Occultation event with (19020) 00SC6, event index number 3935
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/08/04 08:13:47 UTC
J2000 position of star is 05:15:36.6 +16:56:03
Equinox of date position of star is 05:17:09.0 +16:57:44
Star is 60 degrees from the moon. Moon is 69% illuminated.
Stellar brightness G=15.3, apparent brightess of occulting body is G=16.5
Use an exposure time of 0.35 seconds with the standard RECON-QHY system.
SNR of 4.0 per integration for unocculted signal
Expected flux drop is 74% with SNR of 2.9 for the occulted depth (per occulted point)
Apparent velocity is 29.5 km/sec on the sky relative to the star, or, 24.8 arcsec/hr.
Position angle of asteroid motion is 83.4 degrees
The recommended exposure time corresponds to 10.3 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 36.8 km.
The sky-plane scale is 4290.3 km/arcsec.
Diameter estimates:
47.0 km assuming a 5% albedo, maximum of 1.6 sec for a central chord
19.2 km assuming a 30% albedo, maximum of 0.6 sec for a central chord
Cross-track diameter of 42.6 km used for deployment plan.
Star training set for 19020_00SC6, (2026/08/04 08:14UT) Object RA Dec mag sep mel Aldebaran 04:37:27.0 +16:33:38 0.8 9.51 51 Bellatrix 05:26:33.5 +06:22:18 1.6 10.84 64 PPM 120692 05:13:13.3 +16:04:34 5.2 1.29 60 PPM 120781 05:18:14.9 +17:02:50 8.3 0.28 61 PPM 120757 05:16:35.0 +16:47:52 8.6 0.21 60 19020_00SC6 05:17:09.0 +16:57:44 16.5 61 Positions are for equinox of date
Star training set for 19020_00SC6, (2026/08/04 08:14UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 9.51 51 Bellatrix 05:25:07.8 +06:20:58 1.6 10.84 64 PPM 120692 05:11:41.6 +16:02:45 5.2 1.29 60 PPM 120781 05:16:42.5 +17:01:12 8.3 0.28 61 PPM 120757 05:15:02.7 +16:46:10 8.6 0.21 60 19020_00SC6 05:15:36.6 +16:56:03 16.5 60 Positions are for J2000