Occultation event with (6002) Eetion, event index number 1271
Regions able to see the event: Australia
Geocentric closest approach at 2025/09/07 19:07:04 UTC
J2000 position of star is 03:30:50.6 +14:55:56
Equinox of date position of star is 03:32:16.9 +15:01:07
Star is 68 degrees from the moon. Moon is 100% illuminated.
Stellar brightness G=15.5, apparent brightess of occulting body is G=15.7
Use an exposure time of 1.70 seconds with the standard RECON-QHY system.
SNR of 9.7 per integration for unocculted signal
Expected flux drop is 54% with SNR of 5.3 for the occulted depth (per occulted point)
Apparent velocity is 5.8 km/sec on the sky relative to the star, or, 6.7 arcsec/hr.
Position angle of asteroid motion is 143.3 degrees
The recommended exposure time corresponds to 9.9 km per image.
The 1-sigma error in the time of the event is 4.7 seconds.
The 1-sigma cross-track error in the shadow position is 20.0 km.
The sky-plane scale is 3161.0 km/arcsec.
Diameter estimates:
46.1 km assuming a 5% albedo, maximum of 7.9 sec for a central chord
18.8 km assuming a 30% albedo, maximum of 3.2 sec for a central chord
Cross-track diameter of 40.4 km used for deployment plan.
Star training set for 6002_Eetion, (2025/09/07 19:07UT) Object RA Dec mag sep mel Aldebaran 04:37:23.9 +16:33:32 0.8 15.74 84 Menkar 03:03:37.5 +04:11:20 2.5 12.92 59 PPM 119236 03:39:14.6 +15:30:47 6.4 1.75 70 PPM 119113 03:30:24.9 +15:05:02 7.6 0.46 68 PPM 119149 03:32:50.2 +14:46:12 9.3 0.28 68 6002_Eetion 03:32:16.9 +15:01:07 15.7 69 Positions are for equinox of date
Star training set for 6002_Eetion, (2025/09/07 19:07UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 15.74 84 Menkar 03:02:16.8 +04:05:21 2.5 12.92 59 PPM 119236 03:37:47.9 +15:25:49 6.4 1.75 70 PPM 119113 03:28:58.6 +14:59:49 7.6 0.46 68 PPM 119149 03:31:24.0 +14:41:02 9.3 0.28 68 6002_Eetion 03:30:50.6 +14:55:56 15.7 68 Positions are for J2000