Event between (26308) 98SM165 and star GA0960:00256138 with event index number of 212557
Geocentric closest approach at 2019/09/30 21:58:59 UTC
J2000 position of star is 03:00:45.7 +07:35:29
Equinox of date position of star is 03:01:48.0 +07:40:03
Stellar brightness G=15.7,
use SENSEUP=128
Star is 171 degrees from the moon.
Moon is 7% illuminated.
TNO apparent brightness V=21.9
TNO is 41.3 AU from the Sun
and 40.5 AU from the Earth.
The TNO is moving 19.6
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 256 seconds.
The 1-sigma cross-track error in the shadow position is
2230 km.
The TNO has an absolute magnitude Hv=5.7
Diameter=436.5 km assuming a 5% albedo -- 22.2 sec chord
Diameter=178.2 km assuming a 30% albedo -- 9.1 sec chord
Dynamical classification is 2:1E+6:3EII
Star training set for 26308, (2019/09/30 21:59UT) Object RA Dec mag sep mel Aldebaran 04:37:03.4 +16:32:51 0.8 24.88 148 Menkar 03:03:18.8 +04:09:58 2.5 3.52 170 91Lam Cet 03:00:46.6 +08:59:06 4.7 1.34 172 PPM 146197 03:05:00.8 +07:21:28 7.9 0.85 170 PPM 146128 03:00:54.2 +07:36:15 9.2 0.24 172 26308 03:01:49.0 +07:40:08 15.7 171 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 26308, (2019/09/30 21:59UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 24.88 148 Menkar 03:02:16.8 +04:05:21 2.5 3.52 170 91Lam Cet 02:59:42.9 +08:54:26 4.7 1.34 172 PPM 146197 03:03:57.6 +07:16:54 7.9 0.85 170 PPM 146128 02:59:51.0 +07:31:36 9.2 0.24 172 26308 03:00:45.7 +07:35:29 15.7 171 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:42:05 UT
Marc W. Buie, Southwest Research Institute