RECON: TNO occultation with 06UX184

Event between 06UX184 and star GA1360:02894689 with event index number of 2016315

Geocentric closest approach at 2021/08/28 15:23:53 UTC

J2000 position of star is 05:04:21.7 +47:34:13
Equinox of date position of star is 05:05:59.1 +47:35:55
Stellar brightness G=15.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 41 degrees from the moon. Moon is 66% illuminated.
TNO apparent brightness V=22.3

TNO is 20.9 AU from the Sun and 21.2 AU from the Earth.
The TNO is moving 20.8 km/sec on the sky relative to the star, or, 4.9 arcsec/hr.
The 1-sigma error in the time of the event is 187 seconds.
The 1-sigma cross-track error in the shadow position is 4140 km.

The TNO has an absolute magnitude Hv=8.8
Diameter=105.7 km assuming a 5% albedo -- 5.1 sec chord
Diameter=43.1 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 06UX184, (2021/08/28 15:24UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:10.0 +16:33:04  0.8 31.61  23
34Bet Aur      06:01:07.1 +44:56:50  1.9  9.87  47
PPM 047798     05:12:19.9 +46:59:11  6.0  1.24  41
PPM 047672     05:05:40.5 +47:41:37  8.1  0.11  41
06UX184        05:05:59.1 +47:35:55 15.5        41
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 06UX184, (2021/08/28 15:24UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 31.61  23
34Bet Aur      05:59:31.6 +44:56:51  1.9  9.87  47
PPM 047798     05:10:43.0 +46:57:40  6.0  1.24  41
PPM 047672     05:04:03.0 +47:39:53  8.1  0.11  41
06UX184        05:04:21.7 +47:34:13 15.5        41
Positions are for J2000

Event circumstances last updated at 2021/08/26 00:55:56 UT

Marc W. Buie, Southwest Research Institute

RECON