  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% 

 2021.4170   JUN    84.2      82.2      79.9       7.9       7.1       6.6
 2021.5003   JUL    88.4      84.0      79.7       8.1       7.3       6.4
 2021.5837   AUG    92.7      86.1      79.9       8.7       7.5       6.4
 2021.6670   SEP    96.4      88.4      81.1       9.1       7.7       6.9
 2021.7503   OCT   100.1      90.7      82.6      10.3       7.8       7.0
 2021.8337   NOV   105.3      93.0      83.9      10.9       7.9       6.8
 2021.9170   DEC   111.4      95.5      84.8      11.2       8.1       6.4
 2022.0003   JAN   117.0      98.1      85.2      11.5       8.3       6.5
 2022.0837   FEB   122.9     100.6      85.6      12.2       8.6       7.0
 2022.1670   MAR   130.0     103.2      86.3      13.1       9.1       7.4
 2022.2503   APR   137.5     106.0      86.9      13.9       9.6       7.6
 2022.3337   MAY   142.4     108.8      87.7      14.6      10.0       7.9
 2022.4170   JUN   147.8     111.6      88.4      15.0      10.3       7.5
 2022.5003   JUL   153.6     114.1      88.4      14.7      10.4       7.0
 2022.5837   AUG   158.3     116.1      89.6      14.9      10.5       6.8
 2022.6670   SEP   162.7     118.1      88.9      14.8      10.6       6.6
 2022.7503   OCT   168.9     120.3      87.2      14.2      10.8       6.5
 2022.8337   NOV   176.1     122.7      85.6      14.5      11.0       6.1
 2022.9170   DEC   182.3     125.1      83.5      14.9      11.1       5.8
 2023.0003   JAN   187.7     127.2      81.6      15.0      11.3       5.5
 2023.0837   FEB   191.5     129.1      80.5      15.5      11.5       5.2
 2023.1670   MAR   195.1     130.8      80.1      15.5      11.5       5.1
 2023.2503   APR   199.2     132.5      81.7      15.7      11.5       5.1
 2023.3337   MAY   202.3     133.8      82.6      16.6      11.4       4.9
 2023.4170   JUN   203.3     134.9      82.2      16.7      11.3       4.8
 2023.5003   JUL   201.7     135.9      81.9      16.4      11.4       5.3
 2023.5837   AUG   200.1     136.5      80.8      16.2      11.6       5.9
 2023.6670   SEP   199.3     137.0      80.3      15.9      11.6       6.4
 2023.7503   OCT   199.7     137.6      82.5      15.4      11.5       6.5
 2023.8337   NOV   200.0     138.1      84.7      15.4      11.5       6.7
 2023.9170   DEC   201.7     138.5      87.0      15.2      11.5       6.8
 2024.0003   JAN   201.7     138.0      86.8      14.8      11.5       6.9
 2024.0837   FEB   199.1     137.1      85.3      15.3      11.7       7.6
 2024.1670   MAR   196.2     136.5      84.5      15.7      11.4       8.0
 2024.2503   APR   193.4     136.6      83.4      16.1      11.1       7.3
 2024.3337   MAY   191.8     137.1      81.8      16.9      11.0       7.5
 2024.4170   JUN   191.6     137.6      80.2      18.3      11.2       7.8
 2024.5003   JUL   191.2     137.8      78.7      19.5      11.4       8.1
 2024.5837   AUG   190.3     138.0      76.4      20.2      11.6       8.1
 2024.6670   SEP   189.1     137.9      74.3      21.3      11.9       8.1
 2024.7503   OCT   189.1     137.7      72.0      21.7      11.9       7.7
 2024.8337   NOV   189.3     137.6      70.9      21.0      12.0       7.7
 2024.9170   DEC   190.2     137.5      70.5      20.9      12.0       7.5
 2025.0003   JAN   189.5     136.8      69.5      20.1      12.0       7.1
 2025.0837   FEB   187.6     135.8      69.1      18.1      11.9       6.6
 2025.1670   MAR   185.8     134.6      68.8      16.5      12.0       6.5
 2025.2503   APR   184.6     133.3      69.0      16.3      12.3       6.7
 2025.3337   MAY   182.9     132.1      68.6      16.6      12.6       7.1
 2025.4170   JUN   179.8     131.2      69.2      16.9      12.7       7.5
 2025.5003   JUL   180.3     130.1      70.5      17.3      12.7       7.7
 2025.5837   AUG   180.2     128.7      72.0      18.0      12.6       7.3
 2025.6670   SEP   178.1     127.2      74.1      18.3      12.6       7.2
 2025.7503   OCT   176.6     126.1      76.4      18.6      12.7       7.7
 2025.8337   NOV   176.3     125.2      78.1      18.5      12.7       7.5
 2025.9170   DEC   175.4     124.5      80.0      17.9      12.8       7.4
 2026.0003   JAN   173.2     123.1      81.9      17.0      12.9       7.3
 2026.0837   FEB   169.9     121.5      82.4      16.2      12.9       7.2
 2026.1670   MAR   166.7     120.5      82.2      16.7      13.2       7.6
 2026.2503   APR   163.8     119.6      81.7      17.0      13.4       8.1
 2026.3337   MAY   162.0     118.3      80.6      17.1      13.6       8.9
 2026.4170   JUN   160.5     116.9      80.2      17.3      13.8       9.5
 2026.5003   JUL   157.2     115.4      80.4      17.7      14.0       9.7
 2026.5837   AUG   151.7     113.9      80.6      19.0      14.2      10.0
 2026.6670   SEP   146.5     112.4      80.1      20.1      14.2      10.4
 2026.7503   OCT   143.4     110.7      79.3      20.8      14.3      10.8
 2026.8337   NOV   141.3     108.9      78.8      20.9      14.5      11.4
 2026.9170   DEC   139.7     107.3      78.7      20.5      14.6      11.0
