  TABLE 3 ESTIMATES OF 13-MONTH SMOOTH SOLAR ACTIVITY FOR
  BALANCE OF CYCLE 25 WITH A MEAN CYCLE GIVEN FOR CYCLE 26

    TIME         10.7 CM SOLAR FLUX   (F10.7)      GEOMAGNETIC INDEX   (Ap)
                         PERCENTILE                    PERCENTILE
                  95.0%       50%      5.0%     95.0%       50%      5.0% 

 2025.3337   MAY   169.0     164.4     160.0      14.9      14.2      13.3
 2025.4170   JUN   171.2     162.7     155.2      15.8      14.2      12.9
 2025.5003   JUL   170.8     160.6     150.1      16.7      14.3      11.9
 2025.5837   AUG   169.4     158.1     146.3      17.6      14.3      11.6
 2025.6670   SEP   170.2     155.1     142.1      18.2      14.5      11.2
 2025.7503   OCT   169.4     152.3     136.7      18.7      14.8      10.7
 2025.8337   NOV   168.8     149.9     132.5      18.8      15.0      11.0
 2025.9170   DEC   169.7     147.7     129.8      18.8      15.2      11.6
 2026.0003   JAN   169.5     145.0     125.6      19.5      15.3      11.6
 2026.0837   FEB   167.5     142.4     121.5      19.8      15.4      11.6
 2026.1670   MAR   164.2     140.4     119.2      20.1      15.4      11.9
 2026.2503   APR   161.2     138.6     118.1      20.6      15.5      11.9
 2026.3337   MAY   158.8     136.5     116.9      21.2      15.7      12.3
 2026.4170   JUN   156.1     134.2     115.5      21.5      15.9      12.2
 2026.5003   JUL   152.6     131.5     113.6      21.1      16.1      12.5
 2026.5837   AUG   146.2     128.6     111.4      20.5      16.0      12.2
 2026.6670   SEP   143.0     126.2     109.2      21.1      16.0      12.2
 2026.7503   OCT   142.4     123.9     106.7      21.7      15.9      12.5
 2026.8337   NOV   141.9     121.6     103.6      21.7      15.9      12.3
 2026.9170   DEC   140.1     119.5     101.1      22.1      16.0      11.9
 2027.0003   JAN   137.1     117.6      99.9      22.5      16.1      11.6
 2027.0837   FEB   133.8     115.4      98.4      22.3      16.1      11.6
 2027.1670   MAR   131.8     113.2      96.1      22.3      15.9      11.4
 2027.2503   APR   131.2     111.2      93.3      22.6      15.7      11.4
 2027.3337   MAY   130.7     109.1      90.0      22.8      15.4      11.3
 2027.4170   JUN   129.6     106.7      87.3      23.3      15.2      10.5
 2027.5003   JUL   128.5     104.7      85.1      24.0      14.9       9.9
 2027.5837   AUG   127.1     103.2      83.4      24.7      14.8      10.0
 2027.6670   SEP   126.6     101.8      82.3      25.2      14.7      10.1
 2027.7503   OCT   125.5     100.6      81.7      25.4      14.7      10.3
 2027.8337   NOV   123.4      99.6      81.5      25.3      14.6      10.3
 2027.9170   DEC   121.4      98.6      80.9      24.8      14.4      10.4
 2028.0003   JAN   119.7      97.2      79.9      23.9      14.2       9.8
 2028.0837   FEB   118.8      95.7      78.8      23.0      14.1       9.3
 2028.1670   MAR   117.6      94.4      77.9      22.5      14.2       8.8
 2028.2503   APR   114.9      92.9      77.4      22.1      14.3       8.2
 2028.3337   MAY   112.2      91.4      77.1      21.9      14.4       7.7
 2028.4170   JUN   109.6      90.2      76.9      21.4      14.6       7.7
 2028.5003   JUL   107.0      89.2      76.5      20.8      14.5       8.0
 2028.5837   AUG   105.4      88.1      76.1      20.0      14.4       8.4
 2028.6670   SEP   103.8      86.7      75.6      19.9      14.2       8.7
 2028.7503   OCT   101.4      85.3      74.9      20.1      13.9       8.5
 2028.8337   NOV    99.0      84.1      74.0      19.9      13.7       8.4
 2028.9170   DEC    97.3      83.1      73.7      19.4      13.6       8.4
 2029.0003   JAN    96.1      82.2      73.2      18.9      13.6       8.3
 2029.0837   FEB    95.1      81.4      72.8      18.2      13.6       8.1
