Occultation event with (13182) 96SO8, event index number 3190
Regions able to see the event: SMexico
Geocentric closest approach at 2026/01/31 03:43:54 UTC
J2000 position of star is 11:11:43.9 +01:04:48
Equinox of date position of star is 11:13:04.2 +00:56:16
Star is 61 degrees from the moon. Moon is 96% illuminated.
Stellar brightness G=14.8, apparent brightess of occulting body is G=16.3
Use an exposure time of 0.60 seconds with the standard RECON-QHY system.
SNR of 9.0 per integration for unocculted signal
Expected flux drop is 80% with SNR of 7.2 for the occulted depth (per occulted point)
Apparent velocity is 12.3 km/sec on the sky relative to the star, or, 12.4 arcsec/hr.
Position angle of asteroid motion is 103.8 degrees
The recommended exposure time corresponds to 7.4 km per image.
The 1-sigma error in the time of the event is 2.2 seconds.
The 1-sigma cross-track error in the shadow position is 31.7 km.
The sky-plane scale is 3559.3 km/arcsec.
Diameter estimates:
41.5 km assuming a 5% albedo, maximum of 3.4 sec for a central chord
16.9 km assuming a 30% albedo, maximum of 1.4 sec for a central chord
Cross-track diameter of 30.9 km used for deployment plan.
Star training set for 13182_96SO8, (2026/01/31 03:44UT) Object RA Dec mag sep mel Regulus 10:09:45.5 +11:50:19 1.3 19.12 42 Denebola 11:50:23.3 +14:25:34 2.1 16.34 64 69 Leo 11:15:05.6 -00:12:43 5.3 1.26 62 PPM 157622 11:14:05.2 +00:12:20 8.5 0.78 62 PPM 157608 11:13:02.3 +00:29:30 10.0 0.45 61 PPM 157586 11:12:01.7 +01:09:29 10.6 0.34 61 13182_96SO8 11:13:04.2 +00:56:16 16.3 62 Positions are for equinox of date
Star training set for 13182_96SO8, (2026/01/31 03:44UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 19.12 42 Denebola 11:49:02.7 +14:34:16 2.1 16.34 64 69 Leo 11:13:45.5 -00:04:10 5.3 1.26 62 PPM 157622 11:12:45.0 +00:20:52 8.5 0.78 62 PPM 157608 11:11:42.0 +00:38:02 10.0 0.45 61 PPM 157586 11:10:41.4 +01:18:00 10.6 0.34 61 13182_96SO8 11:11:43.9 +01:04:48 16.3 61 Positions are for J2000