Occultation event with (16070) Charops, event index number 3986
Regions able to see the event: SMexico
Geocentric closest approach at 2026/08/11 11:01:54 UTC
J2000 position of star is 06:06:42.9 +32:20:56
Equinox of date position of star is 06:08:27.2 +32:20:38
Star is 31 degrees from the moon. Moon is 2% illuminated.
Stellar brightness G=13.0, apparent brightess of occulting body is G=15.9
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 11.1 per integration for unocculted signal
Expected flux drop is 94% with SNR of 10.4 for the occulted depth (per occulted point)
Apparent velocity is 31.1 km/sec on the sky relative to the star, or, 24.5 arcsec/hr.
Position angle of asteroid motion is 89.8 degrees
The recommended exposure time corresponds to 3.7 km per image.
The 1-sigma error in the time of the event is 0.0 seconds.
The 1-sigma cross-track error in the shadow position is 0.0 km.
The sky-plane scale is 4570.9 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, (2026/08/11 11:02UT) Object RA Dec mag sep mel Pollux 07:46:56.5 +27:57:35 1.1 21.69 9 Alnath 05:27:58.6 +28:37:38 1.6 9.47 39 PPM 071342 06:14:04.7 +32:41:05 5.8 1.23 29 PPM 071236 06:08:55.5 +32:11:41 8.5 0.18 30 PPM 071213 06:07:56.5 +32:18:12 10.0 0.12 31 16070_Charops 06:08:27.2 +32:20:38 15.9 30 Positions are for equinox of date
Star training set for 16070_Charops, (2026/08/11 11:02UT) Object RA Dec mag sep mel Pollux 07:45:17.7 +28:01:33 1.1 21.69 9 Alnath 05:26:17.6 +28:36:22 1.6 9.47 39 PPM 071342 06:12:20.1 +32:41:36 5.8 1.23 29 PPM 071236 06:07:11.3 +32:12:00 8.5 0.18 30 PPM 071213 06:06:12.2 +32:18:29 10.0 0.12 31 16070_Charops 06:06:42.9 +32:20:56 15.9 31 Positions are for J2000