Data Set Overview:Contents:A. Operations overviewB. Data set statusC. Scientific useD. CaveatsE. Updates since previous versionF. Version historyA. Operations overview----------------------LAP operations are described in the operations report,IRFU-ROS-OPR-ESC1 in the DOCUMENT/FLIGHT_REPORTS directory of thisdata set.B. Data set status------------------This data set contains scientifically useful data from the RosettaRPC-LAP instrument. The data contained are primary instrument data,calibrated to physical units (volts and amperes) and with instrumentaloffsets removed. See the caveats in Section D below for data use.C. Scientific use-----------------The data can be used for scientific analysis, but this requires somefamiliarity with this type of data. There are also separatederived-level data sets for the same time period, providing directlyuseful scientific quantities (e.g. electron 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, in the DOCUMENTdirectory. For the specifics of this mission phase, seethe operations report, IRFU-ROS-OPR-ESC1 inthe DOCUMENT/FLIGHT_REPORTS directory.D. Caveats----------This section covers caveats relevant for this specific data set. Forgeneral caveats, see the EAICD in the DOCUMENT directory.D.1. General caveat-------------------The archived data set is complete, but it has not been possible toscan every part of it for every possible problem before delivery, sothere may be numerous data quality issues in addition to this list.While the data clearly have a great science potential, analysis has tobe done with great care. Anybody using the present data set is stronglyencouraged to contact a LAP CoI for cooperation.E. Updates since previous version---------------------------------- Added geometry files.- Bugfix: Uses correct ADC20 sampling frequency for setting timestamps for ADC20 data.- MAJOR: Data reorganized into fewer files with longer time series and sorted by type of measurement.- Using correct offset to compensate for difference between ADC16s and ADC20s.- Calibration compensates for bug in onboard moving average- Using correct offset to compensate for difference between 4 kHz and 8 kHz ADC16 low-pass filters.- Calibration handles non-linearity in ADC16 better by using a more accurate offset for non-negative TM values.- Better calibration factors for ADC20 (TM to ampere/volt).- Uses SPICE for time conversions. Better time conversions from spacecraft clock to UTC.- Better way of selecting voltage bias-dependent current offsets used for calibration (CALIB_COEFF files instead of CALIB_MEAS files).- Calibration correctly eliminates saturated values.See section Version history.F. Version history------------------Note that there has been changes in the organization of data sets:- Previously, some data sets were split into several data sets, one per MTP, and therefore used the DATA_SET_ID description string to signify which MTP.- Previously, data sets which covered the entire mission phase used the description strings EDITED and CALIB.- New edited and calibrated data sets use the DATA_SET_ID description strings EDITED2 and CALIB2 to signify significants updates in the data set pipeline and the basic format of the data sets (fewer files and longer time series). The versioning of these data sets starts from V1.0.Therefore, this data set supersedes the following data set(s): RO-C-RPCLAP-3-ESC1-CALIB-V1.0

Data in this archive areinstrument outputs in volts and amperes, calibrated and corrected forinstrument offsets to the greatest extent possible. Offsets aredetermined onboard and removed from CALIBRATED data on ground butstill remains in EDITED data.