Event between (85627) 98HP151 and star GA0640:16900116 with event index number of 2406835
Geocentric closest approach at 2024/09/24 18:57:18 UTC
J2000 position of star is 17:35:03.6 -24:03:57
Equinox of date position of star is 17:36:33.3 -24:04:49
Stellar brightness G=15.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 171 degrees from the moon.
Moon is 50% illuminated.
Apparent brightness V=23.5
Object is 41.0 AU from the Sun
and 41.1 AU from the Earth.
Apparent velocity is 9.2
km/sec on the sky relative to the star, or,
1.1 arcsec/hr.
The 1-sigma error in the time of the event is 550 seconds.
The 1-sigma cross-track error in the shadow position is
2401 km.
The object has an absolute magnitude Hv=7.2
Diameter=199.5 km assuming a 5% albedo -- 23.3 sec chord
Diameter=81.5 km assuming a 30% albedo -- 9.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 85627, (2024/09/24 18:57UT) Object RA Dec mag sep mel Antares 16:30:55.7 -26:29:05 0.9 15.02 158 35Eta Oph 17:11:47.9 -15:45:14 2.6 10.16 161 51 Oph 17:32:55.6 -23:58:46 4.8 0.84 170 PPM 267044 17:37:05.1 -24:38:35 7.9 0.57 171 PPM 267039 17:36:59.5 -23:48:40 9.9 0.29 171 85627 17:36:34.3 -24:04:49 15.9 171 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 85627, (2024/09/24 18:57UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 15.02 158 35Eta Oph 17:10:22.7 -15:43:29 2.6 10.16 161 51 Oph 17:31:25.0 -23:57:46 4.8 0.84 170 PPM 267044 17:35:33.9 -24:37:44 7.9 0.57 171 PPM 267039 17:35:28.9 -23:47:49 9.9 0.29 171 85627 17:35:03.6 -24:03:57 15.9 171 Positions are for J2000
Event circumstances last updated at 2024/06/12 03:40:14 UT
Marc W. Buie, Southwest Research Institute