Event between (523719) 14LM28 and star GA1240:04120549 with event index number of 1032810
Geocentric closest approach at 2021/01/23 22:17:55 UTC
J2000 position of star is 17:35:06.5 +35:34:24
Equinox of date position of star is 17:35:51.2 +35:33:39
Stellar brightness G=16.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 121 degrees from the moon.
Moon is 77% illuminated.
TNO apparent brightness V=22.6
TNO is 17.4 AU from the Sun
and 17.8 AU from the Earth.
The TNO is moving 36.6
km/sec on the sky relative to the star, or,
10.2 arcsec/hr.
The 1-sigma error in the time of the event is 43 seconds.
The 1-sigma cross-track error in the shadow position is
1695 km.
The TNO has an absolute magnitude Hv=9.9
Diameter=63.1 km assuming a 5% albedo -- 1.7 sec chord
Diameter=25.8 km assuming a 30% albedo -- 0.7 sec chord
Dynamical classification is CENTAURR
Star training set for 523719, (2021/01/23 22:18UT) Object RA Dec mag sep mel Vega 18:37:39.1 +38:48:16 0.0 12.71 113 Etamin 17:57:05.8 +51:29:14 2.2 16.37 105 PPM 080588 17:48:37.6 +34:16:18 6.4 2.92 122 PPM 080404 17:38:05.5 +35:47:16 7.7 0.51 121 PPM 080357 17:35:27.2 +35:52:15 9.0 0.32 121 PPM 080361 17:35:44.3 +35:38:15 10.4 0.08 121 523719 17:35:51.3 +35:33:39 16.2 121 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 523719, (2021/01/23 22:18UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 12.71 113 Etamin 17:56:36.3 +51:29:20 2.2 16.37 105 PPM 080588 17:47:52.0 +34:16:40 6.4 2.92 122 PPM 080404 17:37:20.9 +35:47:57 7.7 0.51 121 PPM 080357 17:34:42.6 +35:53:01 9.0 0.32 121 PPM 080361 17:34:59.6 +35:39:00 10.4 0.08 121 523719 17:35:06.5 +35:34:24 16.2 121 Positions are for J2000
Event circumstances last updated at 2021/01/18 20:51:57 UT
Marc W. Buie, Southwest Research Institute