Occultation event with (54656) 00SX362, event index number 4731
Regions able to see the event: NMexico,SMexico
Geocentric closest approach at 2026/11/17 09:43:29 UTC
J2000 position of star is 06:24:19.2 +01:53:05
Equinox of date position of star is 06:25:43.1 +01:52:06
Star is 129 degrees from the moon. Moon is 49% illuminated.
Stellar brightness G=13.4, apparent brightess of occulting body is G=16.2
Use an exposure time of 0.15 seconds with the standard RECON-QHY system.
SNR of 9.6 per integration for unocculted signal
Expected flux drop is 93% with SNR of 8.9 for the occulted depth (per occulted point)
Apparent velocity is 12.3 km/sec on the sky relative to the star, or, 12.5 arcsec/hr.
Position angle of asteroid motion is 87.5 degrees
The recommended exposure time corresponds to 1.8 km per image.
The 1-sigma error in the time of the event is 1.4 seconds.
The 1-sigma cross-track error in the shadow position is 29.6 km.
The sky-plane scale is 3545.6 km/arcsec.
Diameter estimates:
44.9 km assuming a 5% albedo, maximum of 3.6 sec for a central chord
18.3 km assuming a 30% albedo, maximum of 1.5 sec for a central chord
Cross-track diameter of 37.7 km used for deployment plan.
Star training set for 54656_00SX362, (2026/11/17 09:43UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.7 +07:24:35 0.4 9.12 123 34Del Ori 05:33:22.9 -00:16:53 2.2 13.26 116 PPM 150472 06:26:42.1 +01:29:04 6.5 0.46 129 PPM 150441 06:25:54.2 +02:00:53 9.4 0.15 129 54656_00SX362 06:25:43.1 +01:52:06 16.2 129 Positions are for equinox of date
Star training set for 54656_00SX362, (2026/11/17 09:43UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 9.12 123 34Del Ori 05:32:00.4 -00:17:57 2.2 13.26 116 PPM 150472 06:25:18.5 +01:30:05 6.5 0.46 129 PPM 150441 06:24:30.3 +02:01:52 9.4 0.15 129 54656_00SX362 06:24:19.2 +01:53:05 16.2 129 Positions are for J2000