  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% 

 2024.1670   MAR   173.3     168.5     165.4      11.6      10.6       9.8
 2024.2503   APR   177.8     167.8     160.8      12.1      10.4       8.6
 2024.3337   MAY   183.0     167.7     158.4      12.7      10.4       8.4
 2024.4170   JUN   186.8     167.8     157.6      13.9      10.5       8.7
 2024.5003   JUL   188.0     167.4     154.9      15.0      10.7       8.1
 2024.5837   AUG   189.8     166.9     150.5      15.6      10.9       8.1
 2024.6670   SEP   190.7     166.2     146.7      16.5      11.0       8.0
 2024.7503   OCT   191.9     165.5     142.8      16.7      11.1       7.5
 2024.8337   NOV   193.9     165.0     140.2      16.3      11.2       7.3
 2024.9170   DEC   192.0     164.4     138.3      16.5      11.4       7.2
 2025.0003   JAN   190.0     163.3     136.3      16.0      11.5       7.3
 2025.0837   FEB   189.3     161.7     134.3      16.1      11.7       7.4
 2025.1670   MAR   189.6     159.6     131.5      16.2      12.0       7.8
 2025.2503   APR   190.3     157.5     129.2      16.9      12.3       8.3
 2025.3337   MAY   190.4     155.8     126.8      17.6      12.5       8.8
 2025.4170   JUN   189.2     154.2     125.2      18.5      12.8       9.4
 2025.5003   JUL   187.3     152.2     123.5      19.2      13.1       9.8
 2025.5837   AUG   185.1     149.8     122.5      20.2      13.2       9.8
 2025.6670   SEP   182.1     147.1     121.4      20.8      13.5      10.2
 2025.7503   OCT   179.0     144.6     120.1      21.3      13.8      10.5
 2025.8337   NOV   177.5     142.6     118.9      21.4      13.9      10.6
 2025.9170   DEC   176.5     140.7     117.7      20.8      14.0      10.7
 2026.0003   JAN   174.7     138.5     115.7      21.1      14.1      10.6
 2026.0837   FEB   171.6     136.3     112.2      21.2      14.1      10.3
 2026.1670   MAR   167.9     134.7     110.4      21.2      14.2      10.4
 2026.2503   APR   164.3     133.3     109.4      21.6      14.5      10.7
 2026.3337   MAY   162.3     131.6     107.9      22.0      14.8      11.4
 2026.4170   JUN   160.6     129.7     106.6      22.1      14.9      11.1
 2026.5003   JUL   157.0     127.3     105.0      21.5      14.9      11.1
 2026.5837   AUG   151.2     124.9     102.8      20.6      15.0      11.5
 2026.6670   SEP   146.8     122.8     100.6      20.4      15.0      11.9
 2026.7503   OCT   144.5     120.6      98.6      21.0      14.9      12.4
 2026.8337   NOV   143.4     118.4      96.9      21.2      15.1      12.1
 2026.9170   DEC   141.8     116.5      95.2      20.8      15.3      11.6
 2027.0003   JAN   139.1     114.7      94.4      21.2      15.5      11.5
 2027.0837   FEB   136.2     112.6      93.0      21.0      15.5      11.3
 2027.1670   MAR   133.2     110.6      91.4      21.0      15.2      10.9
 2027.2503   APR   132.1     108.8      89.2      21.2      15.0      10.6
 2027.3337   MAY   131.5     106.9      86.4      21.4      14.7      10.2
 2027.4170   JUN   130.4     104.8      84.4      22.0      14.5       9.5
 2027.5003   JUL   129.5     103.0      82.8      22.6      14.2       8.6
 2027.5837   AUG   128.1     101.6      81.3      23.0      13.9       8.3
 2027.6670   SEP   127.2     100.3      80.3      23.3      13.7       8.1
 2027.7503   OCT   126.1      99.2      79.8      23.5      13.6       8.0
 2027.8337   NOV   124.2      98.3      79.7      23.5      13.5       8.2
 2027.9170   DEC   122.2      97.3      79.2      23.0      13.5       8.5
