  TABLE 3 ESTIMATES OF 13-MONTH SMOOTH SOLAR ACTIVITY FOR
               BALANCE OF CYCLE 23 CYCLE 24 AND BEGINNING OF 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% 

 2007.5833   AUG    73.4      72.3      71.3       8.5       7.5       7.0
 2007.6667   SEP    74.0      72.0      70.3       9.9       7.7       6.6
 2007.7500   OCT    74.5      71.8      69.5      11.0       7.9       6.3
 2007.8333   NOV    75.1      71.6      68.7      11.7       8.1       6.2
 2007.9167   DEC    75.6      71.5      68.1      12.2       8.3       6.3
 2008.0000   JAN    75.9      71.4      68.1      12.9       8.6       6.7
 2008.0833   FEB    76.2      71.4      68.4      13.3       8.7       7.0
 2008.1667   MAR    76.8      71.4      68.5      13.7       8.8       6.6
 2008.2500   APR    77.8      71.6      68.2      14.3       8.8       6.5
 2008.3333   MAY    79.5      72.0      68.1      14.8       9.0       6.7
 2008.4167   JUN    81.5      72.3      67.9      15.0       9.1       6.9
 2008.5000   JUL    83.2      72.7      68.0      14.9       9.2       7.2
 2008.5833   AUG    85.4      73.2      68.2      14.7       9.3       7.5
 2008.6667   SEP    88.2      74.0      68.3      14.1       9.5       7.7
 2008.7500   OCT    91.0      74.9      68.4      14.2       9.7       7.7
 2008.8333   NOV    93.8      75.8      68.5      15.2       9.9       7.8
 2008.9167   DEC    96.7      76.9      68.8      15.6      10.1       7.8
 2009.0000   JAN   100.7      78.4      69.1      16.1      10.4       7.8
 2009.0833   FEB   105.5      80.0      69.3      16.4      10.7       7.7
 2009.1667   MAR   111.4      81.8      69.6      16.5      10.8       7.7
 2009.2500   APR   116.6      83.6      70.2      17.0      10.9       7.8
 2009.3333   MAY   120.6      85.5      71.2      17.2      11.0       8.0
 2009.4167   JUN   123.9      87.6      72.0      17.4      11.3       8.3
 2009.5000   JUL   126.6      89.8      72.6      17.6      11.7       8.6
 2009.5833   AUG   130.2      92.0      73.1      18.0      12.1       9.1
 2009.6667   SEP   133.6      94.3      73.6      18.2      12.7       9.7
 2009.7500   OCT   136.4      96.7      74.1      17.7      13.1      10.4
 2009.8333   NOV   141.8      99.5      74.5      16.9      13.1      10.6
 2009.9167   DEC   148.0     102.3      75.1      16.5      13.1      10.2
 2010.0000   JAN   153.3     104.8      75.6      16.4      13.2      10.1
 2010.0833   FEB   156.8     107.3      75.8      17.0      13.4      10.0
 2010.1667   MAR   158.6     109.7      76.3      17.6      13.5       9.7
 2010.2500   APR   161.1     112.1      77.1      18.1      13.6       9.5
 2010.3333   MAY   164.0     114.8      78.3      18.5      13.7       9.4
 2010.4167   JUN   171.6     117.9      79.8      18.6      13.5       8.8
 2010.5000   JUL   176.5     120.9      81.2      18.6      13.2       8.0
 2010.5833   AUG   181.5     124.0      82.7      18.4      13.0       7.7
 2010.6667   SEP   186.3     127.0      84.1      18.7      13.2       7.9
 2010.7500   OCT   191.1     130.0      85.5      18.9      13.3       8.2
 2010.8333   NOV   195.9     132.9      86.8      19.2      13.4       8.4
 2010.9167   DEC   200.5     135.8      88.2      19.5      13.6       8.6
 2011.0000   JAN   204.9     138.5      89.5      19.7      13.7       8.9
 2011.0833   FEB   209.2     141.2      90.7      20.0      13.8       9.1
 2011.1667   MAR   213.4     143.8      91.9      20.2      14.0       9.3
 2011.2500   APR   217.3     146.2      93.1      20.5      14.1       9.5
