Occultation event with (4832) Palinurus, event index number 4318
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/09/28 07:24:51 UTC
J2000 position of star is 06:12:51.4 +07:32:00
Equinox of date position of star is 06:14:18.3 +07:31:28
Star is 70 degrees from the moon. Moon is 97% illuminated.
Stellar brightness G=15.9, apparent brightess of occulting body is G=15.6
Use an exposure time of 1.10 seconds with the standard RECON-QHY system.
SNR of 5.5 per integration for unocculted signal
Expected flux drop is 45% with SNR of 2.5 for the occulted depth (per occulted point)
Apparent velocity is 11.8 km/sec on the sky relative to the star, or, 11.5 arcsec/hr.
Position angle of asteroid motion is 115.9 degrees
The recommended exposure time corresponds to 12.9 km per image.
The 1-sigma error in the time of the event is 0.7 seconds.
The 1-sigma cross-track error in the shadow position is 34.9 km.
The sky-plane scale is 3696.3 km/arcsec.
Diameter estimates:
60.0 km assuming a 5% albedo, maximum of 5.1 sec for a central chord
24.5 km assuming a 30% albedo, maximum of 2.1 sec for a central chord
Cross-track diameter of 52.1 km used for deployment plan.
Star training set for 4832_Palinurus, (2026/09/28 07:25UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.2 +07:24:35 0.4 4.39 66 Alhena 06:39:15.4 +16:22:27 1.9 10.75 74 PPM 150217 06:18:25.0 +07:02:27 6.4 1.13 71 PPM 150094 06:14:28.9 +07:31:31 8.2 0.04 70 4832_Palinurus 06:14:18.3 +07:31:28 15.6 70 Positions are for equinox of date
Star training set for 4832_Palinurus, (2026/09/28 07:25UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 4.39 66 Alhena 06:37:42.8 +16:23:56 1.9 10.75 74 PPM 150217 06:16:58.4 +07:03:08 6.4 1.13 71 PPM 150094 06:13:01.9 +07:32:03 8.2 0.04 70 4832_Palinurus 06:12:51.4 +07:32:00 15.6 70 Positions are for J2000