Occultation event with (76867) 00YM5, event index number 4914
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/11/28 04:41:19 UTC
J2000 position of star is 04:03:35.5 +38:49:46
Equinox of date position of star is 04:05:23.6 +38:54:06
Star is 51 degrees from the moon. Moon is 82% illuminated.
Stellar brightness G=16.3, apparent brightess of occulting body is G=15.3
Use an exposure time of 0.85 seconds with the standard RECON-QHY system.
SNR of 3.1 per integration for unocculted signal
Expected flux drop is 29% with SNR of 0.9 for the occulted depth (per occulted point)
Apparent velocity is 19.1 km/sec on the sky relative to the star, or, 22.6 arcsec/hr.
Position angle of asteroid motion is 95.3 degrees
The recommended exposure time corresponds to 16.3 km per image.
The 1-sigma error in the time of the event is 0.9 seconds.
The 1-sigma cross-track error in the shadow position is 27.7 km.
The sky-plane scale is 3052.4 km/arcsec.
Diameter estimates:
48.3 km assuming a 5% albedo, maximum of 2.5 sec for a central chord
19.7 km assuming a 30% albedo, maximum of 1.0 sec for a central chord
Cross-track diameter of 42.8 km used for deployment plan.
Star training set for 76867_00YM5, (2026/11/28 04:41UT) Object RA Dec mag sep mel Aldebaran 04:37:28.1 +16:33:40 0.8 23.42 47 44Zet Per 03:55:49.8 +31:57:41 2.8 7.21 53 PPM 068974 04:01:27.8 +38:53:42 6.4 0.76 52 PPM 069036 04:04:17.8 +39:10:12 7.7 0.34 51 PPM 069047 04:05:01.1 +39:02:43 10.1 0.16 51 76867_00YM5 04:05:23.6 +38:54:06 15.3 50 Positions are for equinox of date
Star training set for 76867_00YM5, (2026/11/28 04:41UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 23.42 47 44Zet Per 03:54:07.9 +31:53:01 2.8 7.21 53 PPM 068974 03:59:39.9 +38:49:14 6.4 0.76 52 PPM 069036 04:02:29.5 +39:05:49 7.7 0.34 51 PPM 069047 04:03:12.9 +38:58:22 10.1 0.16 51 76867_00YM5 04:03:35.5 +38:49:46 15.3 51 Positions are for J2000