  TABLE 3 ESTIMATES OF 13-MONTH SMOOTH SOLAR ACTIVITY FOR
               BALANCE OF CYCLE 24 AND CYCLE 25 

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

 2011.6670   SEP   124.0     119.9     117.4       8.5       7.8       7.3
 2011.7503   OCT   131.2     122.0     115.0       9.0       8.1       7.1
 2011.8337   NOV   139.8     124.1     111.4       9.5       8.3       6.8
 2011.9170   DEC   148.1     126.2     106.5       9.9       8.4       6.3
 2012.0003   JAN   154.4     128.0     101.9      10.0       8.6       5.6
 2012.0837   FEB   159.5     129.7      99.3      10.8       8.8       5.1
 2012.1670   MAR   164.8     131.4      98.4      12.0       9.0       5.3
 2012.2503   APR   169.9     133.2      99.6      12.8       9.2       5.5
 2012.3337   MAY   174.0     134.7     100.1      13.0       9.1       5.2
 2012.4170   JUN   177.0     135.8      98.9      13.6       9.4       5.2
 2012.5003   JUL   179.4     136.9      97.1      13.9      10.0       5.7
 2012.5837   AUG   180.2     137.5      94.9      14.3      10.6       6.5
 2012.6670   SEP   179.3     137.9      94.3      14.5      10.9       7.1
 2012.7503   OCT   175.9     138.4      97.2      14.4      10.9       7.5
 2012.8337   NOV   174.8     139.0      98.7      14.7      11.1       7.8
 2012.9170   DEC   178.7     139.4     100.1      14.6      11.1       7.9
 2013.0003   JAN   179.3     138.9     100.1      14.2      10.8       7.8
 2013.0837   FEB   175.8     137.8      99.1      14.4      10.9       8.0
 2013.1670   MAR   171.8     137.3      98.3      14.1      10.4       7.4
 2013.2503   APR   171.3     137.3      96.5      13.3       9.6       6.5
 2013.3337   MAY   172.8     137.7      95.3      12.8       9.4       6.4
 2013.4170   JUN   173.7     138.2      94.1      12.6       9.2       6.1
 2013.5003   JUL   174.0     138.5      92.0      13.3       9.0       6.3
 2013.5837   AUG   173.3     138.3      88.2      13.9       9.2       6.3
 2013.6670   SEP   172.1     137.8      85.1      14.8       9.3       6.2
 2013.7503   OCT   169.2     137.4      81.7      15.0       9.2       5.8
 2013.8337   NOV   166.1     137.2      80.1      14.7       9.5       6.1
 2013.9170   DEC   168.6     137.2      78.7      15.0       9.7       6.3
 2014.0003   JAN   168.0     136.4      77.0      15.0      10.2       6.6
 2014.0837   FEB   166.2     135.2      76.1      15.2      10.5       6.9
 2014.1670   MAR   166.8     133.8      74.6      15.3      10.8       7.0
 2014.2503   APR   165.5     132.3      73.5      15.7      11.2       7.3
 2014.3337   MAY   165.3     130.8      72.4      16.0      11.6       7.9
 2014.4170   JUN   166.4     129.7      72.3      16.9      12.3       8.4
 2014.5003   JUL   168.3     128.6      72.7      17.4      13.0       8.9
 2014.5837   AUG   169.5     127.2      73.8      17.0      12.8       8.8
 2014.6670   SEP   168.3     125.8      75.2      17.4      12.8       8.5
 2014.7503   OCT   166.8     124.7      76.4      17.7      12.9       8.5
 2014.8337   NOV   167.0     123.8      77.4      17.4      12.8       8.2
 2014.9170   DEC   166.5     122.9      78.8      17.8      12.9       7.9
 2015.0003   JAN   164.1     121.5      79.9      18.5      13.1       7.9
 2015.0837   FEB   161.3     119.9      80.1      18.9      13.5       7.8
 2015.1670   MAR   158.7     118.9      80.9      19.5      14.2       8.4
 2015.2503   APR   156.3     118.2      82.1      20.4      14.9       9.1
