Event between (175113) 04PF115 and star GA0700:34805221 with event index number of 1105988
Geocentric closest approach at 2021/05/19 12:11:23 UTC
J2000 position of star is 23:22:23.2 -18:12:18
Equinox of date position of star is 23:23:29.5 -18:05:21
Stellar brightness G=12.2,
use SENSEUP=16 with the MallinCam and and exposure
time of 250 milli-seconds with the QHY174 camera.
Star is 160 degrees from the moon.
Moon is 47% illuminated.
TNO apparent brightness V=21.0
TNO is 41.6 AU from the Sun
and 41.8 AU from the Earth.
The TNO is moving 14.3
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 133 seconds.
The 1-sigma cross-track error in the shadow position is
1583 km.
The TNO has an absolute magnitude Hv=4.6
Diameter=721.1 km assuming a 5% albedo -- 50.3 sec chord
Diameter=294.4 km assuming a 30% albedo -- 20.6 sec chord
Dynamical classification is CLASSICAL
Star training set for 175113, (2021/05/19 12:11UT) Object RA Dec mag sep mel Fomalhaut 22:58:49.6 -29:30:31 1.2 12.73 162 PPM 241574 23:25:15.4 -18:34:12 6.4 0.64 159 PPM 241502 23:22:03.2 -18:25:35 6.9 0.48 160 PPM 241506 23:22:15.9 -17:56:48 10.0 0.33 160 175113 23:23:30.5 -18:05:15 12.2 159 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 175113, (2021/05/19 12:11UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 12.73 162 PPM 241574 23:24:08.1 -18:41:15 6.4 0.64 159 PPM 241502 23:20:55.9 -18:32:37 6.9 0.48 160 PPM 241506 23:21:08.6 -18:03:51 10.0 0.33 160 175113 23:22:23.2 -18:12:18 12.2 160 Positions are for J2000
Event circumstances last updated at 2021/01/21 21:02:26 UT
Marc W. Buie, Southwest Research Institute