Occultation event with (16070) Charops, event index number 3973
Regions able to see the event: Europe
Geocentric closest approach at 2026/08/10 01:41:04 UTC
J2000 position of star is 06:05:38.0 +32:20:52
Equinox of date position of star is 06:07:22.3 +32:20:37
Star is 11 degrees from the moon. Moon is 10% illuminated.
Stellar brightness G=13.3, apparent brightess of occulting body is G=15.9
Use an exposure time of 0.14 seconds with the standard RECON-QHY system.
SNR of 10.0 per integration for unocculted signal
Expected flux drop is 92% with SNR of 9.2 for the occulted depth (per occulted point)
Apparent velocity is 31.5 km/sec on the sky relative to the star, or, 24.8 arcsec/hr.
Position angle of asteroid motion is 89.8 degrees
The recommended exposure time corresponds to 4.4 km per image.
The 1-sigma error in the time of the event is 0.2 seconds.
The 1-sigma cross-track error in the shadow position is 25.1 km.
The sky-plane scale is 4581.8 km/arcsec.
Diameter estimates:
66.4 km assuming a 5% albedo, maximum 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 63.2 km used for deployment plan.
Star training set for 16070_Charops, (2026/08/10 01:41UT) Object RA Dec mag sep mel Pollux 07:46:56.5 +27:57:35 1.1 21.91 12 Alnath 05:27:58.6 +28:37:38 1.6 9.26 18 PPM 071196 06:07:19.4 +33:35:42 6.1 1.25 12 PPM 071236 06:08:55.5 +32:11:41 8.5 0.36 11 PPM 071213 06:07:56.5 +32:18:12 10.0 0.13 11 16070_Charops 06:07:22.3 +32:20:37 15.9 11 Positions are for equinox of date
Star training set for 16070_Charops, (2026/08/10 01:41UT) Object RA Dec mag sep mel Pollux 07:45:17.7 +28:01:33 1.1 21.91 12 Alnath 05:26:17.6 +28:36:22 1.6 9.26 18 PPM 071196 06:05:34.0 +33:35:57 6.1 1.25 12 PPM 071236 06:07:11.3 +32:12:00 8.5 0.36 11 PPM 071213 06:06:12.2 +32:18:29 10.0 0.13 11 16070_Charops 06:05:38.0 +32:20:52 15.9 11 Positions are for J2000