Occultation event with (16070) Charops, event index number 1119
Regions able to see the event: Europe
Geocentric closest approach at 2025/07/09 02:04:03 UTC
J2000 position of star is 03:49:26.1 +33:37:10
Equinox of date position of star is 03:51:03.7 +33:41:44
Star is 155 degrees from the moon. Moon is 97% illuminated.
Stellar brightness G=14.3, apparent brightess of occulting body is G=15.7
Use an exposure time of 0.40 seconds with the standard RECON-QHY system.
SNR of 9.6 per integration for unocculted signal
Expected flux drop is 78% with SNR of 7.5 for the occulted depth (per occulted point)
Apparent velocity is 33.1 km/sec on the sky relative to the star, or, 27.1 arcsec/hr.
The recommended exposure time corresponds to 13.2 km per image.
The 1-sigma error in the time of the event is 1.3 seconds.
The 1-sigma cross-track error in the shadow position is 18.3 km.
The sky-plane scale is 4387.3 km/arcsec.
Diameter estimates:
66.4 km assuming a 5% albedo, aximum of 2.0 sec for a central chord
27.1 km assuming a 30% albedo, maximum of 0.8 sec for a central chord
Cross-track diameter of 66.4 km used for deployment plan.
Star training set for 16070_Charops, (2025/07/09 02:04UT) Object RA Dec mag sep mel Aldebaran 04:37:23.3 +16:33:31 0.8 20.05 160 44Zet Per 03:55:44.6 +31:57:26 2.8 2.00 156 PPM 068781 03:49:30.2 +33:40:38 6.2 0.32 155 PPM 068805 03:50:56.7 +33:40:26 10.4 0.03 155 16070_Charops 03:51:03.7 +33:41:44 15.7 155 Positions are for equinox of date
Star training set for 16070_Charops, (2025/07/09 02:04UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 20.05 160 44Zet Per 03:54:07.9 +31:53:01 2.8 2.00 156 PPM 068781 03:47:52.6 +33:36:01 6.2 0.32 155 PPM 068805 03:49:19.1 +33:35:52 10.4 0.03 155 16070_Charops 03:49:26.1 +33:37:10 15.7 155 Positions are for J2000