Event between (530838) 11UC411 and star GA1140:00703907 with event index number of 2443516
Geocentric closest approach at 2028/01/30 15:03:42 UTC
J2000 position of star is 04:23:31.4 +24:37:58
Equinox of date position of star is 04:24:55.4 +24:41:06
Stellar brightness G=12.1,
use SENSEUP=16 with the MallinCam and and exposure
time of 250 milli-seconds with the QHY174 camera.
Star is 75 degrees from the moon.
Moon is 14% illuminated.
Apparent brightness V=23.1
Object is 31.2 AU from the Sun
and 30.7 AU from the Earth.
Apparent velocity is 8.9
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 565 seconds.
The 1-sigma cross-track error in the shadow position is
1686 km.
The object has an absolute magnitude Hv=8.0
Diameter=151.4 km assuming a 5% albedo -- 16.7 sec chord
Diameter=61.8 km assuming a 30% albedo -- 6.8 sec chord
Dynamical classification is 3:2E
Star training set for 530838, (2028/01/30 15:19UT) Object RA Dec mag sep mel Aldebaran 04:37:32.1 +16:33:49 0.8 8.63 77 44Zet Per 03:55:54.3 +31:57:53 2.8 9.71 69 72 Tau 04:28:58.5 +23:03:25 5.3 1.85 75 PPM 093479 04:25:12.5 +24:28:06 7.6 0.23 74 PPM 093471 04:24:55.0 +24:51:31 11.2 0.18 74 530838 04:25:13.5 +24:41:47 12.1 75 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 530838, (2028/01/30 15:19UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 8.63 77 44Zet Per 03:54:07.9 +31:53:01 2.8 9.71 69 72 Tau 04:27:17.5 +22:59:45 5.3 1.85 75 PPM 093479 04:23:30.5 +24:24:18 7.6 0.23 74 PPM 093471 04:23:12.7 +24:47:42 11.2 0.18 74 530838 04:23:31.4 +24:37:58 12.1 74 Positions are for J2000
Event circumstances last updated at 2023/02/06 03:27:40 UT
Marc W. Buie, Southwest Research Institute