 2011.3333   MAY   221.0     148.5      94.1      20.7      14.2       9.7
 2011.4167   JUN   224.5     150.6      95.1      20.9      14.3       9.9
 2011.5000   JUL   227.7     152.6      96.1      21.1      14.4      10.1
 2011.5833   AUG   230.6     154.4      96.9      21.3      14.5      10.2
 2011.6667   SEP   233.2     156.0      97.7      21.4      14.5      10.4
 2011.7500   OCT   235.4     157.4      98.3      21.6      14.6      10.5
 2011.8333   NOV   237.3     158.6      98.9      21.7      14.7      10.6
 2011.9167   DEC   238.8     159.5      99.3      21.8      14.7      10.7
 2012.0000   JAN   239.9     160.2      99.6      21.8      14.7      10.7
 2012.0833   FEB   240.6     160.6      99.8      21.9      14.8      10.8
 2012.1667   MAR   240.8     160.8      99.9      21.9      14.8      10.8
 2012.2500   APR   237.9     159.6      98.5      20.6      14.9      11.5
 2012.3333   MAY   233.7     157.8      97.8      20.2      15.0      11.8
 2012.4167   JUN   229.9     156.0      96.7      19.7      15.1      11.7
 2012.5000   JUL   228.6     154.7      95.4      19.4      15.3      11.9
 2012.5833   AUG   228.6     153.6      93.8      19.2      15.6      12.1
 2012.6667   SEP   227.1     152.7      92.6      19.0      15.7      11.6
 2012.7500   OCT   225.2     151.7      91.8      19.0      15.7      10.9
 2012.8333   NOV   224.4     150.4      91.2      18.9      15.7      10.8
 2012.9167   DEC   223.6     148.9      90.3      19.0      15.7      10.8
 2013.0000   JAN   222.8     147.2      89.3      19.2      15.8      10.8
 2013.0833   FEB   221.6     145.3      88.6      19.8      15.9      10.8
 2013.1667   MAR   217.7     143.4      87.7      20.4      16.1      10.9
 2013.2500   APR   214.3     141.8      86.2      21.4      16.3      10.8
 2013.3333   MAY   211.4     140.6      85.4      21.9      16.5      10.7
 2013.4167   JUN   207.1     139.5      84.9      21.6      16.6      10.6
 2013.5000   JUL   206.7     138.5      84.0      21.3      16.4      10.3
 2013.5833   AUG   206.0     137.4      82.7      21.8      16.5      10.3
 2013.6667   SEP   203.8     135.6      81.3      23.1      16.7      10.4
 2013.7500   OCT   200.3     133.6      80.4      23.3      16.9      10.9
 2013.8333   NOV   196.2     131.5      79.8      22.7      17.0      11.7
 2013.9167   DEC   191.2     129.6      79.1      22.6      17.0      11.8
 2014.0000   JAN   185.0     127.8      78.4      22.7      16.9      11.9
 2014.0833   FEB   179.1     126.3      77.5      23.2      17.1      12.0
 2014.1667   MAR   178.4     125.2      76.5      23.9      17.3      12.1
 2014.2500   APR   177.7     123.7      75.5      23.9      17.2      12.5
 2014.3333   MAY   175.3     121.6      74.6      23.9      17.1      13.3
 2014.4167   JUN   171.4     119.5      73.6      23.3      17.0      13.7
 2014.5000   JUL   166.1     117.5      72.7      21.6      16.8      13.3
 2014.5833   AUG   161.9     115.9      72.3      21.8      16.6      12.8
 2014.6667   SEP   160.4     114.4      72.0      21.8      16.4      12.7
 2014.7500   OCT   159.3     112.9      71.6      21.5      16.4      12.5
 2014.8333   NOV   157.5     111.4      71.4      21.1      16.4      12.4
 2014.9167   DEC   154.7     109.9      71.5      20.5      16.4      12.2
 2015.0000   JAN   150.5     108.3      71.4      19.9      16.1      11.9
 2015.0833   FEB   144.9     106.7      71.2      20.1      16.0      11.9
 2015.1667   MAR   138.7     104.8      70.9      21.6      15.9      11.7
