RECON: TNO occultation with 578835

Event between (578835) 14GL54 and star GA0800:06503810 with event index number of 2729343

Geocentric closest approach at 2029/03/12 15:22:47 UTC

J2000 position of star is 17:28:27.9 -09:42:17
Equinox of date position of star is 17:29:48.8 -09:43:23
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 62 degrees from the moon. Moon is 6% illuminated.
Apparent brightness V=22.1

Object is 37.5 AU from the Sun and 37.5 AU from the Earth.
Apparent velocity is 7.1 km/sec on the sky relative to the star, or, 0.9 arcsec/hr.
The 1-sigma error in the time of the event is 271 seconds.
The 1-sigma cross-track error in the shadow position is 2311 km.

The object has an absolute magnitude Hv=6.2
Diameter=338.9 km assuming a 5% albedo -- 48.6 sec chord
Diameter=138.3 km assuming a 30% albedo -- 19.9 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 578835, (2029/03/12 15:23UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.1 -26:29:39  0.9 21.79  75
35Eta Oph      17:12:03.3 -15:45:32  2.6  7.46  66
PPM 233365     17:39:46.8 -10:56:28  5.7  2.68  60
PPM 200710     17:30:53.3 -10:00:42  7.8  0.35  62
PPM 200706     17:30:45.6 -09:43:50  9.7  0.17  62
578835         17:30:04.3 -09:43:35 16.5        62
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 578835, (2029/03/12 15:23UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 21.79  75
35Eta Oph      17:10:22.8 -15:43:28  2.6  7.46  66
PPM 233365     17:38:09.5 -10:55:35  5.7  2.68  60
PPM 200710     17:29:16.7 -09:59:26  7.8  0.35  62
PPM 200706     17:29:09.2 -09:42:33  9.7  0.17  62
578835         17:28:27.9 -09:42:17 16.5        62
Positions are for J2000

Event circumstances last updated at 2024/06/26 21:32:56 UT

Marc W. Buie, Southwest Research Institute

RECON