RECON: TNO occultation with 02VV130

Event between 02VV130 and star GA1060:00370262 with event index number of 1183213

Geocentric closest approach at 2023/01/07 12:23:39 UTC

J2000 position of star is 03:33:13.7 +16:54:30
Equinox of date position of star is 03:34:27.9 +16:58:50
Stellar brightness G=10.7, use SENSEUP=4 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 58 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=23.1

TNO is 35.4 AU from the Sun and 34.7 AU from the Earth.
The TNO is moving 13.5 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 493 seconds.
The 1-sigma cross-track error in the shadow position is 3242 km.

The TNO has an absolute magnitude Hv=7.5
Diameter=188.8 km assuming a 5% albedo -- 14.1 sec chord
Diameter=77.1 km assuming a 30% albedo -- 5.8 sec chord
Dynamical classification is 5:3EE
 
 
 
 
 
 
 
 

Star training set for 02VV130, (2023/01/07 12:02UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.6 +16:33:13  0.8 15.01  44
Menkar         03:03:29.1 +04:10:43  2.5 14.90  70
PPM 119253     03:40:44.1 +16:36:36  6.2  1.53  57
PPM 119166     03:34:15.7 +16:40:27  7.6  0.32  58
02VV130        03:34:32.0 +16:59:05 10.7        58
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 02VV130, (2023/01/07 12:02UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 15.01  44
Menkar         03:02:16.8 +04:05:21  2.5 14.90  70
PPM 119253     03:39:25.8 +16:32:11  6.2  1.53  57
PPM 119166     03:32:57.5 +16:35:52  7.6  0.32  58
02VV130        03:33:13.7 +16:54:30 10.7        58
Positions are for J2000

Event circumstances last updated at 2021/10/27 00:01:22 UT

Marc W. Buie, Southwest Research Institute

RECON