Event between 01SD291 and star GA1000:00190015 with event index number of 206138
Geocentric closest approach at 2019/07/12 16:29:57 UTC
J2000 position of star is 02:09:57.3 +10:31:26
Equinox of date position of star is 02:10:59.8 +10:36:54
Stellar brightness G=16.7,
use SENSEUP=128
Star is 153 degrees from the moon.
Moon is 83% illuminated.
TNO apparent brightness V=24.6
TNO is 42.1 AU from the Sun
and 42.4 AU from the Earth.
The TNO is moving 11.9
km/sec on the sky relative to the star, or,
1.4 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
1537 km.
The TNO has an absolute magnitude Hv=8.2
Diameter=138.7 km assuming a 5% albedo -- 11.7 sec chord
Diameter=56.6 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is CLASSICAL
Star training set for 01SD291, (2019/07/12 16:30UT) Object RA Dec mag sep mel Aldebaran 04:37:02.6 +16:32:49 0.8 35.93 171 6Bet Ari 01:55:43.4 +20:54:10 2.6 10.92 151 65Xi 1Cet 02:14:02.3 +08:56:15 4.4 1.84 153 PPM 118030 02:13:32.6 +10:25:10 8.5 0.66 154 PPM 117977 02:09:25.6 +10:41:41 9.5 0.39 153 PPM 118002 02:11:38.9 +10:40:12 11.6 0.17 153 01SD291 02:11:00.0 +10:36:55 16.7 153 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 01SD291, (2019/07/12 16:30UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 35.93 171 6Bet Ari 01:54:38.5 +20:48:27 2.6 10.92 151 65Xi 1Cet 02:13:00.0 +08:50:48 4.4 1.84 153 PPM 118030 02:12:29.9 +10:19:43 8.5 0.66 154 PPM 117977 02:08:23.0 +10:36:09 9.5 0.39 153 PPM 118002 02:10:36.2 +10:34:43 11.6 0.17 153 01SD291 02:09:57.3 +10:31:26 16.7 153 Positions are for J2000
Event circumstances last updated at 2019/06/16 22:02:32 UT
Marc W. Buie, Southwest Research Institute