Event between (517717) 15KZ120 and star GA1600:00751131 with event index number of 2627368
Geocentric closest approach at 2022/12/30 16:17:15 UTC
J2000 position of star is 01:43:19.2 +70:36:04
Equinox of date position of star is 01:45:07.2 +70:42:53
Stellar brightness G=13.0,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 66 degrees from the moon.
Moon is 57% illuminated.
TNO apparent brightness V=20.8
TNO is 11.1 AU from the Sun
and 10.6 AU from the Earth.
The TNO is moving 33.6
km/sec on the sky relative to the star, or,
15.7 arcsec/hr.
The 1-sigma error in the time of the event is 22 seconds.
The 1-sigma cross-track error in the shadow position is
1482 km.
The TNO has an absolute magnitude Hv=10.1
Diameter=57.5 km assuming a 5% albedo -- 1.7 sec chord
Diameter=23.5 km assuming a 30% albedo -- 0.7 sec chord
Dynamical classification is CENTAURR
Star training set for 517717, (2022/12/30 16:17UT) Object RA Dec mag sep mel Deneb 20:42:13.0 +45:21:48 1.3 43.21 70 37Del Cas 01:27:20.4 +60:21:14 2.7 10.52 56 42 Cas 01:44:45.2 +70:44:15 5.3 0.04 66 PPM 004819 01:54:03.2 +70:51:51 8.2 0.75 67 42 Cas 01:44:45.2 +70:44:15 5.3 0.04 66 517717 01:45:08.4 +70:42:58 13.0 67 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 517717, (2022/12/30 16:17UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 43.21 70 37Del Cas 01:25:49.8 +60:14:06 2.7 10.52 56 42 Cas 01:42:56.1 +70:37:21 5.3 0.04 66 PPM 004819 01:52:10.7 +70:45:05 8.2 0.75 67 42 Cas 01:42:56.1 +70:37:21 5.3 0.04 66 517717 01:43:19.2 +70:36:04 13.0 66 Positions are for J2000
Event circumstances last updated at 2022/10/02 04:12:15 UT
Marc W. Buie, Southwest Research Institute