Event between (492338) 14FW and star GA0700:14416431 with event index number of 1165842
Geocentric closest approach at 2021/04/16 17:12:15 UTC
J2000 position of star is 17:40:25.2 -19:27:06
Equinox of date position of star is 17:41:40.4 -19:27:41
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 171 degrees from the moon.
Moon is 18% illuminated.
TNO apparent brightness V=21.2
TNO is 12.3 AU from the Sun
and 11.8 AU from the Earth.
The TNO is moving 5.4
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 165 seconds.
The 1-sigma cross-track error in the shadow position is
510 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=59.7 km assuming a 5% albedo -- 11.1 sec chord
Diameter=24.4 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is CENTAURR
Star training set for 492338, (2021/04/16 17:12UT) Object RA Dec mag sep mel Antares 16:30:43.0 -26:28:39 0.9 17.75 172 35Eta Oph 17:11:36.0 -15:44:59 2.6 8.07 172 58 Oph 17:44:42.4 -21:41:30 4.9 2.34 171 PPM 233364 17:39:24.4 -19:59:07 8.5 0.75 171 PPM 233466 17:43:02.7 -19:16:05 9.1 0.38 170 492338 17:41:40.7 -19:27:41 15.6 170 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 492338, (2021/04/16 17:12UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 17.75 172 35Eta Oph 17:10:22.7 -15:43:29 2.6 8.07 172 58 Oph 17:43:25.7 -21:41:00 4.9 2.34 171 PPM 233364 17:38:08.6 -19:58:28 8.5 0.75 171 PPM 233466 17:41:47.4 -19:15:32 9.1 0.38 170 492338 17:40:25.2 -19:27:06 15.6 171 Positions are for J2000
Event circumstances last updated at 2021/03/11 01:30:38 UT
Marc W. Buie, Southwest Research Institute