Occultation event with (38050) Bias, event index number 3302
Regions able to see the event: SAmericaN,SAmericaS
Geocentric closest approach at 2026/02/24 03:00:54 UTC
J2000 position of star is 10:47:47.1 -26:22:15
Equinox of date position of star is 10:49:02.2 -26:30:33
Star is 114 degrees from the moon. Moon is 46% illuminated.
Stellar brightness G=15.2, apparent brightess of occulting body is G=15.0
Use an exposure time of 0.95 seconds with the standard RECON-QHY system.
SNR of 7.8 per integration for unocculted signal
Expected flux drop is 44% with SNR of 3.5 for the occulted depth (per occulted point)
Apparent velocity is 15.9 km/sec on the sky relative to the star, or, 17.9 arcsec/hr.
Position angle of asteroid motion is 108.8 degrees
The recommended exposure time corresponds to 15.1 km per image.
The 1-sigma error in the time of the event is 1.3 seconds.
The 1-sigma cross-track error in the shadow position is 34.7 km.
The sky-plane scale is 3191.8 km/arcsec.
Diameter estimates:
63.4 km assuming a 5% albedo, maximum of 4.0 sec for a central chord
25.9 km assuming a 30% albedo, maximum of 1.6 sec for a central chord
Cross-track diameter of 61.6 km used for deployment plan.
Star training set for 38050_Bias, (2026/02/24 03:01UT) Object RA Dec mag sep mel Bet Cru 12:49:16.1 -59:49:52 1.3 39.18 134 4Gam Crv 12:17:09.3 -17:41:13 2.6 22.19 130 PPM 257916 10:38:27.6 -27:32:56 4.9 2.57 112 PPM 258156 10:49:20.3 -26:32:14 8.1 0.07 114 38050_Bias 10:49:02.2 -26:30:33 15.0 114 Positions are for equinox of date
Star training set for 38050_Bias, (2026/02/24 03:01UT) Object RA Dec mag sep mel Bet Cru 12:47:43.1 -59:41:20 1.3 39.18 134 4Gam Crv 12:15:48.1 -17:32:30 2.6 22.19 130 PPM 257916 10:37:13.5 -27:24:45 4.9 2.57 112 PPM 258156 10:48:05.3 -26:23:55 8.1 0.07 114 38050_Bias 10:47:47.1 -26:22:15 15.0 114 Positions are for J2000