RECON: TNO occultation with 443843

Event between (443843) 01FO185 and star GA0740:05649338 with event index number of 2695333

Geocentric closest approach at 2029/02/03 09:12:52 UTC

J2000 position of star is 15:51:10.4 -14:24:29
Equinox of date position of star is 15:52:32.8 -14:28:49
Stellar brightness G=12.8, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 49 degrees from the moon. Moon is 78% illuminated.
Apparent brightness V=23.8

Object is 43.1 AU from the Sun and 43.3 AU from the Earth.
Apparent velocity is 12.9 km/sec on the sky relative to the star, or, 1.5 arcsec/hr.
The 1-sigma error in the time of the event is 818 seconds.
The 1-sigma cross-track error in the shadow position is 2075 km.

The object has an absolute magnitude Hv=7.3
Diameter=211.8 km assuming a 5% albedo -- 16.5 sec chord
Diameter=86.5 km assuming a 30% albedo -- 6.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 443843, (2029/02/03 09:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:11.8 -26:29:38  0.9 14.98  58
8Bet1Sco       16:07:08.0 -19:52:57  2.6  6.38  52
PPM 230856     15:53:16.2 -14:13:09  6.2  0.30  49
PPM 230861     15:53:29.2 -14:38:20  9.5  0.22  49
443843         15:52:48.3 -14:29:38 12.8        49
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 443843, (2029/02/03 09:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 14.98  58
8Bet1Sco       16:05:26.2 -19:48:20  2.6  6.38  52
PPM 230856     15:51:38.4 -14:08:01  6.2  0.30  49
PPM 230861     15:51:51.1 -14:33:12  9.5  0.22  49
443843         15:51:10.4 -14:24:29 12.8        49
Positions are for J2000

Event circumstances last updated at 2024/06/26 21:31:02 UT

Marc W. Buie, Southwest Research Institute

RECON