Occultation event with (7152) Euneus, event index number 3533
Regions able to see the event: SAmericaN,SAfrica
Geocentric closest approach at 2026/03/29 00:07:29 UTC
J2000 position of star is 12:02:33.9 +04:19:03
Equinox of date position of star is 12:03:54.5 +04:10:17
Star is 40 degrees from the moon. Moon is 83% illuminated.
Stellar brightness G=16.4, apparent brightess of occulting body is G=15.1
Use an exposure time of 1.05 seconds with the standard RECON-QHY system.
SNR of 3.1 per integration for unocculted signal
Expected flux drop is 23% with SNR of 0.7 for the occulted depth (per occulted point)
Apparent velocity is 16.8 km/sec on the sky relative to the star, or, 19.3 arcsec/hr.
Position angle of asteroid motion is 113.6 degrees
The recommended exposure time corresponds to 17.6 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 25.8 km.
The sky-plane scale is 3130.7 km/arcsec.
Diameter estimates:
51.8 km assuming a 5% albedo, maximum of 3.1 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, (2026/03/29 00:07UT) Object RA Dec mag sep mel Spica 13:26:34.8 -11:17:51 1.0 25.73 65 Denebola 11:50:23.8 +14:25:31 2.1 10.78 34 7 Vir 12:01:17.6 +03:30:33 5.4 0.93 39 PPM 158478 12:05:39.5 +04:47:08 8.4 0.75 40 PPM 158451 12:04:14.0 +03:59:59 8.9 0.19 40 7152_Euneus 12:03:54.5 +04:10:17 15.1 40 Positions are for equinox of date
Star training set for 7152_Euneus, (2026/03/29 00:07UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 25.73 65 Denebola 11:49:02.7 +14:34:16 2.1 10.78 34 7 Vir 11:59:56.9 +03:39:18 5.4 0.93 39 PPM 158478 12:04:18.9 +04:55:53 8.4 0.75 40 PPM 158451 12:02:53.4 +04:08:45 8.9 0.19 40 7152_Euneus 12:02:33.9 +04:19:03 15.1 40 Positions are for J2000