RECON: TNO occultation with 14RL74

Event between 14RL74 and star GA0760:00265996 with event index number of 2734369

Geocentric closest approach at 2024/02/23 14:07:29 UTC

J2000 position of star is 03:10:45.2 -12:18:20
Equinox of date position of star is 03:11:47.9 -12:13:25
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 103 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=22.9

TNO is 49.1 AU from the Sun and 49.5 AU from the Earth.
The TNO is moving 20.0 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 126 seconds.
The 1-sigma cross-track error in the shadow position is 3394 km.

The TNO has an absolute magnitude Hv=5.8
Diameter=415.0 km assuming a 5% albedo -- 20.8 sec chord
Diameter=169.4 km assuming a 30% albedo -- 8.5 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 
 
 

Star training set for 14RL74, (2024/02/23 14:07UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:15:42.0 -08:10:32  0.1 30.71  73
68Omi Cet      02:20:34.1 -02:52:09  2.0 15.77 113
PPM 185306     03:03:06.4 -09:52:03  6.0  3.19 105
PPM 212474     03:09:10.7 -11:56:58  8.4  0.72 104
PPM 212518     03:11:22.3 -11:54:10 10.0  0.34 103
14RL74         03:11:54.2 -12:12:55 16.9       103
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 14RL74, (2024/02/23 14:07UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:14:32.3 -08:12:06  0.1 30.71  73
68Omi Cet      02:19:20.8 -02:58:45  2.0 15.77 113
PPM 185306     03:01:56.2 -09:57:41  6.0  3.19 105
PPM 212474     03:08:01.5 -12:02:28  8.4  0.72 104
PPM 212518     03:10:13.0 -11:59:36 10.0  0.34 103
14RL74         03:10:45.2 -12:18:20 16.9       103
Positions are for J2000

Event circumstances last updated at 2021/12/02 01:50:00 UT

Marc W. Buie, Southwest Research Institute

RECON