Occultation event with (4805) Asteropaios, event index number 4867
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/11/25 00:47:04 UTC
J2000 position of star is 04:16:45.5 +29:28:41
Equinox of date position of star is 04:18:26.5 +29:32:34
Star is 3 degrees from the moon. Moon is 100% illuminated.
Stellar brightness G=15.7, apparent brightess of occulting body is G=14.6
Use an exposure time of 0.85 seconds with the standard RECON-QHY system.
SNR of 4.7 per integration for unocculted signal
Expected flux drop is 26% with SNR of 1.2 for the occulted depth (per occulted point)
Apparent velocity is 16.7 km/sec on the sky relative to the star, or, 21.1 arcsec/hr.
Position angle of asteroid motion is 72.4 degrees
The recommended exposure time corresponds to 14.2 km per image.
The 1-sigma error in the time of the event is 0.6 seconds.
The 1-sigma cross-track error in the shadow position is 30.8 km.
The sky-plane scale is 2846.3 km/arcsec.
Diameter estimates:
56.8 km assuming a 5% albedo, maximum of 3.4 sec for a central chord
23.2 km assuming a 30% albedo, maximum of 1.4 sec for a central chord
Cross-track diameter of 57.6 km used for deployment plan.
Star training set for 4805_Asteropaios, (2026/11/25 00:47UT) Object RA Dec mag sep mel Aldebaran 04:37:28.0 +16:33:40 0.8 13.69 10 44Zet Per 03:55:49.8 +31:57:40 2.8 5.43 8 PPM 069410 04:27:49.4 +31:29:50 5.3 2.81 5 PPM 093364 04:16:52.0 +29:57:59 8.2 0.54 4 PPM 093388 04:18:45.8 +29:32:01 11.2 0.07 3 4805_Asteropai 04:18:26.5 +29:32:34 14.6 3 Positions are for equinox of date
Star training set for 4805_Asteropaios, (2026/11/25 00:47UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 13.69 10 44Zet Per 03:54:07.9 +31:53:01 2.8 5.43 8 PPM 069410 04:26:06.4 +31:26:18 5.3 2.81 5 PPM 093364 04:15:10.7 +29:54:03 8.2 0.54 4 PPM 093388 04:17:04.7 +29:28:09 11.2 0.07 3 4805_Asteropai 04:16:45.5 +29:28:41 14.6 3 Positions are for J2000