RECON: TNO occultation with 14KX101

Event between 14KX101 and star GA0680:11008547 with event index number of 2502512

Geocentric closest approach at 2022/06/06 20:06:48 UTC

J2000 position of star is 17:21:21.1 -20:01:36
Equinox of date position of star is 17:22:40.0 -20:02:49
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 104 degrees from the moon. Moon is 42% illuminated.
TNO apparent brightness V=22.5

TNO is 31.9 AU from the Sun and 30.9 AU from the Earth.
The TNO is moving 23.5 km/sec on the sky relative to the star, or, 3.8 arcsec/hr.
The 1-sigma error in the time of the event is 275 seconds.
The 1-sigma cross-track error in the shadow position is 1394 km.

The TNO has an absolute magnitude Hv=7.5
Diameter=188.8 km assuming a 5% albedo -- 8.0 sec chord
Diameter=77.1 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 14KX101, (2022/06/06 20:07UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.2 -26:28:47  0.9 13.53  93
35Eta Oph      17:11:40.0 -15:45:04  2.6  5.03 100
40Xi Oph       17:22:21.1 -21:08:06  3.9  1.09 104
PPM 232932     17:21:21.4 -20:00:11  8.4  0.31 103
PPM 266760     17:23:26.8 -20:05:37  9.1  0.19 104
14KX101        17:22:40.8 -20:02:50 16.3       104
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, (2022/06/06 20:07UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 13.53  93
35Eta Oph      17:10:22.7 -15:43:29  2.6  5.03 100
40Xi Oph       17:21:00.8 -21:06:51  3.9  1.09 104
PPM 232932     17:20:01.6 -19:58:54  8.4  0.31 103
PPM 266760     17:22:07.0 -20:04:25  9.1  0.19 104
14KX101        17:21:21.1 -20:01:36 16.3       103
Positions are for J2000

Event circumstances last updated at 2022/03/14 01:03:02 UT

Marc W. Buie, Southwest Research Institute

RECON