Occultation event with (16667) 93XM1, event index number 4552
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/11/03 03:42:55 UTC
J2000 position of star is 06:08:49.0 +19:00:08
Equinox of date position of star is 06:10:23.9 +18:59:45
Star is 55 degrees from the moon. Moon is 36% illuminated.
Stellar brightness G=12.9, apparent brightess of occulting body is G=16.1
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 11.9 per integration for unocculted signal
Expected flux drop is 95% with SNR of 11.3 for the occulted depth (per occulted point)
Apparent velocity is 7.6 km/sec on the sky relative to the star, or, 8.2 arcsec/hr.
Position angle of asteroid motion is 105.2 degrees
The recommended exposure time corresponds to 0.9 km per image.
The 1-sigma error in the time of the event is 0.2 seconds.
The 1-sigma cross-track error in the shadow position is 36.9 km.
The sky-plane scale is 3348.6 km/arcsec.
Diameter estimates:
42.3 km assuming a 5% albedo, maximum of 5.5 sec for a central chord
17.3 km assuming a 30% albedo, maximum of 2.3 sec for a central chord
Cross-track diameter of 35.4 km used for deployment plan.
Star training set for 16667_93XM1, (2026/11/03 03:43UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.5 +07:24:35 0.4 12.06 60 Alhena 06:39:15.7 +16:22:26 1.9 7.36 49 PPM 122116 06:15:07.9 +18:40:15 6.3 1.17 54 PPM 121943 06:09:12.6 +18:54:26 7.8 0.29 56 PPM 121977 06:10:22.0 +19:03:41 9.2 0.07 55 16667_93XM1 06:10:23.9 +18:59:45 16.1 55 Positions are for equinox of date
Star training set for 16667_93XM1, (2026/11/03 03:43UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 12.06 60 Alhena 06:37:42.8 +16:23:56 1.9 7.36 49 PPM 122116 06:13:33.3 +18:40:48 6.3 1.17 54 PPM 121943 06:07:37.8 +18:54:45 7.8 0.29 56 PPM 121977 06:08:47.0 +19:04:03 9.2 0.07 55 16667_93XM1 06:08:49.0 +19:00:08 16.1 55 Positions are for J2000