RECON: TNO occultation with 03UV292

Event between 03UV292 and star UC4-541-014840 with event index number of 104160

Geocentric closest approach at 2018/02/13 23:51:22 UTC

J2000 position of star is 05:24:45.2 +18:02:15
Equinox of date position of star is 05:25:45.9 +18:03:08
Stellar brightness R=16.2, use SENSEUP=128
Star is 137 degrees from the moon. Moon is 3% illuminated.
TNO apparent brightness V=23.1

TNO is 36.9 AU from the Sun and 36.5 AU from the Earth.
The TNO is moving 9.1 km/sec on the sky relative to the star, or, 1.2 arcsec/hr.
The 1-sigma error in the time of the event is 1102 seconds.
The 1-sigma cross-track error in the shadow position is 5136 km.

The TNO has an absolute magnitude Hv=7.3
Diameter=210.9 km assuming a 5% albedo -- 23.3 sec chord
Diameter=86.1 km assuming a 30% albedo -- 9.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 03UV292, (2018/02/13 23:51UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:36:57.8 +16:32:40  0.8 11.75 125
Alnath         05:27:26.3 +28:37:16  1.6 10.57 138
115 Tau        05:28:13.6 +17:58:34  5.4  0.58 138
PPM 120901     05:24:34.4 +18:36:59  8.4  0.64 137
PPM 120926     05:25:46.4 +18:05:48  9.5  0.04 137
03UV292        05:25:48.7 +18:03:10 16.2       137
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 03UV292, (2018/02/13 23:51UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 11.75 125
Alnath         05:26:17.5 +28:36:24  1.6 10.57 138
115 Tau        05:27:10.1 +17:57:43  5.4  0.58 138
PPM 120901     05:23:30.6 +18:36:03  8.4  0.64 137
PPM 120926     05:24:42.8 +18:04:54  9.5  0.04 137
03UV292        05:24:45.2 +18:02:15 16.2       137
Positions are for J2000

Event circumstances last updated at 2017/04/24 16:18:45 UT

Marc W. Buie, Southwest Research Institute

RECON