 2029.1670   MAR    93.4      80.7      72.5      17.3      13.5       7.8
 2029.2503   APR    92.5      79.9      71.9      17.4      13.2       7.5
 2029.3337   MAY    91.7      79.3      71.6      17.5      13.0       7.5
 2029.4170   JUN    90.6      78.6      71.4      17.7      12.9       7.4
 2029.5003   JUL    89.6      78.0      71.4      17.7      12.8       7.0
 2029.5837   AUG    88.6      77.4      71.2      17.7      12.7       6.7
 2029.6670   SEP    87.2      76.9      71.3      17.8      12.6       6.9
 2029.7503   OCT    85.9      76.5      71.6      17.8      12.5       6.7
 2029.8337   NOV    83.9      75.9      71.5      17.6      12.3       6.5
 2029.9170   DEC    81.7      75.2      71.4      17.3      12.0       6.3
 2030.0003   JAN    80.3      74.5      70.8      16.3      11.6       6.2
 2030.0837   FEB    79.3      73.8      70.3      14.8      11.2       6.1
 2030.1670   MAR    78.9      73.2      69.9      13.8      10.9       6.1
 2030.2503   APR    78.6      72.8      69.7      13.9      10.6       6.1
 2030.3337   MAY    78.3      72.4      69.6      13.6      10.2       6.0
 2030.4170   JUN    78.0      72.1      69.3      13.2       9.9       5.8
 2030.5003   JUL    77.1      71.7      69.0      12.9       9.6       5.7
 2030.5837   AUG    75.9      71.4      68.7      12.5       9.4       5.6
 2030.6670   SEP    75.0      71.2      68.4      11.8       9.2       5.6
 2030.7503   OCT    74.6      71.0      68.2      11.3       8.9       5.3
 2030.8337   NOV    74.2      70.8      68.3      11.2       8.7       5.0
 2030.9170   DEC    74.1      70.7      68.2      11.1       8.7       5.0
 2031.0003   JAN    74.1      70.7      68.1      11.4       8.8       4.7
 2031.0837   FEB    74.7      71.0      68.0      11.7       8.9       4.7
 2031.1670   MAR    75.5      71.3      68.1      11.8       9.0       4.6
 2031.2503   APR    76.1      71.6      68.0      12.0       9.1       4.2
 2031.3337   MAY    77.2      71.9      68.1      12.1       9.1       4.0
 2031.4170   JUN    78.8      72.4      68.1      12.2       9.2       3.9
 2031.5003   JUL    80.1      73.0      68.1      12.3       9.3       3.7
 2031.5837   AUG    81.3      73.7      68.2      12.6       9.4       3.6
 2031.6670   SEP    83.5      74.4      68.2      12.9       9.7       3.6
 2031.7503   OCT    86.3      75.3      68.2      13.3      10.0       3.8
 2031.8337   NOV    90.9      76.4      68.4      13.8      10.4       4.2
 2031.9170   DEC    95.2      77.8      68.5      14.6      10.6       4.5
 2032.0003   JAN    98.5      79.4      68.5      15.7      10.9       4.7
 2032.0837   FEB   103.6      81.1      68.5      16.1      11.1       4.8
 2032.1670   MAR   109.2      83.1      68.5      16.3      11.3       5.0
 2032.2503   APR   115.2      85.2      68.4      16.9      11.4       5.1
 2032.3337   MAY   122.0      87.5      68.6      18.0      11.6       5.3
 2032.4170   JUN   130.1      89.9      68.7      18.9      11.9       5.4
 2032.5003   JUL   136.6      92.5      69.0      19.1      12.1       5.6
 2032.5837   AUG   141.4      95.3      69.3      19.2      12.3       5.8
 2032.6670   SEP   145.9      98.1      69.4      19.0      12.6       6.0
 2032.7503   OCT   150.4     100.9      69.6      18.6      12.7       6.1
 2032.8337   NOV   155.4     103.7      70.1      18.5      12.7       6.1
 2032.9170   DEC   160.9     106.7      70.8      18.9      12.8       6.1
 2033.0003   JAN   166.3     109.8      71.0      18.8      12.9       6.3
 2033.0837   FEB   171.1     113.0      71.4      17.8      13.0       6.5
 2033.1670   MAR   177.2     116.2      71.7      17.9      13.2       6.7
 2033.2503   APR   184.3     119.3      72.3      18.4      13.4       7.1
 2033.3337   MAY   189.1     122.6      73.1      19.1      13.7       7.0
