%year,Day,Kx (Range 0),O1 (nT),Counts @ O,Ky (Range 0),O2 (nT),Counts @ O,Kz (Range 0), O3 (nT),Counts @ O
2018   152.5   0.0146328    22.1     -1510   0.0144910   -17.1      1177   0.0142581   -29.6      2079
2018   153.5   0.0146328    21.8     -1486   0.0144910   -17.0      1175   0.0142581   -29.7      2082
2018   154.5   0.0146328    22.4     -1530   0.0144910   -17.0      1172   0.0142581   -29.7      2081
2018   155.5   0.0146328    22.4     -1529   0.0144910   -16.9      1167   0.0142581   -29.6      2079
2018   156.5   0.0146328    22.4     -1529   0.0144910   -16.8      1162   0.0142581   -29.6      2077
2018   157.5   0.0146328    22.4     -1527   0.0144910   -17.1      1179   0.0142581   -29.6      2076
2018   158.5   0.0146328    22.6     -1545   0.0144910   -16.9      1164   0.0142581   -29.7      2081
2018   159.5   0.0146328    22.2     -1516   0.0144910   -17.1      1178   0.0142581   -29.5      2066
2018   160.5   0.0146328    22.6     -1542   0.0144910   -17.1      1177   0.0142581   -29.6      2075
2018   161.5   0.0146328    22.5     -1541   0.0144910   -17.0      1170   0.0142581   -29.6      2079
2018   162.5   0.0146328    22.5     -1540   0.0144910   -17.0      1174   0.0142581   -29.7      2083
2018   163.5   0.0146328    22.5     -1539   0.0144910   -17.1      1178   0.0142581   -29.8      2087
2018   164.5   0.0146328    22.5     -1538   0.0144910   -17.1      1183   0.0142581   -29.8      2091
2018   165.5   0.0146328    22.5     -1537   0.0144910   -17.2      1187   0.0142581   -29.9      2095
2018   166.5   0.0146328    22.5     -1536   0.0144910   -17.3      1191   0.0142581   -29.9      2098
2018   167.5   0.0146328    22.6     -1547   0.0144910   -17.2      1186   0.0142581   -29.8      2088
2018   168.5   0.0146328    22.8     -1557   0.0144910   -17.1      1182   0.0142581   -29.6      2078
2018   169.5   0.0146328    22.5     -1538   0.0144910   -17.1      1179   0.0142581   -29.6      2076
2018   170.5   0.0146328    22.2     -1519   0.0144910   -17.1      1177   0.0142581   -29.6      2075
2018   171.5   0.0146328    22.1     -1512   0.0144910   -17.1      1181   0.0142581   -29.5      2071
2018   172.5   0.0146328    22.1     -1514   0.0144910   -17.1      1180   0.0142581   -29.5      2072
2018   173.5   0.0146328    22.1     -1508   0.0144910   -17.0      1172   0.0142581   -29.6      2078
2018   174.5   0.0146328    22.0     -1506   0.0144910   -17.1      1180   0.0142581   -29.5      2065
2018   175.5   0.0146328    22.0     -1501   0.0144910   -17.1      1177   0.0142581   -29.5      2073
2018   176.5   0.0146328    22.0     -1507   0.0144910   -17.0      1175   0.0142581   -29.7      2084
2018   177.5   0.0146328    22.1     -1510   0.0144910   -17.0      1172   0.0142581   -29.5      2071
2018   178.5   0.0146328    22.0     -1501   0.0144910   -17.0      1174   0.0142581   -29.6      2076
2018   179.5   0.0146328    22.4     -1534   0.0144910   -17.0      1173   0.0142581   -29.5      2073
2018   180.5   0.0146328    22.1     -1511   0.0144910   -17.2      1184   0.0142581   -29.5      2067
2018   181.5   0.0146328    21.9     -1493   0.0144910   -17.1      1179   0.0142581   -29.3      2054
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.