  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% 

 2024.3337   MAY   186.0     180.3     176.9      12.1      11.5      11.0
 2024.4170   JUN   189.7     180.2     173.9      13.3      11.7      10.5
 2024.5003   JUL   190.9     179.7     170.5      14.3      11.9      10.0
 2024.5837   AUG   192.5     179.1     166.4      14.9      12.1      10.0
 2024.6670   SEP   193.5     178.2     162.4      15.8      12.2       9.9
 2024.7503   OCT   194.6     177.4     158.3      16.0      12.3       9.5
 2024.8337   NOV   196.5     176.7     156.0      15.6      12.5       9.3
 2024.9170   DEC   194.6     176.0     153.6      15.9      12.6       9.0
 2025.0003   JAN   195.0     174.7     151.2      15.4      12.7       9.1
 2025.0837   FEB   195.4     172.8     148.5      15.5      12.8       9.1
 2025.1670   MAR   195.9     170.3     145.3      16.8      13.1       9.5
 2025.2503   APR   196.8     168.0     143.1      18.0      13.4       9.8
 2025.3337   MAY   196.8     166.1     140.4      18.7      13.6      10.0
 2025.4170   JUN   195.4     164.2     138.4      19.4      13.8      10.4
 2025.5003   JUL   193.1     161.8     136.4      20.1      13.9      10.4
 2025.5837   AUG   190.7     159.1     134.9      21.0      14.0      10.5
 2025.6670   SEP   187.5     155.9     133.0      21.6      14.3      10.8
 2025.7503   OCT   184.1     153.0     130.8      22.2      14.6      10.3
 2025.8337   NOV   183.0     150.5     129.3      22.3      14.7      10.3
 2025.9170   DEC   182.1     148.2     127.1      21.7      14.8      10.6
 2026.0003   JAN   180.1     145.6     124.3      20.8      14.8      10.5
 2026.0837   FEB   176.8     143.2     121.6      20.8      14.8      10.3
 2026.1670   MAR   172.9     141.3     119.7      20.8      14.9      10.6
 2026.2503   APR   169.1     139.6     117.6      21.2      15.0      11.1
 2026.3337   MAY   166.9     137.6     115.1      21.7      15.3      11.2
 2026.4170   JUN   165.2     135.5     113.5      21.9      15.5      10.9
 2026.5003   JUL   161.3     132.8     111.5      21.3      15.5      10.9
 2026.5837   AUG   155.3     130.0     108.8      20.4      15.5      11.5
 2026.6670   SEP   150.8     127.6     106.3      21.2      15.5      11.9
 2026.7503   OCT   148.9     125.3     104.2      21.7      15.4      12.7
 2026.8337   NOV   147.9     122.9     102.3      21.7      15.4      12.4
 2026.9170   DEC   146.1     120.8     101.2      21.3      15.6      11.9
 2027.0003   JAN   143.0     118.9     100.4      21.5      15.7      11.7
 2027.0837   FEB   139.4     116.6      98.7      21.3      15.7      11.7
 2027.1670   MAR   136.6     114.2      96.7      21.2      15.5      11.3
 2027.2503   APR   135.6     112.2      94.2      21.4      15.2      10.9
 2027.3337   MAY   134.7     110.1      91.0      21.6      14.9      10.5
 2027.4170   JUN   133.6     107.8      88.7      22.1      14.7       9.6
 2027.5003   JUL   132.5     105.8      86.9      22.6      14.4       8.6
 2027.5837   AUG   131.0     104.3      85.2      23.1      14.1       8.4
 2027.6670   SEP   130.0     102.9      84.0      23.4      13.9       8.2
 2027.7503   OCT   128.8     101.7      83.4      23.6      13.9       8.1
 2027.8337   NOV   126.9     100.8      83.3      23.5      13.7       8.3
 2027.9170   DEC   125.0      99.8      82.8      23.1      13.7       8.6
 2028.0003   JAN   123.3      98.4      81.8      22.3      13.5       9.0
