Event between (15820) 94TB and star GA1220:01666620 with event index number of 1862271
Geocentric closest approach at 2028/04/01 15:48:44 UTC
J2000 position of star is 05:21:00.1 +32:52:38
Equinox of date position of star is 05:22:34.9 +32:53:59
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 10 degrees from the moon.
Moon is 38% illuminated.
Apparent brightness V=22.3
Object is 27.7 AU from the Sun
and 28.0 AU from the Earth.
Apparent velocity is 17.2
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 372 seconds.
The 1-sigma cross-track error in the shadow position is
1586 km.
The object has an absolute magnitude Hv=7.6
Diameter=183.7 km assuming a 5% albedo -- 10.6 sec chord
Diameter=75.0 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is 3:2E
Star training set for 15820, (2028/04/01 15:50UT) Object RA Dec mag sep mel Aldebaran 04:37:32.7 +16:33:51 0.8 19.28 20 Alnath 05:28:04.8 +28:37:44 1.6 4.42 6 PPM 070185 05:20:51.9 +33:46:33 5.4 0.97 10 PPM 070208 05:21:51.6 +32:48:43 7.8 0.23 10 PPM 070232 05:22:45.3 +33:06:43 9.6 0.21 10 15820 05:22:51.0 +32:54:12 16.3 9 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, (2028/04/01 15:50UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 19.28 20 Alnath 05:26:17.6 +28:36:23 1.6 4.42 6 PPM 070185 05:19:00.2 +33:44:54 5.4 0.97 10 PPM 070208 05:20:00.7 +32:47:07 7.8 0.23 10 PPM 070232 05:20:54.1 +33:05:09 9.6 0.21 10 15820 05:21:00.1 +32:52:38 16.3 10 Positions are for J2000
Event circumstances last updated at 2024/02/25 04:14:01 UT
Marc W. Buie, Southwest Research Institute