RECON: TNO occultation with 14KX101

Event between 14KX101 and star GA0700:09361195 with event index number of 2502544

Geocentric closest approach at 2022/07/05 18:26:20 UTC

J2000 position of star is 17:18:19.8 -19:59:34
Equinox of date position of star is 17:19:38.7 -20:00:54
Stellar brightness G=14.4, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 82 degrees from the moon. Moon is 37% illuminated.
TNO apparent brightness V=22.6

TNO is 31.9 AU from the Sun and 31.0 AU from the Earth.
The TNO is moving 21.2 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 302 seconds.
The 1-sigma cross-track error in the shadow position is 1377 km.

The TNO has an absolute magnitude Hv=7.5
Diameter=188.8 km assuming a 5% albedo -- 8.9 sec chord
Diameter=77.1 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 14KX101, (2022/07/05 18:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.5 -26:28:48  0.9 12.94  72
35Eta Oph      17:11:40.2 -15:45:04  2.6  4.67  80
40Xi Oph       17:22:21.4 -21:08:06  3.9  1.29  83
PPM 232932     17:21:21.6 -20:00:11  8.4  0.40  83
PPM 232897     17:19:51.6 -19:59:51  9.8  0.05  82
14KX101        17:19:39.8 -20:00:55 14.4        82
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, (2022/07/05 18:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 12.94  72
35Eta Oph      17:10:22.7 -15:43:29  2.6  4.67  80
40Xi Oph       17:21:00.8 -21:06:51  3.9  1.29  83
PPM 232932     17:20:01.6 -19:58:54  8.4  0.40  83
PPM 232897     17:18:31.6 -19:58:31  9.8  0.05  82
14KX101        17:18:19.8 -19:59:34 14.4        82
Positions are for J2000

Event circumstances last updated at 2022/03/14 01:05:15 UT

Marc W. Buie, Southwest Research Institute

RECON