RECON: TNO occultation with 523682

Event between (523682) 14CN23 and star GA0520:13101821 with event index number of 2648505

Geocentric closest approach at 2023/05/10 04:53:04 UTC

J2000 position of star is 16:50:44.8 -36:58:51
Equinox of date position of star is 16:52:18.9 -37:01:09
Stellar brightness G=16.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 33 degrees from the moon. Moon is 76% illuminated.
Apparent brightness V=21.3

Object is 17.2 AU from the Sun and 16.3 AU from the Earth.
Apparent velocity is 19.8 km/sec on the sky relative to the star, or, 6.0 arcsec/hr.
The 1-sigma error in the time of the event is 224 seconds.
The 1-sigma cross-track error in the shadow position is 1071 km.

The object has an absolute magnitude Hv=8.9
Diameter=104.7 km assuming a 5% albedo -- 5.1 sec chord
Diameter=42.8 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 523682, (2023/05/10 04:53UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:50.6 -26:28:54  0.9 11.48  37
26Eps Sco      16:51:40.9 -34:20:00  2.3  2.69  32
PPM 295545     16:52:34.8 -37:33:08  5.7  0.54  32
PPM 295544     16:52:31.6 -36:47:39  8.5  0.23  32
PPM 295533     16:51:50.4 -37:08:56  9.6  0.16  33
523682         16:52:19.1 -37:01:09 16.4        32
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 523682, (2023/05/10 04:53UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 11.48  37
26Eps Sco      16:50:08.7 -34:17:41  2.3  2.69  32
PPM 295545     16:51:00.1 -37:30:50  5.7  0.54  32
PPM 295544     16:50:57.5 -36:45:21  8.5  0.23  32
PPM 295533     16:50:16.0 -37:06:37  9.6  0.16  33
523682         16:50:44.8 -36:58:51 16.4        32
Positions are for J2000

Event circumstances last updated at 2023/04/20 03:42:40 UT

Marc W. Buie, Southwest Research Institute

RECON