Occultation event with (4832) Palinurus, event index number 5042
Regions able to see the event: SAmericaS
Geocentric closest approach at 2026/12/05 07:45:09 UTC
J2000 position of star is 06:03:07.6 +06:01:41
Equinox of date position of star is 06:04:34.2 +06:01:32
Star is 118 degrees from the moon. Moon is 13% illuminated.
Stellar brightness G=13.1, apparent brightess of occulting body is G=15.0
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 10.2 per integration for unocculted signal
Expected flux drop is 86% with SNR of 8.8 for the occulted depth (per occulted point)
Apparent velocity is 16.5 km/sec on the sky relative to the star, or, 18.7 arcsec/hr.
Position angle of asteroid motion is 91.7 degrees
The recommended exposure time corresponds to 2.0 km per image.
The 1-sigma error in the time of the event is 0.4 seconds.
The 1-sigma cross-track error in the shadow position is 35.3 km.
The sky-plane scale is 3176.9 km/arcsec.
Diameter estimates:
60.0 km assuming a 5% albedo, maximum of 3.6 sec for a central chord
24.5 km assuming a 30% albedo, maximum of 1.5 sec for a central chord
Cross-track diameter of 52.1 km used for deployment plan.
Star training set for 4832_Palinurus, (2026/12/05 07:45UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.8 +07:24:35 0.4 2.41 120 Bellatrix 05:26:34.6 +06:22:18 1.6 9.45 127 63 Ori 06:06:24.4 +05:24:58 6.4 0.76 117 PPM 149824 06:04:45.5 +06:23:07 8.4 0.36 118 PPM 149820 06:04:33.9 +05:43:33 9.4 0.30 117 PPM 149840 06:05:18.1 +05:57:24 10.1 0.19 117 4832_Palinurus 06:04:34.2 +06:01:32 15.0 117 Positions are for equinox of date
Star training set for 4832_Palinurus, (2026/12/05 07:45UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 2.41 120 Bellatrix 05:25:07.8 +06:20:58 1.6 9.45 127 63 Ori 06:04:58.1 +05:25:12 6.4 0.76 117 PPM 149824 06:03:18.7 +06:23:17 8.4 0.36 118 PPM 149820 06:03:07.5 +05:43:42 9.4 0.30 117 PPM 149840 06:03:51.6 +05:57:35 10.1 0.19 117 4832_Palinurus 06:03:07.6 +06:01:41 15.0 118 Positions are for J2000