Event between 12UL177 and star GA1200:00466434 with event index number of 2306921
Geocentric closest approach at 2022/12/04 00:05:25 UTC
J2000 position of star is 02:50:00.8 +30:31:34
Equinox of date position of star is 02:51:19.5 +30:36:56
Stellar brightness G=10.5,
use SENSEUP=4 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 30 degrees from the moon.
Moon is 84% illuminated.
TNO apparent brightness V=23.0
TNO is 36.0 AU from the Sun
and 35.1 AU from the Earth.
The TNO is moving 23.1
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 124 seconds.
The 1-sigma cross-track error in the shadow position is
1778 km.
The TNO has an absolute magnitude Hv=7.4
Diameter=193.2 km assuming a 5% albedo -- 8.6 sec chord
Diameter=78.9 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is SCATEXTD
Star training set for 12UL177, (2022/12/04 00:05UT) Object RA Dec mag sep mel Aldebaran 04:37:14.3 +16:33:13 0.8 27.92 46 Algol 03:09:40.2 +41:02:32 2.1 11.06 40 39 Ari 02:49:16.8 +29:20:27 5.6 1.36 28 PPM 067804 02:51:23.2 +30:37:11 7.2 0.00 29 12UL177 02:51:23.5 +30:37:12 10.5 30 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 12UL177, (2022/12/04 00:05UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 27.92 46 Algol 03:08:10.1 +40:57:20 2.1 11.06 40 39 Ari 02:47:54.8 +29:14:46 5.6 1.36 28 PPM 067804 02:50:00.4 +30:31:33 7.2 0.00 29 12UL177 02:50:00.8 +30:31:34 10.5 29 Positions are for J2000
Event circumstances last updated at 2021/10/26 23:59:26 UT
Marc W. Buie, Southwest Research Institute