Event between (469708) 05GE187 and star GA0820:06456982 with event index number of 1200287
Geocentric closest approach at 2023/02/27 08:13:12 UTC
J2000 position of star is 17:43:25.3 -07:52:15
Equinox of date position of star is 17:44:36.3 -07:52:45
Stellar brightness G=15.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 155 degrees from the moon.
Moon is 50% illuminated.
TNO apparent brightness V=22.2
TNO is 27.3 AU from the Sun
and 27.5 AU from the Earth.
The TNO is moving 18.1
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 87 seconds.
The 1-sigma cross-track error in the shadow position is
1105 km.
The TNO has an absolute magnitude Hv=7.6
Diameter=184.5 km assuming a 5% albedo -- 10.2 sec chord
Diameter=75.3 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is 3:2E
Star training set for 469708, (2023/02/27 08:13UT) Object RA Dec mag sep mel Antares 16:30:49.9 -26:28:53 0.9 25.56 178 35Eta Oph 17:11:42.5 -15:45:07 2.6 11.27 166 PPM 201153 17:53:53.2 -06:08:51 5.9 2.87 152 PPM 200994 17:45:49.9 -07:25:00 8.3 0.54 154 PPM 200982 17:45:15.8 -08:02:05 8.9 0.21 155 469708 17:44:40.8 -07:52:47 15.7 155 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 469708, (2023/02/27 08:13UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 25.56 178 35Eta Oph 17:10:22.7 -15:43:29 2.6 11.27 166 PPM 201153 17:52:38.7 -06:08:37 5.9 2.87 152 PPM 200994 17:44:34.7 -07:24:30 8.3 0.54 154 PPM 200982 17:44:00.2 -08:01:33 8.9 0.21 155 469708 17:43:25.3 -07:52:15 15.7 155 Positions are for J2000
Event circumstances last updated at 2021/10/16 01:17:39 UT
Marc W. Buie, Southwest Research Institute