RECON: TNO occultation with 02GR32

Event between 02GR32 and star GA0680:10265974 with event index number of 2764365

Geocentric closest approach at 2024/06/09 12:02:33 UTC

J2000 position of star is 17:14:31.1 -20:18:20
Equinox of date position of star is 17:15:56.0 -20:19:52
Stellar brightness G=16.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 143 degrees from the moon. Moon is 10% illuminated.
Apparent brightness V=23.9

Object is 33.3 AU from the Sun and 32.3 AU from the Earth.
Apparent velocity is 24.0 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
The 1-sigma error in the time of the event is 982 seconds.
The 1-sigma cross-track error in the shadow position is 5892 km.

The object has an absolute magnitude Hv=8.7
Diameter=111.7 km assuming a 5% albedo -- 4.7 sec chord
Diameter=45.6 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 02GR32, (2024/06/09 12:03UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.6 -26:29:03  0.9 12.02 134
35Eta Oph      17:11:46.9 -15:45:12  2.6  4.69 140
40Xi Oph       17:22:28.4 -21:08:13  3.9  1.72 144
PPM 232820     17:16:20.3 -19:53:22  8.3  0.45 143
PPM 266599     17:16:04.8 -20:22:16  9.8  0.05 143
02GR32         17:15:58.1 -20:19:55 16.0       143
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 02GR32, (2024/06/09 12:03UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 12.02 134
35Eta Oph      17:10:22.7 -15:43:29  2.6  4.69 140
40Xi Oph       17:21:00.8 -21:06:51  3.9  1.72 144
PPM 232820     17:14:53.6 -19:51:48  8.3  0.45 143
PPM 266599     17:14:37.8 -20:20:41  9.8  0.05 143
02GR32         17:14:31.1 -20:18:20 16.0       143
Positions are for J2000

Event circumstances last updated at 2023/11/04 04:13:15 UT

Marc W. Buie, Southwest Research Institute

RECON