Occultation event with (32475) 00SD234, event index number 4428
Regions able to see the event: Europe
Geocentric closest approach at 2026/10/17 22:59:28 UTC
J2000 position of star is 04:48:19.6 +50:03:10
Equinox of date position of star is 04:50:22.7 +50:05:53
Star is 143 degrees from the moon. Moon is 43% illuminated.
Stellar brightness G=16.2, apparent brightess of occulting body is G=16.3
Use an exposure time of 0.70 seconds with the standard RECON-QHY system.
SNR of 3.1 per integration for unocculted signal
Expected flux drop is 53% with SNR of 1.6 for the occulted depth (per occulted point)
Apparent velocity is 15.6 km/sec on the sky relative to the star, or, 15.9 arcsec/hr.
Position angle of asteroid motion is 146.3 degrees
The recommended exposure time corresponds to 10.9 km per image.
The 1-sigma error in the time of the event is 1.5 seconds.
The 1-sigma cross-track error in the shadow position is 35.2 km.
The sky-plane scale is 3530.6 km/arcsec.
Diameter estimates:
41.9 km assuming a 5% albedo, maximum of 2.7 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, (2026/10/17 22:59UT) Object RA Dec mag sep mel Aldebaran 04:37:27.7 +16:33:39 0.8 33.64 142 34Bet Aur 06:01:29.7 +44:56:50 1.9 13.02 156 PPM 047292 04:45:24.3 +50:01:19 5.9 0.80 142 PPM 029380 04:48:42.9 +50:11:55 8.0 0.29 143 PPM 029414 04:50:58.3 +50:08:03 9.3 0.10 143 32475_00SD234 04:50:22.7 +50:05:53 16.3 143 Positions are for equinox of date
Star training set for 32475_00SD234, (2026/10/17 22:59UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 33.64 142 34Bet Aur 05:59:31.6 +44:56:51 1.9 13.02 156 PPM 047292 04:43:21.6 +49:58:25 5.9 0.80 142 PPM 029380 04:46:39.6 +50:09:08 8.0 0.29 143 PPM 029414 04:48:55.1 +50:05:21 9.3 0.10 143 32475_00SD234 04:48:19.6 +50:03:10 16.3 143 Positions are for J2000