RECON: TNO occultation with 523759

Event between (523759) 14WK509 and star GA1180:00789927 with event index number of 2614495

Geocentric closest approach at 2024/01/02 12:44:47 UTC

J2000 position of star is 04:21:39.0 +28:39:43
Equinox of date position of star is 04:23:08.6 +28:43:02
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 105 degrees from the moon. Moon is 65% illuminated.
Apparent brightness V=21.6

Object is 51.7 AU from the Sun and 50.8 AU from the Earth.
Apparent velocity is 21.5 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 107 seconds.
The 1-sigma cross-track error in the shadow position is 1934 km.

The object has an absolute magnitude Hv=4.4
Diameter=783.5 km assuming a 5% albedo -- 37.2 sec chord
Diameter=319.8 km assuming a 30% albedo -- 15.2 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 523759, (2024/01/02 12:45UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:18.0 +16:33:20  0.8 12.59 104
44Zet Per      03:55:38.8 +31:57:11  2.8  6.76 110
PPM 093607     04:36:08.4 +29:00:33  5.7  2.86 102
PPM 093434     04:22:07.8 +28:56:51  8.0  0.32 105
PPM 093444     04:23:06.4 +28:28:17 11.3  0.25 105
523759         04:23:08.8 +28:43:02 16.3       105
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 523759, (2024/01/02 12:45UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 12.59 104
44Zet Per      03:54:07.9 +31:53:01  2.8  6.76 110
PPM 093607     04:34:38.0 +28:57:40  5.7  2.86 102
PPM 093434     04:20:37.8 +28:53:31  8.0  0.32 105
PPM 093444     04:21:36.8 +28:24:58 11.3  0.25 105
523759         04:21:39.0 +28:39:43 16.3       105
Positions are for J2000

Event circumstances last updated at 2023/12/15 05:23:57 UT

Marc W. Buie, Southwest Research Institute

RECON