%year,Day,Kx (Range 0),O1 (nT),Counts @ O,Ky (Range 0),O2 (nT),Counts @ O,Kz (Range 0), O3 (nT),Counts @ O 2019 32.5 0.0146328 22.3 -1525 0.0144910 -17.3 1195 0.0142581 -30.0 2108 2019 33.5 0.0146328 22.3 -1525 0.0144910 -17.3 1195 0.0142581 -30.0 2108 2019 34.5 0.0146328 22.3 -1525 0.0144910 -17.3 1195 0.0142581 -30.0 2108 2019 35.5 0.0146328 22.3 -1525 0.0144910 -17.2 1186 0.0142581 -30.0 2108 2019 36.5 0.0146328 22.4 -1531 0.0144910 -17.1 1182 0.0142581 -30.0 2101 2019 37.5 0.0146328 22.4 -1532 0.0144910 -17.2 1189 0.0142581 -29.9 2099 2019 38.5 0.0146328 22.4 -1533 0.0144910 -17.2 1186 0.0142581 -29.9 2097 2019 39.5 0.0146328 22.4 -1534 0.0144910 -17.1 1181 0.0142581 -29.9 2095 2019 40.5 0.0146328 22.5 -1536 0.0144910 -17.1 1183 0.0142581 -29.9 2096 2019 41.5 0.0146328 22.4 -1534 0.0144910 -17.2 1186 0.0142581 -30.1 2110 2019 42.5 0.0146328 22.5 -1535 0.0144910 -17.0 1177 0.0142581 -30.1 2108 2019 43.5 0.0146328 22.6 -1546 0.0144910 -17.2 1189 0.0142581 -30.0 2105 2019 44.5 0.0146328 22.8 -1557 0.0144910 -17.1 1181 0.0142581 -30.0 2101 2019 45.5 0.0146328 23.0 -1568 0.0144910 -17.0 1175 0.0142581 -29.9 2098 2019 46.5 0.0146328 22.6 -1547 0.0144910 -17.0 1170 0.0142581 -30.0 2105 2019 47.5 0.0146328 22.4 -1529 0.0144910 -17.1 1178 0.0142581 -30.0 2101 2019 48.5 0.0146328 22.6 -1546 0.0144910 -17.1 1181 0.0142581 -29.9 2094 2019 49.5 0.0146328 22.5 -1536 0.0144910 -17.1 1182 0.0142581 -30.0 2107 2019 50.5 0.0146328 22.4 -1528 0.0144910 -17.1 1179 0.0142581 -30.1 2112 2019 51.5 0.0146328 22.2 -1521 0.0144910 -17.0 1175 0.0142581 -30.2 2117 2019 52.5 0.0146328 22.1 -1513 0.0144910 -17.0 1172 0.0142581 -30.3 2123 2019 53.5 0.0146328 22.0 -1506 0.0144910 -17.1 1178 0.0142581 -29.8 2089 2019 54.5 0.0146328 22.1 -1510 0.0144910 -17.0 1175 0.0142581 -29.8 2091 2019 55.5 0.0146328 21.9 -1498 0.0144910 -17.0 1177 0.0142581 -29.7 2085 2019 56.5 0.0146328 22.1 -1508 0.0144910 -17.2 1185 0.0142581 -29.8 2091 2019 57.5 0.0146328 22.2 -1514 0.0144910 -17.2 1186 0.0142581 -29.8 2093 2019 58.5 0.0146328 22.1 -1511 0.0144910 -17.0 1175 0.0142581 -29.9 2096 2019 59.5 0.0146328 21.9 -1496 0.0144910 -17.2 1189 0.0142581 -29.7 2082 Note: The raw magnetic field B(nT) to Counts conversion are based on the scale factor table from the document STEREO/IMPACT Magnetometer Experiment Preliminary Report (11/15/05) by Dr. Mario H. Acuna (NASA) B (nT) = K(x,y,z) * (32768 - Counts) Howerer, the code in the MAG idl routine have already dealed with the center data around zero issue, therefore, Counts = -B/K The offsets O1, O2 and O3 are to be subtracted to any values converted to nominal B(nT) The "Counts @ O" should be subtracted for all Range 0 data in counts to center data around zero.