RECON: TNO occultation with 119951

Event between (119951) 02KX14 and star GA0660:18154261 with event index number of 2114021

Geocentric closest approach at 2024/09/22 01:06:07 UTC

J2000 position of star is 17:44:01.8 -23:31:11
Equinox of date position of star is 17:45:30.0 -23:31:43
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 148 degrees from the moon. Moon is 79% illuminated.
Apparent brightness V=20.8

Object is 38.8 AU from the Sun and 38.8 AU from the Earth.
Apparent velocity is 6.7 km/sec on the sky relative to the star, or, 0.9 arcsec/hr.
The 1-sigma error in the time of the event is 346 seconds.
The 1-sigma cross-track error in the shadow position is 1440 km.

The object has an absolute magnitude Hv=4.7
Diameter=691.9 km assuming a 5% albedo -- 102.7 sec chord
Diameter=282.4 km assuming a 30% albedo -- 41.9 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 119951, (2024/09/22 01:05UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:55.7 -26:29:05  0.9 17.14 165
35Eta Oph      17:11:47.9 -15:45:14  2.6 11.11 154
PPM 267309     17:49:15.3 -22:29:05  6.1  1.35 147
PPM 267163     17:43:50.4 -23:21:33  7.7  0.42 148
PPM 267209     17:45:48.0 -23:45:55  9.4  0.24 148
119951         17:45:32.1 -23:31:44 16.5       148
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 119951, (2024/09/22 01:05UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 17.14 165
35Eta Oph      17:10:22.7 -15:43:29  2.6 11.11 154
PPM 267309     17:47:45.6 -22:28:40  6.1  1.35 147
PPM 267163     17:42:20.1 -23:20:56  7.7  0.42 148
PPM 267209     17:44:17.5 -23:45:23  9.4  0.24 148
119951         17:44:01.8 -23:31:11 16.5       148
Positions are for J2000

Event circumstances last updated at 2024/02/22 04:20:01 UT

Marc W. Buie, Southwest Research Institute

RECON