 2015.2500   APR   132.9     103.0      70.7      23.2      15.8      11.7
 2015.3333   MAY   128.3     101.4      70.5      24.0      15.8      11.5
 2015.4167   JUN   124.5      99.9      70.7      25.1      15.7      11.3
 2015.5000   JUL   121.4      98.7      71.1      25.8      15.7      11.3
 2015.5833   AUG   119.3      97.7      71.2      25.0      15.6      10.8
 2015.6667   SEP   119.4      96.7      71.4      25.0      15.6      10.3
 2015.7500   OCT   119.0      95.6      71.2      24.1      15.7      10.7
 2015.8333   NOV   117.9      94.3      70.7      22.2      15.7      10.8
 2015.9167   DEC   117.2      93.0      70.3      21.4      15.6      10.8
 2016.0000   JAN   116.2      91.9      69.9      21.7      15.8      11.0
 2016.0833   FEB   116.4      91.1      69.6      22.4      16.0      11.2
 2016.1667   MAR   116.7      90.2      69.2      22.6      16.0      11.2
 2016.2500   APR   116.8      89.2      69.0      22.5      16.1      11.0
 2016.3333   MAY   116.6      88.2      68.7      22.7      16.3      11.0
 2016.4167   JUN   115.9      87.1      68.2      22.9      16.6      11.3
 2016.5000   JUL   114.8      86.1      68.0      23.4      16.8      11.2
 2016.5833   AUG   113.1      85.1      67.8      24.1      16.9      11.2
 2016.6667   SEP   109.9      84.2      67.7      24.8      17.0      11.8
 2016.7500   OCT   104.9      83.2      67.6      25.4      16.9      12.2
 2016.8333   NOV    99.4      82.3      67.6      25.6      16.7      12.1
 2016.9167   DEC    98.8      81.3      67.5      25.4      16.4      12.0
 2017.0000   JAN    99.6      80.6      67.3      24.7      16.0      12.2
 2017.0833   FEB   100.2      80.0      67.2      23.6      15.6      12.3
 2017.1667   MAR    98.7      79.4      67.2      22.8      15.2      12.2
 2017.2500   APR    95.8      78.8      67.2      22.4      14.9      11.8
 2017.3333   MAY    93.0      78.2      67.2      21.9      14.6      11.2
 2017.4167   JUN    91.3      77.8      67.1      21.6      14.2      10.7
 2017.5000   JUL    91.5      77.2      67.1      20.9      13.8      10.0
 2017.5833   AUG    91.4      76.6      67.0      20.0      13.4       9.4
 2017.6667   SEP    90.9      76.0      67.0      18.7      13.1       9.0
 2017.7500   OCT    90.4      75.6      67.0      18.2      12.8       8.5
 2017.8333   NOV    89.7      75.1      67.0      18.7      12.6       8.0
 2017.9167   DEC    88.8      74.7      67.1      18.7      12.5       7.8
 2018.0000   JAN    88.1      74.4      67.3      18.4      12.4       7.4
 2018.0833   FEB    87.2      74.0      67.4      18.4      12.2       7.0
 2018.1667   MAR    85.9      73.7      67.5      18.8      12.1       6.6
 2018.2500   APR    84.4      73.2      67.6      18.9      12.0       6.5
 2018.3333   MAY    82.3      72.7      67.7      18.8      12.0       6.4
 2018.4167   JUN    80.0      72.3      67.7      18.4      11.9       6.6
 2018.5000   JUL    77.7      71.9      68.0      17.5      11.8       6.9
 2018.5833   AUG    76.9      71.7      68.0      16.5      11.7       7.2
 2018.6667   SEP    76.5      71.5      68.0      16.3      11.6       7.4
 2018.7500   OCT    75.8      71.4      68.0      16.6      11.6       7.5
 2018.8333   NOV    76.0      71.3      67.9      16.9      11.6       7.5
 2018.9167   DEC    76.0      71.2      67.9      17.2      11.6       7.7
 2019.0000   JAN    76.3      71.2      67.7      17.3      11.6       7.7
 2019.0833   FEB    76.8      71.3      67.6      17.7      11.5       7.6
 2019.1667   MAR    77.8      71.5      67.7      18.0      11.4       7.6
