Event between (534161) 14RQ63 and star GA1060:00957596 with event index number of 2175194
Geocentric closest approach at 2025/04/07 19:58:05 UTC
J2000 position of star is 05:25:33.9 +17:47:50
Equinox of date position of star is 05:26:50.5 +17:48:54
Stellar brightness G=14.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 60 degrees from the moon.
Moon is 77% illuminated.
TNO apparent brightness V=22.5
TNO is 31.8 AU from the Sun
and 32.2 AU from the Earth.
The TNO is moving 18.7
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 231 seconds.
The 1-sigma cross-track error in the shadow position is
1964 km.
The TNO has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 11.2 sec chord
Diameter=85.3 km assuming a 30% albedo -- 4.6 sec chord
Dynamical classification is 3:2E
Star training set for 534161, (2025/04/07 20:04UT) Object RA Dec mag sep mel Aldebaran 04:37:22.4 +16:33:29 0.8 11.93 72 Alnath 05:27:53.5 +28:37:35 1.6 10.81 58 115 Tau 05:28:38.6 +17:58:54 5.4 0.42 59 PPM 120929 05:26:18.5 +17:13:05 7.7 0.62 60 PPM 120953 05:28:01.3 +17:46:40 9.4 0.24 59 534161 05:27:02.3 +17:49:04 14.8 59 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 534161, (2025/04/07 20:04UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 11.93 72 Alnath 05:26:17.6 +28:36:23 1.6 10.81 58 115 Tau 05:27:10.1 +17:57:43 5.4 0.42 59 PPM 120929 05:24:50.5 +17:11:49 7.7 0.62 60 PPM 120953 05:26:32.9 +17:45:28 9.4 0.24 59 534161 05:25:33.9 +17:47:50 14.8 60 Positions are for J2000
Event circumstances last updated at 2021/11/16 01:10:16 UT
Marc W. Buie, Southwest Research Institute