  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% 

 2004.7500   OCT   103.7     101.4      98.3      14.4      13.7      13.0
 2004.8333   NOV   103.0      99.0      93.2      15.2      13.6      12.2
 2004.9167   DEC   102.6      97.0      90.3      15.6      13.5      11.4
 2005.0000   JAN   101.1      95.2      88.5      15.8      13.3      10.6
 2005.0833   FEB   101.8      93.7      85.7      16.0      13.2      10.0
 2005.1667   MAR   102.2      92.4      83.9      15.9      13.1       9.9
 2005.2500   APR   100.6      91.2      82.6      15.7      12.9      10.2
 2005.3333   MAY    97.7      89.8      81.5      15.4      12.7      10.0
 2005.4167   JUN    95.2      88.6      80.5      14.9      12.3       9.9
 2005.5000   JUL    95.3      87.6      79.9      14.6      12.0       9.0
 2005.5833   AUG    95.3      86.6      79.3      13.9      11.4       8.0
 2005.6667   SEP    95.0      85.5      79.1      14.4      11.0       7.2
 2005.7500   OCT    94.3      84.3      78.8      15.4      10.9       6.8
 2005.8333   NOV    93.5      83.2      78.3      16.4      10.7       6.6
 2005.9167   DEC    92.6      82.3      77.4      16.8      10.5       6.2
 2006.0000   JAN    91.6      81.5      76.1      16.7      10.2       5.8
 2006.0833   FEB    90.7      80.8      75.2      16.2       9.9       5.6
 2006.1667   MAR    89.7      80.1      74.6      16.1       9.6       5.2
 2006.2500   APR    88.2      79.4      73.9      16.5       9.5       5.2
 2006.3333   MAY    86.5      78.6      73.1      16.6       9.5       5.2
 2006.4167   JUN    84.2      77.6      72.0      16.6       9.5       5.4
 2006.5000   JUL    81.7      76.7      71.5      16.4       9.6       5.7
 2006.5833   AUG    80.2      75.9      71.3      15.6       9.6       6.0
 2006.6667   SEP    79.9      75.3      71.1      14.7       9.6       6.2
 2006.7500   OCT    79.7      74.6      70.5      14.1       9.7       6.4
 2006.8333   NOV    80.2      74.0      70.1      14.6       9.8       6.5
 2006.9167   DEC    80.8      73.6      70.0      15.0       9.9       6.6
 2007.0000   JAN    81.8      73.2      69.8      15.6      10.1       6.8
 2007.0833   FEB    83.3      72.8      69.5      15.9      10.3       7.3
 2007.1667   MAR    84.6      72.6      68.6      16.3      10.3       7.3
 2007.2500   APR    86.5      72.4      68.0      16.8      10.4       7.3
 2007.3333   MAY    88.9      72.3      67.2      17.1      10.4       7.3
 2007.4167   JUN    91.5      72.4      66.6      17.2      10.5       7.4
 2007.5000   JUL    94.8      72.6      66.3      16.9      10.4       7.3
 2007.5833   AUG    99.8      73.0      66.2      16.5      10.4       7.2
 2007.6667   SEP   104.9      73.6      65.9      15.5      10.3       7.3
 2007.7500   OCT   109.6      74.3      65.5      14.4      10.3       7.4
 2007.8333   NOV   113.9      75.0      65.3      14.9      10.1       7.5
 2007.9167   DEC   117.1      75.8      65.0      15.0      10.0       7.5
 2008.0000   JAN   120.3      76.8      65.0      15.5      10.2       7.6
 2008.0833   FEB   124.2      77.8      64.7      15.8      10.4       7.5
 2008.1667   MAR   128.3      78.8      64.0      16.0      10.5       7.6
 2008.2500   APR   132.7      80.0      64.1      16.3      10.6       7.6
 2008.3333   MAY   138.3      81.6      64.6      16.5      10.6       7.8
 2008.4167   JUN   144.4      83.7      65.1      16.6      10.8       8.2
 2008.5000   JUL   149.3      85.8      65.9      16.8      11.1       8.5
 2008.5833   AUG   153.2      88.2      67.0      17.1      11.4       8.8
 2008.6667   SEP   156.1      90.8      68.5      17.3      11.8       8.7
 2008.7500   OCT   158.4      93.4      70.1      16.9      12.2       8.7
