Occultation event with (19020) 00SC6, event index number 4530
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/10/31 09:57:17 UTC
J2000 position of star is 05:38:52.5 +17:45:04
Equinox of date position of star is 05:40:26.4 +17:45:52
Star is 26 degrees from the moon. Moon is 66% illuminated.
Stellar brightness G=14.5, apparent brightess of occulting body is G=15.9
Use an exposure time of 0.50 seconds with the standard RECON-QHY system.
SNR of 9.9 per integration for unocculted signal
Expected flux drop is 79% with SNR of 7.8 for the occulted depth (per occulted point)
Apparent velocity is 9.2 km/sec on the sky relative to the star, or, 9.7 arcsec/hr.
Position angle of asteroid motion is 97.7 degrees
The recommended exposure time corresponds to 4.6 km per image.
The 1-sigma error in the time of the event is 0.9 seconds.
The 1-sigma cross-track error in the shadow position is 41.0 km.
The sky-plane scale is 3414.6 km/arcsec.
Diameter estimates:
47.0 km assuming a 5% albedo, maximum of 5.1 sec for a central chord
19.2 km assuming a 30% albedo, maximum of 2.1 sec for a central chord
Cross-track diameter of 42.6 km used for deployment plan.
Star training set for 19020_00SC6, (2026/10/31 09:57UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.5 +07:24:35 0.4 11.08 28 Alnath 05:27:59.4 +28:37:39 1.6 11.23 27 122 Tau 05:38:37.2 +17:03:16 5.7 0.83 26 PPM 121237 05:41:37.3 +17:41:21 8.4 0.29 25 19020_00SC6 05:40:26.4 +17:45:52 15.9 25 Positions are for equinox of date
Star training set for 19020_00SC6, (2026/10/31 09:57UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 11.08 28 Alnath 05:26:17.6 +28:36:22 1.6 11.23 27 122 Tau 05:37:03.8 +17:02:24 5.7 0.83 26 PPM 121237 05:40:03.4 +17:40:36 8.4 0.29 25 19020_00SC6 05:38:52.5 +17:45:04 15.9 26 Positions are for J2000