Occultation event with (11397) 98XX93, event index number 3792
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/06/14 01:52:06 UTC
J2000 position of star is 12:46:29.7 -24:58:20
Equinox of date position of star is 12:47:54.4 -25:06:58
Star is 132 degrees from the moon. Moon is 2% illuminated.
Stellar brightness G=16.5, apparent brightess of occulting body is G=15.9
Use an exposure time of 1.05 seconds with the standard RECON-QHY system.
SNR of 3.0 per integration for unocculted signal
Expected flux drop is 36% with SNR of 1.1 for the occulted depth (per occulted point)
Apparent velocity is 10.5 km/sec on the sky relative to the star, or, 10.3 arcsec/hr.
Position angle of asteroid motion is 13.4 degrees
The recommended exposure time corresponds to 11.0 km per image.
The 1-sigma error in the time of the event is 3.0 seconds.
The 1-sigma cross-track error in the shadow position is 16.3 km.
The sky-plane scale is 3656.4 km/arcsec.
Diameter estimates:
54.5 km assuming a 5% albedo, maximum of 5.2 sec for a central chord
22.2 km assuming a 30% albedo, maximum of 2.1 sec for a central chord
Cross-track diameter of 45.4 km used for deployment plan.
Star training set for 11397_98XX93, (2026/06/14 01:52UT) Object RA Dec mag sep mel Spica 13:26:35.4 -11:17:55 1.0 16.58 136 9Bet Crv 12:35:46.9 -23:32:34 2.6 3.18 129 PPM 260710 12:44:37.6 -25:08:06 6.5 0.74 131 PPM 260769 12:47:09.1 -25:07:15 8.2 0.17 132 11397_98XX93 12:47:54.4 -25:06:58 15.9 132 Positions are for equinox of date
Star training set for 11397_98XX93, (2026/06/14 01:52UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 16.58 136 9Bet Crv 12:34:23.2 -23:23:50 2.6 3.18 129 PPM 260710 12:43:13.1 -24:59:26 6.5 0.74 131 PPM 260769 12:45:44.5 -24:58:36 8.2 0.17 132 11397_98XX93 12:46:29.7 -24:58:20 15.9 132 Positions are for J2000