Event between 07TV431 and star GA1120:00624246 with event index number of 2031046
Geocentric closest approach at 2022/12/21 16:06:36 UTC
J2000 position of star is 04:19:36.3 +22:10:46
Equinox of date position of star is 04:20:57.6 +22:13:58
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 178 degrees from the moon.
Moon is 5% illuminated.
TNO apparent brightness V=24.1
TNO is 30.6 AU from the Sun
and 29.7 AU from the Earth.
The TNO is moving 22.0
km/sec on the sky relative to the star, or,
3.7 arcsec/hr.
The 1-sigma error in the time of the event is 330 seconds.
The 1-sigma cross-track error in the shadow position is
1844 km.
The TNO has an absolute magnitude Hv=9.2
Diameter=85.5 km assuming a 5% albedo -- 3.9 sec chord
Diameter=34.9 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is 3:2E
Star training set for 07TV431, (2022/12/21 16:07UT) Object RA Dec mag sep mel Aldebaran 04:37:14.5 +16:33:13 0.8 6.85 171 44Zet Per 03:55:34.9 +31:57:00 2.8 11.23 170 56 Tau 04:20:58.6 +21:49:37 5.3 0.41 178 PPM 093402 04:19:37.0 +22:51:40 7.9 0.70 179 PPM 093437 04:22:09.2 +22:17:04 9.8 0.28 178 PPM 093413 04:20:21.9 +22:11:42 11.4 0.15 178 07TV431 04:20:58.4 +22:14:00 15.4 178 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 07TV431, (2022/12/21 16:07UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 6.85 171 44Zet Per 03:54:07.9 +31:53:01 2.8 11.23 170 56 Tau 04:19:36.8 +21:46:23 5.3 0.41 178 PPM 093402 04:18:14.6 +22:48:24 7.9 0.70 179 PPM 093437 04:20:47.1 +22:13:52 9.8 0.28 178 PPM 093413 04:18:59.9 +22:08:27 11.4 0.15 178 07TV431 04:19:36.3 +22:10:46 15.4 178 Positions are for J2000
Event circumstances last updated at 2022/10/01 04:17:55 UT
Marc W. Buie, Southwest Research Institute