Occultation event with (7152) Euneus, event index number 855
Regions able to see the event: Europe
Geocentric closest approach at 2025/03/26 00:06:44 UTC
J2000 position of star is 09:44:19.0 +16:24:55
Equinox of date position of star is 09:45:42.0 +16:17:54
Star is 176 degrees from the moon. Moon is 16% illuminated.
Stellar brightness G=14.6, apparent brightess of occulting body is G=15.5
Use an exposure time of 0.55 seconds with the standard RECON-QHY system.
Expected flux drop is 30% with SNR of 10.0 per integration
Apparent velocity is 9.3 km/sec on the sky relative to the star, or, 10.6 arcsec/hr.
The recommended exposure time corresponds to 5.1 km per image.
The 1-sigma error in the time of the event is 4.1 seconds.
The 1-sigma cross-track error in the shadow position is 24.7 km.
The sky-plane scale is 3155.5 km/arcsec.
Diameter estimates:
51.3 km assuming a 5% albedo, aximum of 5.5 sec for a central chord
20.9 km assuming a 30% albedo, maximum of 2.3 sec for a central chord
Cross-track diameter of 51.3 km used for deployment plan.
Star training set for 7152_Euneus, (2025/03/26 00:07UT) Object RA Dec mag sep mel Regulus 10:09:42.8 +11:50:34 1.3 7.33 168 16Psi Leo 09:45:06.2 +13:54:18 5.3 2.40 174 PPM 126714 09:43:42.2 +16:57:57 7.9 0.82 176 PPM 126751 09:45:57.3 +16:17:48 8.7 0.06 176 7152_Euneus 09:45:42.0 +16:17:54 15.5 175 Positions are for equinox of date
Star training set for 7152_Euneus, (2025/03/26 00:07UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 7.33 168 16Psi Leo 09:43:43.9 +14:01:18 5.3 2.40 174 PPM 126714 09:42:18.8 +17:04:55 7.9 0.82 176 PPM 126751 09:44:34.3 +16:24:49 8.7 0.06 176 7152_Euneus 09:44:19.0 +16:24:55 15.5 176 Positions are for J2000