 2028.0837   FEB   122.2      96.9      80.6      21.6      13.5       9.3
 2028.1670   MAR   120.6      95.4      79.5      21.4      13.7       8.7
 2028.2503   APR   117.5      93.8      78.8      21.2      13.8       8.0
 2028.3337   MAY   114.9      92.3      78.3      21.1      14.0       7.4
 2028.4170   JUN   112.3      91.0      78.0      20.7      14.1       7.3
 2028.5003   JUL   109.7      90.0      77.6      20.1      14.1       7.7
 2028.5837   AUG   107.7      88.9      77.0      20.0      14.0       8.1
 2028.6670   SEP   106.0      87.5      76.5      20.2      13.9       8.4
 2028.7503   OCT   103.7      86.1      76.0      20.3      13.7       8.4
 2028.8337   NOV   101.4      84.9      75.1      19.9      13.6       8.4
 2028.9170   DEC    99.8      84.0      75.0      19.5      13.5       8.3
 2029.0003   JAN    98.5      83.1      74.9      19.0      13.5       8.4
 2029.0837   FEB    96.8      82.3      74.5      18.3      13.4       8.4
 2029.1670   MAR    94.9      81.5      74.3      17.4      13.3       8.1
 2029.2503   APR    93.1      80.8      73.9      17.3      13.0       7.7
 2029.3337   MAY    92.1      80.2      73.6      17.4      12.7       7.5
 2029.4170   JUN    91.0      79.5      73.4      17.5      12.6       7.3
 2029.5003   JUL    89.9      78.8      73.3      17.5      12.5       7.2
 2029.5837   AUG    88.9      78.2      73.0      17.6      12.5       7.0
 2029.6670   SEP    87.4      77.6      72.6      17.7      12.4       7.0
 2029.7503   OCT    85.9      77.1      72.2      17.7      12.3       6.8
 2029.8337   NOV    83.9      76.5      72.0      17.4      12.1       6.8
 2029.9170   DEC    82.5      75.7      71.8      17.1      11.8       6.5
 2030.0003   JAN    81.0      74.9      71.2      16.2      11.5       6.4
 2030.0837   FEB    80.0      74.1      70.6      14.7      11.1       6.3
 2030.1670   MAR    79.3      73.5      70.1      13.9      10.8       6.2
 2030.2503   APR    78.9      73.0      69.9      14.0      10.5       6.3
 2030.3337   MAY    78.6      72.5      69.8      13.6      10.1       6.2
 2030.4170   JUN    78.3      72.1      69.5      13.2       9.8       6.1
 2030.5003   JUL    77.4      71.8      69.1      12.9       9.5       6.0
 2030.5837   AUG    76.3      71.5      68.8      12.6       9.3       5.9
 2030.6670   SEP    75.3      71.2      68.5      11.9       9.0       5.7
 2030.7503   OCT    74.8      71.0      68.4      11.4       8.8       5.2
 2030.8337   NOV    74.4      70.8      68.4      11.3       8.6       4.9
 2030.9170   DEC    74.3      70.7      68.3      11.2       8.6       4.9
 2031.0003   JAN    74.3      70.8      68.2      11.4       8.6       4.6
 2031.0837   FEB    74.9      71.0      68.1      11.7       8.8       4.6
 2031.1670   MAR    75.7      71.3      68.1      11.8       8.9       4.5
 2031.2503   APR    76.3      71.6      68.1      12.0       9.0       4.2
 2031.3337   MAY    77.3      71.9      68.1      12.1       9.0       3.9
 2031.4170   JUN    78.9      72.4      68.2      12.2       9.1       3.8
 2031.5003   JUL    80.2      73.0      68.2      12.3       9.2       3.7
 2031.5837   AUG    81.4      73.7      68.2      12.6       9.4       3.6
 2031.6670   SEP    83.6      74.4      68.2      12.9       9.6       3.5
 2031.7503   OCT    86.4      75.3      68.2      13.3      10.0       3.8
 2031.8337   NOV    90.8      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
