Event between 01XX254 and star GA1080:03174048 with event index number of 1996193
Geocentric closest approach at 2021/12/27 17:34:00 UTC
J2000 position of star is 09:02:40.2 +18:12:09
Equinox of date position of star is 09:03:54.3 +18:06:54
Stellar brightness G=14.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 61 degrees from the moon.
Moon is 43% illuminated.
TNO apparent brightness V=23.7
TNO is 43.1 AU from the Sun
and 42.3 AU from the Earth.
The TNO is moving 19.7
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 153 seconds.
The 1-sigma cross-track error in the shadow position is
2286 km.
The TNO has an absolute magnitude Hv=7.3
Diameter=208.0 km assuming a 5% albedo -- 10.6 sec chord
Diameter=84.9 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is CLASSICAL
Star training set for 01XX254, (2021/12/27 17:34UT) Object RA Dec mag sep mel Regulus 10:09:32.5 +11:51:32 1.3 17.03 44 63Omi2Cnc 08:58:48.7 +15:29:44 5.8 2.89 62 PPM 126035 09:03:51.4 +17:38:58 8.4 0.47 61 PPM 126039 09:04:11.2 +17:51:29 9.4 0.27 61 01XX254 09:03:54.5 +18:06:53 14.8 61 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 01XX254, (2021/12/27 17:34UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 17.03 44 63Omi2Cnc 08:57:35.3 +15:34:53 5.8 2.89 62 PPM 126035 09:02:37.3 +17:44:14 8.4 0.47 61 PPM 126039 09:02:57.0 +17:56:45 9.4 0.27 61 01XX254 09:02:40.2 +18:12:09 14.8 61 Positions are for J2000
Event circumstances last updated at 2021/12/03 01:43:02 UT
Marc W. Buie, Southwest Research Institute