Occultation event with (4832) Palinurus, event index number 4461
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/10/23 07:11:54 UTC
J2000 position of star is 06:15:54.1 +06:42:52
Equinox of date position of star is 06:17:20.7 +06:42:13
Star is 101 degrees from the moon. Moon is 90% illuminated.
Stellar brightness G=11.1, apparent brightess of occulting body is G=15.5
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 35.4 per integration for unocculted signal
Expected flux drop is 98% with SNR of 34.8 for the occulted depth (per occulted point)
Apparent velocity is 4.6 km/sec on the sky relative to the star, or, 4.8 arcsec/hr.
Position angle of asteroid motion is 18.0 degrees
The recommended exposure time corresponds to 0.5 km per image.
The 1-sigma error in the time of the event is 7.8 seconds.
The 1-sigma cross-track error in the shadow position is 3.0 km.
The sky-plane scale is 3450.5 km/arcsec.
Diameter estimates:
60.0 km assuming a 5% albedo, maximum of 13.2 sec for a central chord
24.5 km assuming a 30% albedo, maximum of 5.4 sec for a central chord
Cross-track diameter of 52.1 km used for deployment plan.
Star training set for 4832_Palinurus, (2026/10/23 07:12UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.4 +07:24:35 0.4 5.19 96 Alhena 06:39:15.6 +16:22:27 1.9 11.06 106 PPM 150217 06:18:25.2 +07:02:27 6.4 0.43 102 PPM 150218 06:18:29.7 +06:56:44 8.1 0.37 102 PPM 150158 06:16:39.5 +06:52:59 8.7 0.25 101 4832_Palinurus 06:17:20.7 +06:42:13 15.5 102 Positions are for equinox of date
Star training set for 4832_Palinurus, (2026/10/23 07:12UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 5.19 96 Alhena 06:37:42.8 +16:23:56 1.9 11.06 106 PPM 150217 06:16:58.4 +07:03:08 6.4 0.43 102 PPM 150218 06:17:02.9 +06:57:26 8.1 0.37 102 PPM 150158 06:15:12.8 +06:53:36 8.7 0.25 101 4832_Palinurus 06:15:54.1 +06:42:52 15.5 101 Positions are for J2000