%year,Day,Kx (Range 0),O1 (nT),Counts @ O,Ky (Range 0),O2 (nT),Counts @ O,Kz (Range 0), O3 (nT),Counts @ O 2018 305.5 0.0146328 22.5 -1538 0.0144910 -17.1 1183 0.0142581 -30.1 2112 2018 306.5 0.0146328 22.4 -1531 0.0144910 -17.2 1184 0.0142581 -30.1 2110 2018 307.5 0.0146328 22.3 -1523 0.0144910 -17.2 1184 0.0142581 -30.1 2108 2018 308.5 0.0146328 22.2 -1516 0.0144910 -17.2 1185 0.0142581 -30.0 2106 2018 309.5 0.0146328 22.1 -1509 0.0144910 -17.2 1186 0.0142581 -30.0 2105 2018 310.5 0.0146328 22.0 -1501 0.0144910 -17.2 1186 0.0142581 -29.9 2098 2018 311.5 0.0146328 22.0 -1505 0.0144910 -17.2 1185 0.0142581 -30.0 2103 2018 312.5 0.0146328 21.9 -1499 0.0144910 -17.1 1181 0.0142581 -30.1 2111 2018 313.5 0.0146328 22.0 -1501 0.0144910 -17.2 1188 0.0142581 -30.0 2103 2018 314.5 0.0146328 22.1 -1508 0.0144910 -16.9 1169 0.0142581 -30.0 2103 2018 315.5 0.0146328 22.0 -1507 0.0144910 -17.3 1194 0.0142581 -30.0 2102 2018 316.5 0.0146328 22.0 -1506 0.0144910 -17.7 1224 0.0142581 -30.0 2101 2018 317.5 0.0146328 22.0 -1506 0.0144910 -17.0 1172 0.0142581 -30.0 2107 2018 318.5 0.0146328 22.0 -1503 0.0144910 -17.0 1175 0.0142581 -30.3 2127 2018 319.5 0.0146328 22.0 -1500 0.0144910 -17.1 1181 0.0142581 -30.0 2107 2018 320.5 0.0146328 21.9 -1497 0.0144910 -17.2 1189 0.0142581 -29.8 2087 2018 321.5 0.0146328 21.9 -1495 0.0144910 -17.3 1196 0.0142581 -29.5 2067 2018 322.5 0.0146328 22.7 -1552 0.0144910 -17.3 1196 0.0142581 -26.7 1873 2018 323.5 0.0146328 23.5 -1609 0.0144910 -17.3 1197 0.0142581 -27.6 1933 2018 324.5 0.0146328 23.0 -1573 0.0144910 -17.3 1197 0.0142581 -28.4 1993 2018 325.5 0.0146328 22.5 -1538 0.0144910 -17.4 1197 0.0142581 -29.3 2054 2018 326.5 0.0146328 22.0 -1502 0.0144910 -17.1 1183 0.0142581 -30.1 2114 2018 327.5 0.0146328 21.9 -1493 0.0144910 -17.2 1186 0.0142581 -30.0 2108 2018 328.5 0.0146328 21.7 -1485 0.0144910 -17.2 1188 0.0142581 -30.0 2101 2018 329.5 0.0146328 22.0 -1503 0.0144910 -17.2 1187 0.0142581 -30.1 2112 2018 330.5 0.0146328 22.1 -1514 0.0144910 -17.2 1186 0.0142581 -30.1 2112 2018 331.5 0.0146328 22.5 -1538 0.0144910 -17.0 1176 0.0142581 -30.0 2107 2018 332.5 0.0146328 22.6 -1544 0.0144910 -17.0 1175 0.0142581 -30.1 2112 2018 333.5 0.0146328 22.7 -1550 0.0144910 -17.0 1175 0.0142581 -30.2 2118 2018 334.5 0.0146328 22.7 -1550 0.0144910 -17.0 1174 0.0142581 -30.2 2118 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.