Atmospheric Composition Mass Peak Summary Data

Description

This magnetic tape was copied at NSSDC from the experimenter's tapes and is written in IBM 360 standard binary. The record format is variable block size. A logical record is 324 bytes, and the block size is 3224 bytes. File 1 contains the summarized data from lunation 1 through lunation 5. File 2 contains lunations 6 through 9. Each record gives a summary of the data obtained from one mass spectrum, formatted in 80 binary words of 4 bytes each. Parameters included in each record are -- time of start of spectrum with January 1, 1973, set as day = 0, peak amplitudes for the following gas species (in amu) -- 4, 28, 32, 35, 36, 27, 38, 40, 44, and 92, gas concentrations for helium and argon, and solar ephemeris data for the Apollo 17 site.