Event between (85627) 98HP151 and star GA0640:16916553 with event index number of 2406837
Geocentric closest approach at 2024/09/28 20:15:46 UTC
J2000 position of star is 17:35:12.3 -24:03:59
Equinox of date position of star is 17:36:42.0 -24:04:50
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 121 degrees from the moon.
Moon is 14% illuminated.
Apparent brightness V=23.5
Object is 41.0 AU from the Sun
and 41.2 AU from the Earth.
Apparent velocity is 11.2
km/sec on the sky relative to the star, or,
1.4 arcsec/hr.
The 1-sigma error in the time of the event is 445 seconds.
The 1-sigma cross-track error in the shadow position is
2575 km.
The object has an absolute magnitude Hv=7.2
Diameter=199.5 km assuming a 5% albedo -- 19.1 sec chord
Diameter=81.5 km assuming a 30% albedo -- 7.8 sec chord
Dynamical classification is CLASSICAL
Star training set for 85627, (2024/09/28 20:16UT) Object RA Dec mag sep mel Antares 16:30:55.7 -26:29:05 0.9 15.05 107 35Eta Oph 17:11:47.9 -15:45:14 2.6 10.18 114 51 Oph 17:32:55.7 -23:58:47 4.8 0.87 120 PPM 267044 17:37:05.1 -24:38:35 7.9 0.57 121 PPM 267039 17:36:59.5 -23:48:40 9.9 0.28 121 85627 17:36:43.1 -24:04:51 15.8 121 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, (2024/09/28 20:16UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 15.05 107 35Eta Oph 17:10:22.7 -15:43:29 2.6 10.18 114 51 Oph 17:31:25.0 -23:57:46 4.8 0.87 120 PPM 267044 17:35:33.9 -24:37:44 7.9 0.57 121 PPM 267039 17:35:28.9 -23:47:49 9.9 0.28 121 85627 17:35:12.3 -24:03:59 15.8 121 Positions are for J2000
Event circumstances last updated at 2024/06/12 03:40:15 UT
Marc W. Buie, Southwest Research Institute