Occultation event with (4348) Poulydamas, event index number 4720
Regions able to see the event: Australia
Geocentric closest approach at 2026/11/16 13:22:10 UTC
J2000 position of star is 04:56:37.5 +17:34:24
Equinox of date position of star is 04:58:11.2 +17:36:49
Star is 121 degrees from the moon. Moon is 41% illuminated.
Stellar brightness G=15.7, apparent brightess of occulting body is G=14.3
Use an exposure time of 1.35 seconds with the standard RECON-QHY system.
SNR of 5.8 per integration for unocculted signal
Expected flux drop is 21% with SNR of 1.2 for the occulted depth (per occulted point)
Apparent velocity is 14.7 km/sec on the sky relative to the star, or, 18.6 arcsec/hr.
Position angle of asteroid motion is 74.1 degrees
The recommended exposure time corresponds to 19.9 km per image.
The 1-sigma error in the time of the event is 0.6 seconds.
The 1-sigma cross-track error in the shadow position is 33.2 km.
The sky-plane scale is 2857.5 km/arcsec.
Diameter estimates:
70.5 km assuming a 5% albedo, maximum of 4.8 sec for a central chord
28.8 km assuming a 30% albedo, maximum of 2.0 sec for a central chord
Cross-track diameter of 82.0 km used for deployment plan.
Star training set for 4348_Poulydamas, (2026/11/16 13:22UT) Object RA Dec mag sep mel Aldebaran 04:37:28.0 +16:33:40 0.8 5.06 116 Alnath 05:27:59.6 +28:37:39 1.6 12.96 129 PPM 120426 04:58:55.6 +17:11:35 6.3 0.46 121 PPM 120420 04:58:41.9 +17:31:39 9.2 0.15 121 4348_Poulydama 04:58:11.2 +17:36:49 14.3 121 Positions are for equinox of date
Star training set for 4348_Poulydamas, (2026/11/16 13:22UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 5.06 116 Alnath 05:26:17.6 +28:36:22 1.6 12.96 129 PPM 120426 04:57:22.2 +17:09:12 6.3 0.46 121 PPM 120420 04:57:08.3 +17:29:15 9.2 0.15 121 4348_Poulydama 04:56:37.5 +17:34:24 14.3 121 Positions are for J2000