Event between (278361) 07JJ43 and star GA0640:11137392 with event index number of 2180966
Geocentric closest approach at 2022/07/05 17:19:24 UTC
J2000 position of star is 17:07:17.0 -25:52:43
Equinox of date position of star is 17:08:39.3 -25:54:23
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 81 degrees from the moon.
Moon is 36% illuminated.
TNO apparent brightness V=20.6
TNO is 40.7 AU from the Sun
and 39.8 AU from the Earth.
The TNO is moving 21.7
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 337 seconds.
The 1-sigma cross-track error in the shadow position is
3253 km.
The TNO has an absolute magnitude Hv=4.5
Diameter=758.6 km assuming a 5% albedo -- 35.0 sec chord
Diameter=309.7 km assuming a 30% albedo -- 14.3 sec chord
Dynamical classification is SCATNEAR
Star training set for 278361, (2022/07/05 17:19UT) Object RA Dec mag sep mel Antares 16:30:47.5 -26:28:48 0.9 8.52 73 23Tau Sco 16:37:17.3 -28:15:39 2.8 7.37 75 PPM 266416 17:08:17.1 -26:32:29 6.3 0.64 81 PPM 266383 17:06:45.8 -25:30:25 8.5 0.59 81 PPM 266390 17:07:01.8 -25:50:44 8.7 0.37 81 278361 17:08:40.5 -25:54:25 16.0 81 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 278361, (2022/07/05 17:19UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 8.52 73 23Tau Sco 16:35:52.9 -28:12:58 2.8 7.37 75 PPM 266416 17:06:53.2 -26:30:47 6.3 0.64 81 PPM 266383 17:05:22.6 -25:28:39 8.5 0.59 81 PPM 266390 17:05:38.5 -25:48:59 8.7 0.37 81 278361 17:07:17.0 -25:52:43 16.0 81 Positions are for J2000
Event circumstances last updated at 2022/03/15 01:06:02 UT
Marc W. Buie, Southwest Research Institute