Event between (168703) 00GP183 and star GA0640:07938115 with event index number of 1965845
Geocentric closest approach at 2026/04/20 19:06:04 UTC
J2000 position of star is 16:33:04.9 -25:35:57
Equinox of date position of star is 16:34:34.1 -25:38:56
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 174 degrees from the moon.
Moon is 15% illuminated.
Apparent brightness V=21.8
Object is 36.8 AU from the Sun
and 36.0 AU from the Earth.
Apparent velocity is 17.4
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 154 seconds.
The 1-sigma cross-track error in the shadow position is
1525 km.
The object has an absolute magnitude Hv=6.1
Diameter=368.1 km assuming a 5% albedo -- 21.3 sec chord
Diameter=150.3 km assuming a 30% albedo -- 8.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 168703, (2026/04/20 19:05UT) Object RA Dec mag sep mel Antares 16:31:01.5 -26:29:17 0.9 1.17 173 23Tau Sco 16:37:31.5 -28:16:06 2.8 2.69 175 22 Sco 16:31:48.6 -25:10:15 4.5 0.81 173 PPM 265637 16:33:30.6 -26:03:57 8.4 0.49 174 PPM 265665 16:35:37.1 -25:52:03 9.8 0.30 174 168703 16:34:41.5 -25:39:11 16.5 174 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 168703, (2026/04/20 19:05UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 1.17 173 23Tau Sco 16:35:52.9 -28:12:58 2.8 2.69 175 22 Sco 16:30:12.5 -25:06:55 4.5 0.81 173 PPM 265637 16:31:53.8 -26:00:41 8.4 0.49 174 PPM 265665 16:34:00.4 -25:48:51 9.8 0.30 174 168703 16:33:04.9 -25:35:57 16.5 174 Positions are for J2000
Event circumstances last updated at 2024/04/18 03:43:30 UT
Marc W. Buie, Southwest Research Institute