Occultation event with (14690) 00AR25, event index number 3228
Regions able to see the event: Australia
Geocentric closest approach at 2026/02/09 17:44:39 UTC
J2000 position of star is 12:11:33.6 -00:41:33
Equinox of date position of star is 12:12:53.9 -00:50:16
Star is 51 degrees from the moon. Moon is 48% illuminated.
Stellar brightness G=15.0, apparent brightess of occulting body is G=15.9
Use an exposure time of 0.85 seconds with the standard RECON-QHY system.
SNR of 9.7 per integration for unocculted signal
Expected flux drop is 70% with SNR of 6.8 for the occulted depth (per occulted point)
Apparent velocity is 9.6 km/sec on the sky relative to the star, or, 10.4 arcsec/hr.
Position angle of asteroid motion is 108.6 degrees
The recommended exposure time corresponds to 8.2 km per image.
The 1-sigma error in the time of the event is 2.9 seconds.
The 1-sigma cross-track error in the shadow position is 26.1 km.
The sky-plane scale is 3337.6 km/arcsec.
Diameter estimates:
45.5 km assuming a 5% albedo, maximum of 4.7 sec for a central chord
18.6 km assuming a 30% albedo, maximum of 1.9 sec for a central chord
Cross-track diameter of 43.2 km used for deployment plan.
Star training set for 14690_00AR25, (2026/02/09 17:45UT) Object RA Dec mag sep mel Spica 13:26:34.3 -11:17:48 1.0 21.07 30 Denebola 11:50:23.4 +14:25:34 2.1 16.25 64 13 Vir 12:20:00.7 -00:55:56 5.9 1.78 49 PPM 158596 12:12:45.7 +00:02:55 8.5 0.89 51 PPM 178707 12:12:11.4 -00:35:23 10.0 0.30 51 PPM 178711 12:13:16.4 -00:37:49 10.7 0.23 51 14690_00AR25 12:12:53.9 -00:50:16 15.9 50 Positions are for equinox of date
Star training set for 14690_00AR25, (2026/02/09 17:45UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 21.07 30 Denebola 11:49:02.7 +14:34:16 2.1 16.25 64 13 Vir 12:18:40.4 -00:47:14 5.9 1.78 49 PPM 158596 12:11:25.4 +00:11:37 8.5 0.89 51 PPM 178707 12:10:51.1 -00:26:40 10.0 0.30 51 PPM 178711 12:11:56.1 -00:29:07 10.7 0.23 51 14690_00AR25 12:11:33.6 -00:41:33 15.9 51 Positions are for J2000