Event between 17OG69 and star GA0820:00309855 with event index number of 2167804
Geocentric closest approach at 2022/12/21 11:48:25 UTC
J2000 position of star is 03:53:05.2 -06:03:29
Equinox of date position of star is 03:54:12.8 -05:59:29
Stellar brightness G=15.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 151 degrees from the moon.
Moon is 5% illuminated.
TNO apparent brightness V=21.7
TNO is 38.0 AU from the Sun
and 37.3 AU from the Earth.
The TNO is moving 21.3
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 104 seconds.
The 1-sigma cross-track error in the shadow position is
1439 km.
The TNO has an absolute magnitude Hv=5.8
Diameter=415.0 km assuming a 5% albedo -- 19.7 sec chord
Diameter=169.4 km assuming a 30% albedo -- 8.0 sec chord
Dynamical classification is SCATEXTD
Star training set for 17OG69, (2022/12/21 11:45UT) Object RA Dec mag sep mel Rigel 05:15:38.6 -08:10:36 0.1 20.32 144 Menkar 03:03:29.0 +04:10:43 2.5 16.24 157 30 Eri 03:53:49.9 -05:17:39 5.6 0.70 152 PPM 186309 03:55:15.5 -06:27:39 8.4 0.54 151 PPM 186293 03:54:18.4 -05:55:14 9.6 0.07 152 17OG69 03:54:13.1 -05:59:28 15.7 152 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 17OG69, (2022/12/21 11:45UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 20.32 144 Menkar 03:02:16.8 +04:05:21 2.5 16.24 157 30 Eri 03:52:41.7 -05:21:41 5.6 0.70 152 PPM 186309 03:54:07.8 -06:31:39 8.4 0.54 151 PPM 186293 03:53:10.5 -05:59:15 9.6 0.07 152 17OG69 03:53:05.2 -06:03:29 15.7 151 Positions are for J2000
Event circumstances last updated at 2022/11/13 03:28:39 UT
Marc W. Buie, Southwest Research Institute