Occultation event with (4867) Polites, event index number 1462
Regions able to see the event: Europe,SAmericaN
Geocentric closest approach at 2025/11/05 23:11:11 UTC
J2000 position of star is 02:08:44.7 +46:45:36
Equinox of date position of star is 02:10:23.9 +46:52:53
Star is 27 degrees from the moon. Moon is 100% illuminated.
Stellar brightness G=14.6, apparent brightess of occulting body is G=15.0
Use an exposure time of 0.55 seconds with the standard RECON-QHY system.
SNR of 9.5 per integration for unocculted signal
Expected flux drop is 60% with SNR of 5.7 for the occulted depth (per occulted point)
Apparent velocity is 17.4 km/sec on the sky relative to the star, or, 19.7 arcsec/hr.
Position angle of asteroid motion is 75.2 degrees
The recommended exposure time corresponds to 9.6 km per image.
The 1-sigma error in the time of the event is 1.2 seconds.
The 1-sigma cross-track error in the shadow position is 19.9 km.
The sky-plane scale is 3181.6 km/arcsec.
Diameter estimates:
62.5 km assuming a 5% albedo, aximum of 3.6 sec for a central chord
25.5 km assuming a 30% albedo, maximum of 1.5 sec for a central chord
Cross-track diameter of 57.3 km used for deployment plan.
Star training set for 4867_Polites, (2025/11/05 23:11UT) Object RA Dec mag sep mel Aldebaran 04:37:24.4 +16:33:33 0.8 42.86 22 57Gam1And 02:05:29.9 +42:27:09 2.3 4.51 24 PPM 044899 02:15:42.6 +47:36:12 6.3 1.15 27 PPM 044756 02:07:49.4 +46:58:55 7.5 0.45 27 PPM 044791 02:09:58.4 +47:10:48 9.9 0.31 27 PPM 044782 02:09:14.0 +46:48:32 10.2 0.21 27 4867_Polites 02:10:23.9 +46:52:53 15.0 27 Positions are for equinox of date
Star training set for 4867_Polites, (2025/11/05 23:11UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 42.86 22 57Gam1And 02:03:54.1 +42:19:46 2.3 4.51 24 PPM 044899 02:14:02.2 +47:29:02 6.3 1.15 27 PPM 044756 02:06:10.5 +46:51:34 7.5 0.45 27 PPM 044791 02:08:19.0 +47:03:31 9.9 0.31 27 PPM 044782 02:07:35.0 +46:41:13 10.2 0.21 27 4867_Polites 02:08:44.7 +46:45:36 15.0 27 Positions are for J2000