Event between 13UN17 and star GA0960:00126808 with event index number of 1059520
Geocentric closest approach at 2021/02/09 13:43:53 UTC
J2000 position of star is 01:27:42.2 +07:28:10
Equinox of date position of star is 01:28:48.3 +07:34:41
Stellar brightness G=13.8,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 90 degrees from the moon.
Moon is 6% illuminated.
TNO apparent brightness V=24.6
TNO is 44.2 AU from the Sun
and 44.7 AU from the Earth.
The TNO is moving 18.2
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 220 seconds.
The 1-sigma cross-track error in the shadow position is
3482 km.
The TNO has an absolute magnitude Hv=8.0
Diameter=154.2 km assuming a 5% albedo -- 8.5 sec chord
Diameter=62.9 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 13UN17, (2021/02/09 13:44UT) Object RA Dec mag sep mel Aldebaran 04:37:08.1 +16:33:00 0.8 46.79 136 6Bet Ari 01:55:48.6 +20:54:37 2.6 14.84 101 PPM 144653 01:30:09.4 +07:24:09 6.4 0.38 90 PPM 144613 01:27:43.2 +07:24:18 9.5 0.32 89 PPM 144614 01:27:47.5 +07:32:48 10.2 0.25 89 13UN17 01:28:48.5 +07:34:42 13.8 90 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 13UN17, (2021/02/09 13:44UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 46.79 136 6Bet Ari 01:54:38.5 +20:48:26 2.6 14.84 101 PPM 144653 01:29:03.1 +07:17:38 6.4 0.38 90 PPM 144613 01:26:37.0 +07:17:45 9.5 0.32 89 PPM 144614 01:26:41.2 +07:26:15 10.2 0.25 89 13UN17 01:27:42.2 +07:28:10 13.8 90 Positions are for J2000
Event circumstances last updated at 2021/01/18 21:25:44 UT
Marc W. Buie, Southwest Research Institute