RECON: TNO occultation with 534627

Event between (534627) 14UV224 and star GA1100:00406501 with event index number of 2388367

Geocentric closest approach at 2027/03/02 13:58:23 UTC

J2000 position of star is 03:34:26.9 +20:06:33
Equinox of date position of star is 03:35:51.8 +20:11:23
Stellar brightness G=14.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 139 degrees from the moon. Moon is 28% illuminated.
Apparent brightness V=22.4

Object is 39.8 AU from the Sun and 40.1 AU from the Earth.
Apparent velocity is 12.8 km/sec on the sky relative to the star, or, 1.6 arcsec/hr.
The 1-sigma error in the time of the event is 592 seconds.
The 1-sigma cross-track error in the shadow position is 3563 km.

The object has an absolute magnitude Hv=6.2
Diameter=345.2 km assuming a 5% albedo -- 26.9 sec chord
Diameter=140.9 km assuming a 30% albedo -- 11.0 sec chord
Dynamical classification is 11:3EEEEEEEE
 
 
 
 
 
 
 
 

Star training set for 534627, (2027/03/02 13:58UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:28.9 +16:33:43  0.8 15.02 151
44Zet Per      03:55:50.8 +31:57:43  2.8 12.57 145
PPM 092695     03:40:35.0 +21:00:07  6.4  1.34 140
PPM 119187     03:36:01.7 +19:53:07  8.2  0.31 138
PPM 092637     03:36:44.1 +20:18:36  9.9  0.20 139
534627         03:36:01.2 +20:11:55 14.9       139
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 534627, (2027/03/02 13:58UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 15.02 151
44Zet Per      03:54:07.9 +31:53:01  2.8 12.57 145
PPM 092695     03:39:00.1 +20:54:55  6.4  1.34 140
PPM 119187     03:34:27.6 +19:47:45  8.2  0.31 138
PPM 092637     03:35:09.7 +20:13:16  9.9  0.20 139
534627         03:34:26.9 +20:06:33 14.9       139
Positions are for J2000

Event circumstances last updated at 2024/06/21 21:27:07 UT

Marc W. Buie, Southwest Research Institute

RECON