Event between (174567) Varda and star GA0860:06565815 with event index number of 2166981
Geocentric closest approach at 2025/02/18 00:57:33 UTC
J2000 position of star is 17:56:42.9 -02:15:14
Equinox of date position of star is 17:57:58.5 -02:15:20
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 62 degrees from the moon.
Moon is 75% illuminated.
Apparent brightness V=20.3
Object is 45.8 AU from the Sun
and 46.3 AU from the Earth.
Apparent velocity is 21.8
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 185 seconds.
The 1-sigma cross-track error in the shadow position is
2016 km.
The object has an absolute magnitude Hv=3.5
Diameter=1259.0 km assuming a 5% albedo -- 55.8 sec chord
Diameter=514.0 km assuming a 30% albedo -- 22.8 sec chord
Dynamical classification is SCATEXTD
Star training set for 174567, (2025/02/18 00:57UT) Object RA Dec mag sep mel Antares 16:30:57.2 -26:29:08 0.9 31.99 39 60Bet Oph 17:44:42.9 +04:33:31 2.8 7.58 61 PPM 180184 17:53:17.5 -01:14:28 6.3 1.56 61 PPM 180195 17:55:21.9 -01:37:23 6.7 0.92 62 PPM 180203 17:57:49.4 -02:14:22 9.7 0.05 62 174567 17:58:01.5 -02:15:20 16.3 63 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 174567, (2025/02/18 00:57UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 31.99 39 60Bet Oph 17:43:28.3 +04:34:06 2.8 7.58 61 PPM 180184 17:51:59.5 -01:14:12 6.3 1.56 61 PPM 180195 17:54:03.7 -01:37:11 6.7 0.92 62 PPM 180203 17:56:30.8 -02:14:16 9.7 0.05 62 174567 17:56:42.9 -02:15:14 16.3 62 Positions are for J2000
Event circumstances last updated at 2024/02/28 22:12:37 UT
Marc W. Buie, Southwest Research Institute