Event between (307616) 03QW90 and star GA0980:00123941 with event index number of 1214253
Geocentric closest approach at 2022/08/09 22:02:53 UTC
J2000 position of star is 01:25:23.5 +09:50:31
Equinox of date position of star is 01:26:32.7 +09:57:19
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 96 degrees from the moon.
Moon is 93% illuminated.
TNO apparent brightness V=21.6
TNO is 43.1 AU from the Sun
and 42.7 AU from the Earth.
The TNO is moving 7.6
km/sec on the sky relative to the star, or,
0.9 arcsec/hr.
The 1-sigma error in the time of the event is 248 seconds.
The 1-sigma cross-track error in the shadow position is
1701 km.
The TNO has an absolute magnitude Hv=5.1
Diameter=562.4 km assuming a 5% albedo -- 74.3 sec chord
Diameter=229.6 km assuming a 30% albedo -- 30.4 sec chord
Dynamical classification is CLASSICAL
Star training set for 307616, (2022/08/09 22:02UT) Object RA Dec mag sep mel Aldebaran 04:37:13.2 +16:33:11 0.8 46.75 142 6Bet Ari 01:55:53.6 +20:55:03 2.6 13.03 107 PPM 144653 01:30:14.1 +07:24:37 6.4 2.70 96 PPM 117329 01:27:09.9 +10:31:27 7.3 0.58 97 PPM 144594 01:26:38.0 +09:49:36 9.9 0.13 96 307616 01:26:35.0 +09:57:33 15.4 97 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 307616, (2022/08/09 22:02UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 46.75 142 6Bet Ari 01:54:38.5 +20:48:26 2.6 13.03 107 PPM 144653 01:29:03.1 +07:17:38 6.4 2.70 96 PPM 117329 01:25:58.3 +10:24:25 7.3 0.58 97 PPM 144594 01:25:26.5 +09:42:35 9.9 0.13 96 307616 01:25:23.5 +09:50:31 15.4 96 Positions are for J2000
Event circumstances last updated at 2021/11/15 00:47:57 UT
Marc W. Buie, Southwest Research Institute