Event between 14YY49 and star GA0900:03159646 with event index number of 2656691
Geocentric closest approach at 2021/12/01 05:10:34 UTC
J2000 position of star is 07:58:43.5 +00:34:29
Equinox of date position of star is 07:59:50.4 +00:30:53
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 86 degrees from the moon.
Moon is 14% illuminated.
TNO apparent brightness V=23.6
TNO is 21.1 AU from the Sun
and 20.5 AU from the Earth.
The TNO is moving 14.3
km/sec on the sky relative to the star, or,
3.5 arcsec/hr.
The 1-sigma error in the time of the event is 135 seconds.
The 1-sigma cross-track error in the shadow position is
1076 km.
The TNO has an absolute magnitude Hv=10.2
Diameter=55.2 km assuming a 5% albedo -- 3.9 sec chord
Diameter=22.5 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
Star training set for 14YY49, (2021/12/01 05:11UT) Object RA Dec mag sep mel Sirius 06:46:06.8 -16:44:51 -1.5 25.07 101 Alphard 09:28:39.9 -08:45:17 2.0 23.98 63 PPM 153760 08:03:24.3 +02:16:23 5.8 1.97 85 PPM 153636 07:58:52.3 +00:14:13 8.5 0.37 86 PPM 153657 07:59:44.8 +00:46:34 9.9 0.26 86 PPM 153683 08:00:34.0 +00:25:17 10.2 0.20 85 14YY49 07:59:51.1 +00:30:51 16.3 85 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 14YY49, (2021/12/01 05:11UT) Object RA Dec mag sep mel Sirius 06:45:08.0 -16:43:24 -1.5 25.07 101 Alphard 09:27:35.2 -08:39:30 2.0 23.98 63 PPM 153760 08:02:15.9 +02:20:07 5.8 1.97 85 PPM 153636 07:57:44.8 +00:17:50 8.5 0.37 86 PPM 153657 07:58:37.0 +00:50:12 9.9 0.26 86 PPM 153683 07:59:26.4 +00:28:57 10.2 0.20 85 14YY49 07:58:43.5 +00:34:29 16.3 86 Positions are for J2000
Event circumstances last updated at 2021/09/02 02:22:36 UT
Marc W. Buie, Southwest Research Institute