Occultation event with (5648) Axius, event index number 4739
Regions able to see the event: Europe
Geocentric closest approach at 2026/11/17 21:25:58 UTC
J2000 position of star is 05:57:48.4 +29:31:15
Equinox of date position of star is 05:59:31.4 +29:31:18
Star is 119 degrees from the moon. Moon is 54% illuminated.
Stellar brightness G=14.9, apparent brightess of occulting body is G=14.9
Use an exposure time of 0.95 seconds with the standard RECON-QHY system.
SNR of 9.9 per integration for unocculted signal
Expected flux drop is 49% with SNR of 4.8 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 14.2 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 34.3 km.
The sky-plane scale is 3161.9 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 21:26UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.7 +07:24:35 0.4 22.12 118 Alnath 05:27:59.6 +28:37:39 1.6 6.95 112 PPM 095117 05:58:16.3 +28:56:38 6.5 0.64 119 PPM 095161 06:00:07.2 +29:37:39 8.2 0.17 119 PPM 095158 05:59:57.5 +29:24:44 10.8 0.14 119 5648_Axius 05:59:31.4 +29:31:18 14.9 120 Positions are for equinox of date
Star training set for 5648_Axius, (2026/11/17 21:26UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 22.12 118 Alnath 05:26:17.6 +28:36:22 1.6 6.95 112 PPM 095117 05:56:33.8 +28:56:32 6.5 0.64 119 PPM 095161 05:58:24.1 +29:37:37 8.2 0.17 119 PPM 095158 05:58:14.6 +29:24:42 10.8 0.14 119 5648_Axius 05:57:48.4 +29:31:15 14.9 119 Positions are for J2000