NSSDCA ID: SPHE-00463
Availability: At NSSDC, Ready for Offline Distribution (or Staging if Digital)
Time span: 1977-10-22 to 1987-12-31
This data set consists of 24-h survey plots of the signal strength in the 16 channels of the spectrum analyzer and in the lowest 1 kHz of a single (indicated) range of the wideband data. The channels are logarithmically spaced, with 4 frequency channels per decade, and cover from 5.6 Hz to 31.1 kHz. Bandwidths are approximately + and -15% of the center frequencies for the channels below 10 kHz, but + and -7.5% for the 10 kHz and higher channels. Average values over 144-s intervals are plotted, as well as the peak values in these intervals. The displayed output is not calibrated, but is approximately proportional to the logarithm of the input field strength. Full scale represents a signal strength approximately 110 dB above the baseline level (approximately 1 microvolt/m). Each plot indicates geocentric solar ecliptic coordinates of the spacecraft at the start time, geomagnetic latitude, magnetic local time, separation distance between ISEE 1 and ISEE 2, orbit number, and L (when available). Also indicated on each plot is the antenna that is in use: 30-m tip-to-tip long electric dipole, search coil, or 0.61-m short electric dipole.
Questions and comments about this data collection can be directed to: Dr. H. Kent Hills
Name | Role | Original Affiliation | |
---|---|---|---|
Dr. Roger R. Anderson | General Contact | University of Iowa | roger-r-anderson@uiowa.edurra@space.physics.uiowa.edu |