Event between 13RQ109 and star GA0960:00233109 with event index number of 2674521
Geocentric closest approach at 2022/08/01 15:34:29 UTC
J2000 position of star is 02:45:01.3 +07:58:01
Equinox of date position of star is 02:46:10.9 +08:03:28
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 132 degrees from the moon.
Moon is 14% illuminated.
TNO apparent brightness V=22.9
TNO is 30.9 AU from the Sun
and 31.0 AU from the Earth.
The TNO is moving 7.0
km/sec on the sky relative to the star, or,
1.1 arcsec/hr.
The 1-sigma error in the time of the event is 591 seconds.
The 1-sigma cross-track error in the shadow position is
3373 km.
The TNO has an absolute magnitude Hv=7.8
Diameter=140.0 km assuming a 5% albedo -- 23.3 sec chord
Diameter=57.1 km assuming a 30% albedo -- 9.5 sec chord
Dynamical classification is 4:3E
Star training set for 13RQ109, (2022/08/01 15:34UT) Object RA Dec mag sep mel Aldebaran 04:37:13.1 +16:33:10 0.8 28.37 104 Menkar 03:03:27.8 +04:10:37 2.5 5.78 129 PPM 145768 02:39:12.9 +07:47:30 6.2 1.76 134 PPM 145853 02:45:21.3 +07:28:53 8.4 0.62 133 PPM 145874 02:46:34.2 +07:50:47 9.6 0.23 132 13RQ109 02:46:13.6 +08:03:40 16.9 132 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 13RQ109, (2022/08/01 15:34UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 28.37 104 Menkar 03:02:16.8 +04:05:21 2.5 5.78 129 PPM 145768 02:38:00.9 +07:41:42 6.2 1.76 134 PPM 145853 02:44:09.3 +07:23:13 8.4 0.62 133 PPM 145874 02:45:22.0 +07:45:08 9.6 0.23 132 13RQ109 02:45:01.3 +07:58:01 16.9 132 Positions are for J2000
Event circumstances last updated at 2021/10/04 01:53:30 UT
Marc W. Buie, Southwest Research Institute