Occultation event with (16070) Charops, event index number 3614
Regions able to see the event: Europe
Geocentric closest approach at 2026/04/11 21:13:52 UTC
J2000 position of star is 04:15:57.3 +31:57:27
Equinox of date position of star is 04:17:37.8 +32:01:17
Star is 117 degrees from the moon. Moon is 34% 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 44% with SNR of 1.4 for the occulted depth (per occulted point)
Apparent velocity is 32.6 km/sec on the sky relative to the star, or, 26.0 arcsec/hr.
Position angle of asteroid motion is 90.4 degrees
The recommended exposure time corresponds to 21.2 km per image.
The 1-sigma error in the time of the event is 0.0 seconds.
The 1-sigma cross-track error in the shadow position is 25.6 km.
The sky-plane scale is 4520.4 km/arcsec.
Diameter estimates:
66.4 km assuming a 5% albedo, maximum of 2.0 sec for a central chord
27.1 km assuming a 30% albedo, maximum of 0.8 sec for a central chord
Cross-track diameter of 63.2 km used for deployment plan.
Star training set for 16070_Charops, (2026/04/11 21:14UT) Object RA Dec mag sep mel Aldebaran 04:37:25.9 +16:33:36 0.8 16.10 118 44Zet Per 03:55:47.4 +31:57:34 2.8 4.63 112 PPM 069410 04:27:47.0 +31:29:46 5.3 2.22 119 PPM 069298 04:19:55.6 +32:27:09 7.8 0.65 117 PPM 069273 04:18:10.5 +32:13:38 9.8 0.24 117 PPM 069256 04:17:18.5 +32:14:00 10.5 0.22 117 16070_Charops 04:17:37.8 +32:01:17 15.9 117 Positions are for equinox of date
Star training set for 16070_Charops, (2026/04/11 21:14UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 16.10 118 44Zet Per 03:54:07.9 +31:53:01 2.8 4.63 112 PPM 069410 04:26:06.4 +31:26:18 5.3 2.22 119 PPM 069298 04:18:14.7 +32:23:24 7.8 0.65 117 PPM 069273 04:16:29.8 +32:09:50 9.8 0.24 117 PPM 069256 04:15:37.8 +32:10:10 10.5 0.22 117 16070_Charops 04:15:57.3 +31:57:27 15.9 117 Positions are for J2000