Occultation event with (4832) Palinurus, event index number 4121
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/08/29 08:31:29 UTC
J2000 position of star is 05:59:44.8 +08:25:31
Equinox of date position of star is 06:01:12.1 +08:25:30
Star is 100 degrees from the moon. Moon is 98% illuminated.
Stellar brightness G=15.6, apparent brightess of occulting body is G=15.8
Use an exposure time of 0.50 seconds with the standard RECON-QHY system.
SNR of 3.9 per integration for unocculted signal
Expected flux drop is 53% with SNR of 2.0 for the occulted depth (per occulted point)
Apparent velocity is 24.2 km/sec on the sky relative to the star, or, 21.9 arcsec/hr.
Position angle of asteroid motion is 99.6 degrees
The recommended exposure time corresponds to 12.1 km per image.
The 1-sigma error in the time of the event is 0.1 seconds.
The 1-sigma cross-track error in the shadow position is 35.7 km.
The sky-plane scale is 3992.3 km/arcsec.
Diameter estimates:
60.0 km assuming a 5% albedo, maximum of 2.5 sec for a central chord
24.5 km assuming a 30% albedo, maximum of 1.0 sec for a central chord
Cross-track diameter of 52.1 km used for deployment plan.
Star training set for 4832_Palinurus, (2026/08/29 08:31UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.0 +07:24:35 0.4 1.52 99 Bellatrix 05:26:33.7 +06:22:18 1.6 8.83 91 PPM 149523 05:51:30.8 +09:52:37 6.4 2.80 98 PPM 149724 06:00:54.9 +08:24:55 7.7 0.07 100 4832_Palinurus 06:01:12.1 +08:25:30 15.8 100 Positions are for equinox of date
Star training set for 4832_Palinurus, (2026/08/29 08:31UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 1.52 99 Bellatrix 05:25:07.8 +06:20:58 1.6 8.83 91 PPM 149523 05:50:02.7 +09:52:15 6.4 2.80 98 PPM 149724 05:59:27.7 +08:24:55 7.7 0.07 100 4832_Palinurus 05:59:44.8 +08:25:31 15.8 100 Positions are for J2000