Occultation event with (4832) Palinurus, event index number 1354
Regions able to see the event: SAmericaN
Geocentric closest approach at 2025/10/10 08:18:41 UTC
J2000 position of star is 04:00:39.6 -02:33:46
Equinox of date position of star is 04:01:57.5 -02:29:30
Star is 28 degrees from the moon. Moon is 86% illuminated.
Stellar brightness G=13.4, apparent brightess of occulting body is G=14.9
Use an exposure time of 0.16 seconds with the standard RECON-QHY system.
SNR of 9.8 per integration for unocculted signal
Expected flux drop is 80% with SNR of 7.8 for the occulted depth (per occulted point)
Apparent velocity is 11.3 km/sec on the sky relative to the star, or, 13.6 arcsec/hr.
Position angle of asteroid motion is 44.6 degrees
The recommended exposure time corresponds to 1.8 km per image.
The 1-sigma error in the time of the event is 2.8 seconds.
The 1-sigma cross-track error in the shadow position is 16.6 km.
The sky-plane scale is 2973.2 km/arcsec.
Diameter estimates:
60.0 km assuming a 5% albedo, aximum of 5.3 sec for a central chord
24.5 km assuming a 30% albedo, maximum of 2.2 sec for a central chord
Cross-track diameter of 52.1 km used for deployment plan.
Star training set for 4832_Palinurus, (2025/10/10 08:19UT) Object RA Dec mag sep mel Rigel 05:15:46.7 -08:10:26 0.1 19.23 39 Menkar 03:03:37.8 +04:11:21 2.5 16.03 25 35 Eri 04:02:50.5 -01:28:45 5.3 1.04 27 PPM 186407 03:59:55.9 -02:34:46 7.8 0.51 28 PPM 186446 04:02:46.7 -02:34:24 9.6 0.22 28 4832_Palinurus 04:01:57.5 -02:29:30 14.9 28 Positions are for equinox of date
Star training set for 4832_Palinurus, (2025/10/10 08:19UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 19.23 39 Menkar 03:02:16.8 +04:05:21 2.5 16.03 25 35 Eri 04:01:32.1 -01:32:59 5.3 1.04 27 PPM 186407 03:58:38.0 -02:39:05 7.8 0.51 28 PPM 186446 04:01:28.8 -02:38:38 9.6 0.22 28 4832_Palinurus 04:00:39.6 -02:33:46 14.9 28 Positions are for J2000