RECON: TNO occultation with 535029

Event between (535029) 14WG510 and star GA0940:00709584 with event index number of 2261242

Geocentric closest approach at 2023/01/05 23:49:14 UTC

J2000 position of star is 05:22:53.4 +05:15:43
Equinox of date position of star is 05:24:06.2 +05:16:55
Stellar brightness G=15.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 26 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=22.6

TNO is 38.3 AU from the Sun and 37.4 AU from the Earth.
The TNO is moving 23.1 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 130 seconds.
The 1-sigma cross-track error in the shadow position is 1386 km.

The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 11.9 sec chord
Diameter=112.4 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 535029, (2023/01/05 23:50UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:25.1 +07:24:34  0.4  8.30  21
Bellatrix      05:26:22.0 +06:22:07  1.6  1.22  25
PPM 148872     05:24:44.6 +05:20:35  6.2  0.17  26
PPM 148844     05:23:35.6 +05:11:41 10.3  0.16  26
535029         05:24:07.0 +05:16:56 15.2        26
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 535029, (2023/01/05 23:50UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  8.30  21
Bellatrix      05:25:07.8 +06:20:58  1.6  1.22  25
PPM 148872     05:23:31.0 +05:19:23  6.2  0.17  26
PPM 148844     05:22:22.1 +05:10:27 10.3  0.16  26
535029         05:22:53.4 +05:15:43 15.2        26
Positions are for J2000

Event circumstances last updated at 2022/10/10 04:16:21 UT

Marc W. Buie, Southwest Research Institute

RECON