Event between (24952) 97QJ4 and star GA1240:00725334 with event index number of 1558224
Geocentric closest approach at 2026/09/29 18:56:58 UTC
J2000 position of star is 03:29:00.9 +35:23:50
Equinox of date position of star is 03:30:32.1 +35:28:41
Stellar brightness G=15.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 16 degrees from the moon.
Moon is 88% illuminated.
Apparent brightness V=22.6
Object is 30.6 AU from the Sun
and 30.0 AU from the Earth.
Apparent velocity is 14.3
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 238 seconds.
The 1-sigma cross-track error in the shadow position is
2264 km.
The object has an absolute magnitude Hv=7.6
Diameter=183.7 km assuming a 5% albedo -- 13.0 sec chord
Diameter=75.0 km assuming a 30% albedo -- 5.3 sec chord
Dynamical classification is 3:2E
Star training set for 24952, (2026/09/29 18:56UT) Object RA Dec mag sep mel Aldebaran 04:37:27.5 +16:33:40 0.8 24.07 25 44Zet Per 03:55:49.2 +31:57:39 2.8 6.30 17 PPM 068561 03:34:22.7 +35:33:02 5.9 0.75 17 PPM 068499 03:30:31.8 +35:53:50 8.0 0.41 16 PPM 068484 03:29:55.4 +35:22:48 9.4 0.20 16 24952 03:30:43.3 +35:29:17 15.3 16 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 24952, (2026/09/29 18:56UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 24.07 25 44Zet Per 03:54:07.9 +31:53:01 2.8 6.30 17 PPM 068561 03:32:40.0 +35:27:42 5.9 0.75 17 PPM 068499 03:28:49.1 +35:48:23 8.0 0.41 16 PPM 068484 03:28:13.1 +35:17:20 9.4 0.20 16 24952 03:29:00.9 +35:23:50 15.3 16 Positions are for J2000
Event circumstances last updated at 2023/10/25 01:50:47 UT
Marc W. Buie, Southwest Research Institute