Event between 13TA172 and star GA0900:00136739 with event index number of 2675523
Geocentric closest approach at 2022/12/19 12:39:49 UTC
J2000 position of star is 01:37:38.6 +01:49:36
Equinox of date position of star is 01:38:48.9 +01:56:31
Stellar brightness G=14.1,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 166 degrees from the moon.
Moon is 20% illuminated.
TNO apparent brightness V=23.3
TNO is 32.7 AU from the Sun
and 32.2 AU from the Earth.
The TNO is moving 8.1
km/sec on the sky relative to the star, or,
1.2 arcsec/hr.
The 1-sigma error in the time of the event is 818 seconds.
The 1-sigma cross-track error in the shadow position is
2810 km.
The TNO has an absolute magnitude Hv=8.0
Diameter=152.8 km assuming a 5% albedo -- 19.0 sec chord
Diameter=62.4 km assuming a 30% albedo -- 7.7 sec chord
Dynamical classification is SCATNEAR
Star training set for 13TA172, (2022/12/19 12:41UT) Object RA Dec mag sep mel Fomalhaut 22:58:54.9 -29:30:00 1.2 49.47 117 68Omi Cet 02:20:30.5 -02:52:28 2.0 11.48 164 PPM 144619 01:28:05.0 +03:39:13 6.5 3.18 166 PPM 144825 01:39:31.2 +02:42:08 8.2 0.78 167 PPM 144802 01:38:00.6 +01:33:49 10.0 0.43 166 PPM 144835 01:40:06.3 +01:50:04 10.8 0.34 166 13TA172 01:38:49.6 +01:56:35 14.1 166 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 13TA172, (2022/12/19 12:41UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 49.47 117 68Omi Cet 02:19:20.8 -02:58:45 2.0 11.48 164 PPM 144619 01:26:53.6 +03:32:06 6.5 3.18 166 PPM 144825 01:38:20.0 +02:35:10 8.2 0.78 167 PPM 144802 01:36:49.6 +01:26:50 10.0 0.43 166 PPM 144835 01:38:55.3 +01:43:06 10.8 0.34 166 13TA172 01:37:38.6 +01:49:36 14.1 166 Positions are for J2000
Event circumstances last updated at 2022/09/28 04:21:21 UT
Marc W. Buie, Southwest Research Institute