Occultation event with (5648) Axius, event index number 4694
Regions able to see the event: Australia
Geocentric closest approach at 2026/11/14 19:23:16 UTC
J2000 position of star is 05:59:12.0 +29:22:14
Equinox of date position of star is 06:00:54.8 +29:22:14
Star is 157 degrees from the moon. Moon is 26% illuminated.
Stellar brightness G=16.7, apparent brightess of occulting body is G=14.9
Use an exposure time of 1.55 seconds with the standard RECON-QHY system.
SNR of 3.0 per integration for unocculted signal
Expected flux drop is 17% with SNR of 0.5 for the occulted depth (per occulted point)
Apparent velocity is 14.1 km/sec on the sky relative to the star, or, 15.9 arcsec/hr.
Position angle of asteroid motion is 117.6 degrees
The recommended exposure time corresponds to 21.8 km per image.
The 1-sigma error in the time of the event is 0.3 seconds.
The 1-sigma cross-track error in the shadow position is 34.8 km.
The sky-plane scale is 3179.6 km/arcsec.
Diameter estimates:
65.8 km assuming a 5% albedo, maximum of 4.7 sec for a central chord
26.9 km assuming a 30% albedo, maximum of 1.9 sec for a central chord
Cross-track diameter of 59.3 km used for deployment plan.
Star training set for 5648_Axius, (2026/11/14 19:23UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.6 +07:24:35 0.4 21.98 150 Alnath 05:27:59.6 +28:37:39 1.6 7.24 149 PPM 095117 05:58:16.3 +28:56:38 6.5 0.72 156 PPM 095161 06:00:07.1 +29:37:39 8.2 0.31 156 PPM 095208 06:01:54.6 +29:25:07 9.9 0.22 157 PPM 095181 06:00:32.2 +29:10:42 10.2 0.21 157 5648_Axius 06:00:54.8 +29:22:14 14.9 157 Positions are for equinox of date
Star training set for 5648_Axius, (2026/11/14 19:23UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 21.98 150 Alnath 05:26:17.6 +28:36:22 1.6 7.24 149 PPM 095117 05:56:33.8 +28:56:32 6.5 0.72 156 PPM 095161 05:58:24.1 +29:37:37 8.2 0.31 156 PPM 095208 06:00:11.7 +29:25:10 9.9 0.22 157 PPM 095181 05:58:49.5 +29:10:41 10.2 0.21 157 5648_Axius 05:59:12.0 +29:22:14 14.9 157 Positions are for J2000