RECON: TNO occultation with 523734

Event between (523734) 14QV441 and star GA0860:00645578 with event index number of 2743595

Geocentric closest approach at 2029/04/08 21:00:13 UTC

J2000 position of star is 05:20:15.8 -02:18:19
Equinox of date position of star is 05:21:28.3 -02:16:57
Stellar brightness G=13.5, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 114 degrees from the moon. Moon is 21% illuminated.
Apparent brightness V=22.2

Object is 20.7 AU from the Sun and 21.1 AU from the Earth.
Apparent velocity is 24.8 km/sec on the sky relative to the star, or, 5.8 arcsec/hr.
The 1-sigma error in the time of the event is 95 seconds.
The 1-sigma cross-track error in the shadow position is 1752 km.

The object has an absolute magnitude Hv=8.7
Diameter=106.7 km assuming a 5% albedo -- 4.4 sec chord
Diameter=43.5 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 523734, (2029/04/08 20:57UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:15:56.8 -08:10:12  0.1  6.07 111
34Del Ori      05:33:30.2 -00:16:47  2.2  3.56 117
28Eta Ori      05:25:57.0 -02:22:21  3.4  1.06 115
PPM 175806     05:23:08.5 -02:01:26  8.3  0.43 114
PPM 187949     05:21:31.1 -02:26:41  9.1  0.18 114
523734         05:21:44.2 -02:16:40 13.5       114
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 523734, (2029/04/08 20:57UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:14:32.3 -08:12:06  0.1  6.07 111
34Del Ori      05:32:00.4 -00:17:57  2.2  3.56 117
28Eta Ori      05:24:28.6 -02:23:49  3.4  1.06 115
PPM 175806     05:21:39.9 -02:03:01  8.3  0.43 114
PPM 187949     05:20:02.7 -02:28:21  9.1  0.18 114
523734         05:20:15.8 -02:18:19 13.5       114
Positions are for J2000

Event circumstances last updated at 2023/12/24 23:37:25 UT

Marc W. Buie, Southwest Research Institute

RECON