 2015.3337   MAY   154.9     117.3      82.2      21.2      15.6      10.2
 2015.4170   JUN   153.6     116.1      82.0      21.5      16.0      10.8
 2015.5003   JUL   150.7     114.7      82.2      20.9      16.1      10.9
 2015.5837   AUG   145.5     113.2      82.3      20.4      16.2      11.2
 2015.6670   SEP   140.9     111.7      81.6      20.3      16.3      11.5
 2015.7503   OCT   138.8     110.0      80.6      21.0      16.2      11.9
 2015.8337   NOV   138.1     108.3      79.8      21.4      16.6      13.1
 2015.9170   DEC   136.7     106.8      79.7      22.2      17.0      13.1
 2016.0003   JAN   134.3     105.4      79.5      22.7      17.0      12.9
 2016.0837   FEB   131.7     104.0      79.0      22.1      16.6      12.8
 2016.1670   MAR   129.1     102.7      78.5      21.7      16.1      12.0
 2016.2503   APR   126.7     101.6      77.3      21.6      15.5      11.3
 2016.3337   MAY   124.2     100.3      75.3      21.6      14.9      10.6
 2016.4170   JUN   123.5      98.9      74.2      21.9      14.5       9.5
 2016.5003   JUL   122.7      97.7      73.6      22.0      13.9       8.0
 2016.5837   AUG   121.8      96.6      72.7      21.9      13.2       7.3
 2016.6670   SEP   121.4      95.6      72.0      22.0      13.0       6.9
 2016.7503   OCT   120.4      94.6      71.6      22.0      12.9       6.6
 2016.8337   NOV   118.3      93.7      71.5      21.8      12.8       6.6
 2016.9170   DEC   116.1      92.7      71.0      21.4      12.7       6.9
 2017.0003   JAN   114.6      91.6      70.5      20.8      12.8       7.5
 2017.0837   FEB   113.9      90.5      70.2      20.5      13.1       8.3
 2017.1670   MAR   112.9      89.7      70.3      20.7      13.7       9.0
 2017.2503   APR   110.5      88.9      70.6      20.6      14.0       9.3
 2017.3337   MAY   107.1      87.7      70.7      20.5      14.3       9.7
 2017.4170   JUN   104.2      86.7      70.9      20.3      14.5      10.2
 2017.5003   JUL   101.7      85.9      70.8      20.0      14.6      10.6
 2017.5837   AUG   100.3      85.1      70.8      19.6      14.6      10.9
 2017.6670   SEP    99.1      84.3      71.0      19.9      14.6      10.9
 2017.7503   OCT    97.4      83.2      70.6      20.1      14.5      10.7
 2017.8337   NOV    95.4      82.2      70.1      20.0      14.5      10.3
 2017.9170   DEC    94.3      81.4      69.9      19.8      14.6      10.0
 2018.0003   JAN    93.8      80.7      69.8      19.5      14.9       9.9
 2018.0837   FEB    92.9      80.1      69.7      19.1      15.3       9.7
 2018.1670   MAR    91.6      79.4      69.5      19.3      15.5       9.2
 2018.2503   APR    90.2      78.7      69.3      19.2      15.4       8.9
 2018.3337   MAY    88.9      78.0      69.1      19.2      15.4       9.0
 2018.4170   JUN    87.6      77.3      68.9      19.0      15.4       9.4
 2018.5003   JUL    86.3      76.6      68.8      18.9      15.7      10.0
 2018.5837   AUG    85.1      76.0      68.6      18.2      15.1       9.8
 2018.6670   SEP    83.8      75.4      68.4      17.5      14.5       9.5
 2018.7503   OCT    82.6      74.7      68.3      16.9      13.9       9.2
 2018.8337   NOV    81.5      74.2      68.1      16.2      13.3       9.0
 2018.9170   DEC    80.4      73.6      68.0      15.6      12.8       8.7
 2019.0003   JAN    79.4      73.0      67.8      14.9      12.3       8.5
 2019.0837   FEB    78.4      72.5      67.7      14.3      11.8       8.2
 2019.1670   MAR    77.5      72.1      67.6      13.8      11.3       8.0
