Occultation event with (14690) 00AR25, event index number 786
Regions able to see the event: SAmericaN
Geocentric closest approach at 2025/03/10 03:10:46 UTC
J2000 position of star is 09:53:27.2 +15:50:29
Equinox of date position of star is 09:54:49.6 +15:43:18
Star is 23 degrees from the moon. Moon is 84% illuminated.
Stellar brightness G=12.9, apparent brightess of occulting body is G=15.7
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
Expected flux drop is 7% with SNR of 11.4 per integration
Apparent velocity is 14.9 km/sec on the sky relative to the star, or, 16.7 arcsec/hr.
The recommended exposure time corresponds to 1.8 km per image.
The 1-sigma error in the time of the event is 3.2 seconds.
The 1-sigma cross-track error in the shadow position is 22.6 km.
The sky-plane scale is 3203.8 km/arcsec.
Diameter estimates:
44.9 km assuming a 5% albedo, aximum of 3.0 sec for a central chord
18.3 km assuming a 30% albedo, maximum of 1.2 sec for a central chord
Cross-track diameter of 44.9 km used for deployment plan.
Star training set for 14690_00AR25, (2025/03/10 03:11UT) Object RA Dec mag sep mel Regulus 10:09:42.6 +11:50:35 1.3 5.30 28 PPM 127101 10:07:02.7 +15:38:02 6.2 2.94 26 PPM 126818 09:50:18.0 +15:26:51 8.5 1.12 22 PPM 126896 09:54:55.9 +15:41:50 9.1 0.04 23 14690_00AR25 09:54:49.6 +15:43:18 15.7 23 Positions are for equinox of date
Star training set for 14690_00AR25, (2025/03/10 03:11UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 5.30 28 PPM 127101 10:05:40.8 +15:45:26 6.2 2.94 26 PPM 126818 09:48:55.5 +15:33:56 8.5 1.12 22 PPM 126896 09:53:33.5 +15:49:01 9.1 0.04 23 14690_00AR25 09:53:27.2 +15:50:29 15.7 23 Positions are for J2000