Event between 99CK158 and star GA1060:03376417 with event index number of 2585622
Geocentric closest approach at 2022/03/11 16:16:18 UTC
J2000 position of star is 11:02:51.8 +16:39:00
Equinox of date position of star is 11:04:01.4 +16:31:54
Stellar brightness G=14.1,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 66 degrees from the moon.
Moon is 62% illuminated.
TNO apparent brightness V=24.2
TNO is 40.1 AU from the Sun
and 39.2 AU from the Earth.
The TNO is moving 25.0
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 312 seconds.
The 1-sigma cross-track error in the shadow position is
4094 km.
The TNO has an absolute magnitude Hv=8.2
Diameter=138.7 km assuming a 5% albedo -- 5.5 sec chord
Diameter=56.6 km assuming a 30% albedo -- 2.3 sec chord
Dynamical classification is SCATEXTD
Star training set for 99CK158, (2022/03/11 16:16UT) Object RA Dec mag sep mel Regulus 10:09:33.1 +11:51:28 1.3 14.00 55 68Del Leo 11:15:17.1 +20:24:06 2.6 4.70 67 70The Leo 11:15:24.1 +15:18:29 3.3 2.99 69 PPM 127939 11:05:15.3 +16:08:12 8.5 0.49 66 PPM 127927 11:03:35.3 +16:45:36 8.7 0.25 66 99CK158 11:04:02.2 +16:31:49 14.1 66 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 99CK158, (2022/03/11 16:16UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 14.00 55 68Del Leo 11:14:06.7 +20:31:22 2.6 4.70 67 70The Leo 11:14:14.3 +15:25:45 3.3 2.99 69 PPM 127939 11:04:05.0 +16:15:24 8.5 0.49 66 PPM 127927 11:02:24.8 +16:52:47 8.7 0.25 66 99CK158 11:02:51.8 +16:39:00 14.1 66 Positions are for J2000
Event circumstances last updated at 2021/12/07 01:46:05 UT
Marc W. Buie, Southwest Research Institute