Event between 02WL21 and star GA1140:02523849 with event index number of 1997800
Geocentric closest approach at 2022/01/06 19:24:33 UTC
J2000 position of star is 06:47:35.8 +24:25:18
Equinox of date position of star is 06:48:56.2 +24:23:46
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 120 degrees from the moon.
Moon is 21% illuminated.
TNO apparent brightness V=23.8
TNO is 42.1 AU from the Sun
and 41.2 AU from the Earth.
The TNO is moving 25.5
km/sec on the sky relative to the star, or,
3.1 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
1529 km.
The TNO has an absolute magnitude Hv=7.6
Diameter=181.1 km assuming a 5% albedo -- 7.1 sec chord
Diameter=74.0 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is CLASSICAL
Star training set for 02WL21, (2022/01/06 19:25UT) Object RA Dec mag sep mel Pollux 07:46:39.6 +27:58:16 1.1 13.42 132 Alhena 06:38:59.0 +16:22:43 1.9 8.35 117 37 Gem 06:56:39.8 +25:20:46 6.3 1.99 122 PPM 096615 06:51:59.0 +23:39:58 8.4 1.01 120 PPM 096567 06:49:50.0 +24:20:04 9.0 0.21 120 02WL21 06:48:56.6 +24:23:46 16.9 120 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 02WL21, (2022/01/06 19:25UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 13.42 132 Alhena 06:37:42.8 +16:23:57 1.9 8.35 117 37 Gem 06:55:18.6 +25:22:33 6.3 1.99 122 PPM 096615 06:50:38.7 +23:41:36 8.4 1.01 120 PPM 096567 06:48:29.3 +24:21:38 9.0 0.21 120 02WL21 06:47:35.8 +24:25:18 16.9 120 Positions are for J2000
Event circumstances last updated at 2021/12/03 01:43:52 UT
Marc W. Buie, Southwest Research Institute