Occultation event with (884) Priamus, event index number 4900
Regions able to see the event: Europe
Geocentric closest approach at 2026/11/27 06:14:16 UTC
J2000 position of star is 05:49:13.6 +29:53:45
Equinox of date position of star is 05:50:56.9 +29:54:09
Star is 15 degrees from the moon. Moon is 90% illuminated.
Stellar brightness G=16.4, apparent brightess of occulting body is G=14.1
Use an exposure time of 1.50 seconds with the standard RECON-QHY system.
SNR of 3.1 per integration for unocculted signal
Expected flux drop is 10% with SNR of 0.3 for the occulted depth (per occulted point)
Apparent velocity is 16.4 km/sec on the sky relative to the star, or, 16.6 arcsec/hr.
Position angle of asteroid motion is 88.2 degrees
The recommended exposure time corresponds to 24.7 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 33.9 km.
The sky-plane scale is 3558.9 km/arcsec.
Diameter estimates:
112.7 km assuming a 5% albedo, maximum of 6.9 sec for a central chord
46.0 km assuming a 30% albedo, maximum of 2.8 sec for a central chord
Cross-track diameter of 101.1 km used for deployment plan.
Star training set for 884_Priamus, (2026/11/27 06:14UT) Object RA Dec mag sep mel Aldebaran 04:37:28.1 +16:33:40 0.8 21.46 33 Alnath 05:27:59.7 +28:37:39 1.6 5.17 20 PPM 095117 05:58:16.4 +28:56:38 6.5 1.86 13 PPM 094872 05:49:08.1 +29:39:50 8.1 0.46 15 PPM 070885 05:50:56.9 +30:06:20 9.9 0.20 15 884_Priamus 05:50:56.9 +29:54:09 14.1 14 Positions are for equinox of date
Star training set for 884_Priamus, (2026/11/27 06:14UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 21.46 33 Alnath 05:26:17.6 +28:36:22 1.6 5.17 20 PPM 095117 05:56:33.8 +28:56:32 6.5 1.86 13 PPM 094872 05:47:24.9 +29:39:23 8.1 0.46 15 PPM 070885 05:49:13.4 +30:05:56 9.9 0.20 15 884_Priamus 05:49:13.6 +29:53:45 14.1 15 Positions are for J2000