RECON: TNO occultation with 524366

Event between (524366) 01XR254 and star GA1060:03165201 with event index number of 2318296

Geocentric closest approach at 2024/12/15 17:41:27 UTC

J2000 position of star is 08:47:40.6 +16:52:09
Equinox of date position of star is 08:49:02.2 +16:46:45
Stellar brightness G=15.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 41 degrees from the moon. Moon is 100% illuminated.
Apparent brightness V=22.3

Object is 43.8 AU from the Sun and 43.1 AU from the Earth.
Apparent velocity is 16.7 km/sec on the sky relative to the star, or, 1.9 arcsec/hr.
The 1-sigma error in the time of the event is 212 seconds.
The 1-sigma cross-track error in the shadow position is 1939 km.

The object has an absolute magnitude Hv=5.8
Diameter=415.0 km assuming a 5% albedo -- 25.2 sec chord
Diameter=169.4 km assuming a 30% albedo -- 10.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 524366, (2024/12/15 17:46UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:50.5 +27:57:50  1.1 18.19  24
47Del Cnc      08:46:06.0 +18:03:40  3.9  1.47  40
PPM 125759     08:49:30.8 +17:18:05  8.3  0.54  41
PPM 125744     08:48:52.8 +16:53:30  8.9  0.13  41
524366         08:49:04.9 +16:46:34 15.9        41
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 524366, (2024/12/15 17:46UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 18.19  24
47Del Cnc      08:44:41.1 +18:09:11  3.9  1.47  40
PPM 125759     08:48:06.3 +17:23:41  8.3  0.54  41
PPM 125744     08:47:28.5 +16:59:05  8.9  0.13  41
524366         08:47:40.6 +16:52:09 15.9        41
Positions are for J2000

Event circumstances last updated at 2024/03/04 05:29:15 UT

Marc W. Buie, Southwest Research Institute

RECON