Occultation event with (6997) Laomedon, event index number 4837
Regions able to see the event: NZ
Geocentric closest approach at 2026/11/23 12:55:38 UTC
J2000 position of star is 04:48:25.7 +03:26:25
Equinox of date position of star is 04:49:50.5 +03:29:09
Star is 34 degrees from the moon. Moon is 98% illuminated.
Stellar brightness G=13.7, apparent brightess of occulting body is G=15.9
Use an exposure time of 0.20 seconds with the standard RECON-QHY system.
SNR of 9.6 per integration for unocculted signal
Expected flux drop is 89% with SNR of 8.5 for the occulted depth (per occulted point)
Apparent velocity is 18.5 km/sec on the sky relative to the star, or, 19.3 arcsec/hr.
Position angle of asteroid motion is 70.8 degrees
The recommended exposure time corresponds to 3.7 km per image.
The 1-sigma error in the time of the event is 0.5 seconds.
The 1-sigma cross-track error in the shadow position is 33.2 km.
The sky-plane scale is 3458.1 km/arcsec.
Diameter estimates:
45.5 km assuming a 5% albedo, maximum of 2.5 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, (2026/11/23 12:56UT) Object RA Dec mag sep mel Rigel 05:15:49.9 -08:10:21 0.1 13.34 46 Bellatrix 05:26:34.5 +06:22:18 1.6 9.59 41 8Pi 5Ori 04:55:39.3 +02:28:57 3.7 1.76 36 PPM 148033 04:51:38.2 +03:43:41 7.3 0.51 34 PPM 148013 04:50:40.6 +03:18:53 8.8 0.27 34 PPM 147989 04:49:47.2 +03:23:50 10.8 0.09 34 6997_Laomedon 04:49:50.5 +03:29:09 15.9 34 Positions are for equinox of date
Star training set for 6997_Laomedon, (2026/11/23 12:56UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 13.34 46 Bellatrix 05:25:07.8 +06:20:58 1.6 9.59 41 8Pi 5Ori 04:54:15.1 +02:26:26 3.7 1.76 36 PPM 148033 04:50:13.3 +03:41:01 7.3 0.51 34 PPM 148013 04:49:15.9 +03:16:10 8.8 0.27 34 PPM 147989 04:48:22.4 +03:21:06 10.8 0.09 34 6997_Laomedon 04:48:25.7 +03:26:25 15.9 34 Positions are for J2000