RECON: TNO occultation with 14UQ229

Event between 14UQ229 and star GA1040:00246188 with event index number of 1009905

Geocentric closest approach at 2020/11/15 22:14:58 UTC

J2000 position of star is 02:36:02.4 +15:55:14
Equinox of date position of star is 02:37:09.4 +16:00:28
Stellar brightness G=16.0, use SENSEUP=128
Star is 158 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=24.3

TNO is 27.3 AU from the Sun and 26.3 AU from the Earth.
The TNO is moving 24.5 km/sec on the sky relative to the star, or, 4.6 arcsec/hr.
The 1-sigma error in the time of the event is 118 seconds.
The 1-sigma cross-track error in the shadow position is 1514 km.

The TNO has an absolute magnitude Hv=10.0
Diameter=69.8 km assuming a 5% albedo -- 2.5 sec chord
Diameter=28.5 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 14UQ229, (2020/11/15 22:15UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:07.3 +16:32:59  0.8 28.76 173
Hamal          02:08:21.3 +23:33:37  2.0 10.15 151
29 Ari         02:34:02.9 +15:07:33  6.0  1.16 157
PPM 118331     02:34:41.4 +15:40:26  9.4  0.69 157
PPM 118366     02:36:59.6 +15:47:35 10.5  0.22 157
14UQ229        02:37:11.7 +16:00:38 16.0       158
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 14UQ229, (2020/11/15 22:15UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 28.76 173
Hamal          02:07:10.7 +23:27:42  2.0 10.15 151
29 Ari         02:32:54.1 +15:02:05  6.0  1.16 157
PPM 118331     02:33:32.3 +15:34:59  9.4  0.69 157
PPM 118366     02:35:50.5 +15:42:10 10.5  0.22 157
14UQ229        02:36:02.4 +15:55:14 16.0       158
Positions are for J2000

Event circumstances last updated at 2020/03/12 20:49:57 UT

Marc W. Buie, Southwest Research Institute

RECON