Occultation event with (6997) Laomedon, event index number 1466
Regions able to see the event: Europe
Geocentric closest approach at 2025/11/06 19:37:04 UTC
J2000 position of star is 02:54:12.5 +05:02:54
Equinox of date position of star is 02:55:34.1 +05:09:08
Star is 26 degrees from the moon. Moon is 97% illuminated.
Stellar brightness G=7.6, apparent brightess of occulting body is G=15.7
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 100.1 per integration for unocculted signal
Expected flux drop is 100% with SNR of 100.0 for the occulted depth (per occulted point)
Apparent velocity is 18.8 km/sec on the sky relative to the star, or, 20.1 arcsec/hr.
Position angle of asteroid motion is 63.0 degrees
The recommended exposure time corresponds to 2.3 km per image.
The 1-sigma error in the time of the event is 0.8 seconds.
The 1-sigma cross-track error in the shadow position is 29.0 km.
The sky-plane scale is 3366.3 km/arcsec.
Diameter estimates:
45.5 km assuming a 5% albedo, aximum of 2.4 sec for a central chord
18.6 km assuming a 30% albedo, maximum of 1.0 sec for a central chord
Cross-track diameter of 37.5 km used for deployment plan.
Star training set for 6997_Laomedon, (2025/11/06 19:37UT) Object RA Dec mag sep mel Aldebaran 04:37:24.4 +16:33:33 0.8 27.43 13 Menkar 03:03:38.0 +04:11:23 2.5 2.23 25 PPM 146085 02:58:26.0 +04:36:14 6.1 0.90 26 PPM 146024 02:55:34.1 +05:09:08 7.5 0.00 26 6997_Laomedon 02:55:34.1 +05:09:08 15.7 25 Positions are for equinox of date
Star training set for 6997_Laomedon, (2025/11/06 19:37UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 27.43 13 Menkar 03:02:16.8 +04:05:21 2.5 2.23 25 PPM 146085 02:57:04.6 +04:30:04 6.1 0.90 26 PPM 146024 02:54:12.5 +05:02:53 7.5 0.00 26 6997_Laomedon 02:54:12.5 +05:02:54 15.7 26 Positions are for J2000