Event between 03HM57 and star GA0540:30545920 with event index number of 1156595
Geocentric closest approach at 2021/04/12 13:20:34 UTC
J2000 position of star is 18:09:45.6 -34:03:54
Equinox of date position of star is 18:11:09.5 -34:03:34
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 115 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=20.5
TNO is 14.9 AU from the Sun
and 14.5 AU from the Earth.
The TNO is moving 5.6
km/sec on the sky relative to the star, or,
1.9 arcsec/hr.
The 1-sigma error in the time of the event is 129 seconds.
The 1-sigma cross-track error in the shadow position is
2602 km.
The TNO has an absolute magnitude Hv=8.5
Diameter=120.2 km assuming a 5% albedo -- 21.6 sec chord
Diameter=49.1 km assuming a 30% albedo -- 8.8 sec chord
Dynamical classification is CENTAURR
Star training set for 03HM57, (2021/04/12 13:21UT) Object RA Dec mag sep mel Antares 16:30:42.9 -26:28:39 0.9 22.90 137 Kap Sco 17:43:57.7 -39:02:20 2.4 7.39 119 PPM 297354 18:12:19.8 -33:47:39 6.3 0.36 114 PPM 297349 18:12:06.3 -33:54:47 7.1 0.24 114 03HM57 18:11:10.2 -34:03:34 16.8 114 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, (2021/04/12 13:21UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 22.90 137 Kap Sco 17:42:29.3 -39:01:49 2.4 7.39 119 PPM 297354 18:10:55.4 -33:48:00 6.3 0.36 114 PPM 297349 18:10:41.7 -33:55:08 7.1 0.24 114 03HM57 18:09:45.6 -34:03:54 16.8 115 Positions are for J2000
Event circumstances last updated at 2021/02/06 20:52:41 UT
Marc W. Buie, Southwest Research Institute