RECON: TNO occultation with 60620

Event between (60620) 00FD8 and star UC4-435-059130 with event index number of 119396

Geocentric closest approach at 2018/05/22 17:51:38 UTC

J2000 position of star is 14:09:35.2 -03:03:15
Equinox of date position of star is 14:10:26.3 -03:07:52
Stellar brightness R=16.4
Star is 52 degrees from the moon. Moon is 57% illuminated.
TNO apparent brightness V=22.3

TNO is 36.7 AU from the Sun and 35.8 AU from the Earth.
The TNO is moving 20.6 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 385 seconds.
The 1-sigma cross-track error in the shadow position is 3199 km.

The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 14.0 sec chord
Diameter=117.7 km assuming a 30% albedo -- 5.7 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 60620, (2018/05/22 17:52UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:09.9 -11:15:24  1.0 13.67  45
PPM 179251     14:14:37.8 -00:55:54  6.5  2.43  53
PPM 197292     14:12:18.1 -03:25:28  7.8  0.52  53
PPM 197259     14:10:19.5 -03:08:56  9.3  0.05  52
60620          14:10:32.4 -03:08:26 16.4        53
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 60620, (2018/05/22 17:52UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 13.67  45
PPM 179251     14:13:41.0 -00:50:46  6.5  2.43  53
PPM 197292     14:11:20.8 -03:20:18  7.8  0.52  53
PPM 197259     14:09:22.2 -03:03:45  9.3  0.05  52
60620          14:09:35.2 -03:03:15 16.4        52
Positions are for J2000

Event circumstances last updated at 2016/06/02 01:35:03 UT

Marc W. Buie, Southwest Research Institute

RECON