Occultation event with (5023) Agapenor, event index number 3321
Regions able to see the event: NMexico,SMexico
Geocentric closest approach at 2026/02/27 09:56:16 UTC
J2000 position of star is 10:55:48.6 -02:32:59
Equinox of date position of star is 10:57:08.6 -02:41:23
Star is 60 degrees from the moon. Moon is 81% illuminated.
Stellar brightness G=12.8, apparent brightess of occulting body is G=15.3
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 12.2 per integration for unocculted signal
Expected flux drop is 90% with SNR of 11.0 for the occulted depth (per occulted point)
Apparent velocity is 17.4 km/sec on the sky relative to the star, or, 19.9 arcsec/hr.
Position angle of asteroid motion is 103.8 degrees
The recommended exposure time corresponds to 2.1 km per image.
The 1-sigma error in the time of the event is 1.4 seconds.
The 1-sigma cross-track error in the shadow position is 24.1 km.
The sky-plane scale is 3149.6 km/arcsec.
Diameter estimates:
49.4 km assuming a 5% albedo, maximum of 2.8 sec for a central chord
20.2 km assuming a 30% albedo, maximum of 1.2 sec for a central chord
Cross-track diameter of 27.9 km used for deployment plan.
Star training set for 5023_Agapenor, (2026/02/27 09:56UT) Object RA Dec mag sep mel Regulus 10:09:45.7 +11:50:18 1.3 18.70 43 PPM 178324 10:55:03.6 -02:16:08 6.3 0.67 60 PPM 178334 10:57:18.6 -03:02:01 8.7 0.35 61 PPM 178343 10:58:21.9 -02:41:58 10.5 0.31 61 5023_Agapenor 10:57:08.6 -02:41:23 15.3 61 Positions are for equinox of date
Star training set for 5023_Agapenor, (2026/02/27 09:56UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 18.70 43 PPM 178324 10:53:43.5 -02:07:45 6.3 0.67 60 PPM 178334 10:55:58.7 -02:53:36 8.7 0.35 61 PPM 178343 10:57:01.9 -02:33:33 10.5 0.31 61 5023_Agapenor 10:55:48.6 -02:32:59 15.3 60 Positions are for J2000