Occultation event with (16070) Charops, event index number 4159
Regions able to see the event: Europe
Geocentric closest approach at 2026/09/03 01:34:33 UTC
J2000 position of star is 06:22:21.1 +32:22:29
Equinox of date position of star is 06:24:05.6 +32:21:35
Star is 41 degrees from the moon. Moon is 64% illuminated.
Stellar brightness G=16.1, apparent brightess of occulting body is G=15.9
Use an exposure time of 0.65 seconds with the standard RECON-QHY system.
SNR of 3.2 per integration for unocculted signal
Expected flux drop is 45% with SNR of 1.4 for the occulted depth (per occulted point)
Apparent velocity is 23.1 km/sec on the sky relative to the star, or, 19.0 arcsec/hr.
Position angle of asteroid motion is 89.1 degrees
The recommended exposure time corresponds to 15.0 km per image.
The 1-sigma error in the time of the event is 0.3 seconds.
The 1-sigma cross-track error in the shadow position is 25.4 km.
The sky-plane scale is 4366.1 km/arcsec.
Diameter estimates:
66.4 km assuming a 5% albedo, maximum of 2.9 sec for a central chord
27.1 km assuming a 30% albedo, maximum of 1.2 sec for a central chord
Cross-track diameter of 63.2 km used for deployment plan.
Star training set for 16070_Charops, (2026/09/03 01:35UT) Object RA Dec mag sep mel Pollux 07:46:56.7 +27:57:34 1.1 18.41 59 Alnath 05:27:58.8 +28:37:39 1.6 12.64 28 PPM 071742 06:34:11.6 +32:26:01 6.0 2.13 43 PPM 071595 06:26:57.1 +32:15:17 8.1 0.61 41 PPM 071526 06:23:13.7 +32:23:22 9.1 0.18 40 16070_Charops 06:24:05.6 +32:21:35 15.9 41 Positions are for equinox of date
Star training set for 16070_Charops, (2026/09/03 01:35UT) Object RA Dec mag sep mel Pollux 07:45:17.7 +28:01:33 1.1 18.41 59 Alnath 05:26:17.6 +28:36:22 1.6 12.64 28 PPM 071742 06:32:27.1 +32:27:18 6.0 2.13 43 PPM 071595 06:25:12.7 +32:16:18 8.1 0.61 41 PPM 071526 06:21:29.2 +32:24:14 9.1 0.18 40 16070_Charops 06:22:21.1 +32:22:29 15.9 41 Positions are for J2000