RECON: TNO occultation with 14GR53

Event between 14GR53 and star GA0500:13162286 with event index number of 2482418

Geocentric closest approach at 2024/03/22 13:48:29 UTC

J2000 position of star is 16:44:07.5 -39:43:05
Equinox of date position of star is 16:45:47.0 -39:45:40
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 102 degrees from the moon. Moon is 93% illuminated.
Apparent brightness V=22.1

Object is 24.0 AU from the Sun and 23.6 AU from the Earth.
Apparent velocity is 13.7 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 206 seconds.
The 1-sigma cross-track error in the shadow position is 1741 km.

The object has an absolute magnitude Hv=8.1
Diameter=147.2 km assuming a 5% albedo -- 10.7 sec chord
Diameter=60.1 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is CENTAURS
 
 
 
 
 
 
 
 

Star training set for 14GR53, (2024/03/22 13:48UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:53.8 -26:29:01  0.9 13.64  97
26Eps Sco      16:51:44.3 -34:20:05  2.3  5.55 103
PPM 295474     16:48:27.7 -39:25:09  5.5  0.62 103
PPM 295411     16:45:21.2 -39:31:46  8.5  0.25 102
14GR53         16:45:47.5 -39:45:41 16.5       103
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 14GR53, (2024/03/22 13:48UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 13.64  97
26Eps Sco      16:50:08.7 -34:17:41  2.3  5.55 103
PPM 295474     16:46:47.9 -39:22:38  5.5  0.62 103
PPM 295411     16:43:41.4 -39:29:09  8.5  0.25 102
14GR53         16:44:07.5 -39:43:05 16.5       102
Positions are for J2000

Event circumstances last updated at 2024/02/12 04:19:17 UT

Marc W. Buie, Southwest Research Institute

RECON