RECON: TNO occultation with 14WR510

Event between 14WR510 and star GA1000:02635157 with event index number of 2560232

Geocentric closest approach at 2022/12/01 21:22:54 UTC

J2000 position of star is 07:11:06.7 +11:22:52
Equinox of date position of star is 07:12:19.9 +11:20:36
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 111 degrees from the moon. Moon is 64% illuminated.
TNO apparent brightness V=22.4

TNO is 30.0 AU from the Sun and 29.2 AU from the Earth.
The TNO is moving 18.3 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 163 seconds.
The 1-sigma cross-track error in the shadow position is 1164 km.

The TNO has an absolute magnitude Hv=7.5
Diameter=195.0 km assuming a 5% albedo -- 10.6 sec chord
Diameter=79.6 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 14WR510, (2022/12/01 21:24UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:43.0 +27:58:08  1.1 18.47 118
Alhena         06:39:02.1 +16:22:40  1.9  9.53 103
PPM 123740     07:15:49.2 +12:04:28  5.6  1.12 111
PPM 123705     07:14:25.9 +11:35:32  8.1  0.56 111
PPM 123644     07:11:47.3 +11:08:29  9.4  0.25 110
PPM 123662     07:12:30.6 +11:10:58 11.0  0.16 111
14WR510        07:12:23.0 +11:20:31 16.3       111
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 14WR510, (2022/12/01 21:24UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 18.47 118
Alhena         06:37:42.8 +16:23:57  1.9  9.53 103
PPM 123740     07:14:32.5 +12:06:56  5.6  1.12 111
PPM 123705     07:13:09.4 +11:37:57  8.1  0.56 111
PPM 123644     07:10:31.1 +11:10:50  9.4  0.25 110
PPM 123662     07:11:14.3 +11:13:20 11.0  0.16 111
14WR510        07:11:06.7 +11:22:52 16.3       111
Positions are for J2000

Event circumstances last updated at 2021/12/18 01:50:49 UT

Marc W. Buie, Southwest Research Institute

RECON