Occultation event with (16560) Daitor, event index number 5132
Regions able to see the event: SAmericaN,SAmericaS
Geocentric closest approach at 2026/12/09 05:15:49 UTC
J2000 position of star is 05:23:50.6 +16:30:15
Equinox of date position of star is 05:25:23.9 +16:31:38
Star is 169 degrees from the moon. Moon is 0% illuminated.
Stellar brightness G=16.2, apparent brightess of occulting body is G=15.5
Use an exposure time of 0.75 seconds with the standard RECON-QHY system.
SNR of 3.1 per integration for unocculted signal
Expected flux drop is 34% with SNR of 1.1 for the occulted depth (per occulted point)
Apparent velocity is 18.1 km/sec on the sky relative to the star, or, 20.9 arcsec/hr.
Position angle of asteroid motion is 95.7 degrees
The recommended exposure time corresponds to 13.6 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 26.3 km.
The sky-plane scale is 3111.6 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, (2026/12/09 05:16UT) Object RA Dec mag sep mel Aldebaran 04:37:28.2 +16:33:40 0.8 11.48 166 Bellatrix 05:26:34.6 +06:22:19 1.6 10.16 159 110 Tau 05:25:11.2 +16:43:21 6.4 0.20 169 PPM 120906 05:25:15.0 +16:31:13 8.2 0.04 169 16560_Daitor 05:25:23.9 +16:31:38 15.5 169 Positions are for equinox of date
Star training set for 16560_Daitor, (2026/12/09 05:16UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 11.48 166 Bellatrix 05:25:07.8 +06:20:58 1.6 10.16 159 110 Tau 05:23:37.6 +16:41:58 6.4 0.20 169 PPM 120906 05:23:41.6 +16:29:49 8.2 0.04 169 16560_Daitor 05:23:50.6 +16:30:15 15.5 169 Positions are for J2000