Event between (15810) Arawn and star GA0700:33679814 with event index number of 1130842
Geocentric closest approach at 2022/06/26 21:52:54 UTC
J2000 position of star is 19:47:35.3 -19:09:04
Equinox of date position of star is 19:48:51.2 -19:05:45
Stellar brightness G=15.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 136 degrees from the moon.
Moon is 4% illuminated.
TNO apparent brightness V=23.3
TNO is 36.0 AU from the Sun
and 35.0 AU from the Earth.
The TNO is moving 22.3
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 276 seconds.
The 1-sigma cross-track error in the shadow position is
2609 km.
The TNO has an absolute magnitude Hv=7.7
Diameter=173.8 km assuming a 5% albedo -- 7.8 sec chord
Diameter=70.9 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is 3:2E
Star training set for 15810, (2022/06/26 21:55UT) Object RA Dec mag sep mel Fomalhaut 22:58:53.3 -29:30:09 1.2 44.21 98 Nunki 18:56:39.5 -26:16:00 2.0 14.01 149 57 Sgr 19:53:30.3 -18:59:10 5.8 1.09 135 PPM 236488 19:48:36.2 -18:41:25 7.8 0.41 136 PPM 236502 19:49:04.8 -19:09:18 8.6 0.07 136 15810 19:48:53.7 -19:05:39 15.1 135 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 15810, (2022/06/26 21:55UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 44.21 98 Nunki 18:55:15.9 -26:17:49 2.0 14.01 149 57 Sgr 19:52:12.0 -19:02:43 5.8 1.09 135 PPM 236488 19:47:18.0 -18:44:50 7.8 0.41 136 PPM 236502 19:47:46.4 -19:12:43 8.6 0.07 136 15810 19:47:35.3 -19:09:04 15.1 136 Positions are for J2000
Event circumstances last updated at 2021/10/07 00:35:22 UT
Marc W. Buie, Southwest Research Institute