Event between (120178) 03OP32 and star GA0920:18017129 with event index number of 147936
Geocentric closest approach at 2018/09/05 19:20:42 UTC
J2000 position of star is 22:27:42.7 +02:55:26
Equinox of date position of star is 22:28:38.8 +03:01:06
Stellar brightness G=16.3,
use SENSEUP=128
Star is 128 degrees from the moon.
Moon is 21% illuminated.
TNO apparent brightness V=20.2
TNO is 42.4 AU from the Sun
and 41.4 AU from the Earth.
The TNO is moving 25.4
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 124 seconds.
The 1-sigma cross-track error in the shadow position is
1953 km.
The TNO has an absolute magnitude Hv=3.9
Diameter=1000.0 km assuming a 5% albedo -- 39.4 sec chord
Diameter=408.3 km assuming a 30% albedo -- 16.1 sec chord
Dynamical classification is SCATEXTD
Star training set for 120178, (2018/09/05 19:21UT) Object RA Dec mag sep mel Fomalhaut 22:58:40.7 -29:31:22 1.2 33.33 130 Markab 23:05:41.6 +15:18:22 2.5 15.30 114 34 Peg 22:27:34.5 +04:29:23 6.4 1.49 128 PPM 173118 22:31:18.1 +02:08:16 8.2 1.10 128 PPM 173077 22:29:04.2 +02:51:04 9.5 0.20 128 PPM 173070 22:28:39.2 +03:00:31 10.5 0.01 128 120178 22:28:39.6 +03:01:11 16.3 128 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 120178, (2018/09/05 19:21UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.5 -29:37:23 1.2 33.33 130 Markab 23:04:45.7 +15:12:18 2.5 15.30 114 34 Peg 22:26:37.8 +04:23:39 6.4 1.49 128 PPM 173118 22:30:21.0 +02:02:29 8.2 1.10 128 PPM 173077 22:28:07.2 +02:45:19 9.5 0.20 128 PPM 173070 22:27:42.3 +02:54:46 10.5 0.01 128 120178 22:27:42.7 +02:55:26 16.3 128 Positions are for J2000
Event circumstances last updated at 2018/06/05 16:24:07 UT
Marc W. Buie, Southwest Research Institute