Event between 03HM57 and star GA0560:31306051 with event index number of 1156539
Geocentric closest approach at 2021/03/22 04:09:00 UTC
J2000 position of star is 18:08:35.1 -33:47:36
Equinox of date position of star is 18:09:58.9 -33:47:19
Stellar brightness G=15.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 170 degrees from the moon.
Moon is 56% illuminated.
TNO apparent brightness V=20.6
TNO is 14.9 AU from the Sun
and 14.9 AU from the Earth.
The TNO is moving 11.8
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 206 seconds.
The 1-sigma cross-track error in the shadow position is
1109 km.
The TNO has an absolute magnitude Hv=8.5
Diameter=120.2 km assuming a 5% albedo -- 10.2 sec chord
Diameter=49.1 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is CENTAURR
Star training set for 03HM57, (2021/03/22 04:09UT) Object RA Dec mag sep mel Antares 16:30:42.7 -26:28:38 0.9 22.61 152 Kap Sco 17:43:57.4 -39:02:20 2.4 7.41 162 PPM 297354 18:12:19.6 -33:47:39 6.3 0.49 170 PPM 297309 18:10:31.7 -33:33:32 8.4 0.26 170 03HM57 18:09:59.3 -33:47:19 15.9 170 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 03HM57, (2021/03/22 04:09UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 22.61 152 Kap Sco 17:42:29.3 -39:01:49 2.4 7.41 162 PPM 297354 18:10:55.4 -33:48:00 6.3 0.49 170 PPM 297309 18:09:07.7 -33:33:51 8.4 0.26 170 03HM57 18:08:35.1 -33:47:36 15.9 170 Positions are for J2000
Event circumstances last updated at 2021/02/06 20:46:25 UT
Marc W. Buie, Southwest Research Institute