Occultation event with (5648) Axius, event index number 4735
Regions able to see the event: Australia
Geocentric closest approach at 2026/11/17 19:19:08 UTC
J2000 position of star is 05:57:50.9 +29:31:01
Equinox of date position of star is 05:59:33.9 +29:31:04
Star is 120 degrees from the moon. Moon is 53% illuminated.
Stellar brightness G=16.7, apparent brightess of occulting body is G=14.9
Use an exposure time of 1.60 seconds with the standard RECON-QHY system.
SNR of 3.0 per integration for unocculted signal
Expected flux drop is 16% with SNR of 0.5 for the occulted depth (per occulted point)
Apparent velocity is 14.9 km/sec on the sky relative to the star, or, 17.0 arcsec/hr.
Position angle of asteroid motion is 115.3 degrees
The recommended exposure time corresponds to 23.9 km per image.
The 1-sigma error in the time of the event is 0.1 seconds.
The 1-sigma cross-track error in the shadow position is 34.5 km.
The sky-plane scale is 3162.3 km/arcsec.
Diameter estimates:
65.8 km assuming a 5% albedo, maximum of 4.4 sec for a central chord
26.9 km assuming a 30% albedo, maximum of 1.8 sec for a central chord
Cross-track diameter of 59.3 km used for deployment plan.
Star training set for 5648_Axius, (2026/11/17 19:19UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.7 +07:24:35 0.4 22.12 119 Alnath 05:27:59.6 +28:37:39 1.6 6.95 113 PPM 095117 05:58:16.3 +28:56:38 6.5 0.64 120 PPM 095161 06:00:07.2 +29:37:39 8.2 0.16 120 PPM 095158 05:59:57.5 +29:24:44 10.8 0.14 120 5648_Axius 05:59:33.9 +29:31:04 14.9 121 Positions are for equinox of date
Star training set for 5648_Axius, (2026/11/17 19:19UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 22.12 119 Alnath 05:26:17.6 +28:36:22 1.6 6.95 113 PPM 095117 05:56:33.8 +28:56:32 6.5 0.64 120 PPM 095161 05:58:24.1 +29:37:37 8.2 0.16 120 PPM 095158 05:58:14.6 +29:24:42 10.8 0.14 120 5648_Axius 05:57:50.9 +29:31:01 14.9 120 Positions are for J2000