Occultation event with (13182) 96SO8, event index number 1057
Regions able to see the event: Australia
Geocentric closest approach at 2025/06/14 10:44:00 UTC
J2000 position of star is 09:19:01.2 +13:41:58
Equinox of date position of star is 09:20:24.7 +13:35:28
Star is 161 degrees from the moon. Moon is 90% illuminated.
Stellar brightness G=15.9, apparent brightess of occulting body is G=16.9
Use an exposure time of 0.45 seconds with the standard RECON-QHY system.
SNR of 3.1 per integration for unocculted signal
Expected flux drop is 72% with SNR of 2.2 for the occulted depth (per occulted point)
Apparent velocity is 28.9 km/sec on the sky relative to the star, or, 23.4 arcsec/hr.
Position angle of asteroid motion is 341.1 degrees
The recommended exposure time corresponds to 13.0 km per image.
The 1-sigma error in the time of the event is 1.8 seconds.
The 1-sigma cross-track error in the shadow position is 27.2 km.
The sky-plane scale is 4447.8 km/arcsec.
Diameter estimates:
41.3 km assuming a 5% albedo, aximum of 1.4 sec for a central chord
16.9 km assuming a 30% albedo, maximum of 0.6 sec for a central chord
Cross-track diameter of 41.3 km used for deployment plan.
Star training set for 13182_96SO8, (2025/06/14 10:44UT) Object RA Dec mag sep mel Regulus 10:09:43.5 +11:50:31 1.3 12.15 150 PPM 126361 09:22:39.5 +15:15:43 6.4 1.76 161 PPM 126363 09:22:41.7 +13:00:05 6.9 0.81 160 PPM 126316 09:20:12.1 +13:32:40 9.7 0.07 161 13182_96SO8 09:20:24.7 +13:35:28 16.9 161 Positions are for equinox of date
Star training set for 13182_96SO8, (2025/06/14 10:44UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 12.15 150 PPM 126361 09:21:15.3 +15:22:17 6.4 1.76 161 PPM 126363 09:21:18.5 +13:06:39 6.9 0.81 160 PPM 126316 09:18:48.6 +13:39:10 9.7 0.07 161 13182_96SO8 09:19:01.2 +13:41:58 16.9 161 Positions are for J2000