Occultation event with (11395) Iphinous, event index number 3393
Regions able to see the event: SAfrica
Geocentric closest approach at 2026/03/10 23:43:25 UTC
J2000 position of star is 10:48:37.6 -14:59:09
Equinox of date position of star is 10:49:55.2 -15:07:29
Star is 85 degrees from the moon. Moon is 54% illuminated.
Stellar brightness G=14.1, apparent brightess of occulting body is G=15.1
Use an exposure time of 0.30 seconds with the standard RECON-QHY system.
SNR of 9.2 per integration for unocculted signal
Expected flux drop is 72% with SNR of 6.6 for the occulted depth (per occulted point)
Apparent velocity is 18.6 km/sec on the sky relative to the star, or, 20.1 arcsec/hr.
Position angle of asteroid motion is 124.8 degrees
The recommended exposure time corresponds to 5.6 km per image.
The 1-sigma error in the time of the event is 1.2 seconds.
The 1-sigma cross-track error in the shadow position is 24.4 km.
The sky-plane scale is 3344.1 km/arcsec.
Diameter estimates:
62.0 km assuming a 5% albedo, maximum of 3.3 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, (2026/03/10 23:43UT) Object RA Dec mag sep mel Regulus 10:09:45.8 +11:50:17 1.3 28.74 106 Alphard 09:28:52.5 -08:46:24 2.0 20.80 105 Nu Hya 10:50:55.1 -16:19:53 3.1 1.23 84 PPM 223501 10:50:24.1 -15:18:14 8.0 0.21 85 PPM 223481 10:49:21.7 -15:05:57 8.6 0.14 85 11395_Iphinous 10:49:55.2 -15:07:29 15.1 84 Positions are for equinox of date
Star training set for 11395_Iphinous, (2026/03/10 23:43UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 28.74 106 Alphard 09:27:35.2 -08:39:30 2.0 20.80 105 Nu Hya 10:49:37.7 -16:11:32 3.1 1.23 84 PPM 223501 10:49:06.5 -15:09:53 8.0 0.21 85 PPM 223481 10:48:04.1 -14:57:38 8.6 0.14 85 11395_Iphinous 10:48:37.6 -14:59:09 15.1 85 Positions are for J2000