Event between 06SF415 and star GA1060:18088671 with event index number of 2015619
Geocentric closest approach at 2021/12/24 16:30:13 UTC
J2000 position of star is 23:58:33.5 +16:50:37
Equinox of date position of star is 23:59:40.9 +16:57:56
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 142 degrees from the moon.
Moon is 74% illuminated.
TNO apparent brightness V=24.0
TNO is 40.1 AU from the Sun
and 40.1 AU from the Earth.
The TNO is moving 8.8
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 881 seconds.
The 1-sigma cross-track error in the shadow position is
4939 km.
The TNO has an absolute magnitude Hv=7.8
Diameter=164.4 km assuming a 5% albedo -- 18.7 sec chord
Diameter=67.1 km assuming a 30% albedo -- 7.6 sec chord
Dynamical classification is SCATEXTD
Star training set for 06SF415, (2021/12/24 16:30UT) Object RA Dec mag sep mel Deneb 20:42:10.9 +45:21:35 1.3 49.82 115 Algenib 00:14:22.2 +15:18:20 2.8 3.90 141 81Phi Peg 23:53:36.6 +19:14:33 5.1 2.70 141 PPM 116082 00:03:40.0 +16:22:45 7.4 1.12 142 PPM 142989 23:57:37.2 +17:04:45 9.5 0.51 142 PPM 143000 23:58:34.7 +16:38:01 10.7 0.42 142 06SF415 23:59:41.1 +16:57:57 15.8 142 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 06SF415, (2021/12/24 16:30UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 49.82 115 Algenib 00:13:14.2 +15:11:01 2.8 3.90 141 81Phi Peg 23:52:29.3 +19:07:12 5.1 2.70 141 PPM 116082 00:02:32.3 +16:15:24 7.4 1.12 142 PPM 142989 23:56:29.7 +16:57:24 9.5 0.51 142 PPM 143000 23:57:27.2 +16:30:41 10.7 0.42 142 06SF415 23:58:33.5 +16:50:37 15.8 142 Positions are for J2000
Event circumstances last updated at 2021/12/04 02:02:20 UT
Marc W. Buie, Southwest Research Institute