Occultation event with (16070) Charops, event index number 1145
Regions able to see the event: Europe
Geocentric closest approach at 2025/07/16 03:29:01 UTC
J2000 position of star is 03:55:08.0 +34:00:24
Equinox of date position of star is 03:56:46.2 +34:04:48
Star is 65 degrees from the moon. Moon is 71% illuminated.
Stellar brightness G=14.8, apparent brightess of occulting body is G=15.7
Use an exposure time of 0.50 seconds with the standard RECON-QHY system.
SNR of 7.9 per integration for unocculted signal
Expected flux drop is 70% with SNR of 5.6 for the occulted depth (per occulted point)
Apparent velocity is 31.0 km/sec on the sky relative to the star, or, 25.8 arcsec/hr.
The recommended exposure time corresponds to 15.5 km per image.
The 1-sigma error in the time of the event is 1.4 seconds.
The 1-sigma cross-track error in the shadow position is 18.2 km.
The sky-plane scale is 4335.1 km/arcsec.
Diameter estimates:
66.4 km assuming a 5% albedo, aximum of 2.1 sec for a central chord
27.1 km assuming a 30% albedo, maximum of 0.9 sec for a central chord
Cross-track diameter of 66.4 km used for deployment plan.
Star training set for 16070_Charops, (2025/07/16 03:29UT) Object RA Dec mag sep mel Aldebaran 04:37:23.3 +16:33:31 0.8 19.75 71 44Zet Per 03:55:44.6 +31:57:26 2.8 2.13 64 PPM 068848 03:53:32.1 +34:26:03 5.6 0.76 64 PPM 068856 03:53:57.2 +34:17:49 7.5 0.62 64 PPM 068925 03:58:17.3 +34:13:39 8.7 0.35 65 PPM 068897 03:56:00.4 +33:59:49 10.5 0.18 65 16070_Charops 03:56:46.2 +34:04:48 15.7 65 Positions are for equinox of date
Star training set for 16070_Charops, (2025/07/16 03:29UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 19.75 71 44Zet Per 03:54:07.9 +31:53:01 2.8 2.13 64 PPM 068848 03:51:53.7 +34:21:34 5.6 0.76 64 PPM 068856 03:52:18.9 +34:13:20 7.5 0.62 64 PPM 068925 03:56:38.8 +34:09:18 8.7 0.35 65 PPM 068897 03:54:22.3 +33:55:24 10.5 0.18 65 16070_Charops 03:55:08.0 +34:00:24 15.7 65 Positions are for J2000