NSSDCA ID: ASVI-00018
Availability: At NSSDC, Ready for Offline Distribution (or Staging if Digital)
Time span: 1976-01-17 to 1979-12-22
This "Reduced Data" set was originally written in binary by a PDP/10, on multifile tapes, with each tape containing one month of data. These reduced data are not corrected for star light or plasma-scattered light.
There are three other data sets closely related to this one (76-003A-11A). The "Zodiacal Light Data" set (76-003A-11B) is a further-processed (binary) version of this one, correcting for star light and plasma-scattered light. Each of these two named data sets also has an NSSDC-generated ASCII version (76-003A-11C and 76-003A-11D, respectively).
The first file in each month is a month (tape) header file; the file contains, also, in sequence all the measurement cycle header blocks. These blocks provide information about the status/health of the instruments, calibration, etc., for all the science data blocks in the month (tape). This month (tape) header file is followed by a series of individual files, each providing science data. The file structure is as follows: The first block is a measurement cycle header. (It is a repeat of the item in the month (tape) header file.) The second block provides housekeeping information, mainly the average temperatures of the sensors. The third block provides the reduced science data: Stokes parameters (Q) in ultraviolet, blue, and visible lights (U,B,V), polarization angles, Stokes parameters (U), polarized intensities, total intensities, degree of polarization, again in the U, B, and V bands. The final, fourth block provides a number of coordinate values and velocity components of the spacecraft and some planets, angles such as earth-Helios-sun angle, aspect angles of some planets, etc.
Questions and comments about this data collection can be directed to: Dr. H. Kent Hills
Name | Role | Original Affiliation | |
---|---|---|---|
Dr. Christoph Leinert | Data Provider | Max-Planck-Institut fur Astronomie | leinert@mpia-hd-mpg.de |