Event between (523700) 14GM54 and star GA1080:11510989 with event index number of 2088158
Geocentric closest approach at 2021/11/19 12:48:50 UTC
J2000 position of star is 19:39:19.0 +18:15:16
Equinox of date position of star is 19:40:17.3 +18:18:21
Stellar brightness G=15.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 112 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=21.7
TNO is 27.5 AU from the Sun
and 27.8 AU from the Earth.
The TNO is moving 27.9
km/sec on the sky relative to the star, or,
5.0 arcsec/hr.
The 1-sigma error in the time of the event is 63 seconds.
The 1-sigma cross-track error in the shadow position is
1460 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 8.2 sec chord
Diameter=93.5 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 523700, (2021/11/19 12:49UT) Object RA Dec mag sep mel Vega 18:37:40.8 +38:48:18 0.0 24.60 109 Tarazed 19:47:18.0 +10:40:05 2.7 7.82 114 5Alp Sge 19:41:04.5 +18:03:56 5.1 0.30 112 PPM 136701 19:40:12.5 +18:44:06 7.2 0.43 112 PPM 136720 19:40:31.7 +18:07:03 9.2 0.20 112 523700 19:40:17.6 +18:18:22 15.1 111 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, (2021/11/19 12:49UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 24.60 109 Tarazed 19:46:15.6 +10:36:48 2.7 7.82 114 5Alp Sge 19:40:05.8 +18:00:50 5.1 0.30 112 PPM 136701 19:39:14.2 +18:41:01 7.2 0.43 112 PPM 136720 19:39:33.0 +18:03:57 9.2 0.20 112 523700 19:39:19.0 +18:15:16 15.1 112 Positions are for J2000
Event circumstances last updated at 2021/10/11 01:42:58 UT
Marc W. Buie, Southwest Research Institute