Event between 11UA413 and star GA1120:00362051 with event index number of 2126809
Geocentric closest approach at 2022/02/28 12:54:25 UTC
J2000 position of star is 03:07:09.3 +22:23:30
Equinox of date position of star is 03:08:25.5 +22:28:30
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 100 degrees from the moon.
Moon is 6% illuminated.
TNO apparent brightness V=23.9
TNO is 32.4 AU from the Sun
and 32.7 AU from the Earth.
The TNO is moving 15.2
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 259 seconds.
The 1-sigma cross-track error in the shadow position is
1963 km.
The TNO has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 7.6 sec chord
Diameter=46.9 km assuming a 30% albedo -- 3.1 sec chord
Dynamical classification is 4:3E
Star training set for 11UA413, (2022/02/28 12:54UT) Object RA Dec mag sep mel Aldebaran 04:37:11.7 +16:33:07 0.8 21.71 118 Hamal 02:08:25.7 +23:33:58 2.0 13.84 88 48Eps Ari 03:00:29.0 +21:25:40 5.6 2.12 98 PPM 092254 03:11:23.5 +21:49:47 7.9 0.94 100 PPM 092222 03:08:55.9 +22:39:22 9.7 0.21 100 PPM 092216 03:08:13.3 +22:26:51 11.0 0.06 100 11UA413 03:08:26.3 +22:28:33 16.7 100 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 11UA413, (2022/02/28 12:54UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 21.71 118 Hamal 02:07:10.7 +23:27:41 2.0 13.84 88 48Eps Ari 02:59:12.6 +21:20:25 5.6 2.12 98 PPM 092254 03:10:06.6 +21:44:48 7.9 0.94 100 PPM 092222 03:07:38.7 +22:34:20 9.7 0.21 100 PPM 092216 03:06:56.2 +22:21:47 11.0 0.06 100 11UA413 03:07:09.3 +22:23:30 16.7 100 Positions are for J2000
Event circumstances last updated at 2021/12/04 02:04:16 UT
Marc W. Buie, Southwest Research Institute