COLUMNS FMT DESCRIPTION
1- 2 I2 YEAR
3- 4 I2 MONTH
5- 6 I2 DAY
7-10 I4 BARTELS SOLAR ROTATION NUMBER-A SEQUENCE OF
27-DAY INTERVALS COUNTED CONTINUOUSLY FROM
FEBRUARY 8, 1832
11-12 I2 NUMBER OF DAY WITHIN THE BARTELS 27-DAY CYCLE
13-14 I2 Kp 3-HOUR RANGE INDEX FOR 0000 - 0300 UT
15-16 I2 Kp 3-HOUR RANGE INDEX FOR 0300 - 0600 UT
17-18 I2 Kp 3-HOUR RANGE INDEX FOR 0600 - 0900 UT
19-20 I2 Kp 3-HOUR RANGE INDEX FOR 0900 - 1200 UT
21-22 I2 Kp 3-HOUR RANGE INDEX FOR 1200 - 1500 UT
23-24 I2 Kp 3-HOUR RANGE INDEX FOR 1500 - 1800 UT
25-26 I2 Kp 3-HOUR RANGE INDEX FOR 1800 - 2100 UT
27-28 I2 Kp 3-HOUR RANGE INDEX FOR 2100 - 2400 UT
29-31 I3 SUM OF THE EIGHT Kp INDICES FOR THE DAY EXPRESSED
TO THE NEAREST THIRD OF A UNIT
32-34 I3 AP AMPLITUDE FOR 0000 - 0300 UT
35-37 I3 AP AMPLITUDE FOR 0300 - 0600 UT
38-40 I3 AP AMPLITUDE FOR 0600 - 0900 UT
41-43 I3 AP AMPLITUDE FOR 0900 - 1200 UT
44-46 I3 AP AMPLITUDE FOR 1200 - 1500 UT
47-49 I3 AP AMPLITUDE FOR 1500 - 1800 UT
50-52 I3 AP AMPLITUDE FOR 1800 - 2100 UT
53-55 I3 AP AMPLITUDE FOR 2100 - 2400 UT
56-58 I3 THE ARITHMETIC MEAN OF THE DAY'S EIGHT AP VALUES
59-61 F3.1 CP OR PLANETARY DAILY CHARACTER FIGURE;
A QUALITATIVE ESTIMATE OF OVERALL LEVEL OF
MAGNETIC ACTIVITY FOR THE DAY DETERMINED FROM
THE SUM OF THE EIGHT AP AMPLITUDES;
CP RANGES, IN STEPS OF ONE-TENTH,
FROM 0 (QUIET) TO 2.5 (HIGHLY DISTURBED)
62-62 I1 C9 - A CONVERSION OF THE 0-TO-2.5 RANGE OF THE
CP INDEX TO ONE DIGIT BETWEEN 0 AND 9
63-65 I3 INTERNATIONAL SUNSPOT NUMBER - RECORDS CONTAIN
THE ZURICH NUMBER THROUGH DECEMBER 31, 1980, AND
THE INTERNATIONAL BRUSSELS NUMBER THEREAFTER
66-70 F5.1 OTTAWA 10.7-CM SOLAR RADIO FLUX ADJUSTED TO 1 AU
MEASURED AT 1700 UT DAILY AND EXPRESSED IN UNITS
OF 10 TO THE -22 WATTS/METER SQ/HERTZ;
OBSERVATIONS BEGAN ON FEBRUARY 14, 1947
FROM THAT DATE THROUGH DECEMBER 31, 1973, THE
FLUXES GIVEN HERE DON'T REFLECT THE REVISIONS
OTTAWA MADE IN 1966
71-71 I1 FLUX QUALIFIER
0= INDICATES FLUX REQUIRED NO ADJUSTMENT
1= INDICATES FLUX REQUIRED ADJUSTMENT FOR BURST
IN PROGRESS AT TIME OF MEASUREMENT
2= INDICATES A FLUX APPROXIMATED BY EITHER
INTERPOLATION OR EXTRAPOLATION
3= INDICATES NO OBSERVATION