Occultation event with (4832) Palinurus, event index number 4151
Regions able to see the event: NZ
Geocentric closest approach at 2026/09/01 16:59:56 UTC
J2000 position of star is 06:01:38.9 +08:20:30
Equinox of date position of star is 06:03:06.2 +08:20:24
Star is 58 degrees from the moon. Moon is 78% illuminated.
Stellar brightness G=15.6, apparent brightess of occulting body is G=15.7
Use an exposure time of 0.55 seconds with the standard RECON-QHY system.
SNR of 4.3 per integration for unocculted signal
Expected flux drop is 53% with SNR of 2.3 for the occulted depth (per occulted point)
Apparent velocity is 23.0 km/sec on the sky relative to the star, or, 20.9 arcsec/hr.
Position angle of asteroid motion is 100.7 degrees
The recommended exposure time corresponds to 12.6 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 35.5 km.
The sky-plane scale is 3961.0 km/arcsec.
Diameter estimates:
60.0 km assuming a 5% albedo, maximum of 2.6 sec for a central chord
24.5 km assuming a 30% albedo, maximum of 1.1 sec for a central chord
Cross-track diameter of 52.1 km used for deployment plan.
Star training set for 4832_Palinurus, (2026/09/01 17:00UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.0 +07:24:35 0.4 1.86 57 Bellatrix 05:26:33.8 +06:22:18 1.6 9.27 50 PPM 149639 05:56:21.1 +05:51:49 6.4 2.99 57 PPM 149761 06:02:09.4 +08:17:36 8.4 0.24 58 4832_Palinurus 06:03:06.2 +08:20:24 15.7 59 Positions are for equinox of date
Star training set for 4832_Palinurus, (2026/09/01 17:00UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 1.86 57 Bellatrix 05:25:07.8 +06:20:58 1.6 9.27 50 PPM 149639 05:54:55.4 +05:51:39 6.4 2.99 57 PPM 149761 06:00:42.2 +08:17:39 8.4 0.24 58 4832_Palinurus 06:01:38.9 +08:20:30 15.7 58 Positions are for J2000