Occultation event with (22014) 99XQ96, event index number 900
Regions able to see the event: SAmericaN
Geocentric closest approach at 2025/04/12 23:36:25 UTC
J2000 position of star is 08:28:52.6 -12:06:40
Equinox of date position of star is 08:30:04.5 -12:11:47
Star is 71 degrees from the moon. Moon is 100% illuminated.
Stellar brightness G=16.7, apparent brightess of occulting body is G=15.3
Use an exposure time of 1.45 seconds with the standard RECON-QHY system.
SNR of 3.1 per integration for unocculted signal
Expected flux drop is 22% with SNR of 0.7 for the occulted depth (per occulted point)
Apparent velocity is 9.9 km/sec on the sky relative to the star, or, 11.4 arcsec/hr.
The recommended exposure time corresponds to 14.4 km per image.
The 1-sigma error in the time of the event is 2.6 seconds.
The 1-sigma cross-track error in the shadow position is 31.8 km.
The sky-plane scale is 3148.3 km/arcsec.
Diameter estimates:
54.0 km assuming a 5% albedo, aximum of 5.4 sec for a central chord
22.0 km assuming a 30% albedo, maximum of 2.2 sec for a central chord
Cross-track diameter of 54.0 km used for deployment plan.
Star training set for 22014_99XQ96, (2025/04/12 23:36UT) Object RA Dec mag sep mel Sirius 06:46:15.7 -16:45:09 -1.5 25.52 95 15Rho Pup 08:08:37.3 -24:22:43 2.8 13.20 75 PPM 220116 08:27:53.5 -12:37:09 5.4 0.68 72 PPM 220122 08:28:01.9 -12:20:26 8.1 0.52 72 PPM 220180 08:30:33.1 -12:10:14 8.6 0.12 71 22014_99XQ96 08:30:04.5 -12:11:47 15.3 71 Positions are for equinox of date
Star training set for 22014_99XQ96, (2025/04/12 23:36UT) Object RA Dec mag sep mel Sirius 06:45:07.9 -16:43:28 -1.5 25.52 95 15Rho Pup 08:07:32.5 -24:18:14 2.8 13.20 75 PPM 220116 08:26:41.8 -12:32:05 5.4 0.68 72 PPM 220122 08:26:50.1 -12:15:22 8.1 0.52 72 PPM 220180 08:29:21.1 -12:05:06 8.6 0.12 71 22014_99XQ96 08:28:52.6 -12:06:40 15.3 71 Positions are for J2000