Event between (530930) 11WG157 and star GA1320:01569622 with event index number of 2443785
Geocentric closest approach at 2024/02/03 00:15:38 UTC
J2000 position of star is 04:02:43.1 +43:13:55
Equinox of date position of star is 04:04:15.9 +43:17:32
Stellar brightness G=17.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 150 degrees from the moon.
Moon is 50% illuminated.
TNO apparent brightness V=22.3
TNO is 30.6 AU from the Sun
and 30.3 AU from the Earth.
The TNO is moving 12.2
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 103 seconds.
The 1-sigma cross-track error in the shadow position is
1740 km.
The TNO has an absolute magnitude Hv=7.3
Diameter=211.8 km assuming a 5% albedo -- 17.4 sec chord
Diameter=86.5 km assuming a 30% albedo -- 7.1 sec chord
Dynamical classification is 1:1
Star training set for 530930, (2024/02/03 00:07UT) Object RA Dec mag sep mel Aldebaran 04:37:18.3 +16:33:21 0.8 27.64 153 Mirphak 03:26:03.3 +49:56:42 1.8 9.34 147 PPM 046552 03:50:48.4 +44:02:08 6.1 2.57 151 PPM 046765 04:05:54.9 +43:06:11 8.5 0.34 150 PPM 046760 04:05:38.2 +43:26:28 9.0 0.27 150 PPM 046723 04:03:43.1 +43:09:22 10.3 0.19 150 530930 04:04:23.7 +43:17:50 17.0 150 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, (2024/02/03 00:07UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 27.64 153 Mirphak 03:24:19.4 +49:51:40 1.8 9.34 147 PPM 046552 03:49:08.1 +43:57:49 6.1 2.57 151 PPM 046765 04:04:14.4 +43:02:18 8.5 0.34 150 PPM 046760 04:03:57.4 +43:22:35 9.0 0.27 150 PPM 046723 04:02:02.7 +43:05:26 10.3 0.19 150 530930 04:02:43.1 +43:13:55 17.0 150 Positions are for J2000
Event circumstances last updated at 2022/03/25 00:31:23 UT
Marc W. Buie, Southwest Research Institute