Event between 11QF99 and star GA1060:00767403 with event index number of 2123748
Geocentric closest approach at 2023/04/06 13:58:23 UTC
J2000 position of star is 05:06:53.9 +16:22:27
Equinox of date position of star is 05:08:13.5 +16:24:12
Stellar brightness G=14.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 124 degrees from the moon.
Moon is 100% illuminated.
Apparent brightness V=22.5
Object is 17.4 AU from the Sun
and 17.9 AU from the Earth.
Apparent velocity is 21.3
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 177 seconds.
The 1-sigma cross-track error in the shadow position is
756 km.
The object has an absolute magnitude Hv=9.8
Diameter=66.4 km assuming a 5% albedo -- 3.1 sec chord
Diameter=27.1 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
Star training set for 11QF99, (2023/04/06 13:58UT) Object RA Dec mag sep mel Aldebaran 04:37:15.5 +16:33:15 0.8 7.43 131 Bellatrix 05:26:22.8 +06:22:08 1.6 10.97 119 15 Ori 05:11:02.0 +15:37:29 5.2 1.03 123 PPM 120629 05:09:13.0 +16:27:12 8.5 0.24 124 11QF99 05:08:14.4 +16:24:13 14.9 124 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 11QF99, (2023/04/06 13:58UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 7.43 131 Bellatrix 05:25:07.8 +06:20:58 1.6 10.97 119 15 Ori 05:09:42.0 +15:35:49 5.2 1.03 123 PPM 120629 05:07:52.6 +16:25:28 8.5 0.24 124 11QF99 05:06:53.9 +16:22:27 14.9 124 Positions are for J2000
Event circumstances last updated at 2023/01/08 03:31:58 UT
Marc W. Buie, Southwest Research Institute