Event between (499522) 10PL66 and star GA0920:00033201 with event index number of 2653729
Geocentric closest approach at 2022/01/24 05:17:28 UTC
J2000 position of star is 00:21:33.6 +02:20:02
Equinox of date position of star is 00:22:41.4 +02:27:21
Stellar brightness G=14.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 168 degrees from the moon.
Moon is 65% illuminated.
TNO apparent brightness V=21.0
TNO is 18.9 AU from the Sun
and 19.3 AU from the Earth.
The TNO is moving 20.2
km/sec on the sky relative to the star, or,
5.2 arcsec/hr.
The 1-sigma error in the time of the event is 38 seconds.
The 1-sigma cross-track error in the shadow position is
777 km.
The TNO has an absolute magnitude Hv=7.9
Diameter=156.3 km assuming a 5% albedo -- 7.7 sec chord
Diameter=63.8 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is CENTAURR
Star training set for 499522, (2022/01/24 05:18UT) Object RA Dec mag sep mel Fomalhaut 22:58:51.9 -29:30:17 1.2 37.73 134 Algenib 00:14:22.5 +15:18:22 2.8 13.01 162 44 Psc 00:26:32.2 +02:03:42 5.8 1.04 169 PPM 143441 00:24:46.5 +02:51:54 7.9 0.66 169 PPM 143426 00:23:48.7 +01:56:44 9.0 0.58 168 PPM 143424 00:23:40.8 +02:05:00 11.2 0.45 168 499522 00:22:41.5 +02:27:22 14.9 168 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 499522, (2022/01/24 05:18UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 37.73 134 Algenib 00:13:14.2 +15:11:01 2.8 13.01 162 44 Psc 00:25:24.2 +01:56:22 5.8 1.04 169 PPM 143441 00:23:38.5 +02:44:35 7.9 0.66 169 PPM 143426 00:22:40.7 +01:49:24 9.0 0.58 168 PPM 143424 00:22:32.8 +01:57:40 11.2 0.45 168 499522 00:21:33.6 +02:20:02 14.9 168 Positions are for J2000
Event circumstances last updated at 2022/01/03 00:28:23 UT
Marc W. Buie, Southwest Research Institute