Event between 07LH38 and star GA0860:06912101 with event index number of 2025883
Geocentric closest approach at 2021/07/02 01:59:04 UTC
J2000 position of star is 18:06:42.8 -03:39:45
Equinox of date position of star is 18:07:50.4 -03:39:32
Stellar brightness G=12.8,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 102 degrees from the moon.
Moon is 48% illuminated.
TNO apparent brightness V=23.5
TNO is 37.3 AU from the Sun
and 36.3 AU from the Earth.
The TNO is moving 23.8
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 266 seconds.
The 1-sigma cross-track error in the shadow position is
3627 km.
The TNO has an absolute magnitude Hv=7.8
Diameter=168.3 km assuming a 5% albedo -- 7.1 sec chord
Diameter=68.7 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is SCATNEAR
Star training set for 07LH38, (2021/07/02 01:59UT) Object RA Dec mag sep mel Antares 16:30:43.7 -26:28:40 0.9 32.57 122 60Bet Oph 17:44:32.1 +04:33:36 2.8 10.07 107 57Zet Ser 18:01:37.2 -03:41:24 4.4 1.55 103 PPM 201404 18:08:03.7 -03:13:45 7.3 0.43 102 PPM 201382 18:06:44.8 -03:39:12 10.0 0.27 102 07LH38 18:07:50.8 -03:39:31 12.8 101 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 07LH38, (2021/07/02 01:59UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 32.57 122 60Bet Oph 17:43:28.3 +04:34:06 2.8 10.07 107 57Zet Ser 18:00:29.2 -03:41:26 4.4 1.55 103 PPM 201404 18:06:55.9 -03:13:59 7.3 0.43 102 PPM 201382 18:05:36.9 -03:39:24 10.0 0.27 102 07LH38 18:06:42.8 -03:39:45 12.8 102 Positions are for J2000
Event circumstances last updated at 2021/05/18 00:33:32 UT
Marc W. Buie, Southwest Research Institute