Event between (503883) 01QF331 and star GA1000:00182636 with event index number of 1238256
Geocentric closest approach at 2022/09/21 01:14:17 UTC
J2000 position of star is 02:04:47.2 +10:16:17
Equinox of date position of star is 02:05:57.0 +10:22:30
Stellar brightness G=12.6,
use SENSEUP=16 with the MallinCam and and exposure
time of 250 milli-seconds with the QHY174 camera.
Star is 90 degrees from the moon.
Moon is 22% illuminated.
TNO apparent brightness V=23.0
TNO is 31.8 AU from the Sun
and 31.0 AU from the Earth.
The TNO is moving 18.7
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 202 seconds.
The 1-sigma cross-track error in the shadow position is
2831 km.
The TNO has an absolute magnitude Hv=7.9
Diameter=166.0 km assuming a 5% albedo -- 8.6 sec chord
Diameter=67.8 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is 5:3EE
Star training set for 503883, (2022/09/21 01:15UT) Object RA Dec mag sep mel Aldebaran 04:37:13.6 +16:33:12 0.8 37.22 53 6Bet Ari 01:55:54.0 +20:55:05 2.6 10.81 88 PPM 117850 02:00:39.1 +12:24:15 6.1 2.41 90 PPM 117929 02:06:13.3 +10:13:26 8.0 0.16 90 503883 02:06:00.0 +10:22:46 12.6 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 503883, (2022/09/21 01:15UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 37.22 53 6Bet Ari 01:54:38.5 +20:48:26 2.6 10.81 88 PPM 117850 01:59:25.9 +12:17:40 6.1 2.41 90 PPM 117929 02:05:00.6 +10:06:57 8.0 0.16 90 503883 02:04:47.2 +10:16:17 12.6 90 Positions are for J2000
Event circumstances last updated at 2021/10/14 01:46:29 UT
Marc W. Buie, Southwest Research Institute