 2019.2500   APR    79.5      71.9      67.6      18.2      11.4       7.6
 2019.3333   MAY    81.5      72.3      67.6      18.1      11.3       7.6
 2019.4167   JUN    83.2      72.6      67.7      17.8      11.2       7.5
 2019.5000   JUL    85.4      73.2      67.9      17.3      11.1       7.5
 2019.5833   AUG    88.2      74.0      68.1      16.3      11.0       7.5
 2019.6667   SEP    91.0      74.9      68.5      15.5      10.9       7.5
 2019.7500   OCT    93.8      75.8      68.6      16.1      10.8       7.7
 2019.8333   NOV    96.7      76.9      68.8      16.3      10.8       7.7
 2019.9167   DEC   100.7      78.4      69.1      16.6      10.9       7.8
 2020.0000   JAN   105.5      80.0      69.3      16.7      11.0       7.7
 2020.0833   FEB   111.4      81.8      69.6      16.8      11.1       7.7
 2020.1667   MAR   116.6      83.6      70.2      17.1      11.1       7.8
 2020.2500   APR   120.6      85.6      71.1      17.3      11.1       8.0
 2020.3333   MAY   123.8      87.7      71.8      17.3      11.2       8.3
 2020.4167   JUN   126.5      89.8      72.5      17.4      11.5       8.6
 2020.5000   JUL   130.1      92.1      73.7      17.6      11.7       9.0
 2020.5833   AUG   133.5      94.4      74.2      17.5      12.0       8.8
 2020.6667   SEP   136.2      96.7      74.5      16.9      12.2       8.7
 2020.7500   OCT   141.6      99.5      74.8      16.2      12.4       8.9
 2020.8333   NOV   147.9     102.3      75.1      16.0      12.5       9.0
 2020.9167   DEC   153.4     104.8      75.3      16.0      12.7       9.0
 2021.0000   JAN   157.1     107.3      75.2      16.1      12.9       8.8
 2021.0833   FEB   159.2     109.6      75.2      16.7      13.0       8.4
 2021.1667   MAR   162.0     111.9      75.3      17.1      13.0       8.2
 2021.2500   APR   165.3     114.5      75.7      17.5      13.1       8.2
 2021.3333   MAY   172.5     117.4      76.1      18.2      13.2       8.1
 2021.4167   JUN   181.4     120.5      76.6      18.5      13.2       7.9
 2021.5000   JUL   188.0     123.1      77.5      18.5      13.1       7.8
 2021.5833   AUG   191.8     125.3      78.3      18.7      13.1       7.9
 2021.6667   SEP   194.8     127.4      78.6      19.0      13.2       8.1
 2021.7500   OCT   197.7     129.3      79.6      18.6      13.3       8.6
 2021.8333   NOV   201.4     131.0      80.8      17.8      13.3       9.2
 2021.9167   DEC   206.7     132.7      82.2      18.1      13.4       9.6
 2022.0000   JAN   211.5     134.8      84.1      18.9      13.5      10.1
 2022.0833   FEB   214.4     137.2      85.4      19.1      13.6      10.1
 2022.1667   MAR   218.4     139.6      86.3      19.5      13.9      10.3
 2022.2500   APR   223.8     142.2      88.1      20.5      14.1      10.4
 2022.3333   MAY   227.1     144.8      90.0      20.2      14.1      10.6
 2022.4167   JUN   228.9     146.9      91.1      20.4      14.1      10.2
 2022.5000   JUL   230.4     148.9      93.3      20.7      14.1      10.2
 2022.5833   AUG   231.8     150.9      95.7      21.1      14.2       9.9
 2022.6667   SEP   234.4     152.8      97.5      21.4      14.2       9.8
 2022.7500   OCT   237.7     154.7      98.7      21.4      14.4      10.5
 2022.8333   NOV   239.4     156.3      98.8      21.6      14.5      10.9
 2022.9167   DEC   238.3     157.5      98.2      21.9      14.7      10.9
 2023.0000   JAN   237.2     158.9      97.8      22.4      14.9      11.0
 2023.0833   FEB   238.5     160.7      99.1      22.9      15.1      11.2
