Event between (612891) 04TT357 and star GA1060:01388126 with event index number of 2804619
Geocentric closest approach at 2026/02/09 20:08:24 UTC
J2000 position of star is 05:49:44.0 +17:38:17
Equinox of date position of star is 05:51:02.2 +17:38:36
Stellar brightness G=11.2,
use SENSEUP=8 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 145 degrees from the moon.
Moon is 47% illuminated.
TNO apparent brightness V=23.4
TNO is 34.6 AU from the Sun
and 34.0 AU from the Earth.
The TNO is moving 12.7
km/sec on the sky relative to the star, or,
1.9 arcsec/hr.
The 1-sigma error in the time of the event is 613 seconds.
The 1-sigma cross-track error in the shadow position is
2079 km.
The TNO has an absolute magnitude Hv=7.9
Diameter=157.8 km assuming a 5% albedo -- 12.5 sec chord
Diameter=64.4 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is 5:2EEE
Star training set for 612891, (2026/02/09 20:08UT) Object RA Dec mag sep mel Betelgeuse 05:56:35.2 +07:24:35 0.4 10.32 140 Alhena 06:39:13.2 +16:22:29 1.9 11.53 134 126 Tau 05:42:48.3 +16:32:42 4.6 2.30 147 PPM 121438 05:51:01.0 +17:31:28 8.3 0.13 145 612891 05:51:15.4 +17:38:38 11.2 145 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 612891, (2026/02/09 20:08UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 10.32 140 Alhena 06:37:42.8 +16:23:56 1.9 11.53 134 126 Tau 05:41:17.7 +16:32:02 4.6 2.30 147 PPM 121438 05:49:29.7 +17:31:06 8.3 0.13 145 612891 05:49:44.0 +17:38:17 11.2 145 Positions are for J2000
Event circumstances last updated at 2022/05/04 23:24:42 UT
Marc W. Buie, Southwest Research Institute