 2028.0003   JAN   120.6      96.0      78.3      22.3      13.4       9.0
 2028.0837   FEB   119.7      94.6      77.4      21.7      13.4       9.1
 2028.1670   MAR   118.3      93.4      76.6      21.5      13.6       8.6
 2028.2503   APR   115.6      92.0      76.1      21.3      13.7       7.9
 2028.3337   MAY   113.2      90.5      75.7      21.1      13.9       7.3
 2028.4170   JUN   110.6      89.4      75.6      20.7      14.0       7.2
 2028.5003   JUL   108.1      88.5      75.3      20.1      14.0       7.5
 2028.5837   AUG   106.3      87.4      74.8      19.8      13.9       8.0
 2028.6670   SEP   104.7      86.2      74.6      20.0      13.9       8.3
 2028.7503   OCT   102.5      84.9      74.3      20.1      13.6       8.3
 2028.8337   NOV   100.2      83.8      73.5      19.8      13.5       8.3
 2028.9170   DEC    98.8      83.0      73.5      19.4      13.4       8.3
 2029.0003   JAN    97.6      82.2      73.9      18.9      13.3       8.3
 2029.0837   FEB    95.9      81.4      73.6      18.2      13.2       8.2
 2029.1670   MAR    94.0      80.7      73.4      17.2      12.9       8.1
 2029.2503   APR    92.2      80.0      73.1      17.1      12.5       7.8
 2029.3337   MAY    91.2      79.3      72.8      17.2      12.2       7.5
 2029.4170   JUN    90.1      78.6      72.7      17.3      12.1       7.4
 2029.5003   JUL    89.1      78.0      72.6      17.3      12.1       7.0
 2029.5837   AUG    88.2      77.4      72.4      17.4      12.0       6.7
 2029.6670   SEP    86.7      76.9      72.2      16.9      11.9       6.9
 2029.7503   OCT    85.3      76.4      71.9      16.9      11.8       7.0
 2029.8337   NOV    83.3      75.8      71.7      16.6      11.6       7.0
 2029.9170   DEC    81.9      75.0      71.2      16.4      11.4       6.8
 2030.0003   JAN    80.5      74.3      70.7      15.5      11.1       6.6
 2030.0837   FEB    79.5      73.6      70.3      14.3      10.8       6.4
 2030.1670   MAR    78.9      73.0      69.9      13.8      10.6       6.3
 2030.2503   APR    78.5      72.6      69.5      13.9      10.3       6.3
 2030.3337   MAY    78.3      72.1      69.2      13.6      10.0       6.3
 2030.4170   JUN    78.0      71.8      68.9      13.2       9.7       6.1
 2030.5003   JUL    77.1      71.4      68.8      12.9       9.3       6.0
 2030.5837   AUG    75.9      71.1      68.6      12.6       9.1       6.0
 2030.6670   SEP    74.9      70.8      68.3      11.9       8.9       5.6
 2030.7503   OCT    74.5      70.6      68.2      11.4       8.6       5.1
 2030.8337   NOV    74.0      70.4      68.3      11.2       8.4       4.8
 2030.9170   DEC    74.0      70.4      68.2      11.2       8.4       4.8
 2031.0003   JAN    74.0      70.4      68.0      11.4       8.5       4.5
 2031.0837   FEB    74.6      70.7      68.0      11.7       8.7       4.5
 2031.1670   MAR    75.4      71.1      68.0      11.8       8.8       4.4
 2031.2503   APR    76.1      71.4      68.0      12.0       8.9       4.1
 2031.3337   MAY    77.1      71.7      68.1      12.1       9.0       3.9
 2031.4170   JUN    78.7      72.3      68.1      12.2       9.0       3.8
 2031.5003   JUL    80.0      72.9      68.1      12.3       9.1       3.7
 2031.5837   AUG    81.3      73.6      68.2      12.6       9.3       3.5
 2031.6670   SEP    83.5      74.4      68.2      12.9       9.6       3.5
 2031.7503   OCT    86.3      75.3      68.2      13.3      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