 2027.0003   JAN   137.0     105.8      78.7      19.9      14.6      10.4
 2027.0837   FEB   133.9     104.3      78.6      19.1      14.6       9.9
 2027.1670   MAR   130.6     103.0      78.7      18.4      14.3       9.5
 2027.2503   APR   128.3     101.8      78.9      18.5      14.0       9.0
 2027.3337   MAY   125.6     100.5      78.0      18.4      13.6       8.3
 2027.4170   JUN   121.1      99.1      77.0      18.5      13.2       7.1
 2027.5003   JUL   119.7      97.8      75.8      18.6      12.7       5.9
 2027.5837   AUG   119.2      96.5      74.4      18.6      12.2       5.5
 2027.6670   SEP   119.0      95.4      73.7      18.7      12.0       5.2
 2027.7503   OCT   118.1      94.3      73.1      18.8      11.9       5.0
 2027.8337   NOV   117.5      93.3      72.7      18.4      11.6       4.8
 2027.9170   DEC   117.1      92.4      72.5      17.7      11.4       4.9
 2028.0003   JAN   116.1      91.3      72.1      17.1      11.3       5.3
 2028.0837   FEB   114.7      90.4      71.8      16.5      11.4       5.8
 2028.1670   MAR   113.2      89.7      71.8      16.5      11.6       6.1
 2028.2503   APR   110.0      88.9      71.5      16.4      11.7       5.5
 2028.3337   MAY   105.8      87.8      71.1      16.8      12.1       5.1
 2028.4170   JUN   103.3      86.8      70.7      17.2      12.3       5.1
 2028.5003   JUL   101.9      86.1      70.4      17.7      12.5       5.6
 2028.5837   AUG   100.4      85.3      70.2      18.2      12.4       6.2
 2028.6670   SEP    97.6      84.5      69.8      18.5      12.4       6.6
 2028.7503   OCT    96.0      83.4      69.4      18.6      12.2       6.6
 2028.8337   NOV    94.2      82.3      69.3      18.4      12.2       6.8
 2028.9170   DEC    93.1      81.6      69.4      18.2      12.3       6.9
 2029.0003   JAN    93.0      80.9      69.4      17.9      12.5       7.2
 2029.0837   FEB    92.2      80.1      69.3      17.3      12.6       7.3
 2029.1670   MAR    91.3      79.2      69.1      16.8      12.6       7.3
 2029.2503   APR    90.2      78.4      68.8      17.1      12.4       7.2
 2029.3337   MAY    89.3      77.7      68.6      17.2      12.2       7.1
 2029.4170   JUN    88.2      77.0      68.5      17.3      12.1       6.9
 2029.5003   JUL    87.2      76.4      68.5      17.3      12.1       6.5
 2029.5837   AUG    86.5      76.0      68.5      17.5      12.2       6.4
 2029.6670   SEP    85.1      75.5      68.5      17.9      12.3       6.6
 2029.7503   OCT    83.8      75.1      68.5      17.8      12.2       6.5
 2029.8337   NOV    81.9      74.5      68.4      17.5      12.0       6.4
 2029.9170   DEC    79.6      73.8      68.4      17.2      11.8       6.2
 2030.0003   JAN    78.1      73.1      68.2      16.2      11.3       6.2
 2030.0837   FEB    77.4      72.5      67.9      14.7      10.8       6.2
 2030.1670   MAR    77.0      72.1      67.7      13.4      10.4       6.2
 2030.2503   APR    76.9      71.8      67.7      13.4      10.0       6.3
 2030.3337   MAY    76.6      71.4      67.5      13.1       9.6       6.4
 2030.4170   JUN    76.4      71.1      67.4      12.7       9.3       6.2
 2030.5003   JUL    76.0      70.7      67.3      12.5       9.1       6.0
 2030.5837   AUG    74.9      70.4      67.3      12.2       8.9       5.7
 2030.6670   SEP    73.9      70.1      67.3      11.4       8.6       5.2
 2030.7503   OCT    73.5      69.9      67.3      10.9       8.4       4.7
 2030.8337   NOV    73.1      69.7      67.2      10.7       8.1       4.3
 2030.9170   DEC    73.1      69.7      67.2      10.7       8.2       4.3
 2031.0003   JAN    73.2      69.8      67.2      11.0       8.3       4.2
 2031.0837   FEB    73.9      70.1      67.2      11.3       8.5       4.2
 2031.1670   MAR    74.8      70.5      67.3      11.4       8.6       4.1
 2031.2503   APR    75.5      70.9      67.4      11.7       8.7       3.8
 2031.3337   MAY    76.6      71.3      67.5      11.8       8.8       3.7
 2031.4170   JUN    78.3      71.9      67.7      12.0       8.9       3.6
 2031.5003   JUL    79.7      72.6      67.8      12.1       9.1       3.5
 2031.5837   AUG    81.1      73.4      67.9      12.5       9.3       3.4
 2031.6670   SEP    83.3      74.2      68.0      12.8       9.6       3.5
 2031.7503   OCT    86.2      75.2      68.1      13.2      10.0       3.8
 2031.8337   NOV    90.8      76.4      68.4      13.8      10.3       4.2
 2031.9170   DEC    95.1      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   208.8     135.1      75.8      20.5      14.7       8.1
 2033.8337   NOV   213.0     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   198.5     133.5      96.3      22.7      15.9       8.1
 2036.7503   OCT   194.7     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      88.5      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   160.7     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   118.5      97.5      75.6      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      70.6      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      68.0      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
