RECON: TNO occultation with 02GW32

Event between 02GW32 and star GA0640:11230346 with event index number of 1268449

Geocentric closest approach at 2024/05/11 14:31:43 UTC

J2000 position of star is 17:07:46.0 -25:03:55
Equinox of date position of star is 17:09:13.8 -25:05:41
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 162 degrees from the moon. Moon is 15% illuminated.
Apparent brightness V=23.0

Object is 37.0 AU from the Sun and 36.1 AU from the Earth.
Apparent velocity is 21.4 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 1338 seconds.
The 1-sigma cross-track error in the shadow position is 2267 km.

The object has an absolute magnitude Hv=7.3
Diameter=212.8 km assuming a 5% albedo -- 10.0 sec chord
Diameter=86.9 km assuming a 30% albedo -- 4.1 sec chord
Dynamical classification is 5:4E
 
 
 
 
 
 
 
 

Star training set for 02GW32, (2024/05/11 14:32UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.3 -26:29:02  0.9  8.74 154
23Tau Sco      16:37:24.2 -28:15:52  2.8  7.79 155
PPM 266416     17:08:24.0 -26:32:38  6.3  1.46 162
PPM 266438     17:09:25.9 -25:01:42  7.2  0.08 162
02GW32         17:09:15.7 -25:05:44 16.8       162
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 02GW32, (2024/05/11 14:32UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  8.74 154
23Tau Sco      16:35:52.9 -28:12:58  2.8  7.79 155
PPM 266416     17:06:53.2 -26:30:47  6.3  1.46 162
PPM 266438     17:07:56.2 -24:59:54  7.2  0.08 162
02GW32         17:07:46.0 -25:03:55 16.8       162
Positions are for J2000

Event circumstances last updated at 2023/11/04 04:11:48 UT

Marc W. Buie, Southwest Research Institute

RECON