Event between 00JF81 and star GA0680:07192698 with event index number of 1062634
Geocentric closest approach at 2021/05/09 17:51:10 UTC
J2000 position of star is 16:33:35.9 -20:16:10
Equinox of date position of star is 16:34:50.2 -20:18:43
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 137 degrees from the moon.
Moon is 4% illuminated.
TNO apparent brightness V=23.6
TNO is 43.4 AU from the Sun
and 42.4 AU from the Earth.
The TNO is moving 22.8
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 1261 seconds.
The 1-sigma cross-track error in the shadow position is
4877 km.
The TNO has an absolute magnitude Hv=7.2
Diameter=221.8 km assuming a 5% albedo -- 9.7 sec chord
Diameter=90.6 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is CLASSICAL
Star training set for 00JF81, (2021/05/09 17:51UT) Object RA Dec mag sep mel Antares 16:30:43.2 -26:28:39 0.9 6.24 137 8Bet1Sco 16:06:40.9 -19:51:44 2.6 6.63 144 PPM 232040 16:43:09.2 -19:57:49 5.8 1.98 135 PPM 265647 16:33:41.9 -20:47:47 8.3 0.55 137 PPM 265660 16:34:39.1 -20:17:24 9.8 0.05 137 00JF81 16:34:51.4 -20:18:46 16.6 137 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 00JF81, (2021/05/09 17:51UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 6.24 137 8Bet1Sco 16:05:26.2 -19:48:20 2.6 6.63 144 PPM 232040 16:41:53.8 -19:55:27 5.8 1.98 135 PPM 265647 16:32:26.2 -20:45:08 8.3 0.55 137 PPM 265660 16:33:23.6 -20:14:47 9.8 0.05 137 00JF81 16:33:35.9 -20:16:10 16.6 137 Positions are for J2000
Event circumstances last updated at 2021/01/02 19:41:26 UT
Marc W. Buie, Southwest Research Institute