Event between (20108) 95QZ9 and star GA0940:00367436 with event index number of 1700242
Geocentric closest approach at 2027/01/07 14:50:42 UTC
J2000 position of star is 04:03:53.3 +04:21:31
Equinox of date position of star is 04:05:03.1 +04:25:04
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 132 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=23.7
TNO is 38.8 AU from the Sun
and 38.1 AU from the Earth.
The TNO is moving 16.8
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 1106 seconds.
The 1-sigma cross-track error in the shadow position is
2680 km.
The TNO has an absolute magnitude Hv=7.7
Diameter=173.8 km assuming a 5% albedo -- 10.3 sec chord
Diameter=70.9 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is 3:2E
Star training set for 20108, (2027/01/07 14:51UT) Object RA Dec mag sep mel Aldebaran 04:37:28.4 +16:33:42 0.8 14.47 144 Menkar 03:03:41.7 +04:11:39 2.5 15.36 118 40 Tau 04:05:10.7 +05:30:30 5.2 1.08 132 PPM 147174 04:05:27.3 +03:54:47 8.1 0.52 132 PPM 147140 04:03:38.5 +04:39:26 9.9 0.47 132 PPM 147175 04:05:32.5 +04:10:02 11.1 0.27 132 20108 04:05:18.8 +04:25:52 16.0 132 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 20108, (2027/01/07 14:51UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 14.47 144 Menkar 03:02:16.8 +04:05:21 2.5 15.36 118 40 Tau 04:03:44.6 +05:26:08 5.2 1.08 132 PPM 147174 04:04:02.0 +03:50:26 8.1 0.52 132 PPM 147140 04:02:12.9 +04:35:01 9.9 0.47 132 PPM 147175 04:04:07.1 +04:05:41 11.1 0.27 132 20108 04:03:53.3 +04:21:31 16.0 132 Positions are for J2000
Event circumstances last updated at 2022/01/20 23:48:30 UT
Marc W. Buie, Southwest Research Institute