Event between (183595) 03TG58 and star GA1120:01660445 with event index number of 2431294
Geocentric closest approach at 2021/12/28 00:17:18 UTC
J2000 position of star is 05:59:42.9 +23:38:20
Equinox of date position of star is 06:01:03.1 +23:38:19
Stellar brightness G=15.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 108 degrees from the moon.
Moon is 40% illuminated.
TNO apparent brightness V=22.8
TNO is 42.0 AU from the Sun
and 41.0 AU from the Earth.
The TNO is moving 25.4
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 333 seconds.
The 1-sigma cross-track error in the shadow position is
2063 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=291.1 km assuming a 5% albedo -- 11.5 sec chord
Diameter=118.8 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 183595, (2021/12/28 00:17UT) Object RA Dec mag sep mel Betelgeuse 05:56:21.8 +07:24:34 0.4 16.27 109 Alnath 05:27:41.0 +28:37:26 1.6 8.99 115 PPM 095124 05:58:16.9 +24:15:04 5.8 0.88 108 PPM 095218 06:01:48.3 +22:53:57 7.3 0.76 108 PPM 095172 05:59:58.6 +23:39:59 9.5 0.25 108 183595 06:01:03.3 +23:38:19 15.0 108 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 183595, (2021/12/28 00:17UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 16.27 109 Alnath 05:26:17.6 +28:36:23 1.6 8.99 115 PPM 095124 05:56:56.1 +24:14:59 5.8 0.88 108 PPM 095218 06:00:28.3 +22:53:59 7.3 0.76 108 PPM 095172 05:58:38.1 +23:39:57 9.5 0.25 108 183595 05:59:42.9 +23:38:20 15.0 108 Positions are for J2000
Event circumstances last updated at 2021/12/05 02:00:36 UT
Marc W. Buie, Southwest Research Institute