Occultation event with (16070) Charops, event index number 4044
Regions able to see the event: SAfrica
Geocentric closest approach at 2026/08/19 04:29:46 UTC
J2000 position of star is 06:12:29.5 +32:21:18
Equinox of date position of star is 06:14:13.9 +32:20:47
Star is 133 degrees from the moon. Moon is 41% illuminated.
Stellar brightness G=15.8, apparent brightess of occulting body is G=15.9
Use an exposure time of 0.55 seconds with the standard RECON-QHY system.
SNR of 3.6 per integration for unocculted signal
Expected flux drop is 53% with SNR of 1.9 for the occulted depth (per occulted point)
Apparent velocity is 28.6 km/sec on the sky relative to the star, or, 22.8 arcsec/hr.
Position angle of asteroid motion is 89.7 degrees
The recommended exposure time corresponds to 15.7 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 24.5 km.
The sky-plane scale is 4506.3 km/arcsec.
Diameter estimates:
66.4 km assuming a 5% albedo, maximum of 2.3 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, (2026/08/19 04:30UT) Object RA Dec mag sep mel Pollux 07:46:56.6 +27:57:35 1.1 20.47 113 Alnath 05:27:58.7 +28:37:38 1.6 10.63 143 PPM 071342 06:14:04.8 +32:41:05 5.8 0.34 133 PPM 071349 06:14:24.8 +32:57:50 7.9 0.62 133 PPM 071346 06:14:13.4 +32:23:33 9.8 0.05 133 16070_Charops 06:14:13.9 +32:20:47 15.9 133 Positions are for equinox of date
Star training set for 16070_Charops, (2026/08/19 04:30UT) Object RA Dec mag sep mel Pollux 07:45:17.7 +28:01:33 1.1 20.47 113 Alnath 05:26:17.6 +28:36:22 1.6 10.63 143 PPM 071342 06:12:20.1 +32:41:36 5.8 0.34 133 PPM 071349 06:12:39.8 +32:58:21 7.9 0.62 133 PPM 071346 06:12:29.0 +32:24:04 9.8 0.05 133 16070_Charops 06:12:29.5 +32:21:18 15.9 133 Positions are for J2000