Occultation event with (3317) Paris, event index number 4768
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/11/19 10:07:06 UTC
J2000 position of star is 05:56:57.7 -03:04:37
Equinox of date position of star is 05:58:18.5 -03:04:32
Star is 100 degrees from the moon. Moon is 69% illuminated.
Stellar brightness G=16.0, apparent brightess of occulting body is G=14.0
Use an exposure time of 1.95 seconds with the standard RECON-QHY system.
SNR of 5.2 per integration for unocculted signal
Expected flux drop is 14% with SNR of 0.7 for the occulted depth (per occulted point)
Apparent velocity is 15.1 km/sec on the sky relative to the star, or, 14.9 arcsec/hr.
Position angle of asteroid motion is 77.3 degrees
The recommended exposure time corresponds to 29.4 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 29.8 km.
The sky-plane scale is 3641.8 km/arcsec.
Diameter estimates:
125.3 km assuming a 5% albedo, maximum of 8.3 sec for a central chord
51.2 km assuming a 30% albedo, maximum of 3.4 sec for a central chord
Cross-track diameter of 118.8 km used for deployment plan.
Star training set for 3317_Paris, (2026/11/19 10:07UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.7 +07:24:35 0.4 10.49 100 34Del Ori 05:33:22.9 -00:16:53 2.2 6.83 94 PPM 188676 06:01:24.1 -03:04:31 4.7 0.77 101 PPM 188576 05:55:57.0 -03:12:20 8.4 0.60 99 PPM 188618 05:58:10.2 -03:04:11 8.9 0.03 100 3317_Paris 05:58:18.5 -03:04:32 14.0 100 Positions are for equinox of date
Star training set for 3317_Paris, (2026/11/19 10:07UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 10.49 100 34Del Ori 05:32:00.4 -00:17:57 2.2 6.83 94 PPM 188676 06:00:03.4 -03:04:29 4.7 0.77 101 PPM 188576 05:54:36.3 -03:12:31 8.4 0.60 99 PPM 188618 05:56:49.4 -03:04:17 8.9 0.03 100 3317_Paris 05:56:57.7 -03:04:37 14.0 100 Positions are for J2000