Event between (118378) 99HT11 and star GA0700:06077101 with event index number of 1201512
Geocentric closest approach at 2023/04/14 20:27:54 UTC
J2000 position of star is 15:58:22.8 -18:03:30
Equinox of date position of star is 15:59:42.3 -18:07:23
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 73 degrees from the moon.
Moon is 33% illuminated.
Apparent brightness V=23.3
Object is 39.6 AU from the Sun
and 38.8 AU from the Earth.
Apparent velocity is 18.5
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 397 seconds.
The 1-sigma cross-track error in the shadow position is
3602 km.
The object has an absolute magnitude Hv=7.3
Diameter=182.0 km assuming a 5% albedo -- 11.5 sec chord
Diameter=74.3 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is 7:4EEE
Star training set for 118378, (2023/04/14 20:28UT) Object RA Dec mag sep mel Antares 16:30:50.3 -26:28:54 0.9 11.02 64 8Bet1Sco 16:06:47.7 -19:52:02 2.6 2.42 71 47 Lib 15:56:21.4 -19:26:59 5.9 1.55 74 PPM 230954 15:57:10.1 -18:05:45 8.2 0.61 74 PPM 231028 15:59:44.3 -17:49:06 8.6 0.31 73 118378 15:59:43.2 -18:07:25 16.3 73 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 118378, (2023/04/14 20:28UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 11.02 64 8Bet1Sco 16:05:26.2 -19:48:20 2.6 2.42 71 47 Lib 15:55:00.4 -19:22:59 5.9 1.55 74 PPM 230954 15:55:49.8 -18:01:46 8.2 0.61 74 PPM 231028 15:58:24.0 -17:45:11 8.6 0.31 73 118378 15:58:22.8 -18:03:30 16.3 73 Positions are for J2000
Event circumstances last updated at 2023/01/07 03:19:53 UT
Marc W. Buie, Southwest Research Institute