Occultation event with (16667) 93XM1, event index number 4763
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/11/19 02:17:22 UTC
J2000 position of star is 06:03:38.0 +19:15:54
Equinox of date position of star is 06:05:13.2 +19:15:43
Star is 106 degrees from the moon. Moon is 66% illuminated.
Stellar brightness G=14.8, apparent brightess of occulting body is G=15.9
Use an exposure time of 0.65 seconds with the standard RECON-QHY system.
SNR of 9.7 per integration for unocculted signal
Expected flux drop is 75% with SNR of 7.2 for the occulted depth (per occulted point)
Apparent velocity is 13.6 km/sec on the sky relative to the star, or, 15.1 arcsec/hr.
Position angle of asteroid motion is 100.6 degrees
The recommended exposure time corresponds to 8.8 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 36.2 km.
The sky-plane scale is 3240.9 km/arcsec.
Diameter estimates:
42.3 km assuming a 5% albedo, maximum of 3.1 sec for a central chord
17.3 km assuming a 30% albedo, maximum of 1.3 sec for a central chord
Cross-track diameter of 35.4 km used for deployment plan.
Star training set for 16667_93XM1, (2026/11/19 02:17UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.7 +07:24:35 0.4 12.03 104 Alhena 06:39:15.9 +16:22:26 1.9 8.60 114 64 Ori 06:05:02.8 +19:41:16 4.9 0.43 106 PPM 121849 06:05:56.4 +18:41:26 8.5 0.60 106 PPM 121840 06:05:42.2 +19:14:49 8.7 0.12 106 16667_93XM1 06:05:13.2 +19:15:43 15.9 106 Positions are for equinox of date
Star training set for 16667_93XM1, (2026/11/19 02:17UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 12.03 104 Alhena 06:37:42.8 +16:23:56 1.9 8.60 114 64 Ori 06:03:27.3 +19:41:26 4.9 0.43 106 PPM 121849 06:04:21.6 +18:41:38 8.5 0.60 106 PPM 121840 06:04:07.0 +19:15:00 8.7 0.12 106 16667_93XM1 06:03:38.0 +19:15:54 15.9 106 Positions are for J2000