Occultation event with (16070) Charops, event index number 4304
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/09/25 06:58:15 UTC
J2000 position of star is 06:33:13.8 +32:27:12
Equinox of date position of star is 06:34:58.5 +32:25:52
Star is 112 degrees from the moon. Moon is 98% illuminated.
Stellar brightness G=16.2, apparent brightess of occulting body is G=15.8
Use an exposure time of 1.15 seconds with the standard RECON-QHY system.
SNR of 4.3 per integration for unocculted signal
Expected flux drop is 41% with SNR of 1.8 for the occulted depth (per occulted point)
Apparent velocity is 13.4 km/sec on the sky relative to the star, or, 11.7 arcsec/hr.
Position angle of asteroid motion is 86.1 degrees
The recommended exposure time corresponds to 15.4 km per image.
The 1-sigma error in the time of the event is 0.5 seconds.
The 1-sigma cross-track error in the shadow position is 25.4 km.
The sky-plane scale is 4129.5 km/arcsec.
Diameter estimates:
66.4 km assuming a 5% albedo, maximum of 5.0 sec for a central chord
27.1 km assuming a 30% albedo, maximum of 2.0 sec for a central chord
Cross-track diameter of 63.2 km used for deployment plan.
Star training set for 16070_Charops, (2026/09/25 06:58UT) Object RA Dec mag sep mel Pollux 07:46:56.9 +27:57:34 1.1 16.16 128 34Bet Aur 06:01:29.4 +44:56:50 1.9 14.10 103 PPM 071742 06:34:11.8 +32:26:00 6.0 0.16 112 16070_Charops 06:34:58.5 +32:25:52 15.8 112 Positions are for equinox of date
Star training set for 16070_Charops, (2026/09/25 06:58UT) Object RA Dec mag sep mel Pollux 07:45:17.7 +28:01:33 1.1 16.16 128 34Bet Aur 05:59:31.6 +44:56:51 1.9 14.10 103 PPM 071742 06:32:27.1 +32:27:18 6.0 0.16 112 16070_Charops 06:33:13.8 +32:27:12 15.8 112 Positions are for J2000