Occultation event with (32475) 00SD234, event index number 3157
Regions able to see the event: SAmericaN,SMexico
Geocentric closest approach at 2026/01/19 02:14:13 UTC
J2000 position of star is 01:51:19.2 +29:11:04
Equinox of date position of star is 01:52:48.4 +29:18:45
Star is 95 degrees from the moon. Moon is 0% illuminated.
Stellar brightness G=16.6, apparent brightess of occulting body is G=16.4
Use an exposure time of 1.30 seconds with the standard RECON-QHY system.
SNR of 3.3 per integration for unocculted signal
Expected flux drop is 46% with SNR of 1.5 for the occulted depth (per occulted point)
Apparent velocity is 7.3 km/sec on the sky relative to the star, or, 7.1 arcsec/hr.
Position angle of asteroid motion is 86.2 degrees
The recommended exposure time corresponds to 9.5 km per image.
The 1-sigma error in the time of the event is 4.8 seconds.
The 1-sigma cross-track error in the shadow position is 23.5 km.
The sky-plane scale is 3680.2 km/arcsec.
Diameter estimates:
41.9 km assuming a 5% albedo, maximum of 5.7 sec for a central chord
17.1 km assuming a 30% albedo, maximum of 2.3 sec for a central chord
Cross-track diameter of 38.4 km used for deployment plan.
Star training set for 32475_00SD234, (2026/01/19 02:14UT) Object RA Dec mag sep mel Aldebaran 04:37:25.1 +16:33:34 0.8 39.75 127 Hamal 02:08:38.9 +23:35:04 2.0 6.74 96 2Alp Tri 01:54:34.5 +29:42:17 3.4 0.55 96 PPM 091163 01:54:39.9 +28:56:47 8.1 0.55 95 PPM 091118 01:51:37.1 +29:35:33 8.8 0.38 95 PPM 091148 01:53:06.0 +29:25:51 12.0 0.13 95 32475_00SD234 01:52:48.4 +29:18:45 16.4 95 Positions are for equinox of date
Star training set for 32475_00SD234, (2026/01/19 02:14UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 39.75 127 Hamal 02:07:10.8 +23:27:41 2.0 6.74 96 2Alp Tri 01:53:04.9 +29:34:38 3.4 0.55 96 PPM 091163 01:53:10.6 +28:49:08 8.1 0.55 95 PPM 091118 01:50:07.8 +29:27:51 8.8 0.38 95 PPM 091148 01:51:36.7 +29:18:10 12.0 0.13 95 32475_00SD234 01:51:19.2 +29:11:04 16.4 95 Positions are for J2000