Occultation event with (11395) Iphinous, event index number 3775
Regions able to see the event: Australia
Geocentric closest approach at 2026/06/01 08:55:57 UTC
J2000 position of star is 10:39:25.9 -08:32:12
Equinox of date position of star is 10:40:45.3 -08:40:29
Star is 96 degrees from the moon. Moon is 99% illuminated.
Stellar brightness G=14.0, apparent brightess of occulting body is G=15.8
Use an exposure time of 0.25 seconds with the standard RECON-QHY system.
SNR of 9.1 per integration for unocculted signal
Expected flux drop is 84% with SNR of 7.7 for the occulted depth (per occulted point)
Apparent velocity is 14.5 km/sec on the sky relative to the star, or, 13.4 arcsec/hr.
Position angle of asteroid motion is 61.7 degrees
The recommended exposure time corresponds to 3.6 km per image.
The 1-sigma error in the time of the event is 0.8 seconds.
The 1-sigma cross-track error in the shadow position is 30.1 km.
The sky-plane scale is 3897.1 km/arcsec.
Diameter estimates:
62.0 km assuming a 5% albedo, maximum of 4.3 sec for a central chord
25.3 km assuming a 30% albedo, maximum of 1.7 sec for a central chord
Cross-track diameter of 69.0 km used for deployment plan.
Star training set for 11395_Iphinous, (2026/06/01 08:56UT) Object RA Dec mag sep mel Regulus 10:09:46.6 +11:50:13 1.3 21.91 112 Alphard 09:28:53.1 -08:46:28 2.0 17.76 111 PPM 193503 10:32:18.1 -07:46:26 6.2 2.28 98 PPM 193646 10:40:10.1 -08:21:46 8.3 0.34 96 PPM 193660 10:40:49.2 -08:45:38 9.3 0.09 96 11395_Iphinous 10:40:45.3 -08:40:29 15.8 95 Positions are for equinox of date
Star training set for 11395_Iphinous, (2026/06/01 08:56UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 21.91 112 Alphard 09:27:35.2 -08:39:30 2.0 17.76 111 PPM 193503 10:30:58.7 -07:38:15 6.2 2.28 98 PPM 193646 10:38:50.6 -08:13:29 8.3 0.34 96 PPM 193660 10:39:29.8 -08:37:20 9.3 0.09 96 11395_Iphinous 10:39:25.9 -08:32:12 15.8 96 Positions are for J2000