Event between 17OF69 and star GA0840:19256915 with event index number of 2167542
Geocentric closest approach at 2022/08/19 15:13:36 UTC
J2000 position of star is 20:27:47.2 -04:43:11
Equinox of date position of star is 20:28:58.0 -04:38:41
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 46% illuminated.
TNO apparent brightness V=20.7
TNO is 43.1 AU from the Sun
and 42.2 AU from the Earth.
The TNO is moving 23.7
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 72 seconds.
The 1-sigma cross-track error in the shadow position is
1584 km.
The TNO has an absolute magnitude Hv=4.3
Diameter=843.4 km assuming a 5% albedo -- 35.6 sec chord
Diameter=344.3 km assuming a 30% albedo -- 14.5 sec chord
Dynamical classification is 3:2E
Star training set for 17OF69, (2022/08/19 15:12UT) Object RA Dec mag sep mel Fomalhaut 22:58:53.8 -29:30:06 1.2 43.26 88 Tarazed 19:47:20.1 +10:40:12 2.7 18.49 115 69 Aql 20:30:49.9 -02:48:32 4.9 1.89 111 PPM 204097 20:29:48.6 -04:21:05 8.1 0.36 112 PPM 204082 20:29:16.3 -04:40:01 9.3 0.08 112 17OF69 20:28:58.8 -04:38:37 15.1 112 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 17OF69, (2022/08/19 15:12UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 43.26 88 Tarazed 19:46:15.6 +10:36:48 2.7 18.49 115 69 Aql 20:29:39.1 -02:53:08 4.9 1.89 111 PPM 204097 20:28:37.1 -04:25:39 8.1 0.36 112 PPM 204082 20:28:04.7 -04:44:35 9.3 0.08 112 17OF69 20:27:47.2 -04:43:11 15.1 112 Positions are for J2000
Event circumstances last updated at 2022/05/13 23:09:58 UT
Marc W. Buie, Southwest Research Institute