Event between (492338) 14FW and star GA0700:12817951 with event index number of 1059417
Geocentric closest approach at 2021/02/20 20:03:47 UTC
J2000 position of star is 17:35:29.5 -19:22:30
Equinox of date position of star is 17:36:44.2 -19:23:14
Stellar brightness G=10.6,
use SENSEUP=4 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 169 degrees from the moon.
Moon is 60% illuminated.
TNO apparent brightness V=21.3
TNO is 12.2 AU from the Sun
and 12.5 AU from the Earth.
The TNO is moving 21.4
km/sec on the sky relative to the star, or,
8.5 arcsec/hr.
The 1-sigma error in the time of the event is 42 seconds.
The 1-sigma cross-track error in the shadow position is
505 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=59.7 km assuming a 5% albedo -- 2.8 sec chord
Diameter=24.4 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
Star training set for 492338, (2021/02/20 20:04UT) Object RA Dec mag sep mel Antares 16:30:42.4 -26:28:38 0.9 16.75 174 35Eta Oph 17:11:35.5 -15:44:59 2.6 7.01 172 PPM 267109 17:40:01.1 -21:55:24 6.4 2.65 169 PPM 233364 17:39:23.8 -19:59:07 8.5 0.87 169 PPM 233312 17:37:34.1 -19:32:49 9.8 0.25 169 492338 17:36:44.4 -19:23:14 10.6 169 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, (2021/02/20 20:04UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 16.75 174 35Eta Oph 17:10:22.7 -15:43:29 2.6 7.01 172 PPM 267109 17:38:44.8 -21:54:46 6.4 2.65 169 PPM 233364 17:38:08.6 -19:58:28 8.5 0.87 169 PPM 233312 17:36:19.1 -19:32:06 9.8 0.25 169 492338 17:35:29.5 -19:22:30 10.6 169 Positions are for J2000
Event circumstances last updated at 2021/02/06 20:36:54 UT
Marc W. Buie, Southwest Research Institute