Event between 13TD188 and star GA0920:00074945 with event index number of 1799543
Geocentric closest approach at 2021/01/23 16:39:42 UTC
J2000 position of star is 00:49:42.8 +03:32:44
Equinox of date position of star is 00:50:47.9 +03:39:36
Stellar brightness G=15.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 52 degrees from the moon.
Moon is 76% illuminated.
TNO apparent brightness V=24.2
TNO is 47.4 AU from the Sun
and 47.7 AU from the Earth.
The TNO is moving 14.8
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 423 seconds.
The 1-sigma cross-track error in the shadow position is
4983 km.
The TNO has an absolute magnitude Hv=7.3
Diameter=204.2 km assuming a 5% albedo -- 13.8 sec chord
Diameter=83.4 km assuming a 30% albedo -- 5.6 sec chord
Dynamical classification is CLASSICAL
Star training set for 13TD188, (2021/01/23 16:40UT) Object RA Dec mag sep mel Fomalhaut 22:58:48.6 -29:30:37 1.2 42.66 90 Algenib 00:14:19.4 +15:18:02 2.8 14.70 57 96 G. Psc 00:49:29.4 +05:23:18 5.8 1.76 51 PPM 143981 00:52:23.5 +03:29:56 7.2 0.43 51 PPM 143932 00:50:31.7 +03:50:18 9.6 0.19 52 PPM 143947 00:50:59.3 +03:46:26 10.2 0.12 52 13TD188 00:50:48.0 +03:39:36 15.0 51 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 13TD188, (2021/01/23 16:40UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 42.66 90 Algenib 00:13:14.2 +15:11:01 2.8 14.70 57 96 G. Psc 00:48:24.0 +05:16:26 5.8 1.76 51 PPM 143981 00:51:18.4 +03:23:04 7.2 0.43 51 PPM 143932 00:49:26.5 +03:43:25 9.6 0.19 52 PPM 143947 00:49:54.1 +03:39:34 10.2 0.12 52 13TD188 00:49:42.8 +03:32:44 15.0 52 Positions are for J2000
Event circumstances last updated at 2021/01/18 20:50:54 UT
Marc W. Buie, Southwest Research Institute