Occultation event with (4832) Palinurus, event index number 4186
Regions able to see the event: Australia
Geocentric closest approach at 2026/09/05 18:25:10 UTC
J2000 position of star is 06:03:49.1 +08:14:00
Equinox of date position of star is 06:05:16.3 +08:13:50
Star is 20 degrees from the moon. Moon is 34% illuminated.
Stellar brightness G=12.1, apparent brightess of occulting body is G=15.7
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 19.7 per integration for unocculted signal
Expected flux drop is 97% with SNR of 19.0 for the occulted depth (per occulted point)
Apparent velocity is 21.3 km/sec on the sky relative to the star, or, 19.6 arcsec/hr.
Position angle of asteroid motion is 102.2 degrees
The recommended exposure time corresponds to 2.6 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 35.2 km.
The sky-plane scale is 3922.3 km/arcsec.
Diameter estimates:
60.0 km assuming a 5% albedo, maximum of 2.8 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, (2026/09/05 18:25UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.0 +07:24:35 0.4 2.30 21 Bellatrix 05:26:33.8 +06:22:18 1.6 9.78 24 63 Ori 06:06:23.6 +05:24:58 6.4 2.83 22 PPM 149829 06:04:59.7 +08:35:11 8.0 0.36 19 PPM 149825 06:04:49.9 +08:11:12 8.8 0.12 20 4832_Palinurus 06:05:16.3 +08:13:50 15.7 20 Positions are for equinox of date
Star training set for 4832_Palinurus, (2026/09/05 18:25UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 2.30 21 Bellatrix 05:25:07.8 +06:20:58 1.6 9.78 24 63 Ori 06:04:58.1 +05:25:12 6.4 2.83 22 PPM 149829 06:03:32.3 +08:35:21 8.0 0.36 19 PPM 149825 06:03:22.7 +08:11:22 8.8 0.12 20 4832_Palinurus 06:03:49.1 +08:14:00 15.7 20 Positions are for J2000