Occultation event with (6002) Eetion, event index number 3182
Regions able to see the event: Europe
Geocentric closest approach at 2026/01/28 20:24:15 UTC
J2000 position of star is 02:56:31.8 +09:07:35
Equinox of date position of star is 02:57:56.0 +09:13:49
Star is 32 degrees from the moon. Moon is 79% illuminated.
Stellar brightness G=17.0, apparent brightess of occulting body is G=15.9
Use an exposure time of 1.90 seconds with the standard RECON-QHY system.
SNR of 3.0 per integration for unocculted signal
Expected flux drop is 27% with SNR of 0.8 for the occulted depth (per occulted point)
Apparent velocity is 10.0 km/sec on the sky relative to the star, or, 10.7 arcsec/hr.
Position angle of asteroid motion is 72.4 degrees
The recommended exposure time corresponds to 19.1 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 32.0 km.
The sky-plane scale is 3392.8 km/arcsec.
Diameter estimates:
46.1 km assuming a 5% albedo, maximum of 4.6 sec for a central chord
18.8 km assuming a 30% albedo, maximum of 1.9 sec for a central chord
Cross-track diameter of 40.4 km used for deployment plan.
Star training set for 6002_Eetion, (2026/01/28 20:24UT) Object RA Dec mag sep mel Aldebaran 04:37:25.2 +16:33:34 0.8 25.30 12 Menkar 03:03:38.8 +04:11:26 2.5 5.24 35 PPM 146068 02:57:37.7 +08:29:06 6.3 0.75 33 PPM 146018 02:55:10.5 +09:26:27 7.9 0.71 33 PPM 146071 02:57:40.0 +09:27:15 10.0 0.23 32 6002_Eetion 02:57:56.0 +09:13:49 15.9 32 Positions are for equinox of date
Star training set for 6002_Eetion, (2026/01/28 20:24UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 25.30 12 Menkar 03:02:16.8 +04:05:21 2.5 5.24 35 PPM 146068 02:56:13.9 +08:22:51 6.3 0.75 33 PPM 146018 02:53:46.3 +09:20:09 7.9 0.71 33 PPM 146071 02:56:15.7 +09:21:00 10.0 0.23 32 6002_Eetion 02:56:31.8 +09:07:35 15.9 32 Positions are for J2000