Occultation event with (884) Priamus, event index number 4835
Regions able to see the event: NMexico,SMexico
Geocentric closest approach at 2026/11/23 10:15:12 UTC
J2000 position of star is 05:51:07.7 +29:54:22
Equinox of date position of star is 05:52:51.0 +29:54:40
Star is 43 degrees from the moon. Moon is 98% illuminated.
Stellar brightness G=16.5, apparent brightess of occulting body is G=14.1
Use an exposure time of 1.60 seconds with the standard RECON-QHY system.
SNR of 3.0 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 15.5 km/sec on the sky relative to the star, or, 15.6 arcsec/hr.
Position angle of asteroid motion is 89.1 degrees
The recommended exposure time corresponds to 24.8 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 34.5 km.
The sky-plane scale is 3576.9 km/arcsec.
Diameter estimates:
112.7 km assuming a 5% albedo, maximum of 7.3 sec for a central chord
46.0 km assuming a 30% albedo, maximum of 3.0 sec for a central chord
Cross-track diameter of 101.1 km used for deployment plan.
Star training set for 884_Priamus, (2026/11/23 10:15UT) Object RA Dec mag sep mel Aldebaran 04:37:28.0 +16:33:40 0.8 21.81 27 Alnath 05:27:59.7 +28:37:39 1.6 5.57 38 PPM 095117 05:58:16.3 +28:56:38 6.5 1.53 44 PPM 094872 05:49:08.0 +29:39:50 8.1 0.84 43 PPM 094954 05:52:16.9 +29:45:52 10.0 0.19 43 884_Priamus 05:52:51.0 +29:54:40 14.1 44 Positions are for equinox of date
Star training set for 884_Priamus, (2026/11/23 10:15UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 21.81 27 Alnath 05:26:17.6 +28:36:22 1.6 5.57 38 PPM 095117 05:56:33.8 +28:56:32 6.5 1.53 44 PPM 094872 05:47:24.9 +29:39:23 8.1 0.84 43 PPM 094954 05:50:33.7 +29:45:31 10.0 0.19 43 884_Priamus 05:51:07.7 +29:54:22 14.1 43 Positions are for J2000