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USGS CMG InfoBank format for Edited gradiometer data

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File Name /infobank/<letter>/<activityid>/mag/<activity-id>.260
Style time/data style, multi-record, in caps, without tabs
Mnemonic
(Year, Day, Hour, Min, Sec, Tenths, MstObs, SlvObs, MstReg, SlvReg, MstRes, SlvRes, DiffRes)
Fortran format
(i4.4, i3.3, 3i2.2, i1.1, t16, f7.1, t24, f7.1, t32, f7.1, t40, f7.1, t48, f7.1, t56, f7.1, t64, f7.1)
C format
(%4.4i%3.3i3%2.2i%1.1i %7.1f %7.1f %7.1f %7.1f %7.1f %7.1f %7.1f\\n)
Purpose temporal data
Derivative earlier data set
Comment from /infobank/programs/mag/magred

Example
         1         2         3         4         5         6         7 
12345678901234567890123456789012345678901234567890123456789012345678901
    
19771310138000 49936.9 50880.5  -943.6
19771310138200 49937.9 50880.8  -942.9
19771310138400 49941.1 50881.0  -939.9
19771310139000 49946.5 50881.3  -934.8
19771310139200 49953.9 50881.6  -927.7 
      

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