Event between (612203) 00WT169 and star GA1120:02526567 with event index number of 2809233
Geocentric closest approach at 2028/01/20 20:29:27 UTC
J2000 position of star is 06:43:58.2 +22:44:44
Equinox of date position of star is 06:45:19.4 +22:43:17
Stellar brightness G=11.5,
use SENSEUP=8 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 135 degrees from the moon.
Moon is 29% illuminated.
TNO apparent brightness V=22.7
TNO is 45.2 AU from the Sun
and 44.2 AU from the Earth.
The TNO is moving 24.1
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 763 seconds.
The 1-sigma cross-track error in the shadow position is
2066 km.
The TNO has an absolute magnitude Hv=6.1
Diameter=356.5 km assuming a 5% albedo -- 14.8 sec chord
Diameter=145.5 km assuming a 30% albedo -- 6.0 sec chord
Dynamical classification is CLASSICAL
Star training set for 612203, (2028/01/20 20:29UT) Object RA Dec mag sep mel Pollux 07:47:02.0 +27:57:22 1.1 14.81 122 Alhena 06:39:19.9 +16:22:22 1.9 6.52 135 PPM 096308 06:40:46.5 +22:00:13 6.0 1.34 136 PPM 096508 06:47:52.4 +23:20:23 7.4 0.81 134 PPM 096467 06:46:06.2 +22:32:54 10.0 0.20 135 PPM 096450 06:45:33.5 +22:42:33 10.8 0.03 135 612203 06:45:39.9 +22:42:55 11.5 134 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 612203, (2028/01/20 20:29UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 14.81 122 Alhena 06:37:42.8 +16:23:56 1.9 6.52 135 PPM 096308 06:39:05.3 +22:01:51 6.0 1.34 136 PPM 096508 06:46:10.3 +23:22:18 7.4 0.81 134 PPM 096467 06:44:24.6 +22:34:44 10.0 0.20 135 PPM 096450 06:43:51.8 +22:44:22 10.8 0.03 135 612203 06:43:58.2 +22:44:44 11.5 135 Positions are for J2000
Event circumstances last updated at 2022/05/21 23:03:30 UT
Marc W. Buie, Southwest Research Institute