Event between 14WF509 and star GA1040:00498188 with event index number of 2571367
Geocentric closest approach at 2021/12/19 21:04:21 UTC
J2000 position of star is 04:27:07.5 +14:48:48
Equinox of date position of star is 04:28:21.3 +14:51:38
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 30 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=22.3
TNO is 43.3 AU from the Sun
and 42.4 AU from the Earth.
The TNO is moving 23.7
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 120 seconds.
The 1-sigma cross-track error in the shadow position is
1662 km.
The TNO has an absolute magnitude Hv=5.9
Diameter=389.1 km assuming a 5% albedo -- 16.4 sec chord
Diameter=158.8 km assuming a 30% albedo -- 6.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 14WF509, (2021/12/19 21:06UT) Object RA Dec mag sep mel Aldebaran 04:37:11.0 +16:33:06 0.8 2.71 27 Bellatrix 05:26:18.6 +06:22:04 1.6 16.56 24 73Pi Tau 04:27:51.1 +14:45:42 5.8 0.16 30 76 Tau 04:29:38.3 +14:47:17 6.3 0.31 30 73Pi Tau 04:27:51.1 +14:45:42 5.8 0.16 30 14WF509 04:28:22.2 +14:51:41 16.6 30 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 14WF509, (2021/12/19 21:06UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 2.71 27 Bellatrix 05:25:07.8 +06:20:58 1.6 16.56 24 73Pi Tau 04:26:36.5 +14:42:49 5.8 0.16 30 76 Tau 04:28:23.6 +14:44:27 6.3 0.31 30 73Pi Tau 04:26:36.5 +14:42:49 5.8 0.16 30 14WF509 04:27:07.5 +14:48:48 16.6 30 Positions are for J2000
Event circumstances last updated at 2021/09/12 01:31:22 UT
Marc W. Buie, Southwest Research Institute