Event between (530930) 11WG157 and star GA1320:01450306 with event index number of 2443674
Geocentric closest approach at 2023/01/22 21:47:15 UTC
J2000 position of star is 03:52:06.9 +42:41:06
Equinox of date position of star is 03:53:38.4 +42:45:00
Stellar brightness G=15.8,
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 2% illuminated.
TNO apparent brightness V=22.3
TNO is 30.7 AU from the Sun
and 30.2 AU from the Earth.
The TNO is moving 14.4
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 94 seconds.
The 1-sigma cross-track error in the shadow position is
1338 km.
The TNO has an absolute magnitude Hv=7.3
Diameter=211.8 km assuming a 5% albedo -- 14.8 sec chord
Diameter=86.5 km assuming a 30% albedo -- 6.0 sec chord
Dynamical classification is 1:1
Star training set for 530930, (2023/01/22 21:40UT) Object RA Dec mag sep mel Aldebaran 04:37:14.8 +16:33:14 0.8 27.80 112 Algol 03:09:40.7 +41:02:34 2.1 8.36 100 41Nu Per 03:46:46.2 +42:38:58 3.8 1.28 107 PPM 046580 03:53:06.5 +42:41:09 8.1 0.13 108 530930 03:53:42.0 +42:45:09 15.8 109 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 530930, (2023/01/22 21:40UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 27.80 112 Algol 03:08:10.1 +40:57:20 2.1 8.36 100 41Nu Per 03:45:11.6 +42:34:43 3.8 1.28 107 PPM 046580 03:51:31.5 +42:37:04 8.1 0.13 108 530930 03:52:06.9 +42:41:06 15.8 108 Positions are for J2000
Event circumstances last updated at 2022/03/12 01:51:58 UT
Marc W. Buie, Southwest Research Institute