Event between (523642) 10SS43 and star GA1320:00541245 with event index number of 2382976
Geocentric closest approach at 2027/08/09 12:07:50 UTC
J2000 position of star is 01:47:03.7 +43:51:03
Equinox of date position of star is 01:48:27.4 +43:57:52
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 154 degrees from the moon.
Moon is 53% illuminated.
TNO apparent brightness V=21.6
TNO is 37.7 AU from the Sun
and 37.6 AU from the Earth.
The TNO is moving 16.4
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 170 seconds.
The 1-sigma cross-track error in the shadow position is
3101 km.
The TNO has an absolute magnitude Hv=5.7
Diameter=424.6 km assuming a 5% albedo -- 26.2 sec chord
Diameter=173.4 km assuming a 30% albedo -- 10.7 sec chord
Dynamical classification is SCATEXTD
Star training set for 523642, (2027/08/09 12:08UT) Object RA Dec mag sep mel Aldebaran 04:37:30.5 +16:33:46 0.8 44.85 158 57Gam1And 02:05:36.4 +42:27:39 2.3 3.43 157 PPM 044298 01:42:19.7 +43:26:11 5.8 1.28 153 PPM 044402 01:48:00.0 +43:50:34 7.2 0.20 154 PPM 044436 01:49:40.5 +44:01:39 10.7 0.17 154 523642 01:48:44.7 +43:59:16 16.9 154 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 523642, (2027/08/09 12:08UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 44.85 158 57Gam1And 02:03:54.1 +42:19:46 2.3 3.43 157 PPM 044298 01:40:39.8 +43:17:51 5.8 1.28 153 PPM 044402 01:46:19.2 +43:42:20 7.2 0.20 154 PPM 044436 01:47:59.4 +43:53:27 10.7 0.17 154 523642 01:47:03.7 +43:51:03 16.9 154 Positions are for J2000
Event circumstances last updated at 2022/11/22 03:28:34 UT
Marc W. Buie, Southwest Research Institute