Event between (8405) Asbolus and star GA1300:02920582 with event index number of 338434
Geocentric closest approach at 2020/08/21 16:33:57 UTC
J2000 position of star is 05:34:43.4 +40:11:38
Equinox of date position of star is 05:36:09.4 +40:12:22
Stellar brightness G=15.0,
use SENSEUP=128
Star is 98 degrees from the moon.
Moon is 9% illuminated.
TNO apparent brightness V=23.9
TNO is 23.0 AU from the Sun
and 23.5 AU from the Earth.
The TNO is moving 18.6
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 117 seconds.
The 1-sigma cross-track error in the shadow position is
1204 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=91.2 km assuming a 5% albedo -- 3.2 sec chord
Diameter=37.2 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
Star training set for 8405, (2020/08/21 16:34UT) Object RA Dec mag sep mel Aldebaran 04:37:06.4 +16:32:57 0.8 26.90 115 34Bet Aur 06:01:02.6 +44:56:50 1.9 6.59 92 PPM 048174 05:32:16.3 +41:28:34 6.0 1.47 98 PPM 048282 05:38:19.1 +40:11:37 7.2 0.41 97 PPM 048239 05:36:05.5 +40:26:54 9.7 0.24 98 PPM 048250 05:36:42.8 +40:07:41 10.7 0.13 98 8405 05:36:10.1 +40:12:22 15.0 97 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 8405, (2020/08/21 16:34UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 26.90 115 34Bet Aur 05:59:31.6 +44:56:51 1.9 6.59 92 PPM 048174 05:30:48.6 +41:27:43 6.0 1.47 98 PPM 048282 05:36:52.4 +40:10:57 7.2 0.41 97 PPM 048239 05:34:38.6 +40:26:09 9.7 0.24 98 PPM 048250 05:35:16.2 +40:06:58 10.7 0.13 98 8405 05:34:43.4 +40:11:38 15.0 98 Positions are for J2000
Event circumstances last updated at 2020/06/21 05:59:19 UT
Marc W. Buie, Southwest Research Institute