Occultation event with (22014) 99XQ96, event index number 3522
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/03/27 23:32:42 UTC
J2000 position of star is 11:05:13.7 -33:14:18
Equinox of date position of star is 11:06:29.0 -33:22:50
Star is 66 degrees from the moon. Moon is 74% illuminated.
Stellar brightness G=15.4, apparent brightess of occulting body is G=15.1
Use an exposure time of 0.55 seconds with the standard RECON-QHY system.
SNR of 5.0 per integration for unocculted signal
Expected flux drop is 44% with SNR of 2.2 for the occulted depth (per occulted point)
Apparent velocity is 16.6 km/sec on the sky relative to the star, or, 19.9 arcsec/hr.
Position angle of asteroid motion is 127.4 degrees
The recommended exposure time corresponds to 9.1 km per image.
The 1-sigma error in the time of the event is 2.2 seconds.
The 1-sigma cross-track error in the shadow position is 20.8 km.
The sky-plane scale is 3002.8 km/arcsec.
Diameter estimates:
54.5 km assuming a 5% albedo, maximum of 3.3 sec for a central chord
22.2 km assuming a 30% albedo, maximum of 1.3 sec for a central chord
Cross-track diameter of 39.5 km used for deployment plan.
Star training set for 22014_99XQ96, (2026/03/27 23:33UT) Object RA Dec mag sep mel Bet Cru 12:49:16.4 -59:49:54 1.3 31.37 96 Mu Vel 10:47:54.4 -49:33:33 2.8 16.54 77 PPM 288455 11:04:31.4 -32:06:10 6.5 1.34 65 PPM 288465 11:05:08.3 -33:35:12 7.3 0.35 66 PPM 288495 11:06:32.9 -33:13:25 9.4 0.16 66 22014_99XQ96 11:06:29.0 -33:22:50 15.1 66 Positions are for equinox of date
Star training set for 22014_99XQ96, (2026/03/27 23:33UT) Object RA Dec mag sep mel Bet Cru 12:47:43.1 -59:41:20 1.3 31.37 96 Mu Vel 10:46:46.5 -49:25:13 2.8 16.54 77 PPM 288455 11:03:16.0 -31:57:40 6.5 1.34 65 PPM 288465 11:03:53.2 -33:26:41 7.3 0.35 66 PPM 288495 11:05:17.6 -33:04:54 9.4 0.16 66 22014_99XQ96 11:05:13.7 -33:14:18 15.1 66 Positions are for J2000