RECON: TNO occultation with 482824

Event between (482824) 13XC26 and star GA1240:03322492 with event index number of 2317598

Geocentric closest approach at 2024/05/30 18:55:20 UTC

J2000 position of star is 09:05:56.8 +35:49:15
Equinox of date position of star is 09:07:27.7 +35:43:20
Stellar brightness G=10.4, use SENSEUP=4 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 145 degrees from the moon. Moon is 49% illuminated.
Apparent brightness V=20.3

Object is 36.1 AU from the Sun and 36.6 AU from the Earth.
Apparent velocity is 21.6 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 67 seconds.
The 1-sigma cross-track error in the shadow position is 1386 km.

The object has an absolute magnitude Hv=4.5
Diameter=731.2 km assuming a 5% albedo -- 34.9 sec chord
Diameter=298.5 km assuming a 30% albedo -- 14.2 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 482824, (2024/05/30 18:55UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:48.5 +27:57:55  1.1 18.76 132
PPM 074134     08:59:59.0 +35:42:25  6.5  1.52 143
PPM 074270     09:10:00.2 +36:12:44  7.9  0.71 145
PPM 074248     09:08:15.1 +35:13:50  9.3  0.52 145
PPM 074241     09:07:47.7 +35:19:22 11.1  0.40 145
482824         09:07:28.0 +35:43:19 10.4       145
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 482824, (2024/05/30 18:55UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 18.76 132
PPM 074134     08:58:27.3 +35:48:10  6.5  1.52 143
PPM 074270     09:08:28.9 +36:18:43  7.9  0.71 145
PPM 074248     09:06:44.2 +35:19:48  9.3  0.52 145
PPM 074241     09:06:16.8 +35:25:18 11.1  0.40 145
482824         09:05:56.8 +35:49:15 10.4       145
Positions are for J2000

Event circumstances last updated at 2024/05/05 03:29:06 UT

Marc W. Buie, Southwest Research Institute

RECON