Event between (444030) 04NT33 and star GA1100:16933877 with event index number of 1124382
Geocentric closest approach at 2021/05/23 18:22:50 UTC
J2000 position of star is 22:05:20.4 +21:20:30
Equinox of date position of star is 22:06:19.8 +21:26:40
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 127 degrees from the moon.
Moon is 89% illuminated.
TNO apparent brightness V=20.9
TNO is 39.5 AU from the Sun
and 39.6 AU from the Earth.
The TNO is moving 17.5
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 108 seconds.
The 1-sigma cross-track error in the shadow position is
2791 km.
The TNO has an absolute magnitude Hv=4.8
Diameter=673.0 km assuming a 5% albedo -- 38.5 sec chord
Diameter=274.8 km assuming a 30% albedo -- 15.7 sec chord
Dynamical classification is SCATEXTD
Star training set for 444030, (2021/05/23 18:23UT) Object RA Dec mag sep mel Deneb 20:42:09.7 +45:21:27 1.3 29.48 106 Scheat 23:04:48.9 +28:11:57 2.4 14.87 138 25 Peg 22:08:50.7 +21:48:28 5.6 0.68 127 PPM 114027 22:07:01.7 +20:54:23 8.3 0.56 127 PPM 113998 22:05:52.8 +21:21:40 9.1 0.14 127 444030 22:06:20.9 +21:26:47 15.8 127 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 444030, (2021/05/23 18:23UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 29.48 106 Scheat 23:03:46.8 +28:05:01 2.4 14.87 138 25 Peg 22:07:50.2 +21:42:09 5.6 0.68 127 PPM 114027 22:06:01.0 +20:48:06 8.3 0.56 127 PPM 113998 22:04:52.3 +21:15:23 9.1 0.14 127 444030 22:05:20.4 +21:20:30 15.8 127 Positions are for J2000
Event circumstances last updated at 2020/12/30 19:59:23 UT
Marc W. Buie, Southwest Research Institute