RECON: TNO occultation with 16GR206

Event between 16GR206 and star GA0880:04268164 with event index number of 2165999

Geocentric closest approach at 2022/12/26 00:36:40 UTC

J2000 position of star is 14:14:38.1 -00:06:57
Equinox of date position of star is 14:15:48.1 -00:13:16
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 100 degrees from the moon. Moon is 10% illuminated.
TNO apparent brightness V=22.3

TNO is 19.0 AU from the Sun and 19.4 AU from the Earth.
The TNO is moving 21.5 km/sec on the sky relative to the star, or, 5.5 arcsec/hr.
The 1-sigma error in the time of the event is 66 seconds.
The 1-sigma cross-track error in the shadow position is 947 km.

The TNO has an absolute magnitude Hv=9.2
Diameter=88.3 km assuming a 5% albedo -- 4.1 sec chord
Diameter=36.1 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 16GR206, (2022/12/26 00:37UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:24.4 -11:16:50  1.0 16.52 107
PPM 179251     14:14:52.0 -00:57:11  6.5  0.77 100
PPM 160472     14:16:00.7 +00:08:51  9.8  0.37 100
PPM 179254     14:15:12.4 -00:20:21 10.6  0.19 100
16GR206        14:15:48.8 -00:13:20 15.3       100
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 16GR206, (2022/12/26 00:37UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 16.52 107
PPM 179251     14:13:41.1 -00:50:47  6.5  0.77 100
PPM 160472     14:14:50.1 +00:15:14  9.8  0.37 100
PPM 179254     14:14:01.6 -00:13:58 10.6  0.19 100
16GR206        14:14:38.1 -00:06:57 15.3       100
Positions are for J2000

Event circumstances last updated at 2022/09/28 04:21:52 UT

Marc W. Buie, Southwest Research Institute

RECON