Event between (15820) 94TB and star GA1220:00894790 with event index number of 1230145
Geocentric closest approach at 2023/03/11 19:33:58 UTC
J2000 position of star is 04:11:21.5 +32:30:08
Equinox of date position of star is 04:12:49.8 +32:33:37
Stellar brightness G=14.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 152 degrees from the moon.
Moon is 83% illuminated.
Apparent brightness V=22.2
Object is 27.1 AU from the Sun
and 27.3 AU from the Earth.
Apparent velocity is 14.6
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 278 seconds.
The 1-sigma cross-track error in the shadow position is
1973 km.
The object has an absolute magnitude Hv=7.6
Diameter=183.7 km assuming a 5% albedo -- 12.5 sec chord
Diameter=75.0 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is 3:2E
Star training set for 15820, (2023/03/11 19:34UT) Object RA Dec mag sep mel Aldebaran 04:37:15.2 +16:33:15 0.8 16.93 150 44Zet Per 03:55:35.7 +31:57:02 2.8 3.70 155 PPM 069097 04:08:25.2 +33:30:25 6.4 1.32 152 PPM 069216 04:14:27.4 +32:35:25 7.8 0.34 151 PPM 069188 04:12:41.9 +32:28:21 10.3 0.09 152 15820 04:12:50.4 +32:33:38 14.9 151 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 15820, (2023/03/11 19:34UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 16.93 150 44Zet Per 03:54:07.9 +31:53:01 2.8 3.70 155 PPM 069097 04:06:55.8 +33:26:46 6.4 1.32 152 PPM 069216 04:12:58.4 +32:31:57 7.8 0.34 151 PPM 069188 04:11:13.0 +32:24:50 10.3 0.09 152 15820 04:11:21.5 +32:30:08 14.9 152 Positions are for J2000
Event circumstances last updated at 2023/01/08 03:31:24 UT
Marc W. Buie, Southwest Research Institute