Occultation event with (54656) 00SX362, event index number 4748
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/11/18 07:47:22 UTC
J2000 position of star is 06:24:00.6 +01:52:55
Equinox of date position of star is 06:25:24.4 +01:51:57
Star is 119 degrees from the moon. Moon is 58% illuminated.
Stellar brightness G=14.7, apparent brightess of occulting body is G=16.2
Use an exposure time of 0.60 seconds with the standard RECON-QHY system.
SNR of 9.7 per integration for unocculted signal
Expected flux drop is 79% with SNR of 7.7 for the occulted depth (per occulted point)
Apparent velocity is 12.7 km/sec on the sky relative to the star, or, 12.9 arcsec/hr.
Position angle of asteroid motion is 88.2 degrees
The recommended exposure time corresponds to 7.6 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 30.0 km.
The sky-plane scale is 3539.2 km/arcsec.
Diameter estimates:
44.9 km assuming a 5% albedo, maximum of 3.5 sec for a central chord
18.3 km assuming a 30% albedo, maximum of 1.4 sec for a central chord
Cross-track diameter of 37.7 km used for deployment plan.
Star training set for 54656_00SX362, (2026/11/18 07:47UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.7 +07:24:35 0.4 9.06 113 34Del Ori 05:33:22.9 -00:16:53 2.2 13.18 106 PPM 150472 06:26:42.1 +01:29:04 6.5 0.50 119 PPM 150441 06:25:54.2 +02:00:53 9.4 0.19 119 PPM 150413 06:25:07.1 +02:01:39 10.9 0.18 119 54656_00SX362 06:25:24.4 +01:51:57 16.2 119 Positions are for equinox of date
Star training set for 54656_00SX362, (2026/11/18 07:47UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 9.06 113 34Del Ori 05:32:00.4 -00:17:57 2.2 13.18 106 PPM 150472 06:25:18.5 +01:30:05 6.5 0.50 119 PPM 150441 06:24:30.3 +02:01:52 9.4 0.19 119 PPM 150413 06:23:43.2 +02:02:37 10.9 0.18 119 54656_00SX362 06:24:00.6 +01:52:55 16.2 119 Positions are for J2000