Event between 98HO151 and star GA0940:03891414 with event index number of 2339922
Geocentric closest approach at 2022/05/16 14:08:44 UTC
J2000 position of star is 14:18:46.6 +04:14:24
Equinox of date position of star is 14:19:53.6 +04:08:19
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 35 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=24.5
TNO is 44.0 AU from the Sun
and 43.2 AU from the Earth.
The TNO is moving 22.9
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 644 seconds.
The 1-sigma cross-track error in the shadow position is
5933 km.
The TNO has an absolute magnitude Hv=8.0
Diameter=152.1 km assuming a 5% albedo -- 6.6 sec chord
Diameter=62.1 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is SCATEXTD
Star training set for 98HO151, (2022/05/16 14:09UT) Object RA Dec mag sep mel Arcturus 14:16:41.0 +19:04:02 0.0 14.95 47 27Bet Lib 15:18:12.8 -09:27:51 2.6 19.90 15 PPM 160430 14:13:23.9 +02:18:18 4.7 2.45 35 PPM 160515 14:19:37.5 +03:34:19 7.7 0.57 35 PPM 160524 14:20:09.0 +04:04:39 9.6 0.09 35 98HO151 14:19:54.1 +04:08:16 15.8 35 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 98HO151, (2022/05/16 14:09UT) Object RA Dec mag sep mel Arcturus 14:15:38.0 +19:10:14 0.0 14.95 47 27Bet Lib 15:17:00.3 -09:22:59 2.6 19.90 15 PPM 160430 14:12:15.7 +02:24:33 4.7 2.45 35 PPM 160515 14:18:29.8 +03:40:28 7.7 0.57 35 PPM 160524 14:19:01.4 +04:10:47 9.6 0.09 35 98HO151 14:18:46.6 +04:14:24 15.8 35 Positions are for J2000
Event circumstances last updated at 2022/03/16 00:54:53 UT
Marc W. Buie, Southwest Research Institute