Occultation event with (11089) 94CS8, event index number 4677
Regions able to see the event: Europe
Geocentric closest approach at 2026/11/14 01:14:29 UTC
J2000 position of star is 02:38:25.5 +06:39:45
Equinox of date position of star is 02:39:50.9 +06:46:39
Star is 114 degrees from the moon. Moon is 20% illuminated.
Stellar brightness G=15.4, apparent brightess of occulting body is G=15.6
Use an exposure time of 0.55 seconds with the standard RECON-QHY system.
SNR of 5.1 per integration for unocculted signal
Expected flux drop is 54% with SNR of 2.7 for the occulted depth (per occulted point)
Apparent velocity is 16.4 km/sec on the sky relative to the star, or, 19.3 arcsec/hr.
Position angle of asteroid motion is 76.2 degrees
The recommended exposure time corresponds to 9.0 km per image.
The 1-sigma error in the time of the event is 0.8 seconds.
The 1-sigma cross-track error in the shadow position is 19.8 km.
The sky-plane scale is 3056.6 km/arcsec.
Diameter estimates:
42.3 km assuming a 5% albedo, maximum of 2.6 sec for a central chord
17.3 km assuming a 30% albedo, maximum of 1.1 sec for a central chord
Cross-track diameter of 37.0 km used for deployment plan.
Star training set for 11089_94CS8, (2026/11/14 01:14UT) Object RA Dec mag sep mel Aldebaran 04:37:27.9 +16:33:40 0.8 30.36 145 Menkar 03:03:41.2 +04:11:37 2.5 6.47 118 PPM 145742 02:37:33.4 +07:00:47 5.8 0.62 114 PPM 145741 02:37:28.0 +06:32:53 7.0 0.63 114 PPM 145771 02:40:06.5 +07:03:38 8.6 0.29 114 11089_94CS8 02:39:50.9 +06:46:39 15.6 115 Positions are for equinox of date
Star training set for 11089_94CS8, (2026/11/14 01:14UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 30.36 145 Menkar 03:02:16.8 +04:05:21 2.5 6.47 118 PPM 145742 02:36:08.0 +06:53:50 5.8 0.62 114 PPM 145741 02:36:02.8 +06:25:56 7.0 0.63 114 PPM 145771 02:38:41.0 +06:56:44 8.6 0.29 114 11089_94CS8 02:38:25.5 +06:39:45 15.6 114 Positions are for J2000