Occultation event with (4867) Polites, event index number 4544
Regions able to see the event: Europe
Geocentric closest approach at 2026/11/02 04:21:43 UTC
J2000 position of star is 05:48:53.8 +53:49:55
Equinox of date position of star is 05:51:05.4 +53:50:19
Star is 52 degrees from the moon. Moon is 46% illuminated.
Stellar brightness G=15.1, apparent brightess of occulting body is G=15.3
Use an exposure time of 1.05 seconds with the standard RECON-QHY system.
SNR of 9.8 per integration for unocculted signal
Expected flux drop is 55% with SNR of 5.3 for the occulted depth (per occulted point)
Apparent velocity is 11.7 km/sec on the sky relative to the star, or, 12.5 arcsec/hr.
Position angle of asteroid motion is 138.1 degrees
The recommended exposure time corresponds to 12.3 km per image.
The 1-sigma error in the time of the event is 2.3 seconds.
The 1-sigma cross-track error in the shadow position is 16.9 km.
The sky-plane scale is 3364.7 km/arcsec.
Diameter estimates:
62.5 km assuming a 5% albedo, maximum of 5.4 sec for a central chord
25.5 km assuming a 30% albedo, maximum of 2.2 sec for a central chord
Cross-track diameter of 57.3 km used for deployment plan.
Star training set for 4867_Polites, (2026/11/02 04:22UT) Object RA Dec mag sep mel Pollux 07:46:57.3 +27:57:33 1.1 33.43 21 34Bet Aur 06:01:29.9 +44:56:50 1.9 9.05 47 30Xi Aur 05:57:05.8 +55:42:35 5.0 2.06 52 PPM 030055 05:51:14.9 +54:02:20 8.3 0.20 52 PPM 030051 05:50:48.0 +53:47:41 10.5 0.06 52 4867_Polites 05:51:05.4 +53:50:19 15.3 52 Positions are for equinox of date
Star training set for 4867_Polites, (2026/11/02 04:22UT) Object RA Dec mag sep mel Pollux 07:45:17.7 +28:01:33 1.1 33.43 21 34Bet Aur 05:59:31.6 +44:56:51 1.9 9.05 47 30Xi Aur 05:54:50.7 +55:42:26 5.0 2.06 52 PPM 030055 05:49:03.0 +54:01:57 8.3 0.20 52 PPM 030051 05:48:36.6 +53:47:17 10.5 0.06 52 4867_Polites 05:48:53.8 +53:49:55 15.3 52 Positions are for J2000