RECON: TNO occultation with 119951

Event between (119951) 02KX14 and star GA0660:34659884 with event index number of 2716252

Geocentric closest approach at 2029/02/27 22:27:10 UTC

J2000 position of star is 18:25:08.3 -23:23:55
Equinox of date position of star is 18:26:36.5 -23:23:01
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 127 degrees from the moon. Moon is 99% illuminated.
Apparent brightness V=20.7

Object is 38.6 AU from the Sun and 39.0 AU from the Earth.
Apparent velocity is 18.6 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 260 seconds.
The 1-sigma cross-track error in the shadow position is 1433 km.

The object has an absolute magnitude Hv=4.7
Diameter=691.9 km assuming a 5% albedo -- 37.0 sec chord
Diameter=282.4 km assuming a 30% albedo -- 15.1 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 119951, (2029/02/27 22:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.0 -26:29:39  0.9 26.36 101
Nunki          18:57:04.3 -26:15:28  2.0  7.42 133
PPM 268291     18:23:19.1 -24:53:57  6.0  1.73 126
PPM 268394     18:27:30.1 -23:03:44  8.3  0.35 127
PPM 268397     18:27:34.0 -23:12:43  9.8  0.23 127
119951         18:26:54.7 -23:22:49 15.4       127
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 119951, (2029/02/27 22:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 26.36 101
Nunki          18:55:15.9 -26:17:49  2.0  7.42 133
PPM 268291     18:21:31.4 -24:54:54  6.0  1.73 126
PPM 268394     18:25:43.9 -23:04:51  8.3  0.35 127
PPM 268397     18:25:47.7 -23:13:51  9.8  0.23 127
119951         18:25:08.3 -23:23:55 15.4       127
Positions are for J2000

Event circumstances last updated at 2024/02/27 04:16:36 UT

Marc W. Buie, Southwest Research Institute

RECON