Event between (523955) 98UU43 and star GA1080:00767268 with event index number of 2352374
Geocentric closest approach at 2023/03/15 19:57:44 UTC
J2000 position of star is 04:59:14.5 +18:28:58
Equinox of date position of star is 05:00:35.1 +18:30:57
Stellar brightness G=15.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 159 degrees from the moon.
Moon is 42% illuminated.
Apparent brightness V=22.8
Object is 34.5 AU from the Sun
and 34.7 AU from the Earth.
Apparent velocity is 9.4
km/sec on the sky relative to the star, or,
1.4 arcsec/hr.
The 1-sigma error in the time of the event is 550 seconds.
The 1-sigma cross-track error in the shadow position is
1277 km.
The object has an absolute magnitude Hv=7.2
Diameter=199.5 km assuming a 5% albedo -- 23.0 sec chord
Diameter=81.5 km assuming a 30% albedo -- 9.4 sec chord
Dynamical classification is 4:3E
Star training set for 523955, (2023/03/15 19:59UT) Object RA Dec mag sep mel Aldebaran 04:37:15.3 +16:33:15 0.8 5.90 153 Alnath 05:27:45.6 +28:37:30 1.6 11.86 168 PPM 120426 04:58:42.8 +17:11:16 6.3 1.40 158 PPM 120566 05:06:11.3 +18:17:04 7.7 1.35 160 PPM 120451 05:00:03.2 +18:40:24 9.4 0.20 159 523955 05:00:35.9 +18:30:58 15.2 159 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 523955, (2023/03/15 19:59UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 5.90 153 Alnath 05:26:17.6 +28:36:23 1.6 11.86 168 PPM 120426 04:57:22.2 +17:09:12 6.3 1.40 158 PPM 120566 05:04:50.0 +18:15:14 7.7 1.35 160 PPM 120451 04:58:41.8 +18:38:23 9.4 0.20 159 523955 04:59:14.5 +18:28:58 15.2 159 Positions are for J2000
Event circumstances last updated at 2022/12/24 03:42:55 UT
Marc W. Buie, Southwest Research Institute