The Lunar Dust Experiment (LDEX) is an impact ionization dust detector. It measures the mass
of individual dust grains with m ≥ 1.7x10-16kg (radius, rs ≥ 0.3 μm) for impact speeds ≈ 1.7 km/s and also measures the collective current due to grains below the threshold for individual detection, enabling the search for dust grains with radius rg ≈ 0.1 μm over the terminators. LDEX is either ON or OFF - No other operational modes.
Useful Mission Documents
Archive Bundle Contents (Housed at the Small Bodies/Dust Node)
Other Useful Products for Interpreting the Data
- Directory containing the document collection, which includes refereces to refereed
journals using this instrument, and information about calibration and explanation of data structures.
- Directory containing housekeeping data for the instrument.
- Directory containing processed data files.
- Directory containing the calibrated data files.
Calibration Documentation is in the SIS
– Directory containing derived values of dust density in the lunar atmosphere for grains with radii greater than 0.3 microns. The data consists of an ASCII table with dust density and errors tabulated as a function of altitude every 1.5 hours from 19:30 through 0:00 to 10:30 local time. See Horyani, M., Z. et al., The Lunar Dust Experiment (LDEX) onboard the Lunar Atmosphere and Dust Environment Explorer (LADEE) Mission, Space Science Reviews, 185 104), 93-113, doi:10.1007/s11214-014-0118-7, 2014.
- A listing of team members to facilitate literature searches
Other Potentially Relevant Data
Acceleration, Reconnection, Turbulence and Electrodynamics of the
Moon's Interaction with the Sun (ARTEMIS)
(available soon from
Lunar Elevation Map
- Archived LADEE SPICE ancillary data providing observation geometry (positions,
orientations, instrument pointing, time conversions, etc.) are available from the PDS NAIF Node
For assistance in understanding PDS4 contact neese"at"psi"dot"edu at the Small Bodies Dust Node.
Citing the data for Publication
D. James, J. Szalay (2014), LADEE Lunar Dust Experiment, NASA Planetary Data System, https://doi.org/10.17189/1518954