Chronicle datasets from Magsat Mar. 18, 1980 to Apr. 20, 1980 FILE FORMAT DESCRIPTION read.me chron.f Conversion program chronfin.036-043 CHRON TAPES AND CARTRIDGES: S30018, S30019, S30020, S30021, S30022, S30048, S30049, S30050, S30051, S30052, OF9318, OF9319, OF9320, OF9321, OF9322