RECON: TNO occultation with 11KN36

Event between 11KN36 and star GA1060:03224208 with event index number of 2363976

Geocentric closest approach at 2021/10/18 14:33:35 UTC

J2000 position of star is 09:15:15.7 +17:12:14
Equinox of date position of star is 09:16:28.4 +17:06:45
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 134 degrees from the moon. Moon is 96% illuminated.
TNO apparent brightness V=23.2

TNO is 42.0 AU from the Sun and 42.3 AU from the Earth.
The TNO is moving 14.8 km/sec on the sky relative to the star, or, 1.7 arcsec/hr.
The 1-sigma error in the time of the event is 521 seconds.
The 1-sigma cross-track error in the shadow position is 2598 km.

The TNO has an absolute magnitude Hv=6.8
Diameter=266.7 km assuming a 5% albedo -- 18.0 sec chord
Diameter=108.9 km assuming a 30% albedo -- 7.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 11KN36, (2021/10/18 14:32UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:31.8 +11:51:35  1.3 13.87 147
PPM 126361     09:22:27.4 +15:16:40  6.4  2.33 135
PPM 126293     09:18:50.7 +16:36:45  8.1  0.76 134
PPM 126256     09:16:37.4 +17:02:36  9.8  0.08 134
11KN36         09:16:28.6 +17:06:44 13.2       134
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 11KN36, (2021/10/18 14:32UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3 13.87 147
PPM 126361     09:21:15.3 +15:22:17  6.4  2.33 135
PPM 126293     09:17:38.1 +16:42:18  8.1  0.76 134
PPM 126256     09:15:24.5 +17:08:05  9.8  0.08 134
11KN36         09:15:15.7 +17:12:14 13.2       134
Positions are for J2000

Event circumstances last updated at 2021/10/03 01:33:58 UT

Marc W. Buie, Southwest Research Institute

RECON