RECON: TNO occultation with 523718

Event between (523718) 14KZ101 and star GA0820:16811865 with event index number of 2754965

Geocentric closest approach at 2029/05/18 12:52:01 UTC

J2000 position of star is 18:54:01.0 -06:27:18
Equinox of date position of star is 18:55:19.9 -06:25:22
Stellar brightness G=13.9, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 162 degrees from the moon. Moon is 23% illuminated.
Apparent brightness V=22.3

Object is 37.0 AU from the Sun and 36.3 AU from the Earth.
Apparent velocity is 14.9 km/sec on the sky relative to the star, or, 2.0 arcsec/hr.
The 1-sigma error in the time of the event is 897 seconds.
The 1-sigma cross-track error in the shadow position is 1769 km.

The object has an absolute magnitude Hv=6.5
Diameter=316.2 km assuming a 5% albedo -- 20.3 sec chord
Diameter=129.1 km assuming a 30% albedo -- 8.3 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 523718, (2029/05/18 12:52UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.8 -26:29:40  0.9 39.78 134
Nunki          18:57:05.1 -26:15:27  2.0 19.84 166
Eta Sct        18:58:38.0 -05:48:21  4.8  0.97 162
PPM 202316     18:57:18.3 -06:36:21  8.3  0.47 162
PPM 202287     18:55:59.0 -06:26:17  9.4  0.10 162
523718         18:55:35.6 -06:24:58 13.9       162
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 523718, (2029/05/18 12:52UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 39.78 134
Nunki          18:55:15.9 -26:17:49  2.0 19.84 166
Eta Sct        18:57:03.8 -05:50:48  4.8  0.97 162
PPM 202316     18:55:43.5 -06:38:45  8.3  0.47 162
PPM 202287     18:54:24.4 -06:28:38  9.4  0.10 162
523718         18:54:01.0 -06:27:18 13.9       162
Positions are for J2000

Event circumstances last updated at 2024/06/26 21:35:27 UT

Marc W. Buie, Southwest Research Institute

RECON