RECON: TNO occultation with 612533

Event between (612533) 02XV93 and star GA1260:03128539 with event index number of 2814496

Geocentric closest approach at 2024/01/07 14:47:47 UTC

J2000 position of star is 06:57:57.4 +36:21:40
Equinox of date position of star is 06:59:30.9 +36:19:42
Stellar brightness G=15.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 134 degrees from the moon. Moon is 18% illuminated.
Apparent brightness V=20.7

Object is 38.0 AU from the Sun and 37.0 AU from the Earth.
Apparent velocity is 25.3 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 125 seconds.
The 1-sigma cross-track error in the shadow position is 1358 km.

The object has an absolute magnitude Hv=4.9
Diameter=633.9 km assuming a 5% albedo -- 25.1 sec chord
Diameter=258.8 km assuming a 30% albedo -- 10.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 612533, (2024/01/07 14:47UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:47.0 +27:57:58  1.1 13.01 123
62 Aur         07:00:40.9 +38:01:01  6.0  1.70 134
PPM 072284     06:59:57.4 +36:50:34  8.5  0.52 134
PPM 072297     07:00:48.3 +36:44:47  9.4  0.49 134
PPM 072267     06:58:56.4 +36:25:04 11.0  0.16 134
612533         06:59:34.1 +36:19:38 15.0       134
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 612533, (2024/01/07 14:47UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 13.01 123
62 Aur         06:59:02.8 +38:03:06  6.0  1.70 134
PPM 072284     06:58:20.2 +36:52:37  8.5  0.52 134
PPM 072297     06:59:11.3 +36:46:51  9.4  0.49 134
PPM 072267     06:57:19.6 +36:27:05 11.0  0.16 134
612533         06:57:57.4 +36:21:40 15.0       134
Positions are for J2000

Event circumstances last updated at 2023/03/27 03:11:03 UT

Marc W. Buie, Southwest Research Institute

RECON