Event between (548504) 10NF146 and star GA0860:04133654 with event index number of 2399781
Geocentric closest approach at 2025/02/26 23:13:19 UTC
J2000 position of star is 12:52:08.5 -03:05:46
Equinox of date position of star is 12:53:17.3 -03:13:01
Stellar brightness G=15.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 131 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=22.8
TNO is 43.2 AU from the Sun
and 42.4 AU from the Earth.
The TNO is moving 19.9
km/sec on the sky relative to the star, or,
2.3 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
3910 km.
The TNO has an absolute magnitude Hv=6.4
Diameter=316.2 km assuming a 5% albedo -- 15.9 sec chord
Diameter=129.1 km assuming a 30% albedo -- 6.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 548504, (2025/02/26 23:15UT) Object RA Dec mag sep mel Spica 13:26:31.3 -11:17:31 1.0 11.50 120 38 Vir 12:54:28.6 -03:41:22 6.1 0.53 131 PPM 195909 12:53:22.3 -03:31:56 9.8 0.30 131 PPM 178896 12:52:35.9 -03:02:13 10.9 0.29 131 548504 12:53:26.3 -03:13:57 15.0 131 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 548504, (2025/02/26 23:15UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 11.50 120 38 Vir 12:53:10.8 -03:33:11 6.1 0.53 131 PPM 195909 12:52:04.5 -03:23:45 9.8 0.30 131 PPM 178896 12:51:18.2 -02:54:01 10.9 0.29 131 548504 12:52:08.5 -03:05:46 15.0 131 Positions are for J2000
Event circumstances last updated at 2022/04/05 23:12:36 UT
Marc W. Buie, Southwest Research Institute