Event between (456826) 07TH422 and star GA1080:01576914 with event index number of 2287651
Geocentric closest approach at 2021/11/07 16:08:59 UTC
J2000 position of star is 06:00:44.4 +19:16:31
Equinox of date position of star is 06:02:01.1 +19:16:28
Stellar brightness G=13.8,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 172 degrees from the moon.
Moon is 11% illuminated.
TNO apparent brightness V=22.4
TNO is 29.9 AU from the Sun
and 29.2 AU from the Earth.
The TNO is moving 16.4
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 328 seconds.
The 1-sigma cross-track error in the shadow position is
3381 km.
The TNO has an absolute magnitude Hv=7.6
Diameter=184.5 km assuming a 5% albedo -- 11.3 sec chord
Diameter=75.3 km assuming a 30% albedo -- 4.6 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 456826, (2021/11/07 16:09UT) Object RA Dec mag sep mel Betelgeuse 05:56:21.3 +07:24:34 0.4 11.94 161 Alhena 06:38:58.4 +16:22:44 1.9 9.26 163 64 Ori 06:04:44.9 +19:41:19 4.9 0.76 171 PPM 121766 06:02:38.1 +18:57:36 7.2 0.35 171 PPM 121791 06:03:28.4 +19:16:18 9.2 0.34 171 456826 06:02:01.8 +19:16:28 13.8 171 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 456826, (2021/11/07 16:09UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 11.94 161 Alhena 06:37:42.8 +16:23:57 1.9 9.26 163 64 Ori 06:03:27.3 +19:41:26 4.9 0.76 171 PPM 121766 06:01:20.8 +18:57:40 7.2 0.35 171 PPM 121791 06:02:11.0 +19:16:23 9.2 0.34 171 456826 06:00:44.4 +19:16:31 13.8 172 Positions are for J2000
Event circumstances last updated at 2021/08/29 01:43:48 UT
Marc W. Buie, Southwest Research Institute