Occultation event with (6545) Leitus, event index number 3449
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/03/17 01:38:37 UTC
J2000 position of star is 13:03:24.0 -22:07:07
Equinox of date position of star is 13:04:48.5 -22:15:32
Star is 127 degrees from the moon. Moon is 5% illuminated.
Stellar brightness G=14.5, apparent brightess of occulting body is G=15.3
Use an exposure time of 0.50 seconds with the standard RECON-QHY system.
SNR of 9.4 per integration for unocculted signal
Expected flux drop is 68% with SNR of 6.4 for the occulted depth (per occulted point)
Apparent velocity is 14.1 km/sec on the sky relative to the star, or, 15.8 arcsec/hr.
Position angle of asteroid motion is 102.3 degrees
The recommended exposure time corresponds to 7.1 km per image.
The 1-sigma error in the time of the event is 1.3 seconds.
The 1-sigma cross-track error in the shadow position is 30.0 km.
The sky-plane scale is 3229.8 km/arcsec.
Diameter estimates:
55.0 km assuming a 5% albedo, maximum of 3.9 sec for a central chord
22.4 km assuming a 30% albedo, maximum of 1.6 sec for a central chord
Cross-track diameter of 51.0 km used for deployment plan.
Star training set for 6545_Leitus, (2026/03/17 01:39UT) Object RA Dec mag sep mel Spica 13:26:34.7 -11:17:50 1.0 12.13 127 9Bet Crv 12:35:46.2 -23:32:29 2.6 6.81 131 PPM 261041 12:58:57.3 -22:53:41 6.0 1.49 127 PPM 261192 13:07:00.5 -22:12:41 7.6 0.51 126 PPM 261128 13:03:32.1 -22:32:50 9.3 0.41 127 6545_Leitus 13:04:48.5 -22:15:32 15.3 126 Positions are for equinox of date
Star training set for 6545_Leitus, (2026/03/17 01:39UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 12.13 127 9Bet Crv 12:34:23.2 -23:23:50 2.6 6.81 131 PPM 261041 12:57:33.0 -22:45:13 6.0 1.49 127 PPM 261192 13:05:35.8 -22:04:18 7.6 0.51 126 PPM 261128 13:02:07.6 -22:24:25 9.3 0.41 127 6545_Leitus 13:03:24.0 -22:07:07 15.3 127 Positions are for J2000