Event between (15820) 94TB and star GA1220:01622854 with event index number of 1546005
Geocentric closest approach at 2026/08/27 15:08:06 UTC
J2000 position of star is 05:18:18.2 +33:22:45
Equinox of date position of star is 05:19:53.4 +33:24:11
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 113 degrees from the moon.
Moon is 100% illuminated.
Apparent brightness V=22.2
Object is 27.5 AU from the Sun
and 27.7 AU from the Earth.
Apparent velocity is 15.3
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 396 seconds.
The 1-sigma cross-track error in the shadow position is
1775 km.
The object has an absolute magnitude Hv=7.6
Diameter=183.7 km assuming a 5% albedo -- 11.9 sec chord
Diameter=75.0 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is 3:2E
Star training set for 15820, (2026/08/27 15:09UT) Object RA Dec mag sep mel Aldebaran 04:37:27.2 +16:33:39 0.8 19.38 102 3Iot Aur 04:58:44.0 +33:12:21 2.7 4.46 108 17 Aur 05:20:04.4 +33:47:37 6.1 0.39 113 PPM 070167 05:20:16.0 +33:11:26 8.1 0.22 113 PPM 070156 05:19:59.7 +33:28:42 9.7 0.07 113 15820 05:20:03.3 +33:24:20 16.9 113 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, (2026/08/27 15:09UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 19.38 102 3Iot Aur 04:56:59.6 +33:09:58 2.7 4.46 108 17 Aur 05:18:19.0 +33:46:02 6.1 0.39 113 PPM 070167 05:18:31.1 +33:09:52 8.1 0.22 113 PPM 070156 05:18:14.6 +33:27:07 9.7 0.07 113 15820 05:18:18.2 +33:22:45 16.9 113 Positions are for J2000
Event circumstances last updated at 2024/02/25 04:10:41 UT
Marc W. Buie, Southwest Research Institute