Data Set Overview
=================

Contents:
A. Operations overview
B. Dataset status
C. Scientific use
D. Updates since previous version



A. Operations overview
----------------------

LAP operations are described in the operations report,
IRFU-ROS-OPR-ESC3 in the DOCUMENT/FLIGHT_REPORTS directory of this
data set.


B. Dataset status
-----------------

This dataset contains scientifically useful data from the Rosetta
RPC-LAP instrument. The data contained are primary instrument data,
in instrument units (TM) and NOT calibrated to physical units
(volts and amperes) and with instrumental offsets NOT removed.
See the caveats in Section C below for data use.


C. Scientific use
-----------------

While the edited data are scientifically useful to instrument
experts, these data files are supplied mainly for long-term archiving
and reference purposes and are not intended or suitable for
scientific use by the wider community. At a later stage, a DERIVED
data set will be delivered, providing directly useful scientific
quantities (e.g. plasma density, wave spectra, electron temperature).

For information on exact data products (science data, geometry files,
housekeeping), calibration, file formats and file naming conventions,
etc., consult the EAICD, RO-IRFU-LAP-EAICD-x_y_z, in the DOCUMENT
directory.

For general caveats, see the EAICD in the DOCUMENT directory. For
specifics of this mission phase, see the operations report,
IRFU-ROS-OPR-ESC3 in the DOCUMENT/FLIGHT_REPORTS directory.

Other caveats:

a. The archived data set is complete, but it has not been possible to
   scan every part of it for every possible problem before delivery,
   so there may be numerous data quality issues in addition to this
   list. While the data clearly have a great science potential,
   analysis has to be done with great care. Anybody using the present
   dataset is strongly encouraged to contact a LAP CoI for
   cooperation.


D. Updates since previous version
---------------------------------

- Removed previously made modification of ADC16 TM values due to
  nonlinearity in ADC16.
- Uses SPICE for time conversions. Better time conversions from
  spacecraft clock to UTC.

These data are uncalibrated
raw data, i.e. digital output of the instrument. As such, the
confidence level is very high.