Event between (119315) 01SQ73 and star GA1220:03392615 with event index number of 2111705
Geocentric closest approach at 2025/10/05 03:04:44 UTC
J2000 position of star is 09:11:07.6 +32:56:08
Equinox of date position of star is 09:12:36.1 +32:50:07
Stellar brightness G=15.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 143 degrees from the moon.
Moon is 94% illuminated.
Apparent brightness V=22.9
Object is 20.4 AU from the Sun
and 20.8 AU from the Earth.
Apparent velocity is 20.8
km/sec on the sky relative to the star, or,
4.9 arcsec/hr.
The 1-sigma error in the time of the event is 239 seconds.
The 1-sigma cross-track error in the shadow position is
2372 km.
The object has an absolute magnitude Hv=9.5
Diameter=72.4 km assuming a 5% albedo -- 3.6 sec chord
Diameter=29.6 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
Star training set for 119315, (2025/10/05 03:05UT) Object RA Dec mag sep mel Pollux 07:46:53.5 +27:57:43 1.1 19.09 128 PPM 074277 09:10:25.6 +33:46:34 6.4 1.06 142 PPM 074265 09:09:38.2 +32:26:06 6.8 0.76 143 PPM 074285 09:11:10.5 +33:17:56 8.8 0.57 142 PPM 074308 09:12:55.5 +32:50:13 10.4 0.05 143 119315 09:12:41.7 +32:49:44 15.9 143 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 119315, (2025/10/05 03:05UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 19.09 128 PPM 074277 09:08:50.8 +33:52:54 6.4 1.06 142 PPM 074265 09:08:04.1 +32:32:25 6.8 0.76 143 PPM 074285 09:09:36.0 +33:24:17 8.8 0.57 142 PPM 074308 09:11:21.4 +32:56:37 10.4 0.05 143 119315 09:11:07.6 +32:56:08 15.9 143 Positions are for J2000
Event circumstances last updated at 2024/03/21 22:30:22 UT
Marc W. Buie, Southwest Research Institute