Event between (85627) 98HP151 and star GA0660:12719614 with event index number of 2405901
Geocentric closest approach at 2022/07/15 21:01:30 UTC
J2000 position of star is 17:24:24.2 -23:52:58
Equinox of date position of star is 17:25:45.5 -23:54:06
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 61 degrees from the moon.
Moon is 93% illuminated.
TNO apparent brightness V=23.6
TNO is 41.1 AU from the Sun
and 40.2 AU from the Earth.
The TNO is moving 20.2
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 210 seconds.
The 1-sigma cross-track error in the shadow position is
1773 km.
The TNO has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 9.9 sec chord
Diameter=81.5 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is CLASSICAL
Star training set for 85627, (2022/07/15 21:02UT) Object RA Dec mag sep mel Antares 16:30:47.6 -26:28:48 0.9 12.70 73 35Eta Oph 17:11:40.3 -15:45:04 2.6 8.80 66 PPM 266836 17:26:29.0 -24:15:44 6.4 0.39 61 PPM 266814 17:25:26.0 -23:51:49 7.0 0.09 61 85627 17:25:46.7 -23:54:07 16.7 61 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 85627, (2022/07/15 21:02UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 12.70 73 35Eta Oph 17:10:22.7 -15:43:29 2.6 8.80 66 PPM 266836 17:25:06.3 -24:14:37 6.4 0.39 61 PPM 266814 17:24:03.5 -23:50:40 7.0 0.09 61 85627 17:24:24.2 -23:52:58 16.7 61 Positions are for J2000
Event circumstances last updated at 2022/03/16 00:55:57 UT
Marc W. Buie, Southwest Research Institute