Occultation event with (5476) Mulius, event index number 4205
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/09/09 05:27:48 UTC
J2000 position of star is 05:54:15.4 +11:51:08
Equinox of date position of star is 05:55:44.9 +11:51:20
Star is 54 degrees from the moon. Moon is 5% illuminated.
Stellar brightness G=13.8, apparent brightess of occulting body is G=16.6
Use an exposure time of 0.20 seconds with the standard RECON-QHY system.
SNR of 9.0 per integration for unocculted signal
Expected flux drop is 93% with SNR of 8.4 for the occulted depth (per occulted point)
Apparent velocity is 19.2 km/sec on the sky relative to the star, or, 17.3 arcsec/hr.
Position angle of asteroid motion is 110.3 degrees
The recommended exposure time corresponds to 3.8 km per image.
The 1-sigma error in the time of the event is 0.6 seconds.
The 1-sigma cross-track error in the shadow position is 25.5 km.
The sky-plane scale is 4013.1 km/arcsec.
Diameter estimates:
42.7 km assuming a 5% albedo, maximum of 2.2 sec for a central chord
17.4 km assuming a 30% albedo, maximum of 0.9 sec for a central chord
Cross-track diameter of 35.1 km used for deployment plan.
Star training set for 5476_Mulius, (2026/09/09 05:28UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.1 +07:24:35 0.4 4.45 55 Bellatrix 05:26:33.8 +06:22:18 1.6 9.05 62 PPM 121631 05:58:19.0 +11:31:20 5.9 0.71 54 PPM 121571 05:56:01.8 +11:45:57 6.8 0.11 54 5476_Mulius 05:55:44.9 +11:51:20 16.6 54 Positions are for equinox of date
Star training set for 5476_Mulius, (2026/09/09 05:28UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 4.45 55 Bellatrix 05:25:07.8 +06:20:58 1.6 9.05 62 PPM 121631 05:56:49.6 +11:31:14 5.9 0.71 54 PPM 121571 05:54:32.3 +11:45:46 6.8 0.11 54 5476_Mulius 05:54:15.4 +11:51:08 16.6 54 Positions are for J2000