Event between 00YH2 and star GA0980:03080024 with event index number of 1995092
Geocentric closest approach at 2021/11/21 20:12:52 UTC
J2000 position of star is 07:40:06.5 +08:33:35
Equinox of date position of star is 07:41:17.3 +08:30:30
Stellar brightness G=14.3,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 32 degrees from the moon.
Moon is 95% illuminated.
TNO apparent brightness V=22.4
TNO is 27.9 AU from the Sun
and 27.3 AU from the Earth.
The TNO is moving 12.3
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 382 seconds.
The 1-sigma cross-track error in the shadow position is
2706 km.
The TNO has an absolute magnitude Hv=7.8
Diameter=166.0 km assuming a 5% albedo -- 13.5 sec chord
Diameter=67.8 km assuming a 30% albedo -- 5.5 sec chord
Dynamical classification is 3:2E
Star training set for 00YH2, (2021/11/21 20:13UT) Object RA Dec mag sep mel Pollux 07:46:39.2 +27:58:18 1.1 19.50 27 Alhena 06:38:58.6 +16:22:43 1.9 17.12 16 PPM 124170 07:35:17.2 +10:31:08 6.1 2.50 30 PPM 153053 07:40:07.0 +08:24:05 8.5 0.31 32 PPM 153081 07:41:04.7 +08:33:58 9.0 0.08 32 00YH2 07:41:17.8 +08:30:29 14.3 33 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 00YH2, (2021/11/21 20:13UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 19.50 27 Alhena 06:37:42.8 +16:23:57 1.9 17.12 16 PPM 124170 07:34:04.9 +10:34:04 6.1 2.50 30 PPM 153053 07:38:55.8 +08:27:10 8.5 0.31 32 PPM 153081 07:39:53.4 +08:37:04 9.0 0.08 32 00YH2 07:40:06.5 +08:33:35 14.3 32 Positions are for J2000
Event circumstances last updated at 2021/10/02 02:30:02 UT
Marc W. Buie, Southwest Research Institute