Event between 07JF45 and star GA0780:06415894 with event index number of 1158569
Geocentric closest approach at 2021/05/09 02:51:31 UTC
J2000 position of star is 17:25:16.2 -11:58:53
Equinox of date position of star is 17:26:27.6 -11:59:56
Stellar brightness G=14.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 119 degrees from the moon.
Moon is 6% illuminated.
TNO apparent brightness V=21.9
TNO is 39.8 AU from the Sun
and 38.9 AU from the Earth.
The TNO is moving 20.1
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 129 seconds.
The 1-sigma cross-track error in the shadow position is
1416 km.
The TNO has an absolute magnitude Hv=5.9
Diameter=394.5 km assuming a 5% albedo -- 19.6 sec chord
Diameter=161.0 km assuming a 30% albedo -- 8.0 sec chord
Dynamical classification is 3:2E
Star training set for 07JF45, (2021/05/09 02:52UT) Object RA Dec mag sep mel Antares 16:30:43.2 -26:28:39 0.9 19.53 129 35Eta Oph 17:11:36.3 -15:44:59 2.6 5.20 122 53Nu Ser 17:22:01.8 -12:52:01 4.0 1.39 120 PPM 233017 17:25:14.3 -11:43:12 8.1 0.41 119 PPM 233052 17:26:57.1 -11:59:39 9.1 0.12 118 07JF45 17:26:27.8 -11:59:57 14.7 118 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 07JF45, (2021/05/09 02:52UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 19.53 129 35Eta Oph 17:10:22.7 -15:43:29 2.6 5.20 122 53Nu Ser 17:20:49.7 -12:50:49 4.0 1.39 120 PPM 233017 17:24:02.8 -11:42:06 8.1 0.41 119 PPM 233052 17:25:45.4 -11:58:36 9.1 0.12 118 07JF45 17:25:16.2 -11:58:53 14.7 119 Positions are for J2000
Event circumstances last updated at 2021/04/19 23:03:16 UT
Marc W. Buie, Southwest Research Institute