%year,Day,Kx (Range 0),O1 (nT),Counts @ O,Ky (Range 0),O2 (nT),Counts @ O,Kz (Range 0), O3 (nT),Counts @ O 2018 244.5 0.0146328 22.6 -1546 0.0144910 -17.2 1187 0.0142581 -29.8 2092 2018 245.5 0.0146328 22.6 -1546 0.0144910 -17.2 1187 0.0142581 -29.8 2092 2018 246.5 0.0146328 22.6 -1547 0.0144910 -17.1 1177 0.0142581 -29.8 2093 2018 247.5 0.0146328 22.7 -1549 0.0144910 -17.0 1177 0.0142581 -29.8 2089 2018 248.5 0.0146328 22.7 -1549 0.0144910 -17.1 1179 0.0142581 -29.8 2089 2018 249.5 0.0146328 22.6 -1548 0.0144910 -16.9 1164 0.0142581 -29.9 2096 2018 250.5 0.0146328 22.8 -1555 0.0144910 -17.2 1187 0.0142581 -29.8 2091 2018 251.5 0.0146328 22.5 -1540 0.0144910 -17.1 1179 0.0142581 -29.8 2087 2018 252.5 0.0146328 22.5 -1534 0.0144910 -17.1 1181 0.0142581 -29.8 2087 2018 253.5 0.0146328 22.4 -1527 0.0144910 -17.1 1182 0.0142581 -29.8 2087 2018 254.5 0.0146328 22.4 -1534 0.0144910 -17.0 1177 0.0142581 -29.9 2094 2018 255.5 0.0146328 22.5 -1539 0.0144910 -17.1 1177 0.0142581 -30.0 2102 2018 256.5 0.0146328 22.6 -1546 0.0144910 -17.0 1172 0.0142581 -29.8 2087 2018 257.5 0.0146328 22.8 -1556 0.0144910 -17.2 1188 0.0142581 -29.6 2080 2018 258.5 0.0146328 22.5 -1541 0.0144910 -17.3 1196 0.0142581 -29.6 2079 2018 259.5 0.0146328 22.3 -1526 0.0144910 -17.4 1204 0.0142581 -29.6 2078 2018 260.5 0.0146328 22.3 -1526 0.0144910 -17.1 1181 0.0142581 -29.8 2090 2018 261.5 0.0146328 22.6 -1543 0.0144910 -17.0 1175 0.0142581 -30.0 2101 2018 262.5 0.0146328 22.5 -1539 0.0144910 -17.0 1175 0.0142581 -29.9 2096 2018 263.5 0.0146328 22.5 -1534 0.0144910 -16.9 1166 0.0142581 -29.8 2091 2018 264.5 0.0146328 22.4 -1530 0.0144910 -16.8 1157 0.0142581 -29.8 2087 2018 265.5 0.0146328 22.3 -1523 0.0144910 -16.8 1162 0.0142581 -29.7 2084 2018 266.5 0.0146328 22.2 -1516 0.0144910 -16.9 1167 0.0142581 -29.7 2082 2018 267.5 0.0146328 22.1 -1509 0.0144910 -17.0 1172 0.0142581 -29.6 2079 2018 268.5 0.0146328 22.0 -1502 0.0144910 -17.0 1177 0.0142581 -29.6 2076 2018 269.5 0.0146328 21.9 -1495 0.0144910 -17.1 1181 0.0142581 -29.6 2074 2018 270.5 0.0146328 21.8 -1488 0.0144910 -17.3 1195 0.0142581 -29.5 2071 2018 271.5 0.0146328 21.8 -1493 0.0144910 -17.2 1186 0.0142581 -29.9 2094 2018 272.5 0.0146328 22.0 -1503 0.0144910 -17.1 1178 0.0142581 -30.1 2110 2018 273.5 0.0146328 22.1 -1508 0.0144910 -17.1 1182 0.0142581 -30.0 2106 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.