38:51:05
Equinox of date position of star is 16:20:20.7 -38:54:30
Stellar brightness G=14.8, 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 12% illuminated.
Apparent brightness V=23.3

Object is 20.1 AU from the Sun and 19.2 AU from the Earth.
Apparent velocity is 23.1 km/sec on the sky relative to the star, or, 6.0 arcsec/hr.
The 1-sigma error in the time of the event is 48 seconds.
The 1-sigma cross-track error in the shadow position is 1255 km.

The object has an absolute magnitude Hv=10.3
Diameter=53.0 km assuming a 5% albedo -- 2.3 sec chord
Diameter=21.6 km assuming a 30% albedo -- 0.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 13AZ60, (2024/06/09 19:36UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.6 -26:29:03  0.9 12.62 130
Eta Lup        16:01:45.0 -38:27:51  2.8  3.66 125
PPM 295007     16:25:41.0 -39:14:53  5.4  1.09 130
PPM 294831     16:16:22.2 -39:11:28  7.8  0.83 128
PPM 294891     16:20:05.0 -38:50:51  9.8  0.08 129
13AZ60         16:20:22.0 -38:54:33 14.8       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 13AZ60, (2024/06/09 19:36UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 12.62 130
Eta Lup        16:00:07.3 -38:23:48  2.8  3.66 125
PPM 295007     16:24:01.4 -39:11:35  5.4  1.09 130
PPM 294831     16:14:43.2 -39:07:53  7.8  0.83 128
PPM 294891     16:18:26.1 -38:47:23  9.8  0.08 129
13AZ60         16:18:43.0 -38:51:05 14.8       129
Positions are for J2000

Event circumstances last updated at 2024/02/12 04:26:29 UT

Marc W. Buie, Southwest Research Institute

RECON