Occultation event with (16070) Charops, event index number 4799
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/11/21 09:02:52 UTC
J2000 position of star is 06:32:22.0 +32:54:19
Equinox of date position of star is 06:34:07.7 +32:53:02
Star is 81 degrees from the moon. Moon is 86% illuminated.
Stellar brightness G=16.8, apparent brightess of occulting body is G=15.3
Use an exposure time of 1.75 seconds with the standard RECON-QHY system.
SNR of 3.0 per integration for unocculted signal
Expected flux drop is 20% with SNR of 0.6 for the occulted depth (per occulted point)
Apparent velocity is 12.7 km/sec on the sky relative to the star, or, 12.8 arcsec/hr.
Position angle of asteroid motion is 93.3 degrees
The recommended exposure time corresponds to 22.2 km per image.
The 1-sigma error in the time of the event is 0.8 seconds.
The 1-sigma cross-track error in the shadow position is 24.6 km.
The sky-plane scale is 3567.0 km/arcsec.
Diameter estimates:
66.4 km assuming a 5% albedo, maximum of 5.2 sec for a central chord
27.1 km assuming a 30% albedo, maximum of 2.1 sec for a central chord
Cross-track diameter of 63.2 km used for deployment plan.
Star training set for 16070_Charops, (2026/11/21 09:03UT) Object RA Dec mag sep mel Pollux 07:46:57.5 +27:57:32 1.1 16.43 97 34Bet Aur 06:01:30.1 +44:56:50 1.9 13.61 74 PPM 071742 06:34:12.4 +32:26:00 6.0 0.45 81 PPM 071755 06:34:34.0 +32:39:31 9.6 0.24 81 PPM 071750 06:34:25.0 +32:47:38 11.0 0.11 81 16070_Charops 06:34:07.7 +32:53:02 15.3 81 Positions are for equinox of date
Star training set for 16070_Charops, (2026/11/21 09:03UT) Object RA Dec mag sep mel Pollux 07:45:17.7 +28:01:33 1.1 16.43 97 34Bet Aur 05:59:31.6 +44:56:51 1.9 13.61 74 PPM 071742 06:32:27.1 +32:27:18 6.0 0.45 81 PPM 071755 06:32:48.6 +32:40:50 9.6 0.24 81 PPM 071750 06:32:39.4 +32:48:57 11.0 0.11 81 16070_Charops 06:32:22.0 +32:54:19 15.3 81 Positions are for J2000