Occultation event with (4060) Deipylos, event index number 750
Regions able to see the event: Europe
Geocentric closest approach at 2025/03/03 20:04:19 UTC
J2000 position of star is 08:42:50.1 +07:31:10
Equinox of date position of star is 08:44:10.9 +07:25:40
Star is 96 degrees from the moon. Moon is 20% illuminated.
Stellar brightness G=14.2, apparent brightess of occulting body is G=13.8
Use an exposure time of 0.45 seconds with the standard RECON-QHY system.
Expected flux drop is 59% with SNR of 9.9 per integration
Apparent velocity is 12.6 km/sec on the sky relative to the star, or, 17.4 arcsec/hr.
The recommended exposure time corresponds to 5.7 km per image.
The 1-sigma error in the time of the event is 2.5 seconds.
The 1-sigma cross-track error in the shadow position is 34.6 km.
The sky-plane scale is 2600.6 km/arcsec.
Diameter estimates:
78.7 km assuming a 5% albedo, aximum of 6.3 sec for a central chord
32.1 km assuming a 30% albedo, maximum of 2.6 sec for a central chord
Cross-track diameter of 78.7 km used for deployment plan.
Star training set for 4060_Deipylos, (2025/03/03 20:04UT) Object RA Dec mag sep mel Regulus 10:09:42.6 +11:50:36 1.3 21.53 114 Alphard 09:28:49.5 -08:46:08 2.0 19.65 111 13Rho Hya 08:49:45.9 +05:44:35 4.3 2.18 98 PPM 154925 08:45:50.7 +07:59:12 8.5 0.69 96 PPM 154879 08:44:15.2 +07:14:32 9.4 0.19 96 4060_Deipylos 08:44:10.9 +07:25:40 13.8 96 Positions are for equinox of date
Star training set for 4060_Deipylos, (2025/03/03 20:04UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 21.53 114 Alphard 09:27:35.2 -08:39:30 2.0 19.65 111 13Rho Hya 08:48:25.9 +05:50:15 4.3 2.18 98 PPM 154925 08:44:29.7 +08:04:45 8.5 0.69 96 PPM 154879 08:42:54.6 +07:20:03 9.4 0.19 96 4060_Deipylos 08:42:50.1 +07:31:10 13.8 96 Positions are for J2000