Occultation event with (2363) Cebriones, event index number 5091
Regions able to see the event: SAmericaS
Geocentric closest approach at 2026/12/07 06:10:31 UTC
J2000 position of star is 05:50:02.0 -08:34:20
Equinox of date position of star is 05:51:19.4 -08:33:58
Star is 132 degrees from the moon. Moon is 3% illuminated.
Stellar brightness G=14.3, apparent brightess of occulting body is G=14.3
Use an exposure time of 0.45 seconds with the standard RECON-QHY system.
SNR of 9.8 per integration for unocculted signal
Expected flux drop is 51% with SNR of 5.0 for the occulted depth (per occulted point)
Apparent velocity is 19.0 km/sec on the sky relative to the star, or, 20.5 arcsec/hr.
Position angle of asteroid motion is 67.1 degrees
The recommended exposure time corresponds to 8.5 km per image.
The 1-sigma error in the time of the event is 0.2 seconds.
The 1-sigma cross-track error in the shadow position is 34.9 km.
The sky-plane scale is 3327.4 km/arcsec.
Diameter estimates:
93.8 km assuming a 5% albedo, maximum of 4.9 sec for a central chord
38.3 km assuming a 30% albedo, maximum of 2.0 sec for a central chord
Cross-track diameter of 96.0 km used for deployment plan.
Star training set for 2363_Cebriones, (2026/12/07 06:11UT) Object RA Dec mag sep mel Rigel 05:15:50.0 -08:10:21 0.1 8.79 138 Saiph 05:49:02.1 -09:39:43 2.1 1.23 132 55 Ori 05:52:40.1 -07:30:46 5.3 1.10 133 PPM 188475 05:49:57.3 -08:55:31 8.3 0.49 132 PPM 188494 05:51:18.1 -08:30:54 9.6 0.05 132 2363_Cebriones 05:51:19.4 -08:33:58 14.3 132 Positions are for equinox of date
Star training set for 2363_Cebriones, (2026/12/07 06:11UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 8.79 138 Saiph 05:47:45.4 -09:40:11 2.1 1.23 132 55 Ori 05:51:22.0 -07:31:05 5.3 1.10 133 PPM 188475 05:48:40.1 -08:55:56 8.3 0.49 132 PPM 188494 05:50:00.6 -08:31:16 9.6 0.05 132 2363_Cebriones 05:50:02.0 -08:34:20 14.3 132 Positions are for J2000