Occultation event with (22014) 99XQ96, event index number 3270
Regions able to see the event: SAfrica,Australia
Geocentric closest approach at 2026/02/19 19:05:44 UTC
J2000 position of star is 11:25:13.2 -34:29:48
Equinox of date position of star is 11:26:30.0 -34:38:26
Star is 146 degrees from the moon. Moon is 6% illuminated.
Stellar brightness G=14.4, apparent brightess of occulting body is G=15.2
Use an exposure time of 0.45 seconds with the standard RECON-QHY system.
SNR of 9.6 per integration for unocculted signal
Expected flux drop is 68% with SNR of 6.6 for the occulted depth (per occulted point)
Apparent velocity is 13.5 km/sec on the sky relative to the star, or, 15.7 arcsec/hr.
Position angle of asteroid motion is 81.2 degrees
The recommended exposure time corresponds to 6.1 km per image.
The 1-sigma error in the time of the event is 0.5 seconds.
The 1-sigma cross-track error in the shadow position is 39.1 km.
The sky-plane scale is 3082.2 km/arcsec.
Diameter estimates:
54.5 km assuming a 5% albedo, maximum of 4.0 sec for a central chord
22.2 km assuming a 30% albedo, maximum of 1.7 sec for a central chord
Cross-track diameter of 39.5 km used for deployment plan.
Star training set for 22014_99XQ96, (2026/02/19 19:06UT) Object RA Dec mag sep mel Bet Cru 12:49:16.0 -59:49:52 1.3 28.57 121 Mu Vel 10:47:54.2 -49:33:31 2.8 16.52 130 PPM 288956 11:29:15.7 -35:28:23 6.4 1.01 146 PPM 288875 11:25:47.8 -34:25:48 8.0 0.26 146 PPM 288904 11:27:06.6 -34:42:21 9.9 0.14 146 22014_99XQ96 11:26:30.0 -34:38:26 15.2 146 Positions are for equinox of date
Star training set for 22014_99XQ96, (2026/02/19 19:06UT) Object RA Dec mag sep mel Bet Cru 12:47:43.1 -59:41:20 1.3 28.57 121 Mu Vel 10:46:46.5 -49:25:13 2.8 16.52 130 PPM 288956 11:27:58.7 -35:19:44 6.4 1.01 146 PPM 288875 11:24:31.0 -34:17:10 8.0 0.26 146 PPM 288904 11:25:49.8 -34:33:42 9.9 0.14 146 22014_99XQ96 11:25:13.2 -34:29:48 15.2 146 Positions are for J2000