RECON: TNO occultation with 10TY53

Event between 10TY53 and star UC4-411-003047 with event index number of 201838

Geocentric closest approach at 2019/07/26 18:16:24 UTC

J2000 position of star is 02:38:27.4 -07:48:01
Equinox of date position of star is 02:39:19.4 -07:43:30
Stellar brightness R=15.3, use SENSEUP=128
Star is 26 degrees from the moon. Moon is 33% illuminated.
TNO apparent brightness V=20.6

TNO is 29.1 AU from the Sun and 29.1 AU from the Earth.
The TNO is moving 12.2 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 396 seconds.
The 1-sigma cross-track error in the shadow position is 3939 km.

The TNO has an absolute magnitude Hv=5.7
Diameter=436.5 km assuming a 5% albedo -- 35.7 sec chord
Diameter=178.2 km assuming a 30% albedo -- 14.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 10TY53, (2019/07/26 18:16UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:02.7 +16:32:50  0.8 37.88  16
68Omi Cet      02:20:20.2 -02:53:23  2.0  6.77  24
80 Cet         02:36:57.9 -07:44:51  5.5  0.61  26
PPM 184865     02:39:58.6 -08:50:40  7.5  1.14  26
PPM 184835     02:38:19.7 -07:50:52  9.5  0.30  26
10TY53         02:39:25.3 -07:43:00 15.3        25
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 10TY53, (2019/07/26 18:16UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 37.88  16
68Omi Cet      02:19:20.8 -02:58:44  2.0  6.77  24
80 Cet         02:36:00.0 -07:49:55  5.5  0.61  26
PPM 184865     02:39:01.1 -08:55:41  7.5  1.14  26
PPM 184835     02:37:21.9 -07:55:55  9.5  0.30  26
10TY53         02:38:27.4 -07:48:01 15.3        25
Positions are for J2000

Event circumstances last updated at 2017/08/05 16:41:24 UT

Marc W. Buie, Southwest Research Institute

RECON