Occultation event with (6545) Leitus, event index number 3349
Regions able to see the event: SAmericaN,SAfrica
Geocentric closest approach at 2026/03/05 00:41:27 UTC
J2000 position of star is 13:08:09.4 -22:16:10
Equinox of date position of star is 13:09:34.1 -22:24:31
Star is 24 degrees from the moon. Moon is 97% illuminated.
Stellar brightness G=15.3, apparent brightess of occulting body is G=15.5
Use an exposure time of 1.15 seconds with the standard RECON-QHY system.
SNR of 8.6 per integration for unocculted signal
Expected flux drop is 53% with SNR of 4.6 for the occulted depth (per occulted point)
Apparent velocity is 10.9 km/sec on the sky relative to the star, or, 11.8 arcsec/hr.
Position angle of asteroid motion is 91.9 degrees
The recommended exposure time corresponds to 12.5 km per image.
The 1-sigma error in the time of the event is 1.2 seconds.
The 1-sigma cross-track error in the shadow position is 32.9 km.
The sky-plane scale is 3303.8 km/arcsec.
Diameter estimates:
55.0 km assuming a 5% albedo, maximum of 5.1 sec for a central chord
22.4 km assuming a 30% albedo, maximum of 2.1 sec for a central chord
Cross-track diameter of 51.0 km used for deployment plan.
Star training set for 6545_Leitus, (2026/03/05 00:41UT) Object RA Dec mag sep mel Spica 13:26:34.5 -11:17:50 1.0 11.83 21 9Bet Crv 12:35:46.0 -23:32:28 2.6 7.86 21 45Psi Hya 13:10:28.2 -23:15:26 4.9 0.87 25 PPM 261274 13:11:07.7 -22:20:02 7.6 0.37 24 PPM 261231 13:08:35.0 -22:08:18 9.5 0.35 24 6545_Leitus 13:09:34.1 -22:24:31 15.5 24 Positions are for equinox of date
Star training set for 6545_Leitus, (2026/03/05 00:41UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 11.83 21 9Bet Crv 12:34:23.2 -23:23:50 2.6 7.86 21 45Psi Hya 13:09:03.2 -23:07:06 4.9 0.87 25 PPM 261274 13:09:42.9 -22:11:42 7.6 0.37 24 PPM 261231 13:07:10.4 -21:59:57 9.5 0.35 24 6545_Leitus 13:08:09.4 -22:16:10 15.5 24 Positions are for J2000