RECON: TNO occultation with 523756

Event between (523756) 14WD509 and star GA1080:00484586 with event index number of 2614707

Geocentric closest approach at 2024/03/01 19:36:05 UTC

J2000 position of star is 04:04:28.4 +19:52:03
Equinox of date position of star is 04:05:52.3 +19:55:53
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 167 degrees from the moon. Moon is 68% illuminated.
Apparent brightness V=22.4

Object is 42.0 AU from the Sun and 42.1 AU from the Earth.
Apparent velocity is 8.7 km/sec on the sky relative to the star, or, 1.0 arcsec/hr.
The 1-sigma error in the time of the event is 234 seconds.
The 1-sigma cross-track error in the shadow position is 1547 km.

The object has an absolute magnitude Hv=6.0
Diameter=373.3 km assuming a 5% albedo -- 43.9 sec chord
Diameter=152.4 km assuming a 30% albedo -- 17.9 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 523756, (2024/03/01 19:41UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:18.6 +16:33:22  0.8  8.19 159
44Zet Per      03:55:39.4 +31:57:12  2.8 12.24 165
43Ome1Tau      04:10:34.7 +19:40:16  5.5  1.13 166
PPM 119606     04:07:01.4 +20:01:08  8.4  0.28 167
PPM 119587     04:05:31.5 +20:02:16  8.6  0.14 167
523756         04:05:53.0 +19:55:55 16.3       167
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 523756, (2024/03/01 19:41UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  8.19 159
44Zet Per      03:54:07.9 +31:53:01  2.8 12.24 165
43Ome1Tau      04:09:10.1 +19:36:32  5.5  1.13 166
PPM 119606     04:05:36.8 +19:57:18  8.4  0.28 167
PPM 119587     04:04:06.9 +19:58:22  8.6  0.14 167
523756         04:04:28.4 +19:52:03 16.3       167
Positions are for J2000

Event circumstances last updated at 2023/12/15 05:25:07 UT

Marc W. Buie, Southwest Research Institute

RECON