Event between 15AD298 and star GA0640:00335468 with event index number of 2574693
Geocentric closest approach at 2022/03/23 22:40:58 UTC
J2000 position of star is 04:27:49.6 -25:03:38
Equinox of date position of star is 04:28:45.1 -25:00:45
Stellar brightness G=14.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 130 degrees from the moon.
Moon is 65% illuminated.
TNO apparent brightness V=22.0
TNO is 22.0 AU from the Sun
and 22.4 AU from the Earth.
The TNO is moving 29.7
km/sec on the sky relative to the star, or,
6.6 arcsec/hr.
The 1-sigma error in the time of the event is 103 seconds.
The 1-sigma cross-track error in the shadow position is
2934 km.
The TNO has an absolute magnitude Hv=8.3
Diameter=133.7 km assuming a 5% albedo -- 4.5 sec chord
Diameter=54.6 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is CENTAURS
Star training set for 15AD298, (2022/03/23 22:41UT) Object RA Dec mag sep mel Rigel 05:15:36.4 -08:10:39 0.1 20.20 147 Nihal 05:29:11.9 -20:44:35 2.8 14.55 134 PPM 247556 04:27:53.1 -24:01:59 6.3 1.00 131 PPM 247571 04:28:27.5 -24:24:34 8.3 0.61 130 PPM 247579 04:28:46.9 -24:57:31 9.4 0.05 130 15AD298 04:28:45.2 -25:00:45 14.9 130 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 15AD298, (2022/03/23 22:41UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 20.20 147 Nihal 05:28:14.7 -20:45:36 2.8 14.55 134 PPM 247556 04:26:56.9 -24:04:54 6.3 1.00 131 PPM 247571 04:27:31.6 -24:27:28 8.3 0.61 130 PPM 247579 04:27:51.3 -25:00:25 9.4 0.05 130 15AD298 04:27:49.6 -25:03:38 14.9 130 Positions are for J2000
Event circumstances last updated at 2022/03/15 00:59:36 UT
Marc W. Buie, Southwest Research Institute