Occultation event with (4348) Poulydamas, event index number 4102
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/08/26 05:42:39 UTC
J2000 position of star is 04:55:01.2 +19:32:52
Equinox of date position of star is 04:56:35.3 +19:35:20
Star is 124 degrees from the moon. Moon is 96% illuminated.
Stellar brightness G=16.2, apparent brightess of occulting body is G=15.1
Use an exposure time of 1.05 seconds with the standard RECON-QHY system.
SNR of 3.6 per integration for unocculted signal
Expected flux drop is 25% with SNR of 0.9 for the occulted depth (per occulted point)
Apparent velocity is 19.5 km/sec on the sky relative to the star, or, 19.6 arcsec/hr.
Position angle of asteroid motion is 93.0 degrees
The recommended exposure time corresponds to 20.5 km per image.
The 1-sigma error in the time of the event is 0.1 seconds.
The 1-sigma cross-track error in the shadow position is 33.7 km.
The sky-plane scale is 3581.0 km/arcsec.
Diameter estimates:
70.5 km assuming a 5% albedo, maximum of 3.6 sec for a central chord
28.8 km assuming a 30% albedo, maximum of 1.5 sec for a central chord
Cross-track diameter of 82.0 km used for deployment plan.
Star training set for 4348_Poulydamas, (2026/08/26 05:43UT) Object RA Dec mag sep mel Aldebaran 04:37:27.2 +16:33:38 0.8 5.46 119 Alnath 05:27:58.7 +28:37:39 1.6 11.52 132 97 Tau 04:52:56.2 +18:52:58 5.1 1.11 123 PPM 120385 04:56:32.6 +19:31:34 7.2 0.06 124 4348_Poulydama 04:56:35.3 +19:35:20 15.1 124 Positions are for equinox of date
Star training set for 4348_Poulydamas, (2026/08/26 05:43UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 5.46 119 Alnath 05:26:17.6 +28:36:22 1.6 11.52 132 97 Tau 04:51:22.6 +18:50:23 5.1 1.11 123 PPM 120385 04:54:58.5 +19:29:07 7.2 0.06 124 4348_Poulydama 04:55:01.2 +19:32:52 15.1 124 Positions are for J2000