Event between 04VD131 and star GA1120:00653156 with event index number of 2632064
Geocentric closest approach at 2023/01/31 11:52:26 UTC
J2000 position of star is 04:24:39.3 +23:41:11
Equinox of date position of star is 04:26:02.4 +23:44:16
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 6 degrees from the moon.
Moon is 77% illuminated.
Apparent brightness V=23.0
Object is 43.2 AU from the Sun
and 42.7 AU from the Earth.
Apparent velocity is 9.4
km/sec on the sky relative to the star, or,
1.1 arcsec/hr.
The 1-sigma error in the time of the event is 954 seconds.
The 1-sigma cross-track error in the shadow position is
3778 km.
The object has an absolute magnitude Hv=6.5
Diameter=296.5 km assuming a 5% albedo -- 31.6 sec chord
Diameter=121.0 km assuming a 30% albedo -- 12.9 sec chord
Dynamical classification is CLASSICAL
Star training set for 04VD131, (2023/01/31 11:52UT) Object RA Dec mag sep mel Aldebaran 04:37:14.9 +16:33:14 0.8 7.65 9 44Zet Per 03:55:35.3 +31:57:01 2.8 10.61 14 72 Tau 04:28:40.5 +23:02:46 5.3 0.92 5 PPM 093479 04:24:54.3 +24:27:26 7.6 0.76 6 PPM 093525 04:28:35.2 +23:33:48 9.1 0.61 5 PPM 093470 04:24:34.2 +23:51:41 11.9 0.36 6 04VD131 04:26:02.7 +23:44:16 16.4 5 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 04VD131, (2023/01/31 11:52UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 7.65 9 44Zet Per 03:54:07.9 +31:53:01 2.8 10.61 14 72 Tau 04:27:17.5 +22:59:45 5.3 0.92 5 PPM 093479 04:23:30.5 +24:24:18 7.6 0.76 6 PPM 093525 04:27:11.8 +23:30:47 9.1 0.61 5 PPM 093470 04:23:10.7 +23:48:33 11.9 0.36 6 04VD131 04:24:39.3 +23:41:11 16.4 6 Positions are for J2000
Event circumstances last updated at 2023/01/07 03:18:28 UT
Marc W. Buie, Southwest Research Institute