RECON: TNO occultation with 06RJ103

Event between 06RJ103 and star GA1000:00309524 with event index number of 2015161

Geocentric closest approach at 2023/03/11 11:34:39 UTC

J2000 position of star is 03:30:17.6 +11:24:41
Equinox of date position of star is 03:31:30.6 +11:29:11
Stellar brightness G=15.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 162 degrees from the moon. Moon is 85% illuminated.
TNO apparent brightness V=22.4

TNO is 30.1 AU from the Sun and 30.5 AU from the Earth.
The TNO is moving 19.1 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 77 seconds.
The 1-sigma cross-track error in the shadow position is 1302 km.

The TNO has an absolute magnitude Hv=7.4
Diameter=196.8 km assuming a 5% albedo -- 10.3 sec chord
Diameter=80.3 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is 1:1
 
 
 
 
 
 
 
 

Star training set for 06RJ103, (2023/03/11 11:35UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:15.2 +16:33:15  0.8 16.71 146
Menkar         03:03:29.7 +04:10:46  2.5 10.08 165
PPM 119093     03:28:35.6 +12:48:54  6.5  1.51 162
PPM 119109     03:29:52.6 +11:28:10  8.0  0.41 162
PPM 119135     03:31:47.6 +11:36:00  9.9  0.12 161
06RJ103        03:31:33.9 +11:29:23 15.5       161
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 06RJ103, (2023/03/11 11:35UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 16.71 146
Menkar         03:02:16.8 +04:05:21  2.5 10.08 165
PPM 119093     03:27:18.7 +12:44:07  6.5  1.51 162
PPM 119109     03:28:36.3 +11:23:25  8.0  0.41 162
PPM 119135     03:30:31.2 +11:31:19  9.9  0.12 161
06RJ103        03:30:17.6 +11:24:41 15.5       162
Positions are for J2000

Event circumstances last updated at 2022/03/12 01:54:05 UT

Marc W. Buie, Southwest Research Institute

RECON