NOAA WORLD-WIDE MAGNETIC SURVEY FORMAT (NOAA)

COLUMNS         FMT             DESCRIPTION
  1             A1              BLANK
  2- 16         A15             STATION NAME (TRACK)
 17- 22         F6.3            TIME (YEAR AND FRACTION SINCE 1900)
 23- 24         A2              BLANK
 25- 31         F7.3            GEODETIC COLATITUDE (deg)
 32- 39         F8.3            EAST LONGITUDE (deg)
 40- 49         F10.3           DECLINATION (deg)
 50- 57         F8.3            INCLINATION (deg)
 58- 64         F7.0            HORIZONTAL INTENSITY, H (nT)
 65- 72         F8.0            NORTH COMPONENT, X (nT)
 73- 80         F8.0            EAST COMPONENT, Y (nT)
 81- 88         F8.0            VERTICAL INTENSITY, Z (nT)
 89- 95         F7.0            TOTAL INTENSITY, B OR F OR T (nT)
 96-100         I5              ALTITUDE (Tens of Meters, except Satellite
                                    data which is in KM)
101-102         I2              DATA CODE
FOR DATA FROM BGS AND FOR OUR INTERNAL USE, THE DATA CODE HAS BEEN
SUBDIVIDED INTO TWO ITEMS.  THE FIRST IS NEW; THE SECOND IS IDENTICAL
TO THE NOAA DATA CODE
101             A1              `*' IF CORRECTIONS HAVE BEEN MADE TO THIS RECORD
                                `A' IF ALL DATA ON THIS RECORD ARE ANOMALOUS
                                BLANK OTHERWISE
102             I1              DATA TYPE CODE
                                         1= LAND SURVEY DATA
                                         2= AEROMAGNETIC DATA
                                         3= UNUSED
                                         4= 3-COMPONENT MARINE DATA
                                         5= SATELLITE DATA
                                         6= MARINE TOTAL INTENSITY DATA
                                         9= REPEAT STATION DATA
                                         0= OBSERVATORY ANNUAL MEANS
103-106         I4              SOURCE NUMBER
107-114         I8              SERIAL NUMBER
115-121         7I1             ELEMENT CODE: OBSERVED ELEMENT CODE
                                         0= NO VALUE FOR THIS ELEMENT
                                         1= THIS ELEMENT HAS BEEN CALCULATED
                                         2= OBSERVED VALUE
                                THE FOLLOWING CODES HAVE BEEN ADDED
                                         3= COMPUTED VALUE REJECTED
                                         4= OBSERVED VALUE REJECTED
                                         5= COMPUTED VALUE REJECTED
                                         6= OBSERVED VALUE REJECTED
                                         7= GROSS OUTLIER
                                         8=  NOT USED
                                         9=  ANOMALOUS OBSERVED VALUE (BGS)
122-123         I2              GMT: UT (Hours)
124-125         I2              GMT: UT (Minutes)
126-130         A5              COUNTRY CODE: ABBREVIATED COUNTRY