Occultation event with (19020) 00SC6, event index number 4477
Regions able to see the event: Europe
Geocentric closest approach at 2026/10/24 22:59:56 UTC
J2000 position of star is 05:40:20.5 +17:41:52
Equinox of date position of star is 05:41:54.4 +17:42:37
Star is 70 degrees from the moon. Moon is 98% illuminated.
Stellar brightness G=15.4, apparent brightess of occulting body is G=16.0
Use an exposure time of 1.50 seconds with the standard RECON-QHY system.
SNR of 10.0 per integration for unocculted signal
Expected flux drop is 64% with SNR of 6.4 for the occulted depth (per occulted point)
Apparent velocity is 6.5 km/sec on the sky relative to the star, or, 6.7 arcsec/hr.
Position angle of asteroid motion is 99.9 degrees
The recommended exposure time corresponds to 9.7 km per image.
The 1-sigma error in the time of the event is 1.1 seconds.
The 1-sigma cross-track error in the shadow position is 41.0 km.
The sky-plane scale is 3468.3 km/arcsec.
Diameter estimates:
47.0 km assuming a 5% albedo, maximum of 7.2 sec for a central chord
19.2 km assuming a 30% albedo, maximum of 3.0 sec for a central chord
Cross-track diameter of 42.6 km used for deployment plan.
Star training set for 19020_00SC6, (2026/10/24 23:00UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.5 +07:24:35 0.4 10.91 75 Alnath 05:27:59.4 +28:37:39 1.6 11.37 67 122 Tau 05:38:37.2 +17:03:16 5.7 1.02 70 PPM 121237 05:41:37.2 +17:41:21 8.4 0.07 70 19020_00SC6 05:41:54.4 +17:42:37 16.0 71 Positions are for equinox of date
Star training set for 19020_00SC6, (2026/10/24 23:00UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 10.91 75 Alnath 05:26:17.6 +28:36:22 1.6 11.37 67 122 Tau 05:37:03.8 +17:02:24 5.7 1.02 70 PPM 121237 05:40:03.4 +17:40:36 8.4 0.07 70 19020_00SC6 05:40:20.5 +17:41:52 16.0 70 Positions are for J2000