RECON: TNO occultation with 471136

Event between (471136) 10EO65 and star GA0600:47339038 with event index number of 2269549

Geocentric closest approach at 2023/06/14 19:24:51 UTC

J2000 position of star is 19:18:02.0 -28:20:37
Equinox of date position of star is 19:19:29.4 -28:18:00
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 116 degrees from the moon. Moon is 12% illuminated.
Apparent brightness V=21.9

Object is 16.4 AU from the Sun and 15.5 AU from the Earth.
Apparent velocity is 18.8 km/sec on the sky relative to the star, or, 6.0 arcsec/hr.
The 1-sigma error in the time of the event is 412 seconds.
The 1-sigma cross-track error in the shadow position is 2585 km.

The object has an absolute magnitude Hv=9.7
Diameter=75.9 km assuming a 5% albedo -- 3.8 sec chord
Diameter=31.0 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 471136, (2023/06/14 19:25UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:51.0 -26:28:55  0.9 37.29 154
38Zet Sgr      19:04:06.1 -29:50:40  2.7  3.70 120
PPM 269757     19:26:32.5 -29:15:43  5.6  1.82 115
PPM 269605     19:20:20.2 -28:11:10  8.4  0.22 116
PPM 269600     19:19:59.5 -28:18:37  9.8  0.11 116
471136         19:19:30.0 -28:17:59 16.9       116
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 471136, (2023/06/14 19:25UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 37.29 154
38Zet Sgr      19:02:36.7 -29:52:49  2.7  3.70 120
PPM 269757     19:25:04.0 -29:18:35  5.6  1.82 115
PPM 269605     19:18:52.3 -28:13:50  8.4  0.22 116
PPM 269600     19:18:31.5 -28:21:17  9.8  0.11 116
471136         19:18:02.0 -28:20:37 16.9       116
Positions are for J2000

Event circumstances last updated at 2023/04/19 02:38:03 UT

Marc W. Buie, Southwest Research Institute

RECON