Event between (87269) 00OO67 and star GA0900:00358312 with event index number of 1777140
Geocentric closest approach at 2021/01/10 19:34:14 UTC
J2000 position of star is 04:05:47.1 +00:10:11
Equinox of date position of star is 04:06:51.7 +00:13:31
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 152 degrees from the moon.
Moon is 7% illuminated.
TNO apparent brightness V=24.0
TNO is 29.2 AU from the Sun
and 28.6 AU from the Earth.
The TNO is moving 15.1
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 69 seconds.
The 1-sigma cross-track error in the shadow position is
1038 km.
The TNO has an absolute magnitude Hv=9.2
Diameter=87.1 km assuming a 5% albedo -- 5.8 sec chord
Diameter=35.6 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is CENTAURS
Star training set for 87269, (2021/01/10 19:34UT) Object RA Dec mag sep mel Aldebaran 04:37:07.8 +16:33:00 0.8 17.95 169 Menkar 03:03:22.9 +04:10:16 2.5 16.34 143 PPM 175430 04:03:41.5 -00:12:48 5.6 0.91 151 PPM 175445 04:06:20.5 -00:30:48 7.6 0.75 151 PPM 147193 04:06:41.5 +00:14:16 9.5 0.04 152 87269 04:06:51.8 +00:13:31 16.8 152 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 87269, (2021/01/10 19:34UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 17.95 169 Menkar 03:02:16.8 +04:05:21 2.5 16.34 143 PPM 175430 04:02:36.9 -00:16:14 5.6 0.91 151 PPM 175445 04:05:16.1 -00:34:10 7.6 0.75 151 PPM 147193 04:05:36.8 +00:10:55 9.5 0.04 152 87269 04:05:47.1 +00:10:11 16.8 152 Positions are for J2000
Event circumstances last updated at 2020/12/24 00:14:30 UT
Marc W. Buie, Southwest Research Institute