 2033.4170   JUN   192.1     125.6      73.5      19.6      14.2       7.0
 2033.5003   JUL   195.2     128.1      74.3      20.3      14.5       7.1
 2033.5837   AUG   198.1     130.2      74.9      20.3      14.5       7.2
 2033.6670   SEP   203.0     132.5      75.3      20.3      14.6       7.7
 2033.7503   OCT   208.9     135.1      75.8      20.5      14.7       8.1
 2033.8337   NOV   213.1     137.6      76.2      20.8      14.8       8.0
 2033.9170   DEC   215.9     139.9      76.5      21.2      14.8       8.0
 2034.0003   JAN   219.7     141.9      76.5      21.3      14.6       8.4
 2034.0837   FEB   223.3     143.7      76.5      21.4      14.6       8.6
 2034.1670   MAR   224.8     145.3      76.8      21.6      14.6       8.4
 2034.2503   APR   225.6     146.8      77.3      22.0      14.5       8.4
 2034.3337   MAY   228.0     147.9      77.8      22.7      14.4       8.6
 2034.4170   JUN   230.3     148.7      78.5      22.4      14.1       8.6
 2034.5003   JUL   233.0     149.3      79.8      21.3      13.8       8.5
 2034.5837   AUG   235.9     149.6      80.6      20.6      13.7       8.3
 2034.6670   SEP   237.0     149.9      81.6      20.1      13.6       8.0
 2034.7503   OCT   234.9     150.2      83.1      19.7      13.5       7.6
 2034.8337   NOV   232.6     150.3      84.6      19.6      13.5       7.5
 2034.9170   DEC   233.6     150.3      86.2      19.3      13.5       7.8
 2035.0003   JAN   234.0     149.6      87.0      19.1      13.7       7.7
 2035.0837   FEB   231.8     148.5      88.2      18.9      13.9       7.6
 2035.1670   MAR   228.8     147.7      89.8      18.9      14.0       7.5
 2035.2503   APR   225.5     147.5      90.9      19.5      13.9       7.2
 2035.3337   MAY   224.0     147.8      93.0      20.4      14.0       7.1
 2035.4170   JUN   225.0     148.2      94.3      22.0      14.4       7.1
 2035.5003   JUL   224.9     148.2      95.7      23.4      14.7       7.1
 2035.5837   AUG   223.7     148.0      96.0      24.0      14.9       7.3
 2035.6670   SEP   222.8     147.6      95.6      25.1      15.1       7.3
 2035.7503   OCT   222.5     147.2      95.5      25.7      15.3       7.0
 2035.8337   NOV   222.1     147.0      97.0      24.9      15.3       7.1
 2035.9170   DEC   221.5     146.6      97.8      24.8      15.3       6.7
 2036.0003   JAN   220.9     145.8      97.3      24.0      15.3       6.3
 2036.0837   FEB   218.8     144.6      96.5      22.2      15.3       6.1
 2036.1670   MAR   215.7     143.1      96.4      22.5      15.5       6.3
 2036.2503   APR   213.2     141.4      96.9      23.2      15.7       6.5
 2036.3337   MAY   210.6     140.0      96.4      23.2      15.7       6.7
 2036.4170   JUN   206.4     138.7      95.7      22.7      15.7       7.1
 2036.5003   JUL   203.6     137.2      96.3      22.0      15.6       7.6
 2036.5837   AUG   202.2     135.5      97.2      21.9      15.7       7.7
 2036.6670   SEP   198.4     133.5      96.3      22.7      15.9       8.1
 2036.7503   OCT   194.6     131.8      94.6      23.6      16.2       8.7
 2036.8337   NOV   192.8     130.4      93.8      23.8      16.4       8.9
 2036.9170   DEC   191.1     129.2      93.6      23.8      16.6       9.3
 2037.0003   JAN   187.6     127.5      91.8      23.8      16.6       9.7
 2037.0837   FEB   183.5     125.7      88.4      23.4      16.6      10.1
 2037.1670   MAR   179.5     124.4      88.0      22.5      16.5      10.5
 2037.2503   APR   175.8     123.3      88.7      22.7      16.4      10.7
 2037.3337   MAY   173.5     121.9      87.3      22.9      16.5      11.5
 2037.4170   JUN   171.4     120.3      86.3      23.0      16.6      11.7
 2037.5003   JUL   167.1     118.5      85.7      22.4      16.7      11.9
