Event between (19521) Chaos and star GA1220:02821592 with event index number of 2670318
Geocentric closest approach at 2029/01/23 19:00:04 UTC
J2000 position of star is 06:36:27.0 +32:27:08
Equinox of date position of star is 06:38:01.5 +32:25:49
Stellar brightness G=13.7,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 53 degrees from the moon.
Moon is 60% illuminated.
Apparent brightness V=20.8
Object is 41.0 AU from the Sun
and 40.2 AU from the Earth.
Apparent velocity is 22.5
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 654 seconds.
The 1-sigma cross-track error in the shadow position is
1933 km.
The object has an absolute magnitude Hv=4.6
Diameter=711.2 km assuming a 5% albedo -- 31.8 sec chord
Diameter=290.4 km assuming a 30% albedo -- 13.0 sec chord
Dynamical classification is CLASSICAL
Star training set for 19521, (2029/01/23 19:04UT) Object RA Dec mag sep mel Pollux 07:47:05.7 +27:57:13 1.1 15.49 68 34Bet Aur 06:01:39.7 +44:56:49 1.9 14.40 47 PPM 071742 06:34:20.9 +32:25:54 6.0 0.84 52 PPM 071825 06:37:31.5 +32:33:04 7.9 0.21 52 PPM 071834 06:37:57.0 +32:36:44 8.7 0.20 53 19521 06:38:20.7 +32:25:33 13.7 53 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 19521, (2029/01/23 19:04UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 15.49 68 34Bet Aur 05:59:31.6 +44:56:51 1.9 14.40 47 PPM 071742 06:32:27.1 +32:27:18 6.0 0.84 52 PPM 071825 06:35:37.7 +32:34:37 7.9 0.21 52 PPM 071834 06:36:03.1 +32:38:17 8.7 0.20 53 19521 06:36:27.0 +32:27:08 13.7 53 Positions are for J2000
Event circumstances last updated at 2024/02/28 22:14:06 UT
Marc W. Buie, Southwest Research Institute