 2019.2503   APR    76.7      71.6      67.5      13.3      10.8       7.8
 2019.3337   MAY    75.9      71.2      67.4      12.8      10.4       7.6
 2019.4170   JUN    75.2      70.9      67.3      12.4      10.1       7.5
 2019.5003   JUL    74.6      70.6      67.2      12.0       9.7       7.3
 2019.5837   AUG    74.1      70.3      67.1      11.7       9.5       7.2
 2019.6670   SEP    73.7      70.1      67.1      11.4       9.2       7.1
 2019.7503   OCT    73.5      70.0      67.0      11.2       9.1       7.0
 2019.8337   NOV    73.3      69.9      67.0      11.1       9.0       7.0
 2019.9170   DEC    73.2      69.9      67.0      11.1       9.0       6.9
 2020.0003   JAN    73.3      70.0      67.0      11.3       9.0       6.9
 2020.0837   FEB    74.0      70.3      67.1      11.6       9.2       7.1
 2020.1670   MAR    74.8      70.7      67.2      11.7       9.3       7.4
 2020.2503   APR    75.6      71.0      67.2      11.9       9.4       7.5
 2020.3337   MAY    76.7      71.5      67.4      12.0       9.5       7.5
 2020.4170   JUN    78.2      72.0      67.5      12.1       9.6       7.3
 2020.5003   JUL    79.6      72.6      67.6      12.2       9.7       7.2
 2020.5837   AUG    81.0      73.3      67.8      12.5       9.9       7.1
 2020.6670   SEP    83.3      74.1      67.9      12.8      10.1       7.0
 2020.7503   OCT    86.3      75.1      68.0      13.2      10.5       7.2
 2020.8337   NOV    91.0      76.3      68.3      13.7      10.8       7.6
 2020.9170   DEC    95.4      77.7      68.4      14.5      11.1       7.9
 2021.0003   JAN    98.8      79.2      68.4      15.7      11.4       7.7
 2021.0837   FEB   103.9      80.9      68.4      16.1      11.6       7.7
 2021.1670   MAR   109.8      82.9      68.4      16.3      11.8       7.6
 2021.2503   APR   115.6      85.1      68.3      16.8      12.0       7.6
 2021.3337   MAY   122.9      87.3      68.6      18.0      12.3       7.6
 2021.4170   JUN   131.3      89.9      68.7      18.9      12.6       7.7
 2021.5003   JUL   137.8      92.6      68.9      19.1      12.7       7.7
 2021.5837   AUG   142.5      95.4      69.2      19.2      12.9       7.8
 2021.6670   SEP   146.9      98.2      69.2      19.0      13.1       7.7
 2021.7503   OCT   151.3     101.0      69.5      18.6      13.1       7.7
 2021.8337   NOV   156.2     103.9      69.9      18.5      13.2       7.8
 2021.9170   DEC   161.5     107.0      70.6      18.9      13.4       8.0
 2022.0003   JAN   166.8     110.1      70.9      18.8      13.5       8.2
 2022.0837   FEB   171.3     113.2      71.3      17.8      13.5       8.6
 2022.1670   MAR   177.2     116.5      71.5      17.9      13.7       8.7
 2022.2503   APR   184.7     119.7      72.1      18.5      13.9       8.7
 2022.3337   MAY   189.7     122.9      72.9      19.1      14.2       9.0
 2022.4170   JUN   192.2     125.7      73.3      19.6      14.6       9.4
 2022.5003   JUL   194.8     128.2      74.1      20.3      14.9       9.6
 2022.5837   AUG   197.9     130.5      74.7      20.3      15.1       9.6
 2022.6670   SEP   202.4     132.6      75.1      20.3      15.1       9.8
 2022.7503   OCT   208.5     135.1      75.6      20.5      15.2      10.0
 2022.8337   NOV   212.6     137.7      75.9      20.8      15.4      10.5
 2022.9170   DEC   215.4     140.3      76.1      21.2      15.4      11.1
 2023.0003   JAN   219.9     142.4      76.1      21.3      15.3      11.6
