RECON: TNO occultation with 578992

Event between (578992) 14JL80 and star GA0700:20559419 with event index number of 2783313

Geocentric closest approach at 2029/05/29 14:20:55 UTC

J2000 position of star is 17:50:47.5 -19:06:29
Equinox of date position of star is 17:52:14.1 -19:06:47
Stellar brightness G=0.0, use SENSEUP=2 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 7 degrees from the moon. Moon is 96% illuminated.
Apparent brightness V=22.0

Object is 28.7 AU from the Sun and 27.8 AU from the Earth.
Apparent velocity is 21.3 km/sec on the sky relative to the star, or, 3.8 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 1048 km.

The object has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 9.4 sec chord
Diameter=81.5 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 578992, (2029/05/29 14:17UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.9 -26:29:40  0.9 20.11  24
35Eta Oph      17:12:04.0 -15:45:33  2.6 10.21  17
PPM 233754     17:57:38.8 -18:48:16  6.5  1.25   6
PPM 233697     17:54:03.4 -19:07:36  7.6  0.36   6
PPM 233657     17:52:20.0 -18:55:09  8.6  0.20   7
578992         17:52:31.5 -19:06:50  0.0         6
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 578992, (2029/05/29 14:17UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 20.11  24
35Eta Oph      17:10:22.7 -15:43:29  2.6 10.21  17
PPM 233754     17:55:55.0 -18:48:08  6.5  1.25   6
PPM 233697     17:52:19.4 -19:07:19  7.6  0.36   6
PPM 233657     17:50:36.1 -18:54:47  8.6  0.20   7
578992         17:50:47.5 -19:06:29  0.0         7
Positions are for J2000

Event circumstances last updated at 2024/06/27 21:00:22 UT

Marc W. Buie, Southwest Research Institute

RECON