Occultation event with (16560) Daitor, event index number 5188
Regions able to see the event: Australia
Geocentric closest approach at 2026/12/12 20:06:10 UTC
J2000 position of star is 05:21:44.3 +16:33:23
Equinox of date position of star is 05:23:17.7 +16:34:51
Star is 138 degrees from the moon. Moon is 12% illuminated.
Stellar brightness G=15.4, apparent brightess of occulting body is G=15.5
Use an exposure time of 0.60 seconds with the standard RECON-QHY system.
SNR of 5.5 per integration for unocculted signal
Expected flux drop is 52% with SNR of 2.9 for the occulted depth (per occulted point)
Apparent velocity is 18.2 km/sec on the sky relative to the star, or, 21.1 arcsec/hr.
Position angle of asteroid motion is 96.2 degrees
The recommended exposure time corresponds to 10.9 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 26.5 km.
The sky-plane scale is 3110.1 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, (2026/12/12 20:06UT) Object RA Dec mag sep mel Aldebaran 04:37:28.2 +16:33:41 0.8 10.98 127 Bellatrix 05:26:34.7 +06:22:19 1.6 10.24 135 110 Tau 05:25:11.2 +16:43:21 6.4 0.47 139 PPM 120885 05:24:08.1 +16:49:40 8.1 0.32 138 PPM 120861 05:22:56.6 +16:21:26 10.5 0.24 138 16560_Daitor 05:23:17.7 +16:34:51 15.5 138 Positions are for equinox of date
Star training set for 16560_Daitor, (2026/12/12 20:06UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 10.98 127 Bellatrix 05:25:07.8 +06:20:58 1.6 10.24 135 110 Tau 05:23:37.6 +16:41:58 6.4 0.47 139 PPM 120885 05:22:34.4 +16:48:14 8.1 0.32 138 PPM 120861 05:21:23.4 +16:19:57 10.5 0.24 138 16560_Daitor 05:21:44.3 +16:33:23 15.5 138 Positions are for J2000