RECON: TNO occultation with 469505

Event between (469505) 03FE128 and star GA0700:08303755 with event index number of 2818742

Geocentric closest approach at 2029/08/01 14:46:35 UTC

J2000 position of star is 17:07:35.0 -19:26:06
Equinox of date position of star is 17:09:01.6 -19:27:56
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 132 degrees from the moon. Moon is 58% illuminated.
Apparent brightness V=22.1

Object is 37.3 AU from the Sun and 36.6 AU from the Earth.
Apparent velocity is 12.8 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 237 seconds.
The 1-sigma cross-track error in the shadow position is 1574 km.

The object has an absolute magnitude Hv=6.3
Diameter=322.1 km assuming a 5% albedo -- 25.8 sec chord
Diameter=131.5 km assuming a 30% albedo -- 10.5 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 
 
 

Star training set for 469505, (2029/08/01 14:45UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:13.6 -26:29:42  0.9 11.23 141
35Eta Oph      17:12:04.6 -15:45:34  2.6  3.77 131
PPM 266364     17:06:30.7 -20:32:01  6.5  1.25 133
PPM 232670     17:10:53.7 -19:42:59  8.2  0.44 132
PPM 232624     17:08:51.2 -19:32:38  9.0  0.13 132
469505         17:09:19.6 -19:28:19 12.6       132
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 469505, (2029/08/01 14:45UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 11.23 141
35Eta Oph      17:10:22.7 -15:43:29  2.6  3.77 131
PPM 266364     17:04:45.3 -20:29:41  6.5  1.25 133
PPM 232670     17:09:08.9 -19:40:50  8.2  0.44 132
PPM 232624     17:07:06.6 -19:30:25  9.0  0.13 132
469505         17:07:35.0 -19:26:06 12.6       132
Positions are for J2000

Event circumstances last updated at 2024/06/27 21:04:50 UT

Marc W. Buie, Southwest Research Institute

RECON