Occultation event with (22014) 99XQ96, event index number 3305
Regions able to see the event: SAmericaN,SAfrica
Geocentric closest approach at 2026/02/25 01:20:19 UTC
J2000 position of star is 11:22:28.4 -34:32:28
Equinox of date position of star is 11:23:45.0 -34:41:05
Star is 112 degrees from the moon. Moon is 56% illuminated.
Stellar brightness G=13.5, apparent brightess of occulting body is G=15.2
Use an exposure time of 0.18 seconds with the standard RECON-QHY system.
SNR of 9.9 per integration for unocculted signal
Expected flux drop is 82% with SNR of 8.2 for the occulted depth (per occulted point)
Apparent velocity is 14.1 km/sec on the sky relative to the star, or, 16.7 arcsec/hr.
Position angle of asteroid motion is 89.6 degrees
The recommended exposure time corresponds to 2.5 km per image.
The 1-sigma error in the time of the event is 1.0 seconds.
The 1-sigma cross-track error in the shadow position is 38.7 km.
The sky-plane scale is 3057.0 km/arcsec.
Diameter estimates:
54.5 km assuming a 5% albedo, maximum of 3.8 sec for a central chord
22.2 km assuming a 30% albedo, maximum of 1.6 sec for a central chord
Cross-track diameter of 39.5 km used for deployment plan.
Star training set for 22014_99XQ96, (2026/02/25 01:20UT) Object RA Dec mag sep mel Bet Cru 12:49:16.1 -59:49:52 1.3 28.74 129 Mu Vel 10:47:54.2 -49:33:31 2.8 16.26 111 PPM 288956 11:29:15.7 -35:28:23 6.4 1.38 114 PPM 288872 11:25:29.9 -34:48:45 8.4 0.38 113 PPM 288835 11:23:49.0 -34:35:55 9.1 0.09 112 22014_99XQ96 11:23:45.0 -34:41:05 15.2 113 Positions are for equinox of date
Star training set for 22014_99XQ96, (2026/02/25 01:20UT) Object RA Dec mag sep mel Bet Cru 12:47:43.1 -59:41:20 1.3 28.74 129 Mu Vel 10:46:46.5 -49:25:13 2.8 16.26 111 PPM 288956 11:27:58.7 -35:19:44 6.4 1.38 114 PPM 288872 11:24:13.2 -34:40:07 8.4 0.38 113 PPM 288835 11:22:32.4 -34:27:17 9.1 0.09 112 22014_99XQ96 11:22:28.4 -34:32:28 15.2 112 Positions are for J2000