Occultation event with (4832) Palinurus, event index number 3104
Regions able to see the event: Australia
Geocentric closest approach at 2026/01/03 11:57:34 UTC
J2000 position of star is 03:24:36.5 -03:23:24
Equinox of date position of star is 03:25:54.9 -03:17:58
Star is 61 degrees from the moon. Moon is 100% illuminated.
Stellar brightness G=16.1, apparent brightess of occulting body is G=15.1
Use an exposure time of 1.30 seconds with the standard RECON-QHY system.
SNR of 4.7 per integration for unocculted signal
Expected flux drop is 29% with SNR of 1.3 for the occulted depth (per occulted point)
Apparent velocity is 9.9 km/sec on the sky relative to the star, or, 11.3 arcsec/hr.
Position angle of asteroid motion is 143.3 degrees
The recommended exposure time corresponds to 12.8 km per image.
The 1-sigma error in the time of the event is 2.2 seconds.
The 1-sigma cross-track error in the shadow position is 28.2 km.
The sky-plane scale is 3148.3 km/arcsec.
Diameter estimates:
60.0 km assuming a 5% albedo, maximum of 6.1 sec for a central chord
24.5 km assuming a 30% albedo, maximum of 2.5 sec for a central chord
Cross-track diameter of 52.1 km used for deployment plan.
Star training set for 4832_Palinurus, (2026/01/03 11:58UT) Object RA Dec mag sep mel Aldebaran 04:37:25.0 +16:33:34 0.8 26.58 36 Menkar 03:03:38.5 +04:11:25 2.5 9.33 62 17 Eri 03:31:54.6 -04:59:15 4.7 2.25 61 PPM 185738 03:25:50.9 -03:26:40 8.5 0.15 61 4832_Palinurus 03:25:54.9 -03:17:58 15.1 61 Positions are for equinox of date
Star training set for 4832_Palinurus, (2026/01/03 11:58UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 26.58 36 Menkar 03:02:16.8 +04:05:21 2.5 9.33 62 17 Eri 03:30:37.1 -05:04:30 4.7 2.25 61 PPM 185738 03:24:32.6 -03:32:06 8.5 0.15 61 4832_Palinurus 03:24:36.5 -03:23:24 15.1 61 Positions are for J2000