Occultation event with (14690) 00AR25, event index number 3682
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/04/25 06:17:04 UTC
J2000 position of star is 11:40:33.1 +02:05:29
Equinox of date position of star is 11:41:54.1 +01:56:44
Star is 35 degrees from the moon. Moon is 63% illuminated.
Stellar brightness G=13.5, apparent brightess of occulting body is G=15.9
Use an exposure time of 0.17 seconds with the standard RECON-QHY system.
SNR of 9.7 per integration for unocculted signal
Expected flux drop is 90% with SNR of 8.7 for the occulted depth (per occulted point)
Apparent velocity is 10.5 km/sec on the sky relative to the star, or, 11.4 arcsec/hr.
Position angle of asteroid motion is 108.0 degrees
The recommended exposure time corresponds to 1.8 km per image.
The 1-sigma error in the time of the event is 2.6 seconds.
The 1-sigma cross-track error in the shadow position is 26.0 km.
The sky-plane scale is 3311.9 km/arcsec.
Diameter estimates:
45.5 km assuming a 5% albedo, maximum of 4.3 sec for a central chord
18.6 km assuming a 30% albedo, maximum of 1.8 sec for a central chord
Cross-track diameter of 43.2 km used for deployment plan.
Star training set for 14690_00AR25, (2026/04/25 06:17UT) Object RA Dec mag sep mel Regulus 10:09:46.2 +11:50:15 1.3 24.88 10 Denebola 11:50:24.0 +14:25:30 2.1 12.65 33 89 Leo 11:35:42.8 +02:54:49 6.2 1.82 33 PPM 158073 11:40:49.1 +02:42:04 8.4 0.80 35 PPM 158087 11:41:43.1 +01:27:10 9.2 0.49 35 PPM 158106 11:42:58.3 +01:46:38 10.7 0.32 35 14690_00AR25 11:41:54.1 +01:56:44 15.9 35 Positions are for equinox of date
Star training set for 14690_00AR25, (2026/04/25 06:17UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 24.88 10 Denebola 11:49:02.7 +14:34:16 2.1 12.65 33 89 Leo 11:34:21.6 +03:03:34 6.2 1.82 33 PPM 158073 11:39:28.0 +02:50:50 8.4 0.80 35 PPM 158087 11:40:22.1 +01:35:56 9.2 0.49 35 PPM 158106 11:41:37.3 +01:55:24 10.7 0.32 35 14690_00AR25 11:40:33.1 +02:05:29 15.9 35 Positions are for J2000