Occultation event with (16560) Daitor, event index number 4098
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/08/25 10:11:45 UTC
J2000 position of star is 05:29:25.9 +16:09:20
Equinox of date position of star is 05:30:58.1 +16:10:30
Star is 141 degrees from the moon. Moon is 93% illuminated.
Stellar brightness G=13.4, apparent brightess of occulting body is G=16.5
Use an exposure time of 0.15 seconds with the standard RECON-QHY system.
SNR of 10.0 per integration for unocculted signal
Expected flux drop is 95% with SNR of 9.5 for the occulted depth (per occulted point)
Apparent velocity is 22.2 km/sec on the sky relative to the star, or, 19.9 arcsec/hr.
Position angle of asteroid motion is 87.4 degrees
The recommended exposure time corresponds to 3.3 km per image.
The 1-sigma error in the time of the event is 0.4 seconds.
The 1-sigma cross-track error in the shadow position is 25.1 km.
The sky-plane scale is 4013.5 km/arcsec.
Diameter estimates:
42.9 km assuming a 5% albedo, maximum of 1.9 sec for a central chord
17.5 km assuming a 30% albedo, maximum of 0.8 sec for a central chord
Cross-track diameter of 43.9 km used for deployment plan.
Star training set for 16560_Daitor, (2026/08/25 10:12UT) Object RA Dec mag sep mel Betelgeuse 05:56:36.9 +07:24:35 0.4 10.78 143 Bellatrix 05:26:33.7 +06:22:18 1.6 9.86 136 116 Tau 05:29:17.6 +15:53:40 5.5 0.49 140 PPM 121019 05:31:30.0 +16:10:12 8.3 0.13 141 16560_Daitor 05:30:58.1 +16:10:30 16.5 141 Positions are for equinox of date
Star training set for 16560_Daitor, (2026/08/25 10:12UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 10.78 143 Bellatrix 05:25:07.8 +06:20:58 1.6 9.86 136 116 Tau 05:27:45.6 +15:52:26 5.5 0.49 140 PPM 121019 05:29:57.9 +16:09:04 8.3 0.13 141 16560_Daitor 05:29:25.9 +16:09:20 16.5 141 Positions are for J2000