Event between (523620) 07RH283 and star GA1240:01258822 with event index number of 2386978
Geocentric closest approach at 2023/01/23 12:01:35 UTC
J2000 position of star is 04:39:25.2 +34:06:40
Equinox of date position of star is 04:40:55.6 +34:09:17
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 107 degrees from the moon.
Moon is 4% illuminated.
Apparent brightness V=22.0
Object is 21.3 AU from the Sun
and 20.7 AU from the Earth.
Apparent velocity is 16.0
km/sec on the sky relative to the star, or,
3.8 arcsec/hr.
The 1-sigma error in the time of the event is 116 seconds.
The 1-sigma cross-track error in the shadow position is
1163 km.
The object has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 7.3 sec chord
Diameter=46.9 km assuming a 30% albedo -- 3.0 sec chord
Dynamical classification is CENTAURR
Star training set for 523620, (2023/01/23 12:02UT) Object RA Dec mag sep mel Aldebaran 04:37:14.8 +16:33:14 0.8 17.62 103 3Iot Aur 04:58:30.0 +33:12:02 2.7 3.78 111 PPM 069605 04:45:18.0 +32:54:24 6.5 1.55 108 PPM 069600 04:44:35.6 +33:58:18 8.2 0.78 108 PPM 069531 04:37:55.6 +34:15:18 9.7 0.63 107 PPM 069569 04:41:01.7 +34:10:20 10.6 0.03 107 523620 04:40:55.7 +34:09:18 16.0 107 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 523620, (2023/01/23 12:02UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 17.62 103 3Iot Aur 04:56:59.6 +33:09:58 2.7 3.78 111 PPM 069605 04:43:48.2 +32:51:55 6.5 1.55 108 PPM 069600 04:43:05.0 +33:55:47 8.2 0.78 108 PPM 069531 04:36:25.0 +34:12:35 9.7 0.63 107 PPM 069569 04:39:31.1 +34:07:43 10.6 0.03 107 523620 04:39:25.2 +34:06:40 16.0 107 Positions are for J2000
Event circumstances last updated at 2023/01/09 03:27:49 UT
Marc W. Buie, Southwest Research Institute