Occultation event with (5648) Axius, event index number 4646
Regions able to see the event: Europe
Geocentric closest approach at 2026/11/11 20:37:36 UTC
J2000 position of star is 06:00:24.9 +29:13:28
Equinox of date position of star is 06:02:07.6 +29:13:25
Star is 168 degrees from the moon. Moon is 6% illuminated.
Stellar brightness G=16.3, apparent brightess of occulting body is G=15.0
Use an exposure time of 1.10 seconds with the standard RECON-QHY system.
SNR of 3.4 per integration for unocculted signal
Expected flux drop is 22% with SNR of 0.7 for the occulted depth (per occulted point)
Apparent velocity is 13.2 km/sec on the sky relative to the star, or, 14.9 arcsec/hr.
Position angle of asteroid motion is 120.2 degrees
The recommended exposure time corresponds to 14.5 km per image.
The 1-sigma error in the time of the event is 0.4 seconds.
The 1-sigma cross-track error in the shadow position is 35.2 km.
The sky-plane scale is 3198.2 km/arcsec.
Diameter estimates:
65.8 km assuming a 5% albedo, maximum of 5.0 sec for a central chord
26.9 km assuming a 30% albedo, maximum of 2.0 sec for a central chord
Cross-track diameter of 59.3 km used for deployment plan.
Star training set for 5648_Axius, (2026/11/11 20:38UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.6 +07:24:35 0.4 21.85 157 Alnath 05:27:59.5 +28:37:39 1.6 7.49 176 PPM 095117 05:58:16.2 +28:56:38 6.5 0.89 169 PPM 095222 06:02:19.5 +29:00:14 7.9 0.22 168 PPM 095208 06:01:54.5 +29:25:07 9.9 0.20 168 PPM 095224 06:02:24.4 +29:16:17 10.8 0.08 168 5648_Axius 06:02:07.6 +29:13:25 15.0 168 Positions are for equinox of date
Star training set for 5648_Axius, (2026/11/11 20:38UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 21.85 157 Alnath 05:26:17.6 +28:36:22 1.6 7.49 176 PPM 095117 05:56:33.8 +28:56:32 6.5 0.89 169 PPM 095222 06:00:37.0 +29:00:18 7.9 0.22 168 PPM 095208 06:00:11.7 +29:25:10 9.9 0.20 168 PPM 095224 06:00:41.7 +29:16:20 10.8 0.08 168 5648_Axius 06:00:24.9 +29:13:28 15.0 168 Positions are for J2000