Occultation event with (22014) 99XQ96, event index number 794
Regions able to see the event: SAmericaS
Geocentric closest approach at 2025/03/11 03:43:25 UTC
J2000 position of star is 08:31:15.4 -14:23:02
Equinox of date position of star is 08:32:26.1 -14:28:12
Star is 36 degrees from the moon. Moon is 91% illuminated.
Stellar brightness G=12.9, apparent brightess of occulting body is G=15.0
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
Expected flux drop is 12% with SNR of 11.5 per integration
Apparent velocity is 12.0 km/sec on the sky relative to the star, or, 14.9 arcsec/hr.
The recommended exposure time corresponds to 1.4 km per image.
The 1-sigma error in the time of the event is 2.5 seconds.
The 1-sigma cross-track error in the shadow position is 27.6 km.
The sky-plane scale is 2888.4 km/arcsec.
Diameter estimates:
53.7 km assuming a 5% albedo, aximum of 4.5 sec for a central chord
21.9 km assuming a 30% albedo, maximum of 1.8 sec for a central chord
Cross-track diameter of 53.7 km used for deployment plan.
Star training set for 22014_99XQ96, (2025/03/11 03:43UT) Object RA Dec mag sep mel Sirius 06:46:15.5 -16:45:08 -1.5 25.65 52 15Rho Pup 08:08:37.0 -24:22:42 2.8 11.38 47 PPM 220100 08:27:05.8 -15:00:47 6.0 1.40 37 PPM 220257 08:33:48.2 -14:30:17 6.8 0.33 36 PPM 220241 08:32:47.1 -14:26:06 8.9 0.09 36 22014_99XQ96 08:32:26.1 -14:28:12 15.0 36 Positions are for equinox of date
Star training set for 22014_99XQ96, (2025/03/11 03:43UT) Object RA Dec mag sep mel Sirius 06:45:07.9 -16:43:28 -1.5 25.65 52 15Rho Pup 08:07:32.5 -24:18:14 2.8 11.38 47 PPM 220100 08:25:55.6 -14:55:46 6.0 1.40 37 PPM 220257 08:32:37.6 -14:25:05 6.8 0.33 36 PPM 220241 08:31:36.4 -14:20:55 8.9 0.09 36 22014_99XQ96 08:31:15.4 -14:23:02 15.0 36 Positions are for J2000