Event between (470309) 07JK43 and star GA0980:05668390 with event index number of 2228372
Geocentric closest approach at 2022/08/19 15:23:47 UTC
J2000 position of star is 18:03:08.1 +09:40:01
Equinox of date position of star is 18:04:11.4 +09:40:09
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 136 degrees from the moon.
Moon is 46% illuminated.
TNO apparent brightness V=21.5
TNO is 25.4 AU from the Sun
and 24.9 AU from the Earth.
The TNO is moving 14.2
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 69 seconds.
The 1-sigma cross-track error in the shadow position is
963 km.
The TNO has an absolute magnitude Hv=7.3
Diameter=209.9 km assuming a 5% albedo -- 14.8 sec chord
Diameter=85.7 km assuming a 30% albedo -- 6.0 sec chord
Dynamical classification is CENTAURR
Star training set for 470309, (2022/08/19 15:24UT) Object RA Dec mag sep mel Vega 18:37:42.3 +38:48:21 0.0 30.09 109 60Bet Oph 17:44:35.5 +04:33:34 2.8 7.06 143 71 Oph 18:08:23.4 +08:44:19 5.6 1.39 136 PPM 134155 18:03:20.1 +10:02:34 8.5 0.43 136 PPM 165073 18:04:17.1 +09:46:07 10.4 0.10 136 470309 18:04:12.6 +09:40:09 15.6 136 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 470309, (2022/08/19 15:24UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 30.09 109 60Bet Oph 17:43:28.3 +04:34:06 2.8 7.06 143 71 Oph 18:07:18.4 +08:44:03 5.6 1.39 136 PPM 134155 18:02:15.9 +10:02:29 8.5 0.43 136 PPM 165073 18:03:12.7 +09:46:00 10.4 0.10 136 470309 18:03:08.1 +09:40:01 15.6 136 Positions are for J2000
Event circumstances last updated at 2022/03/16 00:57:15 UT
Marc W. Buie, Southwest Research Institute