Event between (612688) 03UT292 and star GA0920:02804338 with event index number of 2817564
Geocentric closest approach at 2027/12/24 21:19:35 UTC
J2000 position of star is 07:29:00.1 +03:41:57
Equinox of date position of star is 07:30:10.7 +03:39:06
Stellar brightness G=15.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 122 degrees from the moon.
Moon is 9% illuminated.
TNO apparent brightness V=21.6
TNO is 27.7 AU from the Sun
and 26.9 AU from the Earth.
The TNO is moving 22.2
km/sec on the sky relative to the star, or,
4.1 arcsec/hr.
The 1-sigma error in the time of the event is 446 seconds.
The 1-sigma cross-track error in the shadow position is
2192 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=231.2 km assuming a 5% albedo -- 10.4 sec chord
Diameter=94.4 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is 3:2E
Star training set for 612688, (2027/12/24 21:20UT) Object RA Dec mag sep mel Sirius 06:46:23.0 -16:45:16 -1.5 23.12 119 Alhena 06:39:19.7 +16:22:23 1.9 17.89 138 8Del2CMi 07:34:39.6 +03:13:42 5.9 1.12 120 PPM 152733 07:30:46.0 +03:19:14 7.8 0.33 121 PPM 152727 07:30:33.2 +03:44:45 8.8 0.11 121 612688 07:30:28.4 +03:38:23 15.2 121 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 612688, (2027/12/24 21:20UT) Object RA Dec mag sep mel Sirius 06:45:08.0 -16:43:25 -1.5 23.12 119 Alhena 06:37:42.8 +16:23:56 1.9 17.89 138 8Del2CMi 07:33:11.6 +03:17:26 5.9 1.12 120 PPM 152733 07:29:18.0 +03:22:48 7.8 0.33 121 PPM 152727 07:29:04.9 +03:48:19 8.8 0.11 121 612688 07:29:00.1 +03:41:57 15.2 121 Positions are for J2000
Event circumstances last updated at 2022/05/19 23:07:24 UT
Marc W. Buie, Southwest Research Institute