Occultation event with (911) Agamemnon, event index number 3744
Regions able to see the event: SAmericaN,SAmericaS
Geocentric closest approach at 2026/05/14 03:34:01 UTC
J2000 position of star is 11:16:05.6 -06:23:13
Equinox of date position of star is 11:17:26.0 -06:31:52
Star is 156 degrees from the moon. Moon is 10% illuminated.
Stellar brightness G=12.3, apparent brightess of occulting body is G=13.4
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 15.9 per integration for unocculted signal
Expected flux drop is 73% with SNR of 11.7 for the occulted depth (per occulted point)
Apparent velocity is 3.2 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
Position angle of asteroid motion is 112.5 degrees
The recommended exposure time corresponds to 0.4 km per image.
The 1-sigma error in the time of the event is 10.6 seconds.
The 1-sigma cross-track error in the shadow position is 13.7 km.
The sky-plane scale is 3554.5 km/arcsec.
Diameter estimates:
160.7 km assuming a 5% albedo, maximum of 50.1 sec for a central chord
65.6 km assuming a 30% albedo, maximum of 20.4 sec for a central chord
Cross-track diameter of 131.0 km used for deployment plan.
Star training set for 911_Agamemnon, (2026/05/14 03:34UT) Object RA Dec mag sep mel Regulus 10:09:46.4 +11:50:14 1.3 24.91 134 4Gam Crv 12:17:10.0 -17:41:17 2.6 18.35 168 PPM 194312 11:18:18.4 -07:16:44 6.1 0.78 156 PPM 194335 11:19:45.4 -06:02:27 8.3 0.76 156 PPM 194283 11:16:56.4 -06:17:50 8.9 0.26 155 911_Agamemnon 11:17:26.0 -06:31:52 13.4 156 Positions are for equinox of date
Star training set for 911_Agamemnon, (2026/05/14 03:34UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 24.91 134 4Gam Crv 12:15:48.1 -17:32:30 2.6 18.35 168 PPM 194312 11:16:58.2 -07:08:05 6.1 0.78 156 PPM 194335 11:18:24.9 -05:53:47 8.3 0.76 156 PPM 194283 11:15:36.1 -06:09:12 8.9 0.26 155 911_Agamemnon 11:16:05.6 -06:23:13 13.4 156 Positions are for J2000