Occultation event with (7152) Euneus, event index number 3371
Regions able to see the event: SAfrica
Geocentric closest approach at 2026/03/07 23:44:59 UTC
J2000 position of star is 12:12:29.4 +03:09:49
Equinox of date position of star is 12:13:49.8 +03:01:05
Star is 39 degrees from the moon. Moon is 80% illuminated.
Stellar brightness G=14.1, apparent brightess of occulting body is G=15.2
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 74% with SNR of 6.8 for the occulted depth (per occulted point)
Apparent velocity is 16.2 km/sec on the sky relative to the star, or, 18.6 arcsec/hr.
Position angle of asteroid motion is 116.5 degrees
The recommended exposure time corresponds to 4.9 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 23.5 km.
The sky-plane scale is 3139.8 km/arcsec.
Diameter estimates:
51.8 km assuming a 5% albedo, maximum of 3.2 sec for a central chord
21.1 km assuming a 30% albedo, maximum of 1.3 sec for a central chord
Cross-track diameter of 39.8 km used for deployment plan.
Star training set for 7152_Euneus, (2026/03/07 23:45UT) Object RA Dec mag sep mel Spica 13:26:34.6 -11:17:50 1.0 23.07 16 Denebola 11:50:23.6 +14:25:32 2.1 12.79 51 10 Vir 12:11:01.8 +01:45:04 5.9 1.45 39 PPM 158610 12:13:50.1 +03:15:32 8.1 0.24 40 PPM 158600 12:13:06.8 +02:58:43 10.0 0.18 40 7152_Euneus 12:13:49.8 +03:01:05 15.2 39 Positions are for equinox of date
Star training set for 7152_Euneus, (2026/03/07 23:45UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 23.07 16 Denebola 11:49:02.7 +14:34:16 2.1 12.79 51 10 Vir 12:09:41.4 +01:53:48 5.9 1.45 39 PPM 158610 12:12:29.8 +03:24:15 8.1 0.24 40 PPM 158600 12:11:46.4 +03:07:27 10.0 0.18 40 7152_Euneus 12:12:29.4 +03:09:49 15.2 39 Positions are for J2000