%year,Day,Kx (Range 0),O1 (nT),Counts @ O,Ky (Range 0),O2 (nT),Counts @ O,Kz (Range 0), O3 (nT),Counts @ O
2018   121.5   0.0146328    22.5     -1540   0.0144910   -17.0      1171   0.0142581   -29.2      2047
2018   122.5   0.0146328    22.2     -1515   0.0144910   -17.1      1179   0.0142581   -29.3      2056
2018   123.5   0.0146328    21.8     -1491   0.0144910   -17.1      1181   0.0142581   -29.5      2065
2018   124.5   0.0146328    22.2     -1516   0.0144910   -17.0      1171   0.0142581   -29.5      2066
2018   125.5   0.0146328    22.2     -1519   0.0144910   -17.0      1172   0.0142581   -30.0      2107
2018   126.5   0.0146328    22.3     -1522   0.0144910   -17.0      1174   0.0142581   -29.6      2079
2018   127.5   0.0146328    22.3     -1521   0.0144910   -17.2      1190   0.0142581   -29.4      2061
2018   128.5   0.0146328    22.3     -1521   0.0144910   -16.9      1167   0.0142581   -29.4      2064
2018   129.5   0.0146328    22.2     -1521   0.0144910   -17.0      1177   0.0142581   -29.5      2067
2018   130.5   0.0146328    22.2     -1515   0.0144910   -17.1      1182   0.0142581   -29.4      2064
2018   131.5   0.0146328    22.2     -1516   0.0144910   -17.0      1172   0.0142581   -29.5      2066
2018   132.5   0.0146328    22.1     -1509   0.0144910   -17.0      1171   0.0142581   -29.6      2078
2018   133.5   0.0146328    22.2     -1516   0.0144910   -17.0      1177   0.0142581   -29.7      2082
2018   134.5   0.0146328    22.3     -1523   0.0144910   -17.1      1182   0.0142581   -29.8      2087
2018   135.5   0.0146328    22.3     -1526   0.0144910   -17.0      1177   0.0142581   -29.7      2084
2018   136.5   0.0146328    22.2     -1520   0.0144910   -17.0      1176   0.0142581   -29.8      2087
2018   137.5   0.0146328    22.1     -1514   0.0144910   -17.0      1175   0.0142581   -29.7      2084
2018   138.5   0.0146328    22.1     -1508   0.0144910   -17.0      1174   0.0142581   -29.7      2081
2018   139.5   0.0146328    22.0     -1503   0.0144910   -16.9      1169   0.0142581   -29.6      2077
2018   140.5   0.0146328    22.0     -1500   0.0144910   -16.9      1165   0.0142581   -29.6      2075
2018   141.5   0.0146328    22.0     -1502   0.0144910   -16.9      1165   0.0142581   -29.9      2095
2018   142.5   0.0146328    22.0     -1503   0.0144910   -17.0      1176   0.0142581   -29.9      2098
2018   143.5   0.0146328    22.4     -1533   0.0144910   -16.6      1148   0.0142581   -30.1      2112
2018   144.5   0.0146328    22.0     -1503   0.0144910   -17.1      1179   0.0142581   -29.6      2080
2018   145.5   0.0146328    22.0     -1505   0.0144910   -17.0      1173   0.0142581   -29.6      2079
2018   146.5   0.0146328    22.0     -1506   0.0144910   -17.0      1175   0.0142581   -29.5      2068
2018   147.5   0.0146328    22.1     -1512   0.0144910   -17.0      1170   0.0142581   -29.6      2079
2018   148.5   0.0146328    22.1     -1511   0.0144910   -17.0      1177   0.0142581   -29.6      2073
2018   149.5   0.0146328    21.9     -1495   0.0144910   -17.1      1178   0.0142581   -29.6      2074
2018   150.5   0.0146328    22.0     -1503   0.0144910   -17.1      1183   0.0142581   -29.4      2064
2018   151.5   0.0146328    22.0     -1503   0.0144910   -17.2      1185   0.0142581   -29.5      2072
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.