Occultation event with (22014) 99XQ96, event index number 800
Regions able to see the event: Australia
Geocentric closest approach at 2025/03/11 15:11:53 UTC
J2000 position of star is 08:31:06.6 -14:21:09
Equinox of date position of star is 08:32:17.2 -14:26:20
Star is 36 degrees from the moon. Moon is 93% illuminated.
Stellar brightness G=16.6, apparent brightess of occulting body is G=15.0
Use an exposure time of 1.35 seconds with the standard RECON-QHY system.
Expected flux drop is 81% with SNR of 3.0 per integration
Apparent velocity is 11.9 km/sec on the sky relative to the star, or, 14.8 arcsec/hr.
The recommended exposure time corresponds to 16.0 km per image.
The 1-sigma error in the time of the event is 2.4 seconds.
The 1-sigma cross-track error in the shadow position is 30.0 km.
The sky-plane scale is 2891.3 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 15:12UT) Object RA Dec mag sep mel Sirius 06:46:15.5 -16:45:08 -1.5 25.62 55 15Rho Pup 08:08:37.0 -24:22:42 2.8 11.39 47 PPM 220100 08:27:05.8 -15:00:47 6.0 1.38 37 PPM 220223 08:32:14.6 -14:05:54 7.9 0.34 36 PPM 220241 08:32:47.1 -14:26:06 8.9 0.12 36 22014_99XQ96 08:32:17.2 -14:26:20 15.0 36 Positions are for equinox of date
Star training set for 22014_99XQ96, (2025/03/11 15:12UT) Object RA Dec mag sep mel Sirius 06:45:07.9 -16:43:28 -1.5 25.62 55 15Rho Pup 08:07:32.5 -24:18:14 2.8 11.39 47 PPM 220100 08:25:55.6 -14:55:46 6.0 1.38 37 PPM 220223 08:31:03.8 -14:00:44 7.9 0.34 36 PPM 220241 08:31:36.4 -14:20:55 8.9 0.12 36 22014_99XQ96 08:31:06.6 -14:21:09 15.0 36 Positions are for J2000