RECON: TNO occultation with 455502

Event between (455502) 03UZ413 and star UC4-486-005210 with event index number of 164504

Geocentric closest approach at 2018/11/30 19:23:09 UTC

J2000 position of star is 03:41:22.5 +07:08:05
Equinox of date position of star is 03:42:20.1 +07:11:29
Stellar brightness R=14.6, use SENSEUP=128
Star is 114 degrees from the moon. Moon is 41% illuminated.
TNO apparent brightness V=20.7

TNO is 44.0 AU from the Sun and 43.1 AU from the Earth.
The TNO is moving 25.2 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 124 seconds.
The 1-sigma cross-track error in the shadow position is 1728 km.

The TNO has an absolute magnitude Hv=4.3
Diameter=831.8 km assuming a 5% albedo -- 33.0 sec chord
Diameter=339.6 km assuming a 30% albedo -- 13.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 455502, (2018/11/30 19:23UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.5 +16:32:45  0.8 16.30  99
Menkar         03:03:16.2 +04:09:46  2.5 10.19 124
29 Tau         03:46:40.9 +06:06:29  5.3  1.52 114
PPM 146835     03:43:21.6 +07:36:42  8.5  0.48 114
PPM 146806     03:41:44.3 +06:46:35  8.7  0.45 115
PPM 146823     03:42:31.4 +06:55:56 10.6  0.26 114
455502         03:42:23.3 +07:11:40 14.6       114
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 455502, (2018/11/30 19:23UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 16.30  99
Menkar         03:02:16.8 +04:05:22  2.5 10.19 124
29 Tau         03:45:40.5 +06:03:00  5.3  1.52 114
PPM 146835     03:42:20.7 +07:33:08  8.5  0.48 114
PPM 146806     03:40:43.7 +06:43:00  8.7  0.45 115
PPM 146823     03:41:30.8 +06:52:21 10.6  0.26 114
455502         03:41:22.5 +07:08:05 14.6       114
Positions are for J2000

Event circumstances last updated at 2017/12/05 19:05:11 UT

Marc W. Buie, Southwest Research Institute

RECON