Event between 20YR3 and star GA1180:00856446 with event index number of 2179418
Geocentric closest approach at 2023/12/26 14:00:50 UTC
J2000 position of star is 04:32:08.7 +28:58:31
Equinox of date position of star is 04:33:38.9 +29:01:29
Stellar brightness G=16.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 19 degrees from the moon.
Moon is 100% illuminated.
Apparent brightness V=21.6
Object is 16.7 AU from the Sun
and 15.8 AU from the Earth.
Apparent velocity is 37.9
km/sec on the sky relative to the star, or,
11.9 arcsec/hr.
The 1-sigma error in the time of the event is 26 seconds.
The 1-sigma cross-track error in the shadow position is
615 km.
The object has an absolute magnitude Hv=9.3
Diameter=83.9 km assuming a 5% albedo -- 2.2 sec chord
Diameter=34.3 km assuming a 30% albedo -- 0.9 sec chord
Dynamical classification is CENTAURR
Star training set for 20YR3, (2023/12/26 14:03UT) Object RA Dec mag sep mel Aldebaran 04:37:18.0 +16:33:20 0.8 12.50 22 3Iot Aur 04:58:33.6 +33:12:06 2.7 6.77 14 PPM 093607 04:36:08.3 +29:00:33 5.7 0.54 18 PPM 093563 04:31:49.9 +28:10:58 7.3 0.93 19 PPM 093583 04:33:41.2 +29:03:55 9.6 0.04 19 20YR3 04:33:38.9 +29:01:29 16.1 18 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 20YR3, (2023/12/26 14:03UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 12.50 22 3Iot Aur 04:56:59.6 +33:09:58 2.7 6.77 14 PPM 093607 04:34:38.0 +28:57:40 5.7 0.54 18 PPM 093563 04:30:20.3 +28:07:56 7.3 0.93 19 PPM 093583 04:32:10.9 +29:00:57 9.6 0.04 19 20YR3 04:32:08.7 +28:58:31 16.1 19 Positions are for J2000
Event circumstances last updated at 2023/12/22 05:44:26 UT
Marc W. Buie, Southwest Research Institute