RECON: TNO occultation with 523719

Event between (523719) 14LM28 and star GA1300:04729879 with event index number of 2292345

Geocentric closest approach at 2022/01/11 17:37:04 UTC

J2000 position of star is 17:42:56.9 +41:11:09
Equinox of date position of star is 17:43:38.7 +41:10:37
Stellar brightness G=17.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 111 degrees from the moon. Moon is 69% illuminated.
TNO apparent brightness V=22.7

TNO is 17.9 AU from the Sun and 18.2 AU from the Earth.
The TNO is moving 36.8 km/sec on the sky relative to the star, or, 10.0 arcsec/hr.
The 1-sigma error in the time of the event is 48 seconds.
The 1-sigma cross-track error in the shadow position is 2401 km.

The TNO has an absolute magnitude Hv=9.9
Diameter=63.1 km assuming a 5% albedo -- 1.7 sec chord
Diameter=25.8 km assuming a 30% albedo -- 0.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 523719, (2022/01/11 17:37UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:41.1 +38:48:19  0.0 10.61 104
Etamin         17:57:07.1 +51:29:14  2.2 10.57 102
PPM 056289     17:33:49.2 +41:13:44  5.7  1.85 112
PPM 056413     17:42:37.5 +41:00:55  7.8  0.25 111
523719         17:43:38.9 +41:10:37 17.0       111
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 523719, (2022/01/11 17:37UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 10.61 104
Etamin         17:56:36.3 +51:29:20  2.2 10.57 102
PPM 056289     17:33:07.1 +41:14:35  5.7  1.85 112
PPM 056413     17:41:55.2 +41:01:29  7.8  0.25 111
523719         17:42:56.9 +41:11:09 17.0       111
Positions are for J2000

Event circumstances last updated at 2021/12/06 01:45:33 UT

Marc W. Buie, Southwest Research Institute

RECON