RECON: TNO occultation with 523597

Event between (523597) 02QX47 and star GA1120:00382623 with event index number of 2719101

Geocentric closest approach at 2029/03/05 12:19:26 UTC

J2000 position of star is 03:06:37.2 +22:39:54
Equinox of date position of star is 03:08:02.5 +22:45:30
Stellar brightness G=14.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 178 degrees from the moon. Moon is 70% illuminated.
Apparent brightness V=23.7

Object is 29.2 AU from the Sun and 29.6 AU from the Earth.
Apparent velocity is 17.0 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 444 seconds.
The 1-sigma cross-track error in the shadow position is 1922 km.

The object has an absolute magnitude Hv=8.8
Diameter=104.7 km assuming a 5% albedo -- 6.1 sec chord
Diameter=42.8 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 523597, (2029/03/05 12:19UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:35.9 +16:33:57  0.8 21.89 160
Hamal          02:08:49.4 +23:35:57  2.0 13.69 165
48Eps Ari      03:00:53.2 +21:27:19  5.6  2.17 177
PPM 092178     03:05:10.5 +23:10:27  7.8  0.82 177
PPM 092222     03:09:20.4 +22:40:57  9.7  0.25 178
523597         03:08:18.9 +22:46:34 14.4       179
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 523597, (2029/03/05 12:19UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 21.89 160
Hamal          02:07:10.7 +23:27:41  2.0 13.69 165
48Eps Ari      02:59:12.6 +21:20:25  5.6  2.17 177
PPM 092178     03:03:28.8 +23:03:41  7.8  0.82 177
PPM 092222     03:07:38.7 +22:34:20  9.7  0.25 178
523597         03:06:37.2 +22:39:54 14.4       178
Positions are for J2000

Event circumstances last updated at 2024/06/26 21:32:51 UT

Marc W. Buie, Southwest Research Institute

RECON