Occultation event with (16560) Daitor, event index number 5025
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/12/04 09:22:38 UTC
J2000 position of star is 05:26:36.6 +16:26:29
Equinox of date position of star is 05:28:10.0 +16:27:46
Star is 117 degrees from the moon. Moon is 20% illuminated.
Stellar brightness G=15.9, apparent brightess of occulting body is G=15.6
Use an exposure time of 0.60 seconds with the standard RECON-QHY system.
SNR of 3.3 per integration for unocculted signal
Expected flux drop is 41% with SNR of 1.4 for the occulted depth (per occulted point)
Apparent velocity is 17.7 km/sec on the sky relative to the star, or, 20.4 arcsec/hr.
Position angle of asteroid motion is 95.1 degrees
The recommended exposure time corresponds to 10.6 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 26.8 km.
The sky-plane scale is 3118.4 km/arcsec.
Diameter estimates:
42.9 km assuming a 5% albedo, maximum of 2.4 sec for a central chord
17.5 km assuming a 30% albedo, maximum of 1.0 sec for a central chord
Cross-track diameter of 43.9 km used for deployment plan.
Star training set for 16560_Daitor, (2026/12/04 09:23UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.8 +07:24:35 0.4 11.42 109 Bellatrix 05:26:34.6 +06:22:18 1.6 10.10 116 116 Tau 05:29:18.5 +15:53:40 5.5 0.63 117 PPM 120955 05:28:11.0 +16:14:26 7.9 0.22 117 16560_Daitor 05:28:10.0 +16:27:46 15.6 117 Positions are for equinox of date
Star training set for 16560_Daitor, (2026/12/04 09:23UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 11.42 109 Bellatrix 05:25:07.8 +06:20:58 1.6 10.10 116 116 Tau 05:27:45.6 +15:52:26 5.5 0.63 117 PPM 120955 05:26:37.9 +16:13:09 7.9 0.22 117 16560_Daitor 05:26:36.6 +16:26:29 15.6 117 Positions are for J2000