RECON: TNO occultation with 592147

Event between (592147) 14OA394 and star GA0820:22403001 with event index number of 2704668

Geocentric closest approach at 2024/10/13 14:20:36 UTC

J2000 position of star is 23:04:32.0 -06:47:37
Equinox of date position of star is 23:05:40.0 -06:40:32
Stellar brightness G=15.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 18 degrees from the moon. Moon is 79% illuminated.
TNO apparent brightness V=22.7

TNO is 38.8 AU from the Sun and 38.0 AU from the Earth.
The TNO is moving 18.8 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 224 seconds.
The 1-sigma cross-track error in the shadow position is 2722 km.

The TNO has an absolute magnitude Hv=6.8
Diameter=258.2 km assuming a 5% albedo -- 13.8 sec chord
Diameter=105.4 km assuming a 30% albedo -- 5.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 592147, (2024/10/13 14:21UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:59:00.8 -29:29:25  1.2 22.89  19
Markab         23:05:59.8 +15:20:21  2.5 22.00  35
82 Aqr         23:03:49.7 -06:26:25  6.0  0.54  18
PPM 207114     23:05:39.9 -06:33:21  7.8  0.11  18
592147         23:05:49.2 -06:39:35 15.6        18
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 592147, (2024/10/13 14:21UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 22.89  19
Markab         23:04:45.8 +15:12:18  2.5 22.00  35
82 Aqr         23:02:32.5 -06:34:27  6.0  0.54  18
PPM 207114     23:04:22.8 -06:41:24  7.8  0.11  18
592147         23:04:32.0 -06:47:37 15.6        18
Positions are for J2000

Event circumstances last updated at 2021/11/02 23:44:16 UT

Marc W. Buie, Southwest Research Institute

RECON