Occultation event with (5648) Axius, event index number 4908
Regions able to see the event: Europe
Geocentric closest approach at 2026/11/27 23:28:31 UTC
J2000 position of star is 05:52:28.9 +29:59:24
Equinox of date position of star is 05:54:12.4 +29:59:40
Star is 25 degrees from the moon. Moon is 84% illuminated.
Stellar brightness G=15.7, apparent brightess of occulting body is G=14.8
Use an exposure time of 0.85 seconds with the standard RECON-QHY system.
SNR of 4.8 per integration for unocculted signal
Expected flux drop is 29% with SNR of 1.4 for the occulted depth (per occulted point)
Apparent velocity is 17.3 km/sec on the sky relative to the star, or, 20.0 arcsec/hr.
Position angle of asteroid motion is 109.5 degrees
The recommended exposure time corresponds to 14.7 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 35.4 km.
The sky-plane scale is 3116.4 km/arcsec.
Diameter estimates:
65.8 km assuming a 5% albedo, maximum of 3.8 sec for a central chord
26.9 km assuming a 30% albedo, maximum of 1.6 sec for a central chord
Cross-track diameter of 59.3 km used for deployment plan.
Star training set for 5648_Axius, (2026/11/27 23:29UT) Object RA Dec mag sep mel Aldebaran 04:37:28.1 +16:33:40 0.8 22.10 44 Alnath 05:27:59.7 +28:37:39 1.6 5.87 30 PPM 095117 05:58:16.4 +28:56:38 6.5 1.37 24 PPM 070931 05:53:27.8 +30:57:44 7.7 0.98 25 PPM 094994 05:53:54.2 +29:55:16 9.3 0.10 25 PPM 070944 05:54:01.8 +30:03:37 11.1 0.08 25 5648_Axius 05:54:12.4 +29:59:40 14.8 24 Positions are for equinox of date
Star training set for 5648_Axius, (2026/11/27 23:29UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 22.10 44 Alnath 05:26:17.6 +28:36:22 1.6 5.87 30 PPM 095117 05:56:33.8 +28:56:32 6.5 1.37 24 PPM 070931 05:51:43.5 +30:57:26 7.7 0.98 25 PPM 094994 05:52:10.8 +29:54:59 9.3 0.10 25 PPM 070944 05:52:18.3 +30:03:21 11.1 0.08 25 5648_Axius 05:52:28.9 +29:59:24 14.8 25 Positions are for J2000