 2037.5837   AUG   160.8     116.7      84.9      21.5      16.5      11.9
 2037.6670   SEP   155.0     115.0      83.7      21.2      16.3      11.7
 2037.7503   OCT   151.3     113.1      82.7      21.7      16.1      11.4
 2037.8337   NOV   148.8     111.2      82.3      21.7      16.1      11.5
 2037.9170   DEC   146.2     109.6      82.2      22.1      16.1      11.4
 2038.0003   JAN   143.2     108.0      82.0      22.5      16.2      11.2
 2038.0837   FEB   139.6     106.4      81.0      22.3      16.2      11.0
 2038.1670   MAR   135.9     104.8      80.6      22.3      16.0      10.8
 2038.2503   APR   132.4     103.4      80.6      22.7      15.8      10.7
 2038.3337   MAY   128.4     101.8      80.0      22.9      15.5      10.6
 2038.4170   JUN   123.3     100.2      79.1      23.4      15.3      10.3
 2038.5003   JUL   119.4      98.7      77.7      24.0      15.0      10.1
 2038.5837   AUG   118.6      97.5      75.7      24.7      14.9      10.1
 2038.6670   SEP   118.7      96.3      74.6      25.3      14.8      10.1
 2038.7503   OCT   119.2      95.2      74.1      25.4      14.8      10.5
 2038.8337   NOV   119.5      94.3      73.8      25.3      14.7      10.4
 2038.9170   DEC   118.8      93.3      73.5      24.8      14.5      10.2
 2039.0003   JAN   117.3      92.1      73.1      23.9      14.3      10.0
 2039.0837   FEB   115.7      91.0      72.7      23.0      14.1       9.4
 2039.1670   MAR   113.5      90.0      72.0      22.5      14.2       8.8
 2039.2503   APR   110.0      89.0      71.4      22.1      14.2       8.1
 2039.3337   MAY   105.8      87.8      71.1      21.8      14.3       7.5
 2039.4170   JUN   103.2      86.8      70.8      21.4      14.5       7.4
 2039.5003   JUL   101.6      85.9      70.5      20.8      14.4       7.7
 2039.5837   AUG   100.1      85.1      70.6      20.0      14.3       8.1
 2039.6670   SEP    98.1      84.1      70.4      20.0      14.1       8.5
 2039.7503   OCT    96.5      83.0      69.9      20.2      13.9       8.5
 2039.8337   NOV    94.6      82.0      69.6      19.8      13.7       8.5
 2039.9170   DEC    93.5      81.3      69.5      19.4      13.6       8.4
 2040.0003   JAN    93.1      80.6      69.5      18.9      13.6       8.4
 2040.0837   FEB    92.3      80.0      69.3      18.2      13.6       8.1
 2040.1670   MAR    91.2      79.2      69.2      17.3      13.5       7.7
 2040.2503   APR    90.3      78.5      68.8      17.3      13.3       7.1
 2040.3337   MAY    89.5      77.8      68.6      17.4      13.2       6.8
 2040.4170   JUN    88.4      77.2      68.4      17.5      13.1       6.6
 2040.5003   JUL    87.4      76.6      68.4      17.5      12.9       6.5
 2040.5837   AUG    86.6      76.1      68.5      17.7      12.9       6.6
 2040.6670   SEP    85.2      75.6      68.5      18.0      12.7       6.5
 2040.7503   OCT    83.9      75.1      68.5      17.9      12.6       6.4
 2040.8337   NOV    82.0      74.6      68.4      17.6      12.3       6.4
 2040.9170   DEC    79.9      73.9      68.3      17.3      12.0       6.2
 2041.0003   JAN    78.4      73.2      68.1      16.3      11.7       6.1
 2041.0837   FEB    77.5      72.6      67.8      14.9      11.2       6.0
 2041.1670   MAR    77.0      72.1      67.7      13.8      10.9       6.1
 2041.2503   APR    76.9      71.8      67.6      13.9      10.5       6.2
 2041.3337   MAY    76.6      71.5      67.5      13.6      10.2       6.2
 2041.4170   JUN    76.5      71.1      67.3      13.2       9.8       6.0
 2041.5003   JUL    76.1      70.8      67.1      12.9       9.5       5.9
 2041.5837   AUG    75.1      70.5      67.1      12.6       9.3       5.8
 2041.6670   SEP    74.2      70.2      67.0      11.9       9.1       5.7
 2041.7503   OCT    74.0      70.0      67.0      11.4       8.9       5.2
