Event between (20000) Varuna and star GA1160:03061192 with event index number of 1106620
Geocentric closest approach at 2022/05/22 19:38:16 UTC
J2000 position of star is 08:35:02.0 +27:09:33
Equinox of date position of star is 08:36:22.7 +27:04:51
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 152 degrees from the moon.
Moon is 50% illuminated.
TNO apparent brightness V=20.4
TNO is 44.1 AU from the Sun
and 44.5 AU from the Earth.
The TNO is moving 17.6
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 107 seconds.
The 1-sigma cross-track error in the shadow position is
1621 km.
The TNO has an absolute magnitude Hv=3.8
Diameter=1052.0 km assuming a 5% albedo -- 59.9 sec chord
Diameter=429.5 km assuming a 30% albedo -- 24.4 sec chord
Dynamical classification is SCATEXTD
Star training set for 20000, (2022/05/22 19:38UT) Object RA Dec mag sep mel Pollux 07:46:41.0 +27:58:13 1.1 11.05 141 23Phi2Cnc 08:28:08.0 +26:51:36 6.4 1.85 150 PPM 098858 08:38:02.9 +25:51:30 8.3 1.28 153 PPM 098817 08:35:32.6 +27:20:06 9.4 0.31 152 PPM 098838 08:36:28.6 +26:51:55 10.8 0.22 152 20000 08:36:22.7 +27:04:51 16.9 152 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 20000, (2022/05/22 19:38UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 11.05 141 23Phi2Cnc 08:26:47.0 +26:56:06 6.4 1.85 150 PPM 098858 08:36:42.8 +25:56:14 8.3 1.28 153 PPM 098817 08:34:11.7 +27:24:46 9.4 0.31 152 PPM 098838 08:35:07.9 +26:56:37 10.8 0.22 152 20000 08:35:02.0 +27:09:33 16.9 152 Positions are for J2000
Event circumstances last updated at 2022/05/14 23:45:36 UT
Marc W. Buie, Southwest Research Institute