Event between (119315) 01SQ73 and star GA1300:03813275 with event index number of 1054978
Geocentric closest approach at 2021/02/28 13:20:42 UTC
J2000 position of star is 07:29:55.9 +40:00:05
Equinox of date position of star is 07:31:22.6 +39:57:23
Stellar brightness G=13.4,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 68 degrees from the moon.
Moon is 98% illuminated.
TNO apparent brightness V=22.8
TNO is 19.9 AU from the Sun
and 19.3 AU from the Earth.
The TNO is moving 14.6
km/sec on the sky relative to the star, or,
3.8 arcsec/hr.
The 1-sigma error in the time of the event is 123 seconds.
The 1-sigma cross-track error in the shadow position is
882 km.
The TNO has an absolute magnitude Hv=9.6
Diameter=72.4 km assuming a 5% albedo -- 4.9 sec chord
Diameter=29.6 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
Star training set for 119315, (2021/02/28 13:21UT) Object RA Dec mag sep mel Pollux 07:46:36.5 +27:58:24 1.1 12.39 63 PPM 072880 07:33:21.5 +38:50:57 6.5 1.17 67 PPM 049877 07:29:38.3 +40:36:42 7.7 0.73 68 PPM 049925 07:32:30.8 +40:18:46 9.5 0.42 68 PPM 049907 07:31:26.5 +40:04:44 10.4 0.12 68 119315 07:31:22.8 +39:57:22 13.4 68 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 119315, (2021/02/28 13:21UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 12.39 63 PPM 072880 07:31:55.5 +38:53:44 6.5 1.17 67 PPM 049877 07:28:10.8 +40:39:23 7.7 0.73 68 PPM 049925 07:31:03.6 +40:21:31 9.5 0.42 68 PPM 049907 07:29:59.5 +40:07:27 10.4 0.12 68 119315 07:29:55.9 +40:00:05 13.4 68 Positions are for J2000
Event circumstances last updated at 2021/02/06 20:39:39 UT
Marc W. Buie, Southwest Research Institute