MGN RSS Calibrated Data Record (SPC)

SPC – RSS Calibrated Data Record

Instrument: Magellan Radio Science

PDS3 Data Set ID: MGN-V-RSS-4-BSR-V1.0DOI: 10.17189/1522531

PDS4 Bundle: urn:nasa:pds:magellan_bsr_calibratedDOI: 10.17189/c7sf-7t57

For more information about RSS SPC products, see the Bistatic Radar Calibrated Data Set Description.

The Radio Science Subsystem (RSS) Calibrated Data Record (SPC) data products are ASCII files containing power spectra, cross-spectrum magnitudes, and cross-spectrum phases. There are three SPC files, one for each Magellan orbit.

The first 8 or 12 rows in an SPC file contain a header (a PDS TABLE object) listing source files. The remaining rows contain the power and voltage cross-spectra measurements (a second PDS TABLE). The rows are ordered by time; within each time step, the rows are ordered by frequency.

Columns in the data part of an SPC file give:

  • Spectrum number

  • Center time for the average spectrum (seconds)

  • Frequency bin number

  • Frequency corresponding to the bin number (Hz)

  • Average X-Band right-circular polarization (RCP) power (set to zero in this archive)

  • Average X-Band left-circular polarization (LCP) power (set to zero in this archive)

  • Average S-Band RCP power (zeptowatts)

  • Average S-Band LCP power (zeptowatts)

  • Average X-Band cross-spectrum magnitude (set to zero)

  • Average X-Band cross-spectrum phase (set to zero)

  • Average S-Band cross-spectrum magnitude (zeptowatts)

  • Average S-Band cross-spectrum phase (zeptowatts)

RSS SPC products have the following file names:

ydddhhmB.SPC (with detached PDS label)

where:

y = one-digit year

ddd = three-digit day of year

hh = two-digit hour

m = tens of minutes when the file started

B = version = second versions created of each file (The ‘A’ versions were preliminary and are not included in the archive.)

In ODE, SPC products have the following product IDs:

YDDDHHMB