Occultation event with (6545) Leitus, event index number 3103
Regions able to see the event: SAmericaS
Geocentric closest approach at 2026/01/03 08:23:37 UTC
J2000 position of star is 13:07:00.5 -19:50:33
Equinox of date position of star is 13:08:24.1 -19:58:51
Star is 102 degrees from the moon. Moon is 100% illuminated.
Stellar brightness G=16.5, apparent brightess of occulting body is G=16.0
Use an exposure time of 1.00 seconds with the standard RECON-QHY system.
SNR of 3.1 per integration for unocculted signal
Expected flux drop is 38% with SNR of 1.2 for the occulted depth (per occulted point)
Apparent velocity is 18.7 km/sec on the sky relative to the star, or, 17.2 arcsec/hr.
Position angle of asteroid motion is 129.6 degrees
The recommended exposure time corresponds to 18.7 km per image.
The 1-sigma error in the time of the event is 1.6 seconds.
The 1-sigma cross-track error in the shadow position is 17.9 km.
The sky-plane scale is 3915.6 km/arcsec.
Diameter estimates:
55.0 km assuming a 5% albedo, maximum of 2.9 sec for a central chord
22.4 km assuming a 30% albedo, maximum of 1.2 sec for a central chord
Cross-track diameter of 51.0 km used for deployment plan.
Star training set for 6545_Leitus, (2026/01/03 08:24UT) Object RA Dec mag sep mel Spica 13:26:34.0 -11:17:46 1.0 9.72 102 9Bet Crv 12:35:45.5 -23:32:25 2.6 8.37 96 PPM 261160 13:05:10.0 -20:43:21 5.5 1.06 101 PPM 261214 13:07:48.4 -20:11:50 8.5 0.26 102 PPM 226834 13:09:17.0 -19:59:11 9.2 0.21 102 6545_Leitus 13:08:24.1 -19:58:51 16.0 102 Positions are for equinox of date
Star training set for 6545_Leitus, (2026/01/03 08:24UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 9.72 102 9Bet Crv 12:34:23.2 -23:23:50 2.6 8.37 96 PPM 261160 13:03:46.4 -20:35:00 5.5 1.06 101 PPM 261214 13:06:24.8 -20:03:31 8.5 0.26 102 PPM 226834 13:07:53.3 -19:50:53 9.2 0.21 102 6545_Leitus 13:07:00.5 -19:50:33 16.0 102 Positions are for J2000