Occultation event with (76867) 00YM5, event index number 4549
Regions able to see the event: Europe
Geocentric closest approach at 2026/11/02 22:30:50 UTC
J2000 position of star is 04:21:47.3 +37:58:46
Equinox of date position of star is 04:23:35.4 +38:02:27
Star is 75 degrees from the moon. Moon is 38% illuminated.
Stellar brightness G=11.5, apparent brightess of occulting body is G=15.5
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 28.0 per integration for unocculted signal
Expected flux drop is 97% with SNR of 27.3 for the occulted depth (per occulted point)
Apparent velocity is 17.2 km/sec on the sky relative to the star, or, 19.8 arcsec/hr.
Position angle of asteroid motion is 113.3 degrees
The recommended exposure time corresponds to 2.1 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 31.7 km.
The sky-plane scale is 3115.9 km/arcsec.
Diameter estimates:
48.3 km assuming a 5% albedo, maximum of 2.8 sec for a central chord
19.7 km assuming a 30% albedo, maximum of 1.1 sec for a central chord
Cross-track diameter of 42.8 km used for deployment plan.
Star training set for 76867_00YM5, (2026/11/02 22:31UT) Object RA Dec mag sep mel Aldebaran 04:37:27.8 +16:33:40 0.8 21.70 75 44Zet Per 03:55:49.6 +31:57:40 2.8 8.32 81 50 Per 04:10:24.4 +38:06:27 5.5 2.60 77 PPM 069352 04:23:04.8 +38:18:21 8.0 0.28 75 PPM 069368 04:24:41.7 +38:00:45 9.0 0.22 75 76867_00YM5 04:23:35.4 +38:02:27 15.5 75 Positions are for equinox of date
Star training set for 76867_00YM5, (2026/11/02 22:31UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 21.70 75 44Zet Per 03:54:07.9 +31:53:01 2.8 8.32 81 50 Per 04:08:37.0 +38:02:18 5.5 2.60 77 PPM 069352 04:21:16.5 +38:14:38 8.0 0.28 75 PPM 069368 04:22:53.6 +37:57:05 9.0 0.22 75 76867_00YM5 04:21:47.3 +37:58:46 15.5 75 Positions are for J2000