RECON: TNO occultation with 471165

Event between (471165) 10HE79 and star GA0720:09087709 with event index number of 2801640

Geocentric closest approach at 2029/07/08 14:11:45 UTC

J2000 position of star is 17:21:48.9 -16:46:21
Equinox of date position of star is 17:23:10.6 -16:47:37
Stellar brightness G=17.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 167 degrees from the moon. Moon is 10% illuminated.
Apparent brightness V=21.3

Object is 39.1 AU from the Sun and 38.2 AU from the Earth.
Apparent velocity is 21.9 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 112 seconds.
The 1-sigma cross-track error in the shadow position is 1449 km.

The object has an absolute magnitude Hv=5.3
Diameter=527.2 km assuming a 5% albedo -- 24.2 sec chord
Diameter=215.2 km assuming a 30% albedo -- 9.9 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 471165, (2029/07/08 14:12UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:13.3 -26:29:41  0.9 15.53 178
35Eta Oph      17:12:04.4 -15:45:34  2.6  2.94 168
PPM 232892     17:20:01.4 -16:20:27  5.9  0.96 167
PPM 233011     17:25:18.2 -16:03:49  7.0  0.85 166
PPM 232969     17:23:09.6 -17:01:50  9.6  0.25 167
471165         17:23:31.5 -16:47:57 17.0       166
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 471165, (2029/07/08 14:12UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 15.53 178
35Eta Oph      17:10:22.7 -15:43:29  2.6  2.94 168
PPM 232892     17:18:19.3 -16:18:42  5.9  0.96 167
PPM 233011     17:23:36.2 -16:02:18  7.0  0.85 166
PPM 232969     17:21:26.9 -17:00:14  9.6  0.25 167
471165         17:21:48.9 -16:46:21 17.0       166
Positions are for J2000

Event circumstances last updated at 2023/07/08 02:38:37 UT

Marc W. Buie, Southwest Research Institute

RECON