Cassini/RPWS/HFR-Kronos
Access to Lesia-Meudon data products
Plasma density and temperature with Quasi-Thermal Noise Spectroscopy
Scientific Data
The RPWS HFR QTN data set in included in CDF files. Each parameter
is a 1D variable in the file, depending on time. The SCET of each
sample corresponds to the beginning of the HFR sweep. Hence, the real
measurement time can be up to about 2 sseconds after that time, depending
on the operating mode and on the value of FuH.
Ancillary Data
Ancillary data are included in the files. They provide the location
of the spacecraft at the time of the measurement (distance to Saturn,
latitude, local time and L-Shell).
Coordinate System
The data in this data set are thermal plasma parameters derived from
HFR spectra using the thermal noise spectroscopy theory. These
parameters are presented as detected by the sensor and are not
rotated into any other coordinate system. If desired the SPICE
kernels can be used with the SPICE toolkit to convert from the
spacecraft frame to virtually any frame which may be of use in
analyzing these data. However, for most purposes, the parameters
may be considered point measurements at Cassini and may be entirely
adequate with no coordinate transformations at all.
Media/Format
These data are supplied as an online
collection of CDF files. They are available directly from this site,
from the NASA/PDS PPI node
(currently under review), from the
CDPP tools (currently under review)
and from the VESPA-enabled
tools and portals (coming soon).