Event between 04XX190 and star GA1120:02272355 with event index number of 1979799
Geocentric closest approach at 2023/04/15 08:52:01 UTC
J2000 position of star is 06:35:13.3 +23:54:52
Equinox of date position of star is 06:36:37.6 +23:53:40
Stellar brightness G=13.6,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 136 degrees from the moon.
Moon is 28% illuminated.
Apparent brightness V=23.2
Object is 42.1 AU from the Sun
and 42.4 AU from the Earth.
Apparent velocity is 12.8
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 597 seconds.
The 1-sigma cross-track error in the shadow position is
3041 km.
The object has an absolute magnitude Hv=6.8
Diameter=258.2 km assuming a 5% albedo -- 20.1 sec chord
Diameter=105.4 km assuming a 30% albedo -- 8.2 sec chord
Dynamical classification is CLASSICAL
Star training set for 04XX190, (2023/04/15 08:52UT) Object RA Dec mag sep mel Pollux 07:46:44.3 +27:58:05 1.1 16.26 152 Alhena 06:39:03.4 +16:22:39 1.9 7.54 136 PPM 096264 06:38:52.9 +24:34:10 6.5 0.85 137 PPM 096281 06:39:17.5 +23:34:59 7.7 0.68 137 PPM 096208 06:36:20.0 +24:16:36 9.9 0.39 136 PPM 096213 06:36:30.1 +23:57:42 10.1 0.07 136 04XX190 06:36:38.6 +23:53:39 13.6 137 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 04XX190, (2023/04/15 08:52UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 16.26 152 Alhena 06:37:42.8 +16:23:57 1.9 7.54 136 PPM 096264 06:37:27.2 +24:35:27 6.5 0.85 137 PPM 096281 06:37:52.4 +23:36:17 7.7 0.68 137 PPM 096208 06:34:54.5 +24:17:49 9.9 0.39 136 PPM 096213 06:35:04.8 +23:58:54 10.1 0.07 136 04XX190 06:35:13.3 +23:54:52 13.6 136 Positions are for J2000
Event circumstances last updated at 2023/01/07 03:19:54 UT
Marc W. Buie, Southwest Research Institute