Occultation event with (4832) Palinurus, event index number 4221
Regions able to see the event: SAmericaN,SAmericaS
Geocentric closest approach at 2026/09/11 07:06:28 UTC
J2000 position of star is 06:06:31.5 +08:04:30
Equinox of date position of star is 06:07:58.6 +08:04:14
Star is 79 degrees from the moon. Moon is 0% illuminated.
Stellar brightness G=14.2, apparent brightess of occulting body is G=15.7
Use an exposure time of 0.35 seconds with the standard RECON-QHY system.
SNR of 9.9 per integration for unocculted signal
Expected flux drop is 80% with SNR of 8.0 for the occulted depth (per occulted point)
Apparent velocity is 19.1 km/sec on the sky relative to the star, or, 17.7 arcsec/hr.
Position angle of asteroid motion is 104.5 degrees
The recommended exposure time corresponds to 6.7 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 36.9 km.
The sky-plane scale is 3868.3 km/arcsec.
Diameter estimates:
60.0 km assuming a 5% albedo, maximum of 3.1 sec for a central chord
24.5 km assuming a 30% albedo, maximum of 1.3 sec for a central chord
Cross-track diameter of 52.1 km used for deployment plan.
Star training set for 4832_Palinurus, (2026/09/11 07:06UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.1 +07:24:35 0.4 2.89 82 Bellatrix 05:26:33.9 +06:22:18 1.6 10.41 89 63 Ori 06:06:23.6 +05:24:58 6.4 2.68 79 PPM 149933 06:08:58.2 +07:54:17 8.4 0.30 78 PPM 149916 06:08:33.6 +07:55:31 9.9 0.20 79 4832_Palinurus 06:07:58.6 +08:04:14 15.7 78 Positions are for equinox of date
Star training set for 4832_Palinurus, (2026/09/11 07:06UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 2.89 82 Bellatrix 05:25:07.8 +06:20:58 1.6 10.41 89 63 Ori 06:04:58.1 +05:25:12 6.4 2.68 79 PPM 149933 06:07:31.2 +07:54:36 8.4 0.30 78 PPM 149916 06:07:06.5 +07:55:49 9.9 0.20 79 4832_Palinurus 06:06:31.5 +08:04:30 15.7 79 Positions are for J2000