Occultation event with (16667) 93XM1, event index number 4895
Regions able to see the event: SAmericaN,SAfrica
Geocentric closest approach at 2026/11/27 02:20:39 UTC
J2000 position of star is 05:59:57.5 +19:25:17
Equinox of date position of star is 06:01:32.9 +19:25:15
Star is 12 degrees from the moon. Moon is 91% illuminated.
Stellar brightness G=15.4, apparent brightess of occulting body is G=15.8
Use an exposure time of 0.55 seconds with the standard RECON-QHY system.
SNR of 5.1 per integration for unocculted signal
Expected flux drop is 60% with SNR of 3.1 for the occulted depth (per occulted point)
Apparent velocity is 15.9 km/sec on the sky relative to the star, or, 17.8 arcsec/hr.
Position angle of asteroid motion is 99.9 degrees
The recommended exposure time corresponds to 8.7 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 36.4 km.
The sky-plane scale is 3203.5 km/arcsec.
Diameter estimates:
42.3 km assuming a 5% albedo, maximum of 2.7 sec for a central chord
17.3 km assuming a 30% albedo, maximum of 1.1 sec for a central chord
Cross-track diameter of 35.4 km used for deployment plan.
Star training set for 16667_93XM1, (2026/11/27 02:21UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.8 +07:24:35 0.4 12.07 22 Alhena 06:39:16.0 +16:22:26 1.9 9.47 10 64 Ori 06:05:02.9 +19:41:16 4.9 0.87 11 PPM 121713 06:01:05.1 +19:46:45 8.4 0.37 12 PPM 121696 06:00:34.1 +19:33:25 10.0 0.27 12 16667_93XM1 06:01:32.9 +19:25:15 15.8 12 Positions are for equinox of date
Star training set for 16667_93XM1, (2026/11/27 02:21UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 12.07 22 Alhena 06:37:42.8 +16:23:56 1.9 9.47 10 64 Ori 06:03:27.3 +19:41:26 4.9 0.87 11 PPM 121713 05:59:29.5 +19:46:46 8.4 0.37 12 PPM 121696 05:58:58.6 +19:33:24 10.0 0.27 12 16667_93XM1 05:59:57.5 +19:25:17 15.8 12 Positions are for J2000