Occultation event with (16560) Daitor, event index number 1330
Regions able to see the event: SAmericaN
Geocentric closest approach at 2025/10/02 02:22:33 UTC
J2000 position of star is 03:40:39.4 +04:28:38
Equinox of date position of star is 03:42:00.8 +04:33:31
Star is 109 degrees from the moon. Moon is 71% illuminated.
Stellar brightness G=15.6, apparent brightess of occulting body is G=16.0
Use an exposure time of 1.15 seconds with the standard RECON-QHY system.
SNR of 7.4 per integration for unocculted signal
Expected flux drop is 60% with SNR of 4.4 for the occulted depth (per occulted point)
Apparent velocity is 9.4 km/sec on the sky relative to the star, or, 10.3 arcsec/hr.
Position angle of asteroid motion is 58.6 degrees
The recommended exposure time corresponds to 10.8 km per image.
The 1-sigma error in the time of the event is 2.2 seconds.
The 1-sigma cross-track error in the shadow position is 14.1 km.
The sky-plane scale is 3256.9 km/arcsec.
Diameter estimates:
42.9 km assuming a 5% albedo, aximum of 4.6 sec for a central chord
17.5 km assuming a 30% albedo, maximum of 1.9 sec for a central chord
Cross-track diameter of 43.9 km used for deployment plan.
Star training set for 16560_Daitor, (2025/10/02 02:23UT) Object RA Dec mag sep mel Aldebaran 04:37:24.1 +16:33:32 0.8 18.13 126 Menkar 03:03:37.7 +04:11:21 2.5 9.58 100 12 Tau 03:41:11.8 +03:08:20 6.1 1.43 108 PPM 146745 03:39:11.2 +04:13:43 7.7 0.78 108 PPM 146817 03:42:31.1 +04:16:01 9.1 0.32 109 PPM 146792 03:41:28.9 +04:42:43 10.1 0.20 109 16560_Daitor 03:42:00.8 +04:33:31 16.0 109 Positions are for equinox of date
Star training set for 16560_Daitor, (2025/10/02 02:23UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 18.13 126 Menkar 03:02:16.8 +04:05:21 2.5 9.58 100 12 Tau 03:39:51.1 +03:03:25 6.1 1.43 108 PPM 146745 03:37:49.9 +04:08:44 7.7 0.78 108 PPM 146817 03:41:09.9 +04:11:08 9.1 0.32 109 PPM 146792 03:40:07.4 +04:37:49 10.1 0.20 109 16560_Daitor 03:40:39.4 +04:28:38 16.0 109 Positions are for J2000