Occultation event with (19020) 00SC6, event index number 3983
Regions able to see the event: SAmericaN,SAmericaS
Geocentric closest approach at 2026/08/11 09:23:49 UTC
J2000 position of star is 05:20:17.0 +17:03:29
Equinox of date position of star is 05:21:49.6 +17:04:59
Star is 41 degrees from the moon. Moon is 3% illuminated.
Stellar brightness G=11.8, apparent brightess of occulting body is G=16.4
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 24.8 per integration for unocculted signal
Expected flux drop is 99% with SNR of 24.5 for the occulted depth (per occulted point)
Apparent velocity is 27.1 km/sec on the sky relative to the star, or, 23.0 arcsec/hr.
Position angle of asteroid motion is 84.0 degrees
The recommended exposure time corresponds to 3.2 km per image.
The 1-sigma error in the time of the event is 0.7 seconds.
The 1-sigma cross-track error in the shadow position is 37.6 km.
The sky-plane scale is 4228.8 km/arcsec.
Diameter estimates:
47.0 km assuming a 5% albedo, maximum of 1.7 sec for a central chord
19.2 km assuming a 30% albedo, maximum of 0.7 sec for a central chord
Cross-track diameter of 42.6 km used for deployment plan.
Star training set for 19020_00SC6, (2026/08/11 09:24UT) Object RA Dec mag sep mel Aldebaran 04:37:27.0 +16:33:38 0.8 10.63 51 Bellatrix 05:26:33.6 +06:22:18 1.6 10.77 44 110 Tau 05:25:10.0 +16:43:20 6.4 0.88 40 PPM 120885 05:24:06.9 +16:49:39 8.1 0.60 40 PPM 120834 05:21:31.0 +16:45:23 9.5 0.34 41 19020_00SC6 05:21:49.6 +17:04:59 16.4 41 Positions are for equinox of date
Star training set for 19020_00SC6, (2026/08/11 09:24UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 10.63 51 Bellatrix 05:25:07.8 +06:20:58 1.6 10.77 44 110 Tau 05:23:37.6 +16:41:58 6.4 0.88 40 PPM 120885 05:22:34.4 +16:48:14 8.1 0.60 40 PPM 120834 05:19:58.6 +16:43:52 9.5 0.34 41 19020_00SC6 05:20:17.0 +17:03:29 16.4 41 Positions are for J2000