RECON: TNO occultation with 11UZ410

Event between 11UZ410 and star GA1080:00289886 with event index number of 277714

Geocentric closest approach at 2020/07/17 01:49:38 UTC

J2000 position of star is 02:47:05.5 +19:56:37
Equinox of date position of star is 02:48:14.2 +20:01:38
Stellar brightness G=16.3, use SENSEUP=128
Star is 26 degrees from the moon. Moon is 14% illuminated.
TNO apparent brightness V=26.1

TNO is 39.5 AU from the Sun and 39.9 AU from the Earth.
The TNO is moving 15.0 km/sec on the sky relative to the star, or, 1.9 arcsec/hr.
The 1-sigma error in the time of the event is 724 seconds.
The 1-sigma cross-track error in the shadow position is 5561 km.

The TNO has an absolute magnitude Hv=10.0
Diameter=127.1 km assuming a 5% albedo -- 4.0 sec chord
Diameter=51.9 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 11UZ410, (2020/07/17 01:50UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:06.1 +16:32:56  0.8 26.04   4
Hamal          02:08:20.2 +23:33:31  2.0  9.91  35
34Mu Ari       02:43:31.7 +20:05:53  5.7  1.11  27
PPM 091988     02:49:29.9 +20:05:41  8.3  0.30  25
PPM 118525     02:47:25.5 +20:02:47  9.9  0.20  26
11UZ410        02:48:15.4 +20:01:43 16.3        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 11UZ410, (2020/07/17 01:50UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 26.04   4
Hamal          02:07:10.7 +23:27:42  2.0  9.91  35
34Mu Ari       02:42:22.0 +20:00:41  5.7  1.11  27
PPM 091988     02:48:20.0 +20:00:36  8.3  0.30  25
PPM 118525     02:46:15.7 +19:57:40  9.9  0.20  26
11UZ410        02:47:05.5 +19:56:37 16.3        26
Positions are for J2000

Event circumstances last updated at 2020/03/10 21:48:31 UT

Marc W. Buie, Southwest Research Institute

RECON