Occultation event with (32475) 00SD234, event index number 4245
Regions able to see the event: Europe
Geocentric closest approach at 2026/09/15 23:34:17 UTC
J2000 position of star is 04:50:20.2 +46:54:33
Equinox of date position of star is 04:52:18.8 +46:57:11
Star is 149 degrees from the moon. Moon is 24% illuminated.
Stellar brightness G=16.5, apparent brightess of occulting body is G=16.6
Use an exposure time of 0.90 seconds with the standard RECON-QHY system.
SNR of 3.0 per integration for unocculted signal
Expected flux drop is 52% with SNR of 1.6 for the occulted depth (per occulted point)
Apparent velocity is 17.5 km/sec on the sky relative to the star, or, 16.5 arcsec/hr.
Position angle of asteroid motion is 20.2 degrees
The recommended exposure time corresponds to 15.7 km per image.
The 1-sigma error in the time of the event is 2.4 seconds.
The 1-sigma cross-track error in the shadow position is 2.7 km.
The sky-plane scale is 3817.3 km/arcsec.
Diameter estimates:
41.9 km assuming a 5% albedo, maximum of 2.4 sec for a central chord
17.1 km assuming a 30% albedo, maximum of 1.0 sec for a central chord
Cross-track diameter of 38.4 km used for deployment plan.
Star training set for 32475_00SD234, (2026/09/15 23:34UT) Object RA Dec mag sep mel Aldebaran 04:37:27.4 +16:33:39 0.8 30.55 159 34Bet Aur 06:01:29.3 +44:56:50 1.9 12.16 139 PPM 047420 04:53:10.3 +48:47:02 5.7 1.84 147 PPM 047386 04:51:24.1 +47:14:22 7.8 0.33 149 PPM 047425 04:53:33.4 +46:58:52 8.6 0.21 149 32475_00SD234 04:52:18.8 +46:57:11 16.6 148 Positions are for equinox of date
Star training set for 32475_00SD234, (2026/09/15 23:34UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 30.55 159 34Bet Aur 05:59:31.6 +44:56:51 1.9 12.16 139 PPM 047420 04:51:09.2 +48:44:26 5.7 1.84 147 PPM 047386 04:49:25.2 +47:11:42 7.8 0.33 149 PPM 047425 04:51:34.7 +46:56:17 8.6 0.21 149 32475_00SD234 04:50:20.2 +46:54:33 16.6 149 Positions are for J2000