%year,Day,Kx (Range 0),O1 (nT),Counts @ O,Ky (Range 0),O2 (nT),Counts @ O,Kz (Range 0), O3 (nT),Counts @ O
2018     1.5   0.0146328    22.4     -1529   0.0144910   -17.0      1177   0.0142581   -30.1      2115
2018     2.5   0.0146328    22.4     -1529   0.0144910   -17.2      1188   0.0142581   -30.3      2125
2018     3.5   0.0146328    22.2     -1516   0.0144910   -16.8      1158   0.0142581   -30.5      2136
2018     4.5   0.0146328    21.6     -1479   0.0144910   -17.2      1186   0.0142581   -30.2      2119
2018     5.5   0.0146328    21.7     -1485   0.0144910   -17.1      1181   0.0142581   -30.2      2119
2018     6.5   0.0146328    21.8     -1492   0.0144910   -17.1      1181   0.0142581   -30.1      2115
2018     7.5   0.0146328    21.5     -1469   0.0144910   -17.2      1188   0.0142581   -30.1      2114
2018     8.5   0.0146328    21.7     -1485   0.0144910   -17.2      1190   0.0142581   -30.1      2111
2018     9.5   0.0146328    22.0     -1501   0.0144910   -17.3      1193   0.0142581   -30.0      2108
2018    10.5   0.0146328    21.6     -1473   0.0144910   -17.1      1183   0.0142581   -30.1      2112
2018    11.5   0.0146328    21.8     -1488   0.0144910   -17.1      1181   0.0142581   -30.1      2114
2018    12.5   0.0146328    21.5     -1473   0.0144910   -17.2      1186   0.0142581   -30.1      2114
2018    13.5   0.0146328    21.8     -1490   0.0144910   -17.0      1177   0.0142581   -30.0      2101
2018    14.5   0.0146328    22.2     -1517   0.0144910   -17.1      1182   0.0142581   -30.1      2110
2018    15.5   0.0146328    22.3     -1523   0.0144910   -17.1      1179   0.0142581   -30.1      2111
2018    16.5   0.0146328    22.2     -1520   0.0144910   -17.1      1180   0.0142581   -30.2      2115
2018    17.5   0.0146328    22.2     -1517   0.0144910   -17.1      1183   0.0142581   -30.2      2119
2018    18.5   0.0146328    22.2     -1514   0.0144910   -17.2      1186   0.0142581   -30.3      2123
2018    19.5   0.0146328    22.1     -1512   0.0144910   -17.1      1182   0.0142581   -30.3      2127
2018    20.5   0.0146328    22.3     -1527   0.0144910   -17.3      1191   0.0142581   -30.2      2119
2018    21.5   0.0146328    22.3     -1527   0.0144910   -17.3      1192   0.0142581   -30.4      2133
2018    22.5   0.0146328    22.4     -1527   0.0144910   -17.3      1193   0.0142581   -30.6      2146
2018    23.5   0.0146328    22.1     -1510   0.0144910   -17.2      1186   0.0142581   -30.5      2136
2018    24.5   0.0146328    21.8     -1491   0.0144910   -17.1      1180   0.0142581   -30.3      2126
2018    25.5   0.0146328    21.9     -1499   0.0144910   -17.0      1175   0.0142581   -30.1      2111
2018    26.5   0.0146328    21.7     -1480   0.0144910   -17.5      1206   0.0142581   -30.1      2111
2018    27.5   0.0146328    21.8     -1486   0.0144910   -17.3      1191   0.0142581   -30.1      2109
2018    28.5   0.0146328    21.7     -1485   0.0144910   -17.2      1189   0.0142581   -30.2      2119
2018    29.5   0.0146328    21.8     -1488   0.0144910   -17.1      1179   0.0142581   -30.0      2105
2018    30.5   0.0146328    21.9     -1499   0.0144910   -17.1      1180   0.0142581   -30.2      2117
2018    31.5   0.0146328    22.2     -1514   0.0144910   -17.1      1182   0.0142581   -30.1      2112
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.