Event between (91205) 98US43 and star GA1040:01196336 with event index number of 1117923
Geocentric closest approach at 2021/12/02 15:11:54 UTC
J2000 position of star is 05:50:23.0 +15:54:16
Equinox of date position of star is 05:51:37.8 +15:54:33
Stellar brightness G=11.6,
use SENSEUP=8 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 139 degrees from the moon.
Moon is 4% illuminated.
TNO apparent brightness V=23.8
TNO is 38.0 AU from the Sun
and 37.0 AU from the Earth.
The TNO is moving 24.2
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 794 seconds.
The 1-sigma cross-track error in the shadow position is
5378 km.
The TNO has an absolute magnitude Hv=8.0
Diameter=151.4 km assuming a 5% albedo -- 6.3 sec chord
Diameter=61.8 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is 3:2E
Star training set for 91205, (2021/12/02 15:12UT) Object RA Dec mag sep mel Betelgeuse 05:56:21.6 +07:24:34 0.4 8.58 136 Alhena 06:38:58.7 +16:22:43 1.9 11.37 128 131 Tau 05:48:28.1 +14:29:41 5.7 1.61 139 PPM 121449 05:51:18.1 +16:01:05 8.3 0.14 139 91205 05:51:38.7 +15:54:33 11.6 139 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 91205, (2021/12/02 15:12UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 8.58 136 Alhena 06:37:42.8 +16:23:57 1.9 11.37 128 131 Tau 05:47:13.1 +14:29:18 5.7 1.61 139 PPM 121449 05:50:02.3 +16:00:47 8.3 0.14 139 91205 05:50:23.0 +15:54:16 11.6 139 Positions are for J2000
Event circumstances last updated at 2021/08/30 01:17:35 UT
Marc W. Buie, Southwest Research Institute