Occultation event with (16070) Charops, event index number 5049
Regions able to see the event: Australia
Geocentric closest approach at 2026/12/05 12:16:42 UTC
J2000 position of star is 06:25:32.5 +32:55:37
Equinox of date position of star is 06:27:18.5 +32:54:35
Star is 119 degrees from the moon. Moon is 12% illuminated.
Stellar brightness G=16.3, apparent brightess of occulting body is G=15.2
Use an exposure time of 0.90 seconds with the standard RECON-QHY system.
SNR of 3.1 per integration for unocculted signal
Expected flux drop is 26% with SNR of 0.8 for the occulted depth (per occulted point)
Apparent velocity is 16.8 km/sec on the sky relative to the star, or, 17.3 arcsec/hr.
Position angle of asteroid motion is 88.7 degrees
The recommended exposure time corresponds to 15.1 km per image.
The 1-sigma error in the time of the event is 0.4 seconds.
The 1-sigma cross-track error in the shadow position is 25.6 km.
The sky-plane scale is 3489.4 km/arcsec.
Diameter estimates:
66.4 km assuming a 5% albedo, maximum of 4.0 sec for a central chord
27.1 km assuming a 30% albedo, maximum of 1.6 sec for a central chord
Cross-track diameter of 63.2 km used for deployment plan.
Star training set for 16070_Charops, (2026/12/05 12:17UT) Object RA Dec mag sep mel Pollux 07:46:57.7 +27:57:32 1.1 17.84 101 34Bet Aur 06:01:30.3 +44:56:50 1.9 13.03 123 PPM 071742 06:34:12.6 +32:26:00 6.0 1.53 117 PPM 071634 06:29:21.1 +32:32:38 7.5 0.56 118 PPM 071612 06:27:57.8 +33:06:28 9.4 0.24 119 PPM 071605 06:27:42.8 +32:46:53 11.2 0.15 119 16070_Charops 06:27:18.5 +32:54:35 15.2 119 Positions are for equinox of date
Star training set for 16070_Charops, (2026/12/05 12:17UT) Object RA Dec mag sep mel Pollux 07:45:17.7 +28:01:33 1.1 17.84 101 34Bet Aur 05:59:31.6 +44:56:51 1.9 13.03 123 PPM 071742 06:32:27.1 +32:27:18 6.0 1.53 117 PPM 071634 06:27:35.5 +32:33:45 7.5 0.56 118 PPM 071612 06:26:11.6 +33:07:31 9.4 0.24 119 PPM 071605 06:25:56.9 +32:47:56 11.2 0.15 119 16070_Charops 06:25:32.5 +32:55:37 15.2 119 Positions are for J2000