Event between (612688) 03UT292 and star GA0940:02130194 with event index number of 2817055
Geocentric closest approach at 2025/02/08 17:14:27 UTC
J2000 position of star is 06:49:32.0 +05:33:36
Equinox of date position of star is 06:50:43.5 +05:31:59
Stellar brightness G=12.9,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 24 degrees from the moon.
Moon is 84% illuminated.
TNO apparent brightness V=21.6
TNO is 27.7 AU from the Sun
and 26.9 AU from the Earth.
The TNO is moving 18.5
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 248 seconds.
The 1-sigma cross-track error in the shadow position is
2335 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=231.2 km assuming a 5% albedo -- 12.5 sec chord
Diameter=94.4 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is 3:2E
Star training set for 612688, (2025/02/08 17:14UT) Object RA Dec mag sep mel Betelgeuse 05:56:31.9 +07:24:35 0.4 13.63 22 Alhena 06:39:09.7 +16:22:32 1.9 11.22 13 PPM 151081 06:43:20.1 +06:19:11 6.2 2.03 23 PPM 151373 06:52:20.0 +05:48:39 7.4 0.46 24 PPM 151314 06:50:26.8 +05:33:27 8.7 0.11 24 612688 06:50:52.4 +05:31:47 12.9 24 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 612688, (2025/02/08 17:14UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 13.63 22 Alhena 06:37:42.8 +16:23:56 1.9 11.22 13 PPM 151081 06:41:59.3 +06:20:44 6.2 2.03 23 PPM 151373 06:50:59.5 +05:50:32 7.4 0.46 24 PPM 151314 06:49:06.4 +05:35:15 8.7 0.11 24 612688 06:49:32.0 +05:33:36 12.9 24 Positions are for J2000
Event circumstances last updated at 2022/05/04 00:10:54 UT
Marc W. Buie, Southwest Research Institute