Event between 05RH52 and star GA1100:00017209 with event index number of 1959493
Geocentric closest approach at 2021/10/20 18:53:38 UTC
J2000 position of star is 00:08:18.0 +21:48:48
Equinox of date position of star is 00:09:25.3 +21:56:03
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 29 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=23.8
TNO is 42.1 AU from the Sun
and 41.2 AU from the Earth.
The TNO is moving 22.8
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 155 seconds.
The 1-sigma cross-track error in the shadow position is
3446 km.
The TNO has an absolute magnitude Hv=7.5
Diameter=192.3 km assuming a 5% albedo -- 8.4 sec chord
Diameter=78.5 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is SCATNEAR
Star training set for 05RH52, (2021/10/20 18:47UT) Object RA Dec mag sep mel Deneb 20:42:10.6 +45:21:33 1.3 48.03 75 Algenib 00:14:21.7 +15:18:17 2.8 6.73 25 PPM 089549 00:16:03.9 +22:24:19 6.0 1.61 27 PPM 089418 00:08:09.5 +22:57:56 8.3 1.07 29 PPM 089440 00:09:30.6 +22:02:45 9.4 0.11 29 05RH52 00:09:25.5 +21:56:04 16.7 28 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 05RH52, (2021/10/20 18:47UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 48.03 75 Algenib 00:13:14.2 +15:11:01 2.8 6.73 25 PPM 089549 00:14:56.0 +22:17:03 6.0 1.61 27 PPM 089418 00:07:02.0 +22:50:40 8.3 1.07 29 PPM 089440 00:08:23.1 +21:55:29 9.4 0.11 29 05RH52 00:08:18.0 +21:48:48 16.7 28 Positions are for J2000
Event circumstances last updated at 2021/10/02 02:24:20 UT
Marc W. Buie, Southwest Research Institute