Occultation event with (11395) Iphinous, event index number 3503
Regions able to see the event: SAmericaS
Geocentric closest approach at 2026/03/26 06:46:12 UTC
J2000 position of star is 10:42:09.2 -13:41:56
Equinox of date position of star is 10:43:27.1 -13:50:12
Star is 69 degrees from the moon. Moon is 56% illuminated.
Stellar brightness G=15.8, apparent brightess of occulting body is G=15.2
Use an exposure time of 0.95 seconds with the standard RECON-QHY system.
SNR of 4.8 per integration for unocculted signal
Expected flux drop is 36% with SNR of 1.7 for the occulted depth (per occulted point)
Apparent velocity is 18.1 km/sec on the sky relative to the star, or, 19.3 arcsec/hr.
Position angle of asteroid motion is 134.4 degrees
The recommended exposure time corresponds to 17.2 km per image.
The 1-sigma error in the time of the event is 1.4 seconds.
The 1-sigma cross-track error in the shadow position is 19.9 km.
The sky-plane scale is 3364.6 km/arcsec.
Diameter estimates:
62.0 km assuming a 5% albedo, maximum of 3.4 sec for a central chord
25.3 km assuming a 30% albedo, maximum of 1.4 sec for a central chord
Cross-track diameter of 69.0 km used for deployment plan.
Star training set for 11395_Iphinous, (2026/03/26 06:46UT) Object RA Dec mag sep mel Regulus 10:09:46.0 +11:50:17 1.3 27.00 48 Alphard 09:28:52.6 -08:46:25 2.0 18.96 52 PPM 223341 10:43:49.1 -14:06:44 6.0 0.29 69 PPM 223334 10:43:31.5 -13:55:36 7.0 0.09 69 11395_Iphinous 10:43:27.1 -13:50:12 15.2 69 Positions are for equinox of date
Star training set for 11395_Iphinous, (2026/03/26 06:46UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 27.00 48 Alphard 09:27:35.2 -08:39:30 2.0 18.96 52 PPM 223341 10:42:31.3 -13:58:28 6.0 0.29 69 PPM 223334 10:42:13.7 -13:47:20 7.0 0.09 69 11395_Iphinous 10:42:09.2 -13:41:56 15.2 69 Positions are for J2000