Occultation event with (14690) 00AR25, event index number 3560
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/04/01 07:14:07 UTC
J2000 position of star is 11:49:52.4 +01:16:35
Equinox of date position of star is 11:51:13.2 +01:07:49
Star is 6 degrees from the moon. Moon is 99% illuminated.
Stellar brightness G=14.0, apparent brightess of occulting body is G=15.6
Use an exposure time of 0.25 seconds with the standard RECON-QHY system.
SNR of 9.1 per integration for unocculted signal
Expected flux drop is 81% with SNR of 7.4 for the occulted depth (per occulted point)
Apparent velocity is 16.4 km/sec on the sky relative to the star, or, 18.6 arcsec/hr.
Position angle of asteroid motion is 109.9 degrees
The recommended exposure time corresponds to 4.1 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 25.2 km.
The sky-plane scale is 3191.5 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, (2026/04/01 07:14UT) Object RA Dec mag sep mel Spica 13:26:34.8 -11:17:51 1.0 26.76 22 Denebola 11:50:23.8 +14:25:31 2.1 13.30 18 5Bet Vir 11:52:03.7 +01:37:00 3.6 0.53 6 PPM 158245 11:51:07.5 +02:05:08 8.0 0.96 6 5Bet Vir 11:52:03.7 +01:37:00 3.6 0.53 6 PPM 158256 11:51:47.6 +00:51:39 10.1 0.31 5 14690_00AR25 11:51:13.2 +01:07:49 15.6 5 Positions are for equinox of date
Star training set for 14690_00AR25, (2026/04/01 07:14UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 26.76 22 Denebola 11:49:02.7 +14:34:16 2.1 13.30 18 5Bet Vir 11:50:43.0 +01:45:46 3.6 0.53 6 PPM 158245 11:49:46.7 +02:13:54 8.0 0.96 6 5Bet Vir 11:50:43.0 +01:45:46 3.6 0.53 6 PPM 158256 11:50:26.9 +01:00:24 10.1 0.31 5 14690_00AR25 11:49:52.4 +01:16:35 15.6 6 Positions are for J2000