Event between 13JD65 and star GA0780:05689513 with event index number of 1990153
Geocentric closest approach at 2022/03/07 17:00:19 UTC
J2000 position of star is 16:58:14.7 -11:53:18
Equinox of date position of star is 16:59:28.0 -11:55:14
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 151 degrees from the moon.
Moon is 25% illuminated.
TNO apparent brightness V=23.9
TNO is 35.7 AU from the Sun
and 35.7 AU from the Earth.
The TNO is moving 7.7
km/sec on the sky relative to the star, or,
1.1 arcsec/hr.
The 1-sigma error in the time of the event is 231 seconds.
The 1-sigma cross-track error in the shadow position is
5390 km.
The TNO has an absolute magnitude Hv=8.2
Diameter=136.8 km assuming a 5% albedo -- 17.8 sec chord
Diameter=55.8 km assuming a 30% albedo -- 7.3 sec chord
Dynamical classification is 3:2E
Star training set for 13JD65, (2022/03/07 17:00UT) Object RA Dec mag sep mel Antares 16:30:46.3 -26:28:46 0.9 16.05 157 35Eta Oph 17:11:39.1 -15:45:03 2.6 4.84 149 PPM 232375 16:58:39.8 -10:59:49 6.3 0.95 151 PPM 232310 16:55:54.4 -11:49:37 7.1 0.88 152 PPM 232391 16:59:05.4 -11:59:41 9.3 0.12 151 13JD65 16:59:28.9 -11:55:16 16.9 151 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 13JD65, (2022/03/07 17:00UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 16.05 157 35Eta Oph 17:10:22.7 -15:43:29 2.6 4.84 149 PPM 232375 16:57:26.0 -10:57:50 6.3 0.95 151 PPM 232310 16:54:40.3 -11:47:33 7.1 0.88 152 PPM 232391 16:57:51.1 -11:57:43 9.3 0.12 151 13JD65 16:58:14.7 -11:53:18 16.9 151 Positions are for J2000
Event circumstances last updated at 2021/12/04 02:04:30 UT
Marc W. Buie, Southwest Research Institute