Occultation event with (32475) 00SD234, event index number 4511
Regions able to see the event: SAmericaN,NMexico,SMexico
Geocentric closest approach at 2026/10/29 07:28:46 UTC
J2000 position of star is 04:42:57.9 +50:58:36
Equinox of date position of star is 04:45:02.3 +51:01:31
Star is 24 degrees from the moon. Moon is 87% illuminated.
Stellar brightness G=16.4, apparent brightess of occulting body is G=16.2
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 45% with SNR of 1.4 for the occulted depth (per occulted point)
Apparent velocity is 16.8 km/sec on the sky relative to the star, or, 17.5 arcsec/hr.
Position angle of asteroid motion is 129.1 degrees
The recommended exposure time corresponds to 15.1 km per image.
The 1-sigma error in the time of the event is 0.7 seconds.
The 1-sigma cross-track error in the shadow position is 41.6 km.
The sky-plane scale is 3453.5 km/arcsec.
Diameter estimates:
41.9 km assuming a 5% albedo, maximum of 2.5 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, (2026/10/29 07:29UT) Object RA Dec mag sep mel Aldebaran 04:37:27.8 +16:33:40 0.8 34.50 13 Mirphak 03:26:15.2 +49:57:16 1.8 12.54 30 PPM 047292 04:45:24.5 +50:01:19 5.9 1.00 23 PPM 029390 04:49:39.9 +50:36:54 8.2 0.84 23 PPM 029302 04:42:19.1 +51:09:27 9.1 0.45 24 PPM 029329 04:44:21.2 +51:07:44 10.1 0.15 24 32475_00SD234 04:45:02.3 +51:01:31 16.2 24 Positions are for equinox of date
Star training set for 32475_00SD234, (2026/10/29 07:29UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 34.50 13 Mirphak 03:24:19.4 +49:51:40 1.8 12.54 30 PPM 047292 04:43:21.6 +49:58:25 5.9 1.00 23 PPM 029390 04:47:35.9 +50:34:09 8.2 0.84 23 PPM 029302 04:40:14.8 +51:06:26 9.1 0.45 24 PPM 029329 04:42:16.8 +51:04:47 10.1 0.15 24 32475_00SD234 04:42:57.9 +50:58:36 16.2 24 Positions are for J2000