Occultation event with (32496) 00WX182, event index number 5175
Regions able to see the event: Australia
Geocentric closest approach at 2026/12/11 17:20:24 UTC
J2000 position of star is 05:44:27.8 +36:59:00
Equinox of date position of star is 05:46:17.7 +36:59:35
Star is 156 degrees from the moon. Moon is 6% illuminated.
Stellar brightness G=16.5, apparent brightess of occulting body is G=15.2
Use an exposure time of 1.10 seconds with the standard RECON-QHY system.
SNR of 3.0 per integration for unocculted signal
Expected flux drop is 24% with SNR of 0.7 for the occulted depth (per occulted point)
Apparent velocity is 20.1 km/sec on the sky relative to the star, or, 22.5 arcsec/hr.
Position angle of asteroid motion is 108.3 degrees
The recommended exposure time corresponds to 22.1 km per image.
The 1-sigma error in the time of the event is 0.4 seconds.
The 1-sigma cross-track error in the shadow position is 38.0 km.
The sky-plane scale is 3202.8 km/arcsec.
Diameter estimates:
53.7 km assuming a 5% albedo, maximum of 2.7 sec for a central chord
21.9 km assuming a 30% albedo, maximum of 1.1 sec for a central chord
Cross-track diameter of 48.0 km used for deployment plan.
Star training set for 32496_00WX182, (2026/12/11 17:20UT) Object RA Dec mag sep mel Aldebaran 04:37:28.2 +16:33:41 0.8 25.47 140 34Bet Aur 06:01:30.4 +44:56:50 1.9 8.45 154 31Ups Aur 05:52:52.8 +37:18:38 6.3 1.35 157 PPM 070818 05:47:53.1 +37:17:22 7.9 0.43 156 PPM 070772 05:45:40.7 +36:56:28 10.8 0.13 156 32496_00WX182 05:46:17.7 +36:59:35 15.2 156 Positions are for equinox of date
Star training set for 32496_00WX182, (2026/12/11 17:20UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 25.47 140 34Bet Aur 05:59:31.6 +44:56:51 1.9 8.45 154 31Ups Aur 05:51:02.6 +37:18:19 6.3 1.35 157 PPM 070818 05:46:02.9 +37:16:51 7.9 0.43 156 PPM 070772 05:43:50.8 +36:55:53 10.8 0.13 156 32496_00WX182 05:44:27.8 +36:59:00 15.2 156 Positions are for J2000