Event between (8405) Asbolus and star GA1300:03058054 with event index number of 1242376
Geocentric closest approach at 2023/01/16 22:53:07 UTC
J2000 position of star is 05:43:26.8 +41:28:28
Equinox of date position of star is 05:45:04.8 +41:29:00
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 139 degrees from the moon.
Moon is 31% illuminated.
Apparent brightness V=23.2
Object is 24.5 AU from the Sun
and 23.7 AU from the Earth.
Apparent velocity is 22.7
km/sec on the sky relative to the star, or,
4.8 arcsec/hr.
The 1-sigma error in the time of the event is 113 seconds.
The 1-sigma cross-track error in the shadow position is
1128 km.
The object has an absolute magnitude Hv=9.2
Diameter=91.2 km assuming a 5% albedo -- 3.8 sec chord
Diameter=37.2 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
Star training set for 8405, (2023/01/16 22:53UT) Object RA Dec mag sep mel Pollux 07:46:43.5 +27:58:07 1.1 28.20 116 34Bet Aur 06:01:13.2 +44:56:50 1.9 4.54 135 PPM 048445 05:48:53.8 +42:31:59 6.3 1.27 138 PPM 048383 05:44:52.2 +41:42:17 7.3 0.22 139 PPM 048390 05:45:09.4 +41:28:03 10.2 0.02 139 8405 05:45:04.8 +41:29:00 16.7 139 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 8405, (2023/01/16 22:53UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 28.20 116 34Bet Aur 05:59:31.6 +44:56:51 1.9 4.54 135 PPM 048445 05:47:14.7 +42:31:34 6.3 1.27 138 PPM 048383 05:43:13.9 +41:41:45 7.3 0.22 139 PPM 048390 05:43:31.4 +41:27:32 10.2 0.02 139 8405 05:43:26.8 +41:28:28 16.7 139 Positions are for J2000
Event circumstances last updated at 2023/01/09 03:27:06 UT
Marc W. Buie, Southwest Research Institute