Event between (523983) 99RY214 and star GA1220:00671775 with event index number of 2372187
Geocentric closest approach at 2028/11/22 19:26:41 UTC
J2000 position of star is 03:35:24.0 +33:45:04
Equinox of date position of star is 03:36:57.1 +33:49:52
Stellar brightness G=15.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 101 degrees from the moon.
Moon is 39% illuminated.
Apparent brightness V=23.1
Object is 37.5 AU from the Sun
and 36.5 AU from the Earth.
Apparent velocity is 24.9
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 647 seconds.
The 1-sigma cross-track error in the shadow position is
4753 km.
The object has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 8.2 sec chord
Diameter=81.5 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is SCATEXTD
Star training set for 523983, (2028/11/22 19:27UT) Object RA Dec mag sep mel Aldebaran 04:37:34.9 +16:33:55 0.8 21.96 112 44Zet Per 03:55:57.4 +31:58:01 2.8 4.36 104 40 Per 03:44:13.0 +34:03:19 4.8 1.46 102 PPM 068625 03:38:37.3 +34:26:27 7.9 0.66 101 PPM 068600 03:37:12.6 +33:46:14 8.8 0.07 101 523983 03:37:13.8 +33:50:43 15.5 101 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 523983, (2028/11/22 19:27UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 21.96 112 44Zet Per 03:54:07.9 +31:53:01 2.8 4.36 104 40 Per 03:42:22.6 +33:57:54 4.8 1.46 102 PPM 068625 03:36:46.9 +34:20:50 7.9 0.66 101 PPM 068600 03:35:22.8 +33:40:34 8.8 0.07 101 523983 03:35:24.0 +33:45:04 15.5 101 Positions are for J2000
Event circumstances last updated at 2024/06/25 21:30:32 UT
Marc W. Buie, Southwest Research Institute