Occultation event with (5119) Imbrius, event index number 587
Regions able to see the event: Europe
Geocentric closest approach at 2025/02/05 19:32:05 UTC
J2000 position of star is 00:37:05.8 +19:00:45
Equinox of date position of star is 00:38:24.9 +19:09:01
Star is 38 degrees from the moon. Moon is 56% illuminated.
Stellar brightness G=14.8, apparent brightess of occulting body is G=15.8
Use an exposure time of 0.40 seconds with the standard RECON-QHY system.
Expected flux drop is 27% with SNR of 6.9 per integration
Apparent velocity is 29.4 km/sec on the sky relative to the star, or, 27.9 arcsec/hr.
The recommended exposure time corresponds to 11.8 km per image.
The 1-sigma error in the time of the event is 1.7 seconds.
The 1-sigma cross-track error in the shadow position is 34.2 km.
The sky-plane scale is 3793.9 km/arcsec.
Diameter estimates:
51.3 km assuming a 5% albedo, aximum of 1.7 sec for a central chord
20.9 km assuming a 30% albedo, maximum of 0.7 sec for a central chord
Cross-track diameter of 51.3 km used for deployment plan.
Star training set for 5119_Imbrius, (2025/02/05 19:32UT) Object RA Dec mag sep mel Deneb 20:42:17.3 +45:22:16 1.3 54.90 80 Algenib 00:14:31.9 +15:19:23 2.8 6.87 45 52 Psc 00:33:54.7 +20:25:56 5.4 1.66 39 PPM 116586 00:35:46.1 +19:13:17 8.4 0.63 39 PPM 116642 00:39:10.4 +19:02:18 9.0 0.21 38 5119_Imbrius 00:38:24.9 +19:09:01 15.8 38 Positions are for equinox of date
Star training set for 5119_Imbrius, (2025/02/05 19:32UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 54.90 80 Algenib 00:13:14.2 +15:11:00 2.8 6.87 45 52 Psc 00:32:35.7 +20:17:38 5.4 1.66 39 PPM 116586 00:34:27.1 +19:05:00 8.4 0.63 39 PPM 116642 00:37:51.3 +18:54:02 9.0 0.21 38 5119_Imbrius 00:37:05.8 +19:00:45 15.8 38 Positions are for J2000