Occultation event with (14690) 00AR25, event index number 3372
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/03/08 00:05:11 UTC
J2000 position of star is 12:01:36.6 +00:12:02
Equinox of date position of star is 12:02:57.1 +00:03:17
Star is 40 degrees from the moon. Moon is 80% illuminated.
Stellar brightness G=16.6, apparent brightess of occulting body is G=15.5
Use an exposure time of 1.20 seconds with the standard RECON-QHY system.
SNR of 3.0 per integration for unocculted signal
Expected flux drop is 27% with SNR of 0.8 for the occulted depth (per occulted point)
Apparent velocity is 16.5 km/sec on the sky relative to the star, or, 18.6 arcsec/hr.
Position angle of asteroid motion is 110.2 degrees
The recommended exposure time corresponds to 19.8 km per image.
The 1-sigma error in the time of the event is 1.7 seconds.
The 1-sigma cross-track error in the shadow position is 25.6 km.
The sky-plane scale is 3193.5 km/arcsec.
Diameter estimates:
45.5 km assuming a 5% albedo, maximum of 2.8 sec for a central chord
18.6 km assuming a 30% albedo, maximum of 1.1 sec for a central chord
Cross-track diameter of 43.2 km used for deployment plan.
Star training set for 14690_00AR25, (2026/03/08 00:05UT) Object RA Dec mag sep mel Spica 13:26:34.6 -11:17:50 1.0 23.67 17 Denebola 11:50:23.6 +14:25:32 2.1 14.70 51 10 Vir 12:11:01.8 +01:45:04 5.9 2.64 39 PPM 158389 12:00:23.7 +00:23:06 7.3 0.72 41 PPM 158433 12:03:17.8 -00:03:49 9.4 0.15 40 14690_00AR25 12:02:57.1 +00:03:17 15.5 40 Positions are for equinox of date
Star training set for 14690_00AR25, (2026/03/08 00:05UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 23.67 17 Denebola 11:49:02.7 +14:34:16 2.1 14.70 51 10 Vir 12:09:41.4 +01:53:48 5.9 2.64 39 PPM 158389 11:59:03.2 +00:31:51 7.3 0.72 41 PPM 158433 12:01:57.3 +00:04:55 9.4 0.15 40 14690_00AR25 12:01:36.6 +00:12:02 15.5 40 Positions are for J2000