Event between 15KK178 and star GA0720:07130784 with event index number of 1992744
Geocentric closest approach at 2022/02/12 02:11:53 UTC
J2000 position of star is 17:03:06.5 -16:50:23
Equinox of date position of star is 17:04:22.6 -16:52:10
Stellar brightness G=13.9,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 163 degrees from the moon.
Moon is 81% illuminated.
TNO apparent brightness V=22.4
TNO is 37.2 AU from the Sun
and 37.5 AU from the Earth.
The TNO is moving 17.4
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 199 seconds.
The 1-sigma cross-track error in the shadow position is
1646 km.
The TNO has an absolute magnitude Hv=6.5
Diameter=306.2 km assuming a 5% albedo -- 17.6 sec chord
Diameter=125.0 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 15KK178, (2022/02/12 02:12UT) Object RA Dec mag sep mel Antares 16:30:46.0 -26:28:45 0.9 12.37 158 35Eta Oph 17:11:38.9 -15:45:03 2.6 2.07 163 PPM 232651 17:09:32.0 -17:38:11 6.0 1.45 164 PPM 232474 17:02:28.3 -17:22:34 8.3 0.68 163 PPM 232530 17:04:38.1 -16:49:59 9.5 0.07 163 15KK178 17:04:23.2 -16:52:11 13.9 163 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 15KK178, (2022/02/12 02:12UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 12.37 158 35Eta Oph 17:10:22.7 -15:43:29 2.6 2.07 163 PPM 232651 17:08:14.9 -17:36:33 6.0 1.45 164 PPM 232474 17:01:11.4 -17:20:43 8.3 0.68 163 PPM 232530 17:03:21.4 -16:48:11 9.5 0.07 163 15KK178 17:03:06.5 -16:50:23 13.9 163 Positions are for J2000
Event circumstances last updated at 2021/12/05 02:03:51 UT
Marc W. Buie, Southwest Research Institute