Event between (202421) 05UQ513 and star GA1240:00219752 with event index number of 2177341
Geocentric closest approach at 2022/08/07 01:34:14 UTC
J2000 position of star is 01:10:17.2 +35:16:46
Equinox of date position of star is 01:11:30.7 +35:23:43
Stellar brightness G=14.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 139 degrees from the moon.
Moon is 68% illuminated.
TNO apparent brightness V=20.9
TNO is 47.7 AU from the Sun
and 47.5 AU from the Earth.
The TNO is moving 12.9
km/sec on the sky relative to the star, or,
1.3 arcsec/hr.
The 1-sigma error in the time of the event is 137 seconds.
The 1-sigma cross-track error in the shadow position is
1840 km.
The TNO has an absolute magnitude Hv=4.0
Diameter=959.4 km assuming a 5% albedo -- 74.3 sec chord
Diameter=391.7 km assuming a 30% albedo -- 30.3 sec chord
Dynamical classification is SCATEXTD
Star training set for 202421, (2022/08/07 01:35UT) Object RA Dec mag sep mel Aldebaran 04:37:13.2 +16:33:11 0.8 49.28 172 57Gam1And 02:05:17.8 +42:26:13 2.3 12.58 147 PPM 066072 01:14:32.2 +34:13:04 6.5 1.33 139 PPM 066001 01:10:33.1 +34:55:33 7.8 0.52 138 PPM 066043 01:12:54.2 +35:13:48 9.0 0.32 139 PPM 066005 01:10:47.7 +35:21:46 11.1 0.16 139 202421 01:11:33.2 +35:23:57 14.8 139 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 202421, (2022/08/07 01:35UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 49.28 172 57Gam1And 02:03:54.0 +42:19:46 2.3 12.58 147 PPM 066072 01:13:16.2 +34:05:54 6.5 1.33 139 PPM 066001 01:09:17.3 +34:48:21 7.8 0.52 138 PPM 066043 01:11:38.1 +35:06:38 9.0 0.32 139 PPM 066005 01:09:31.7 +35:14:34 11.1 0.16 139 202421 01:10:17.2 +35:16:46 14.8 139 Positions are for J2000
Event circumstances last updated at 2021/11/08 00:16:14 UT
Marc W. Buie, Southwest Research Institute