Occultation event with (22014) 99XQ96, event index number 3442
Regions able to see the event: SAmericaS
Geocentric closest approach at 2026/03/16 01:32:30 UTC
J2000 position of star is 11:11:40.7 -34:02:21
Equinox of date position of star is 11:12:56.4 -34:10:55
Star is 123 degrees from the moon. Moon is 10% illuminated.
Stellar brightness G=15.9, apparent brightess of occulting body is G=15.1
Use an exposure time of 0.60 seconds with the standard RECON-QHY system.
SNR of 3.4 per integration for unocculted signal
Expected flux drop is 33% with SNR of 1.1 for the occulted depth (per occulted point)
Apparent velocity is 16.2 km/sec on the sky relative to the star, or, 19.4 arcsec/hr.
Position angle of asteroid motion is 114.1 degrees
The recommended exposure time corresponds to 9.7 km per image.
The 1-sigma error in the time of the event is 1.8 seconds.
The 1-sigma cross-track error in the shadow position is 28.9 km.
The sky-plane scale is 3003.6 km/arcsec.
Diameter estimates:
54.5 km assuming a 5% albedo, maximum of 3.4 sec for a central chord
22.2 km assuming a 30% albedo, maximum of 1.4 sec for a central chord
Cross-track diameter of 39.5 km used for deployment plan.
Star training set for 22014_99XQ96, (2026/03/16 01:32UT) Object RA Dec mag sep mel Bet Cru 12:49:16.3 -59:49:53 1.3 30.09 93 Mu Vel 10:47:54.3 -49:33:32 2.8 16.05 111 PPM 288630 11:13:30.9 -32:34:36 6.3 1.61 124 PPM 288649 11:14:39.3 -34:05:34 8.3 0.37 123 PPM 288612 11:12:47.2 -34:09:15 9.2 0.04 123 22014_99XQ96 11:12:56.4 -34:10:55 15.1 123 Positions are for equinox of date
Star training set for 22014_99XQ96, (2026/03/16 01:32UT) Object RA Dec mag sep mel Bet Cru 12:47:43.1 -59:41:20 1.3 30.09 93 Mu Vel 10:46:46.5 -49:25:13 2.8 16.05 111 PPM 288630 11:12:14.8 -32:26:02 6.3 1.61 124 PPM 288649 11:13:23.4 -33:57:00 8.3 0.37 123 PPM 288612 11:11:31.5 -34:00:41 9.2 0.04 123 22014_99XQ96 11:11:40.7 -34:02:21 15.1 123 Positions are for J2000