Event between 04VU131 and star GA1080:00451687 with event index number of 2654818
Geocentric closest approach at 2022/03/09 18:09:35 UTC
J2000 position of star is 03:54:59.6 +19:53:43
Equinox of date position of star is 03:56:16.1 +19:57:30
Stellar brightness G=15.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 11 degrees from the moon.
Moon is 44% illuminated.
TNO apparent brightness V=23.8
TNO is 41.7 AU from the Sun
and 42.0 AU from the Earth.
The TNO is moving 13.7
km/sec on the sky relative to the star, or,
1.6 arcsec/hr.
The 1-sigma error in the time of the event is 430 seconds.
The 1-sigma cross-track error in the shadow position is
2322 km.
The TNO has an absolute magnitude Hv=7.4
Diameter=203.2 km assuming a 5% albedo -- 14.9 sec chord
Diameter=83.0 km assuming a 30% albedo -- 6.1 sec chord
Dynamical classification is CLASSICAL
Star training set for 04VU131, (2022/03/09 18:10UT) Object RA Dec mag sep mel Aldebaran 04:37:11.8 +16:33:08 0.8 10.29 7 44Zet Per 03:55:31.9 +31:56:52 2.8 11.99 13 PPM 119539 04:02:05.7 +18:15:18 6.5 2.19 11 PPM 119423 03:53:35.5 +18:58:57 8.5 1.16 12 PPM 119477 03:57:47.1 +19:47:25 9.5 0.39 11 04VU131 03:56:17.1 +19:57:33 15.5 11 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 04VU131, (2022/03/09 18:10UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 10.29 7 44Zet Per 03:54:07.9 +31:53:01 2.8 11.99 13 PPM 119539 04:00:49.0 +18:11:38 6.5 2.19 11 PPM 119423 03:52:18.6 +18:55:03 8.5 1.16 12 PPM 119477 03:56:29.7 +19:43:38 9.5 0.39 11 04VU131 03:54:59.6 +19:53:43 15.5 11 Positions are for J2000
Event circumstances last updated at 2021/12/03 01:45:53 UT
Marc W. Buie, Southwest Research Institute