Occultation event with (2363) Cebriones, event index number 3206
Regions able to see the event: SAmericaN,SAmericaS
Geocentric closest approach at 2026/02/04 00:04:45 UTC
J2000 position of star is 03:30:39.2 +00:35:20
Equinox of date position of star is 03:31:59.7 +00:40:36
Star is 110 degrees from the moon. Moon is 95% illuminated.
Stellar brightness G=16.1, apparent brightess of occulting body is G=14.8
Use an exposure time of 2.00 seconds with the standard RECON-QHY system.
SNR of 5.9 per integration for unocculted signal
Expected flux drop is 24% with SNR of 1.4 for the occulted depth (per occulted point)
Apparent velocity is 8.0 km/sec on the sky relative to the star, or, 7.5 arcsec/hr.
Position angle of asteroid motion is 55.0 degrees
The recommended exposure time corresponds to 15.9 km per image.
The 1-sigma error in the time of the event is 1.3 seconds.
The 1-sigma cross-track error in the shadow position is 31.5 km.
The sky-plane scale is 3795.2 km/arcsec.
Diameter estimates:
93.8 km assuming a 5% albedo, maximum of 11.8 sec for a central chord
38.3 km assuming a 30% albedo, maximum of 4.8 sec for a central chord
Cross-track diameter of 96.0 km used for deployment plan.
Star training set for 2363_Cebriones, (2026/02/04 00:05UT) Object RA Dec mag sep mel Aldebaran 04:37:25.3 +16:33:35 0.8 22.63 92 Menkar 03:03:38.8 +04:11:26 2.5 7.90 117 10 Tau 03:38:12.4 +00:28:58 4.3 1.56 109 PPM 146726 03:38:07.8 +00:40:16 6.7 1.53 109 PPM 146622 03:31:33.0 +00:48:38 9.4 0.17 110 2363_Cebriones 03:31:59.7 +00:40:36 14.8 110 Positions are for equinox of date
Star training set for 2363_Cebriones, (2026/02/04 00:05UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 22.63 92 Menkar 03:02:16.8 +04:05:21 2.5 7.90 117 10 Tau 03:36:52.0 +00:23:54 4.3 1.56 109 PPM 146726 03:36:47.2 +00:35:11 6.7 1.53 109 PPM 146622 03:30:12.4 +00:43:21 9.4 0.17 110 2363_Cebriones 03:30:39.2 +00:35:20 14.8 110 Positions are for J2000