Occultation event with (32496) 00WX182, event index number 1281
Regions able to see the event: Australia
Geocentric closest approach at 2025/09/13 19:43:32 UTC
J2000 position of star is 04:13:25.8 +12:53:51
Equinox of date position of star is 04:14:51.9 +12:57:41
Star is 16 degrees from the moon. Moon is 57% illuminated.
Stellar brightness G=16.6, apparent brightess of occulting body is G=15.7
Use an exposure time of 2.00 seconds with the standard RECON-QHY system.
SNR of 4.3 per integration for unocculted signal
Expected flux drop is 30% with SNR of 1.3 for the occulted depth (per occulted point)
Apparent velocity is 3.5 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
Position angle of asteroid motion is 22.9 degrees
The recommended exposure time corresponds to 7.0 km per image.
The 1-sigma error in the time of the event is 9.8 seconds.
The 1-sigma cross-track error in the shadow position is 11.4 km.
The sky-plane scale is 3423.5 km/arcsec.
Diameter estimates:
53.7 km assuming a 5% albedo, aximum of 15.3 sec for a central chord
21.9 km assuming a 30% albedo, maximum of 6.3 sec for a central chord
Cross-track diameter of 48.0 km used for deployment plan.
Star training set for 32496_00WX182, (2025/09/13 19:44UT) Object RA Dec mag sep mel Aldebaran 04:37:23.9 +16:33:32 0.8 6.53 11 Bellatrix 05:26:30.7 +06:22:15 1.6 18.84 23 PPM 119653 04:10:28.0 +13:27:52 5.9 1.18 16 PPM 119715 04:15:15.9 +12:49:03 7.3 0.17 16 32496_00WX182 04:14:51.9 +12:57:41 15.7 16 Positions are for equinox of date
Star training set for 32496_00WX182, (2025/09/13 19:44UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 6.53 11 Bellatrix 05:25:07.8 +06:20:58 1.6 18.84 23 PPM 119653 04:09:01.7 +13:23:54 5.9 1.18 16 PPM 119715 04:13:49.9 +12:45:15 7.3 0.17 16 32496_00WX182 04:13:25.8 +12:53:51 15.7 16 Positions are for J2000