Event between (499522) 10PL66 and star GA1200:00400188 with event index number of 2653898
Geocentric closest approach at 2028/09/27 19:04:24 UTC
J2000 position of star is 02:26:58.8 +30:00:17
Equinox of date position of star is 02:28:24.4 +30:06:45
Stellar brightness G=13.2,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 103 degrees from the moon.
Moon is 72% illuminated.
Apparent brightness V=19.8
Object is 15.2 AU from the Sun
and 14.5 AU from the Earth.
Apparent velocity is 17.1
km/sec on the sky relative to the star, or,
5.9 arcsec/hr.
The 1-sigma error in the time of the event is 143 seconds.
The 1-sigma cross-track error in the shadow position is
2021 km.
The object has an absolute magnitude Hv=7.8
Diameter=162.9 km assuming a 5% albedo -- 9.6 sec chord
Diameter=66.5 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is CENTAURR
Star training set for 499522, (2028/09/27 19:06UT) Object RA Dec mag sep mel Aldebaran 04:37:34.4 +16:33:54 0.8 32.39 129 Hamal 02:08:48.0 +23:35:50 2.0 7.89 97 13 Tri 02:30:30.2 +30:03:33 6.5 0.40 103 PPM 091701 02:29:53.5 +30:00:03 8.1 0.29 103 PPM 091675 02:27:53.9 +30:03:27 8.8 0.18 102 PPM 091687 02:29:08.8 +30:01:55 10.6 0.14 103 499522 02:28:40.5 +30:07:58 13.2 103 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 499522, (2028/09/27 19:06UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 32.39 129 Hamal 02:07:10.7 +23:27:41 2.0 7.89 97 13 Tri 02:28:48.4 +29:55:56 6.5 0.40 103 PPM 091701 02:28:11.7 +29:52:24 8.1 0.29 103 PPM 091675 02:26:12.2 +29:55:45 8.8 0.18 102 PPM 091687 02:27:27.1 +29:54:15 10.6 0.14 103 499522 02:26:58.8 +30:00:17 13.2 103 Positions are for J2000
Event circumstances last updated at 2024/03/07 04:45:58 UT
Marc W. Buie, Southwest Research Institute