Occultation event with (2363) Cebriones, event index number 4385
Regions able to see the event: UAE
Geocentric closest approach at 2026/10/12 22:05:28 UTC
J2000 position of star is 06:04:43.3 -03:38:19
Equinox of date position of star is 06:06:03.4 -03:38:32
Star is 126 degrees from the moon. Moon is 5% illuminated.
Stellar brightness G=16.7, apparent brightess of occulting body is G=14.7
Use an exposure time of 1.80 seconds with the standard RECON-QHY system.
SNR of 3.0 per integration for unocculted signal
Expected flux drop is 13% with SNR of 0.4 for the occulted depth (per occulted point)
Apparent velocity is 16.4 km/sec on the sky relative to the star, or, 16.0 arcsec/hr.
Position angle of asteroid motion is 172.7 degrees
The recommended exposure time corresponds to 29.5 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 5.7 km.
The sky-plane scale is 3679.3 km/arcsec.
Diameter estimates:
93.8 km assuming a 5% albedo, maximum of 5.7 sec for a central chord
38.3 km assuming a 30% albedo, maximum of 2.3 sec for a central chord
Cross-track diameter of 96.0 km used for deployment plan.
Star training set for 2363_Cebriones, (2026/10/12 22:05UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.4 +07:24:35 0.4 11.30 133 Saiph 05:49:01.7 -09:39:44 2.1 7.36 126 PPM 188806 06:07:58.5 -04:11:55 5.4 0.73 125 PPM 188810 06:08:16.5 -03:20:46 7.5 0.63 126 PPM 188754 06:05:34.8 -03:26:59 9.3 0.23 126 2363_Cebriones 06:06:03.4 -03:38:32 14.7 126 Positions are for equinox of date
Star training set for 2363_Cebriones, (2026/10/12 22:05UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 11.30 133 Saiph 05:47:45.4 -09:40:11 2.1 7.36 126 PPM 188806 06:06:38.7 -04:11:38 5.4 0.73 125 PPM 188810 06:06:56.2 -03:20:28 7.5 0.63 126 PPM 188754 06:04:14.6 -03:26:48 9.3 0.23 126 2363_Cebriones 06:04:43.3 -03:38:19 14.7 126 Positions are for J2000