Occultation event with (13182) 96SO8, event index number 1603
Regions able to see the event: US
Geocentric closest approach at 2025/11/27 13:38:59 UTC
J2000 position of star is 11:10:31.1 +02:12:06
Equinox of date position of star is 11:11:51.0 +02:03:39
Star is 159 degrees from the moon. Moon is 43% illuminated.
Stellar brightness G=16.0, apparent brightess of occulting body is G=16.9
Use an exposure time of 0.50 seconds with the standard RECON-QHY system.
SNR of 3.0 per integration for unocculted signal
Expected flux drop is 69% with SNR of 2.1 for the occulted depth (per occulted point)
Apparent velocity is 17.9 km/sec on the sky relative to the star, or, 15.3 arcsec/hr.
Position angle of asteroid motion is 120.0 degrees
The recommended exposure time corresponds to 9.0 km per image.
The 1-sigma error in the time of the event is 1.9 seconds.
The 1-sigma cross-track error in the shadow position is 22.4 km.
The sky-plane scale is 4223.9 km/arcsec.
Diameter estimates:
41.5 km assuming a 5% albedo, aximum of 2.3 sec for a central chord
16.9 km assuming a 30% albedo, maximum of 0.9 sec for a central chord
Cross-track diameter of 30.9 km used for deployment plan.
Star training set for 13182_96SO8, (2025/11/27 13:39UT) Object RA Dec mag sep mel Regulus 10:09:44.9 +11:50:23 1.3 18.23 177 Denebola 11:50:22.8 +14:25:38 2.1 15.60 153 75 Leo 11:18:37.4 +01:52:04 6.5 1.70 157 PPM 157569 11:10:59.7 +02:18:56 8.2 0.33 159 PPM 157602 11:12:51.4 +01:55:12 9.4 0.29 158 13182_96SO8 11:11:51.0 +02:03:39 16.9 158 Positions are for equinox of date
Star training set for 13182_96SO8, (2025/11/27 13:39UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 18.23 177 Denebola 11:49:02.7 +14:34:16 2.1 15.60 153 75 Leo 11:17:17.5 +02:00:34 6.5 1.70 157 PPM 157569 11:09:39.7 +02:27:23 8.2 0.33 159 PPM 157602 11:11:31.5 +02:03:40 9.4 0.29 158 13182_96SO8 11:10:31.1 +02:12:06 16.9 159 Positions are for J2000