RECON: TNO occultation with 14KX101

Event between 14KX101 and star GA0680:13782602 with event index number of 2502897

Geocentric closest approach at 2023/04/27 14:53:15 UTC

J2000 position of star is 17:34:21.4 -20:19:14
Equinox of date position of star is 17:35:44.5 -20:20:04
Stellar brightness G=13.0, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 139 degrees from the moon. Moon is 48% illuminated.
Apparent brightness V=22.7

Object is 32.1 AU from the Sun and 31.4 AU from the Earth.
Apparent velocity is 14.2 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 559 seconds.
The 1-sigma cross-track error in the shadow position is 1959 km.

The object has an absolute magnitude Hv=7.5
Diameter=188.8 km assuming a 5% albedo -- 13.3 sec chord
Diameter=77.1 km assuming a 30% albedo -- 5.4 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 14KX101, (2023/04/27 14:53UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:50.5 -26:28:54  0.9 16.09 126
35Eta Oph      17:11:43.0 -15:45:08  2.6  7.32 132
PPM 267109     17:40:09.0 -21:55:28  6.4  1.89 140
PPM 267057     17:37:46.8 -20:59:25  8.4  0.81 140
PPM 267023     17:36:02.9 -20:18:02  8.8  0.08 139
14KX101        17:35:44.6 -20:20:04 13.0       139
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 14KX101, (2023/04/27 14:53UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.09 126
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.32 132
PPM 267109     17:38:44.8 -21:54:46  6.4  1.89 140
PPM 267057     17:36:23.2 -20:58:38  8.4  0.81 140
PPM 267023     17:34:39.7 -20:17:12  8.8  0.08 139
14KX101        17:34:21.4 -20:19:14 13.0       139
Positions are for J2000

Event circumstances last updated at 2023/04/19 02:32:55 UT

Marc W. Buie, Southwest Research Institute

RECON