Event between (523700) 14GM54 and star GA1080:13006988 with event index number of 1061186
Geocentric closest approach at 2021/03/16 16:46:35 UTC
J2000 position of star is 19:46:57.4 +19:39:27
Equinox of date position of star is 19:47:53.1 +19:42:38
Stellar brightness G=15.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 92 degrees from the moon.
Moon is 10% illuminated.
TNO apparent brightness V=21.7
TNO is 27.3 AU from the Sun
and 27.7 AU from the Earth.
The TNO is moving 25.8
km/sec on the sky relative to the star, or,
4.6 arcsec/hr.
The 1-sigma error in the time of the event is 72 seconds.
The 1-sigma cross-track error in the shadow position is
1553 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 8.9 sec chord
Diameter=93.5 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 523700, (2021/03/16 16:47UT) Object RA Dec mag sep mel Vega 18:37:39.4 +38:48:16 0.0 24.38 101 Tarazed 19:47:16.1 +10:39:59 2.7 9.05 93 8Zet Sge 19:49:55.1 +19:11:47 5.0 0.70 91 PPM 137021 19:49:40.5 +19:42:55 7.6 0.42 91 PPM 136954 19:47:46.4 +19:47:03 9.2 0.08 92 523700 19:47:53.5 +19:42:39 15.1 91 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 523700, (2021/03/16 16:47UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 24.38 101 Tarazed 19:46:15.6 +10:36:48 2.7 9.05 93 8Zet Sge 19:48:58.7 +19:08:32 5.0 0.70 91 PPM 137021 19:48:44.3 +19:39:40 7.6 0.42 91 PPM 136954 19:46:50.2 +19:43:52 9.2 0.08 92 523700 19:46:57.4 +19:39:27 15.1 92 Positions are for J2000
Event circumstances last updated at 2021/01/19 21:12:55 UT
Marc W. Buie, Southwest Research Institute