Occultation event with (3317) Paris, event index number 4617
Regions able to see the event: SAmericaN,SAmericaS
Geocentric closest approach at 2026/11/09 05:34:24 UTC
J2000 position of star is 06:00:26.3 -02:47:42
Equinox of date position of star is 06:01:47.1 -02:47:45
Star is 127 degrees from the moon. Moon is 0% illuminated.
Stellar brightness G=15.0, apparent brightess of occulting body is G=14.1
Use an exposure time of 1.30 seconds with the standard RECON-QHY system.
SNR of 9.9 per integration for unocculted signal
Expected flux drop is 30% with SNR of 3.0 for the occulted depth (per occulted point)
Apparent velocity is 12.3 km/sec on the sky relative to the star, or, 12.0 arcsec/hr.
Position angle of asteroid motion is 65.5 degrees
The recommended exposure time corresponds to 16.0 km per image.
The 1-sigma error in the time of the event is 2.0 seconds.
The 1-sigma cross-track error in the shadow position is 25.2 km.
The sky-plane scale is 3704.4 km/arcsec.
Diameter estimates:
125.3 km assuming a 5% albedo, maximum of 10.2 sec for a central chord
51.2 km assuming a 30% albedo, maximum of 4.2 sec for a central chord
Cross-track diameter of 118.8 km used for deployment plan.
Star training set for 3317_Paris, (2026/11/09 05:34UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.6 +07:24:35 0.4 10.29 133 34Del Ori 05:33:22.8 -00:16:53 2.2 7.53 135 PPM 188676 06:01:24.0 -03:04:31 4.7 0.30 127 PPM 176089 06:01:04.5 -02:20:10 8.4 0.49 128 PPM 188676 06:01:24.0 -03:04:31 4.7 0.30 127 3317_Paris 06:01:47.1 -02:47:45 14.1 127 Positions are for equinox of date
Star training set for 3317_Paris, (2026/11/09 05:34UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 10.29 133 34Del Ori 05:32:00.4 -00:17:57 2.2 7.53 135 PPM 188676 06:00:03.4 -03:04:29 4.7 0.30 127 PPM 176089 05:59:43.4 -02:20:09 8.4 0.49 128 PPM 188676 06:00:03.4 -03:04:29 4.7 0.30 127 3317_Paris 06:00:26.3 -02:47:42 14.1 127 Positions are for J2000