 2023.0837   FEB   224.3     144.3      76.0      21.4      15.1      11.3
 2023.1670   MAR   226.4     146.0      76.1      21.6      15.0      11.2
 2023.2503   APR   227.3     147.7      76.6      22.0      15.0      10.7
 2023.3337   MAY   229.2     149.0      76.9      22.8      14.9      10.2
 2023.4170   JUN   231.4     149.9      77.6      22.5      14.7       9.9
 2023.5003   JUL   234.2     150.8      78.9      21.3      14.5      10.1
 2023.5837   AUG   237.3     151.2      79.7      20.6      14.3      10.1
 2023.6670   SEP   238.6     151.4      80.6      20.1      14.2      10.3
 2023.7503   OCT   236.8     151.7      82.2      19.6      14.1      10.6
 2023.8337   NOV   234.8     151.9      83.8      19.5      14.0      10.6
 2023.9170   DEC   235.8     152.0      85.6      19.3      14.0      10.5
 2024.0003   JAN   236.3     151.2      86.4      19.1      14.2      10.5
 2024.0837   FEB   234.1     149.7      87.8      18.9      14.6      10.5
 2024.1670   MAR   230.9     148.7      89.5      18.9      14.7      10.3
 2024.2503   APR   227.3     148.4      90.7      19.5      14.6       9.8
 2024.3337   MAY   225.6     148.5      93.0      20.4      14.7      10.2
 2024.4170   JUN   226.0     148.9      94.2      22.0      15.0      10.7
 2024.5003   JUL   226.2     149.0      95.5      23.4      15.3      10.7
 2024.5837   AUG   225.0     148.7      95.8      24.0      15.4      10.9
 2024.6670   SEP   223.5     148.1      95.4      25.1      15.7      11.1
 2024.7503   OCT   223.0     147.5      95.4      25.6      15.9      11.3
 2024.8337   NOV   223.0     147.3      96.9      24.9      15.9      11.5
 2024.9170   DEC   222.6     147.2      97.7      24.8      15.9      11.7
 2025.0003   JAN   221.7     146.4      97.2      23.9      15.8      11.9
 2025.0837   FEB   219.4     145.1      96.4      22.1      15.8      11.8
 2025.1670   MAR   216.2     143.5      96.3      22.4      15.9      12.0
 2025.2503   APR   213.5     141.8      96.8      23.1      16.0      11.8
 2025.3337   MAY   210.9     140.1      96.3      23.1      16.0      11.1
 2025.4170   JUN   207.5     138.8      95.5      22.6      16.0      10.8
 2025.5003   JUL   206.4     137.4      96.1      22.0      15.8      10.8
 2025.5837   AUG   204.4     135.6      97.1      21.9      15.8      10.8
 2025.6670   SEP   201.0     133.7      96.2      22.7      16.1      10.8
 2025.7503   OCT   197.5     132.2      94.5      23.7      16.5      10.8
 2025.8337   NOV   195.1     130.9      93.8      23.9      16.7      10.8
 2025.9170   DEC   193.0     129.5      93.6      23.9      17.0      10.7
 2026.0003   JAN   189.1     127.8      91.7      23.9      17.1      10.6
 2026.0837   FEB   184.5     125.9      88.3      23.5      17.2      10.3
 2026.1670   MAR   180.1     124.6      87.9      22.5      17.2      10.5
 2026.2503   APR   176.3     123.5      88.7      22.7      17.2      10.7
 2026.3337   MAY   174.0     122.3      87.3      23.0      17.4      11.4
 2026.4170   JUN   172.1     121.0      86.3      23.1      17.6      11.9
 2026.5003   JUL   167.8     119.3      85.7      22.5      17.8      12.0
 2026.5837   AUG   161.4     117.4      84.8      21.7      17.6      12.1
 2026.6670   SEP   155.5     115.6      83.6      21.2      17.4      12.3
 2026.7503   OCT   151.9     113.7      82.5      21.7      17.0      12.5
 2026.8337   NOV   149.6     111.7      82.1      21.7      16.9      13.3
 2026.9170   DEC   147.1     110.0      82.1      22.1      16.9      13.1
