Occultation event with (54656) 00SX362, event index number 5045
Regions able to see the event: NMexico
Geocentric closest approach at 2026/12/05 09:52:23 UTC
J2000 position of star is 06:16:47.9 +02:00:15
Equinox of date position of star is 06:18:12.0 +01:59:34
Star is 114 degrees from the moon. Moon is 12% illuminated.
Stellar brightness G=14.9, apparent brightess of occulting body is G=16.0
Use an exposure time of 0.50 seconds with the standard RECON-QHY system.
SNR of 7.3 per integration for unocculted signal
Expected flux drop is 74% with SNR of 5.4 for the occulted depth (per occulted point)
Apparent velocity is 17.7 km/sec on the sky relative to the star, or, 18.5 arcsec/hr.
Position angle of asteroid motion is 98.3 degrees
The recommended exposure time corresponds to 8.9 km per image.
The 1-sigma error in the time of the event is 0.6 seconds.
The 1-sigma cross-track error in the shadow position is 32.4 km.
The sky-plane scale is 3445.6 km/arcsec.
Diameter estimates:
44.9 km assuming a 5% albedo, maximum of 2.5 sec for a central chord
18.3 km assuming a 30% albedo, maximum of 1.0 sec for a central chord
Cross-track diameter of 37.7 km used for deployment plan.
Star training set for 54656_00SX362, (2026/12/05 09:52UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.8 +07:24:35 0.4 7.63 121 34Del Ori 05:33:23.0 -00:16:53 2.2 11.43 124 PPM 150341 06:22:49.9 +02:15:14 6.5 1.19 113 PPM 150234 06:19:00.1 +01:45:46 7.4 0.30 114 PPM 150237 06:19:07.8 +01:54:21 10.0 0.25 114 54656_00SX362 06:18:12.0 +01:59:34 16.0 114 Positions are for equinox of date
Star training set for 54656_00SX362, (2026/12/05 09:52UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 7.63 121 34Del Ori 05:32:00.4 -00:17:57 2.2 11.43 124 PPM 150341 06:21:25.7 +02:16:06 6.5 1.19 113 PPM 150234 06:17:36.2 +01:46:29 7.4 0.30 114 PPM 150237 06:17:43.8 +01:55:04 10.0 0.25 114 54656_00SX362 06:16:47.9 +02:00:15 16.0 114 Positions are for J2000