RECON: TNO occultation with 523717

Event between (523717) 14KY101 and star GA0660:29188435 with event index number of 2736140

Geocentric closest approach at 2029/02/22 16:34:27 UTC

J2000 position of star is 18:13:02.0 -22:37:52
Equinox of date position of star is 18:14:30.9 -22:37:23
Stellar brightness G=13.2, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 163 degrees from the moon. Moon is 61% illuminated.
Apparent brightness V=22.4

Object is 37.0 AU from the Sun and 37.4 AU from the Earth.
Apparent velocity is 19.8 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 892 seconds.
The 1-sigma cross-track error in the shadow position is 3197 km.

The object has an absolute magnitude Hv=6.5
Diameter=316.2 km assuming a 5% albedo -- 15.3 sec chord
Diameter=129.1 km assuming a 30% albedo -- 6.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 523717, (2029/02/22 16:34UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.0 -26:29:38  0.9 23.83 173
Nunki          18:57:04.2 -26:15:28  2.0 10.28 154
14 Sgr         18:16:01.0 -21:42:10  5.4  0.96 163
PPM 268070     18:15:05.8 -22:49:25  8.5  0.21 163
PPM 268073     18:15:11.2 -22:42:27  8.9  0.12 163
523717         18:14:47.8 -22:37:17 13.2       163
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 523717, (2029/02/22 16:34UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 23.83 173
Nunki          18:55:15.9 -26:17:49  2.0 10.28 154
14 Sgr         18:14:15.9 -21:42:48  5.4  0.96 163
PPM 268070     18:13:19.8 -22:50:02  8.5  0.21 163
PPM 268073     18:13:25.3 -22:43:04  8.9  0.12 163
523717         18:13:02.0 -22:37:52 13.2       163
Positions are for J2000

Event circumstances last updated at 2024/06/26 21:31:23 UT

Marc W. Buie, Southwest Research Institute

RECON