 2027.0003   JAN   144.1     108.6      82.0      22.6      17.0      12.8
 2027.0837   FEB   141.1     107.0      80.9      22.3      16.8      13.1
 2027.1670   MAR   137.5     105.5      80.5      22.4      16.5      12.7
 2027.2503   APR   133.8     104.0      80.6      22.7      16.2      12.5
 2027.3337   MAY   129.6     102.5      80.0      22.9      15.8      12.1
 2027.4170   JUN   123.6     100.9      79.1      23.5      15.6      11.2
 2027.5003   JUL   119.4      99.4      77.7      24.1      15.4      10.5
 2027.5837   AUG   118.6      98.2      75.6      24.8      15.3      10.7
 2027.6670   SEP   118.7      97.1      74.5      25.3      15.3      10.8
 2027.7503   OCT   119.2      96.1      74.0      25.6      15.3      10.6
 2027.8337   NOV   119.6      95.2      73.6      25.4      15.3      10.8
 2027.9170   DEC   118.8      94.2      73.4      24.9      15.2      11.0
 2028.0003   JAN   117.4      92.9      73.0      24.0      15.0      11.1
 2028.0837   FEB   115.8      91.7      72.7      23.0      14.9      11.3
 2028.1670   MAR   113.7      90.7      71.9      22.5      15.0      11.2
 2028.2503   APR   110.2      89.6      71.4      22.1      15.1      11.1
 2028.3337   MAY   105.8      88.4      71.0      21.8      15.2      11.2
 2028.4170   JUN   103.2      87.3      70.7      21.4      15.3      11.4
 2028.5003   JUL   101.6      86.5      70.4      20.7      15.2      11.5
 2028.5837   AUG   100.2      85.6      70.5      19.9      14.9      11.3
 2028.6670   SEP    98.1      84.7      70.3      20.0      14.7      11.1
 2028.7503   OCT    96.6      83.5      69.8      20.1      14.6      10.8
 2028.8337   NOV    94.6      82.4      69.6      19.9      14.3      10.1
 2028.9170   DEC    93.5      81.7      69.5      19.5      14.2       9.6
 2029.0003   JAN    93.2      81.0      69.4      19.0      14.1       9.1
 2029.0837   FEB    92.3      80.3      69.3      18.3      14.1       8.6
 2029.1670   MAR    91.3      79.6      69.1      17.3      14.0       8.0
 2029.2503   APR    90.5      78.9      68.8      17.4      13.8       7.5
 2029.3337   MAY    89.7      78.2      68.5      17.5      13.7       7.6
 2029.4170   JUN    88.7      77.5      68.3      17.6      13.7       7.8
 2029.5003   JUL    87.7      77.0      68.4      17.5      13.6       8.3
 2029.5837   AUG    86.9      76.5      68.4      17.7      13.5       8.6
 2029.6670   SEP    85.5      75.9      68.5      18.1      13.4       8.5
 2029.7503   OCT    84.1      75.4      68.4      17.9      13.2       8.6
 2029.8337   NOV    82.2      74.9      68.4      17.6      12.9       8.5
 2029.9170   DEC    79.9      74.2      68.3      17.3      12.6       8.5
 2030.0003   JAN    78.4      73.5      68.0      16.3      12.2       8.4
 2030.0837   FEB    77.5      72.8      67.8      14.8      11.8       8.4
 2030.1670   MAR    77.0      72.3      67.6      13.8      11.4       8.3
 2030.2503   APR    76.9      72.0      67.6      13.9      11.0       8.2
 2030.3337   MAY    76.6      71.6      67.5      13.6      10.6       8.2
 2030.4170   JUN    76.5      71.2      67.2      13.2      10.3       7.9
 2030.5003   JUL    76.1      70.9      67.1      12.9       9.9       7.4
 2030.5837   AUG    75.1      70.6      67.1      12.6       9.7       7.1
 2030.6670   SEP    74.2      70.3      67.0      11.9       9.5       7.3
 2030.7503   OCT    74.0      70.1      67.0      11.4       9.4       7.1
