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Low-Band Dynamic Spectra Plots, Jupiter


Availability: At NSSDC, Ready for Offline Distribution (or Staging if Digital)

Time span: 1977-09-05 to 1979-12-31


These plots, microfilmed by NSSDC from hardcopy data supplied by the experimenter, were produced on a 12-inch Versatec electrostatic plotter with 200 dots/inch resolution. The date (ymmdd or yymmdd) and the spacecraft (Voyager 1 or 2) are displayed on the right hand side of each plot. The plot consists of four panels. The first panel has no identifier; the second is labeled T (total power), the third R (right-hand polarization), and the fourth L (left-hand polarization). The vertical axis for each panel represents the frequency with the first tick mark equal to 0.25 MHz and each tick mark increasing by 0.25 MHz up to 1.25 MHz (the frequency increases in the downward direction). The horizontal axis represents spacecraft event time where each tick is equal to 1 hour. In the lower three panels (T, R, and L) the darkness is proportional to the logarithmic intensity of the signal above a computed background. The lower two panels represent the frame averages of R and L measurements. The sum of these two is shown in the T panel. Their difference gives the polarization sense displayed in the top panel (unlabeled), where white (black) represents a dominance of right-hand (left-hand) polarization. Supporting documentation with a more thorough data description appears at the beginning of the microfilm reel.

Digital images (scans) of the entire contents of the microfilm are available as data collection PSFP-00747.

Alternate Names

  • Low-Band Dyn Spectra Plots,Jupite


  • Planetary Science: Fields and Particles
  • Astronomy: Radio


  • 77-084A-10A

Additional Information



Questions and comments about this data collection can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Mr. Joseph K. Alexander, Jr.General ContactNASA Goddard Space Flight Center
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