RECON: TNO occultation with 05XN113

Event between 05XN113 and star GA1140:00801517 with event index number of 1008510

Geocentric closest approach at 2020/11/10 00:42:06 UTC

J2000 position of star is 04:44:41.5 +25:47:12
Equinox of date position of star is 04:45:56.0 +25:49:22
Stellar brightness G=14.8, use SENSEUP=128
Star is 83 degrees from the moon. Moon is 34% illuminated.
TNO apparent brightness V=25.7

TNO is 37.1 AU from the Sun and 36.3 AU from the Earth.
The TNO is moving 21.9 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 169 seconds.
The 1-sigma cross-track error in the shadow position is 1680 km.

The TNO has an absolute magnitude Hv=10.0
Diameter=302.0 km assuming a 5% albedo -- 2.7 sec chord
Diameter=123.3 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is 5:2EEE+5:2EII
 
 
 
 
 
 
 
 

Star training set for 05XN113, (2020/11/10 00:42UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:07.2 +16:32:58  0.8  9.50  87
3Iot Aur       04:58:21.3 +33:11:50  2.7  7.85  79
PPM 093661     04:40:39.7 +25:15:28  6.3  1.33  84
PPM 093748     04:47:29.2 +26:04:18  7.4  0.42  83
PPM 093735     04:45:59.3 +25:58:23 10.8  0.15  83
05XN113        04:45:58.5 +25:49:26 14.8        83
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 05XN113, (2020/11/10 00:42UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  9.50  87
3Iot Aur       04:56:59.6 +33:09:58  2.7  7.85  79
PPM 093661     04:39:23.2 +25:13:05  6.3  1.33  84
PPM 093748     04:46:12.1 +26:02:07  7.4  0.42  83
PPM 093735     04:44:42.3 +25:56:09 10.8  0.15  83
05XN113        04:44:41.5 +25:47:12 14.8        83
Positions are for J2000

Event circumstances last updated at 2020/03/09 22:27:35 UT

Marc W. Buie, Southwest Research Institute

RECON