Data Set Overview
    =================
    This dataset contains the plasma electron density derived from
    cross-calibrating datasets provided by RPC-MIP and RPC-LAP instruments
    for ESC1 (COMET ESCORT 1) mission phase,
    between 2014/11/19 and 2015/03/10.

    While this dataset aims to cover the entire Rosetta mission, it is not
    possible to derive the plasma density for each single measurement in a
    continuous manner and only days with sufficient quality are provided.

    Derived cross-calibrated data collected in this dataset are referred as
    CODMAC Level 5 products.

    Processing
    ==========
    Cross-calibrated plasma electron densities enclosed in this dataset have
    been obtained by combining measurements from RPC-LAP and electron densities
    derived from RPC-MIP. While reliable electron density values are obtained
    through the analysis of RPC-MIP electric impedance spectra measurements,
    they suffer a number of limitations due to instrumental capabilities,
    notably affecting the time resolution. On the other hand, RPC-LAP provides
    high cadence measurements of physical quantities directly related to the
    electron density.

    Cross-calibrated plasma electron densities are thus obtained by fitting
    floating potential and/or ion current measured by RPC-LAP probes to the
    electron densities provided by RPC-MIP. The cross-calibration is performed
    over fixed overlapping sliding time windows, assuming a physical model
    between both inputs.

    Possible issues on RPC-MIP and RPC-LAP inputs usability for such purposes
    are a priori limited by a careful selection of cross-calibration intervals
    as well as prioritization between RPC-LAP measurements used as input
    (between floating potential and ion current and between RPC-LAP probes).

    All inputs used during the cross-calibration procedure are available as L5
    datasets on the PSA:
    - RO-C-RPCMIP-5, containing the RPC-MIP derived electron density
    - RO-C-RPCLAP-5, containing different measurements from RPC-LAP probes.
                     Only a subset of macros leading to floating potential or
                     ion current measurements on probe 1 or 2 is considered
                     for cross-calibration.

    Results from the cross-calibration processing are filtered out to discard,
    as much as possible, false detections and cases where the underlying
    assumptions are disputable. This is achieved through a prioritization among
    several possible RPC-LAP inputs to be cross-calibrated with RPC-MIP and by
    discarding events where the measurements quality can be limited (e.g. during
    attitude correction maneuvers, bad illumination conditions for RPC-LAP
    probes, etc).

    For more information on data products and on the cross-calibration procedure,
    consult the RPCMIP User Guide and RPCMIP/RPCLAP Cross-Calibration Report.

Data confidence is nominal, meaning that
                             all data have been validated by the
                             scientific team and found as expected.
                             Furthermore, a record varying quality factor
                             is provided for each cross-calibrated parameter.