RECON: TNO occultation with 14OC394

Event between 14OC394 and star GA0880:00019047 with event index number of 2511326

Geocentric closest approach at 2021/10/02 12:30:18 UTC

J2000 position of star is 00:13:18.9 -01:17:39
Equinox of date position of star is 00:14:25.7 -01:10:25
Stellar brightness G=12.6, use SENSEUP=16 with the MallinCam and and exposure time of 250 milli-seconds with the QHY174 camera.
Star is 136 degrees from the moon. Moon is 18% illuminated.
TNO apparent brightness V=22.8

TNO is 41.6 AU from the Sun and 40.6 AU from the Earth.
The TNO is moving 24.8 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 127 seconds.
The 1-sigma cross-track error in the shadow position is 2117 km.

The TNO has an absolute magnitude Hv=6.6
Diameter=287.1 km assuming a 5% albedo -- 11.6 sec chord
Diameter=117.2 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 14OC394, (2021/10/02 12:30UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:50.9 -29:30:23  1.2 33.56 158
Algenib        00:14:21.5 +15:18:16  2.8 16.48 127
PPM 181887     00:09:19.0 -02:19:36  6.1  1.72 138
PPM 174681     00:13:47.3 -01:06:22  7.6  0.17 137
14OC394        00:14:25.8 -01:10:24 12.6       136
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 14OC394, (2021/10/02 12:30UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 33.56 158
Algenib        00:13:14.2 +15:11:01  2.8 16.48 127
PPM 181887     00:08:12.1 -02:26:52  6.1  1.72 138
PPM 174681     00:12:40.4 -01:13:38  7.6  0.17 137
14OC394        00:13:18.9 -01:17:39 12.6       136
Positions are for J2000

Event circumstances last updated at 2021/09/16 01:00:37 UT

Marc W. Buie, Southwest Research Institute

RECON