NSSDCA ID: PSPA-00251
Availability: At NSSDC, Ready for Offline Distribution (or Staging if Digital)
Time span: 1976-09-04 to 1979-07-21
This experimenter-supplied data set consists of Martian daily average pressure data written on an ASCII unlabeled tape by a Prime computer. The mean pressure data (in millibars) are derived from individual measurements that are sampled at intervals of 30 to 90 min. They are time-weighted daily average pressure values with certain assumptions regarding gaps longer than 3 h. Depending on the location of the gaps and their length, missing data are either filled in by interpolation or extrapolation, or are excluded from the time-weighted statistics. Besides the average pressure, other parameters are provided for each sol including minimum pressure, standard deviation, length of maximum time gap, starting and ending times of large gaps, and other supporting information. There are two separate copies of data from each Lander, including a total of 1050 sols of Lander 2 average pressure values available on the tape. For more information, refer to the "Atmospheric Pressure Statistics From the Surface of Mars: the Viking Meteorology Experiment," by J. E. Tillman, available at NSSDC on the data tape. It should be noted that all records of the Lander 1 data contain 4400 ASCII characters, but the last tape record of the Lander 2 data is only 800 characters long, contrary to the format given in the descriptive document.
Questions and comments about this data collection can be directed to: Dr. David R. Williams
Name | Role | Original Affiliation | |
---|---|---|---|
Prof. James E. Tillman | General Contact | University of Washington | mars@atmos.washington.edu |