RECON: TNO occultation with 14WR510

Event between 14WR510 and star GA1020:02161412 with event index number of 1059789

Geocentric closest approach at 2021/03/02 01:47:43 UTC

J2000 position of star is 06:42:24.5 +12:26:28
Equinox of date position of star is 06:43:35.4 +12:25:09
Stellar brightness G=12.9, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 99 degrees from the moon. Moon is 90% illuminated.
TNO apparent brightness V=22.4

TNO is 29.8 AU from the Sun and 29.3 AU from the Earth.
The TNO is moving 10.0 km/sec on the sky relative to the star, or, 1.7 arcsec/hr.
The 1-sigma error in the time of the event is 520 seconds.
The 1-sigma cross-track error in the shadow position is 2903 km.

The TNO has an absolute magnitude Hv=7.5
Diameter=192.3 km assuming a 5% albedo -- 19.3 sec chord
Diameter=78.5 km assuming a 30% albedo -- 7.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 14WR510, (2021/03/02 01:48UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:19.1 +07:24:33  0.4 12.67 110
Alhena         06:38:56.1 +16:22:46  1.9  4.12 100
31Xi Gem       06:46:28.6 +12:52:16  3.4  0.84  98
PPM 122944     06:44:55.0 +12:00:51  7.7  0.52  98
PPM 122895     06:43:10.2 +12:32:45  9.1  0.16  99
14WR510        06:43:35.7 +12:25:08 12.9        98
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, (2021/03/02 01:48UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 12.67 110
Alhena         06:37:42.8 +16:23:57  1.9  4.12 100
31Xi Gem       06:45:17.2 +12:53:40  3.4  0.84  98
PPM 122944     06:43:44.0 +12:02:12  7.7  0.52  98
PPM 122895     06:41:58.9 +12:34:03  9.1  0.16  99
14WR510        06:42:24.5 +12:26:28 12.9        99
Positions are for J2000

Event circumstances last updated at 2021/01/18 21:59:15 UT

Marc W. Buie, Southwest Research Institute

RECON