Event between 13RS124 and star GA0860:00169893 with event index number of 2463725
Geocentric closest approach at 2021/12/17 00:42:32 UTC
J2000 position of star is 02:06:08.4 -02:46:06
Equinox of date position of star is 02:07:14.6 -02:39:55
Stellar brightness G=13.1,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 36 degrees from the moon.
Moon is 96% illuminated.
TNO apparent brightness V=23.5
TNO is 34.9 AU from the Sun
and 34.3 AU from the Earth.
The TNO is moving 12.4
km/sec on the sky relative to the star, or,
1.8 arcsec/hr.
The 1-sigma error in the time of the event is 252 seconds.
The 1-sigma cross-track error in the shadow position is
1538 km.
The TNO has an absolute magnitude Hv=8.0
Diameter=127.6 km assuming a 5% albedo -- 12.1 sec chord
Diameter=52.1 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is SCATNEAR
Star training set for 13RS124, (2021/12/17 00:41UT) Object RA Dec mag sep mel Aldebaran 04:37:11.0 +16:33:06 0.8 41.70 10 68Omi Cet 02:20:27.4 -02:52:45 2.0 3.30 34 PPM 184185 02:04:47.0 -03:59:57 5.4 1.47 38 PPM 184237 02:07:35.0 -02:07:55 8.5 0.54 36 PPM 184229 02:07:11.8 -02:45:44 9.6 0.10 36 13RS124 02:07:15.2 -02:39:51 13.1 36 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 13RS124, (2021/12/17 00:41UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 41.70 10 68Omi Cet 02:19:20.8 -02:58:45 2.0 3.30 34 PPM 184185 02:03:40.5 -04:06:14 5.4 1.47 38 PPM 184237 02:06:28.1 -02:14:09 8.5 0.54 36 PPM 184229 02:06:05.1 -02:51:59 9.6 0.10 36 13RS124 02:06:08.4 -02:46:06 13.1 36 Positions are for J2000
Event circumstances last updated at 2021/10/04 01:48:35 UT
Marc W. Buie, Southwest Research Institute