Occultation event with (32475) 00SD234, event index number 4300
Regions able to see the event: Europe
Geocentric closest approach at 2026/09/24 21:31:21 UTC
J2000 position of star is 04:51:39.2 +47:49:26
Equinox of date position of star is 04:53:39.1 +47:52:01
Star is 97 degrees from the moon. Moon is 96% illuminated.
Stellar brightness G=14.4, apparent brightess of occulting body is G=16.5
Use an exposure time of 0.40 seconds with the standard RECON-QHY system.
SNR of 9.3 per integration for unocculted signal
Expected flux drop is 87% with SNR of 8.1 for the occulted depth (per occulted point)
Apparent velocity is 15.9 km/sec on the sky relative to the star, or, 15.4 arcsec/hr.
Position angle of asteroid motion is 6.7 degrees
The recommended exposure time corresponds to 6.4 km per image.
The 1-sigma error in the time of the event is 2.6 seconds.
The 1-sigma cross-track error in the shadow position is 12.2 km.
The sky-plane scale is 3730.6 km/arcsec.
Diameter estimates:
41.9 km assuming a 5% albedo, maximum of 2.6 sec for a central chord
17.1 km assuming a 30% albedo, maximum of 1.1 sec for a central chord
Cross-track diameter of 38.4 km used for deployment plan.
Star training set for 32475_00SD234, (2026/09/24 21:31UT) Object RA Dec mag sep mel Aldebaran 04:37:27.5 +16:33:39 0.8 31.48 90 34Bet Aur 06:01:29.4 +44:56:50 1.9 12.03 108 PPM 047420 04:53:10.4 +48:47:02 5.7 0.92 97 PPM 047386 04:51:24.2 +47:14:22 7.8 0.73 96 PPM 047398 04:52:07.1 +47:54:29 8.6 0.26 96 PPM 047441 04:54:34.8 +47:53:45 10.7 0.16 97 32475_00SD234 04:53:39.1 +47:52:01 16.5 97 Positions are for equinox of date
Star training set for 32475_00SD234, (2026/09/24 21:31UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 31.48 90 34Bet Aur 05:59:31.6 +44:56:51 1.9 12.03 108 PPM 047420 04:51:09.2 +48:44:26 5.7 0.92 97 PPM 047386 04:49:25.2 +47:11:42 7.8 0.73 96 PPM 047398 04:50:07.1 +47:51:50 8.6 0.26 96 PPM 047441 04:52:34.7 +47:51:12 10.7 0.16 97 32475_00SD234 04:51:39.2 +47:49:26 16.5 97 Positions are for J2000