Event between (523601) 03UY413 and star GA1220:00356223 with event index number of 2626900
Geocentric closest approach at 2026/12/13 19:18:28 UTC
J2000 position of star is 02:08:28.2 +32:49:03
Equinox of date position of star is 02:09:53.0 +32:55:50
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 88 degrees from the moon.
Moon is 19% illuminated.
Apparent brightness V=21.8
Object is 43.2 AU from the Sun
and 42.5 AU from the Earth.
Apparent velocity is 19.2
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 98 seconds.
The 1-sigma cross-track error in the shadow position is
1761 km.
The object has an absolute magnitude Hv=5.4
Diameter=483.1 km assuming a 5% albedo -- 26.2 sec chord
Diameter=197.2 km assuming a 30% albedo -- 10.7 sec chord
Dynamical classification is SCATNEAR
Star training set for 523601, (2026/12/13 19:19UT) Object RA Dec mag sep mel Aldebaran 04:37:28.2 +16:33:41 0.8 37.00 116 Hamal 02:08:41.9 +23:35:20 2.0 9.36 84 3Eps Tri 02:04:32.9 +33:24:47 5.5 1.24 87 PPM 067032 02:11:51.9 +33:29:29 8.2 0.66 89 PPM 067018 02:11:30.0 +32:40:32 9.2 0.40 88 PPM 067003 02:10:29.3 +33:13:05 11.6 0.29 88 523601 02:10:03.5 +32:56:40 16.6 89 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 523601, (2026/12/13 19:19UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 37.00 116 Hamal 02:07:10.7 +23:27:41 2.0 9.36 84 3Eps Tri 02:02:57.8 +33:17:04 5.5 1.24 87 PPM 067032 02:10:16.1 +33:21:55 8.2 0.66 89 PPM 067018 02:09:54.7 +32:32:58 9.2 0.40 88 PPM 067003 02:08:53.8 +33:05:29 11.6 0.29 88 523601 02:08:28.2 +32:49:03 16.6 88 Positions are for J2000
Event circumstances last updated at 2023/12/23 04:23:27 UT
Marc W. Buie, Southwest Research Institute