 2008.8333   NOV   161.1      96.2      71.2      15.9      12.2       8.7
 2008.9167   DEC   164.9      99.1      72.5      15.2      12.0       8.5
 2009.0000   JAN   169.5     102.1      74.2      14.9      12.1       8.4
 2009.0833   FEB   173.9     105.2      75.9      14.6      12.1       8.1
 2009.1667   MAR   179.9     109.0      78.3      14.3      12.1       7.7
 2009.2500   APR   187.0     113.1      81.2      14.1      12.0       7.4
 2009.3333   MAY   192.8     117.5      85.2      14.5      12.1       7.4
 2009.4167   JUN   196.9     122.1      89.5      14.6      12.0       7.3
 2009.5000   JUL   199.6     126.6      93.7      15.1      12.2       7.5
 2009.5833   AUG   201.4     130.4      97.8      15.6      12.4       7.8
 2009.6667   SEP   204.5     132.8      98.0      16.1      12.6       8.0
 2009.7500   OCT   207.6     135.2      98.1      16.6      12.8       8.3
 2009.8333   NOV   210.7     137.5      98.3      17.1      13.0       8.5
 2009.9167   DEC   213.7     139.8      98.5      17.6      13.2       8.7
 2010.0000   JAN   216.6     142.1      98.6      18.1      13.4       9.0
 2010.0833   FEB   219.5     144.3      98.8      18.6      13.5       9.2
 2010.1667   MAR   222.2     146.4      98.9      19.0      13.7       9.4
 2010.2500   APR   224.8     148.4      99.0      19.4      13.8       9.6
 2010.3333   MAY   227.3     150.4      99.2      19.8      14.0       9.8
 2010.4167   JUN   229.7     152.2      99.3      20.2      14.1      10.0
 2010.5000   JUL   231.8     153.8      99.4      20.5      14.3      10.1
 2010.5833   AUG   233.8     155.3      99.5      20.8      14.4      10.3
 2010.6667   SEP   235.5     156.7      99.6      21.1      14.5      10.4
 2010.7500   OCT   237.1     157.9      99.7      21.3      14.6      10.5
 2010.8333   NOV   238.4     158.9      99.7      21.5      14.6      10.6
 2010.9167   DEC   239.4     159.7      99.8      21.7      14.7      10.7
 2011.0000   JAN   240.2     160.3      99.8      21.8      14.7      10.7
 2011.0833   FEB   240.7     160.6      99.9      21.9      14.8      10.8
 2011.1667   MAR   240.8     160.8      99.9      21.9      14.8      10.8
 2011.2500   APR   236.9     159.8      98.5      20.6      14.9      11.5
 2011.3333   MAY   231.7     157.8      97.8      20.2      15.0      11.8
 2011.4167   JUN   229.5     156.1      96.7      19.7      15.1      11.7
 2011.5000   JUL   230.3     154.9      95.4      19.4      15.3      11.9
 2011.5833   AUG   229.9     153.6      93.8      19.2      15.6      12.1
 2011.6667   SEP   227.4     152.2      92.6      19.0      15.7      11.6
 2011.7500   OCT   225.2     150.5      91.8      19.0      15.7      10.9
 2011.8333   NOV   224.6     149.0      91.2      18.9      15.7      10.8
 2011.9167   DEC   223.7     147.3      90.3      19.0      15.7      10.8
 2012.0000   JAN   222.3     145.5      89.3      19.2      15.8      10.8
 2012.0833   FEB   218.8     143.3      88.6      19.8      15.9      10.8
 2012.1667   MAR   214.8     141.5      87.7      20.4      16.1      10.9
 2012.2500   APR   211.5     140.1      86.2      21.4      16.3      10.8
 2012.3333   MAY   206.4     139.0      85.4      21.9      16.5      10.7
 2012.4167   JUN   201.5     137.8      84.9      21.6      16.6      10.6
 2012.5000   JUL   196.4     136.3      84.0      21.3      16.4      10.3
 2012.5833   AUG   191.5     135.1      82.7      21.8      16.5      10.3
 2012.6667   SEP   192.5     133.9      81.3      23.1      16.7      10.4
 2012.7500   OCT   195.5     132.6      80.4      23.3      16.9      10.9
 2012.8333   NOV   196.9     131.0      79.8      22.7      17.0      11.7
 2012.9167   DEC   197.5     129.4      79.1      22.6      17.0      11.8
 2013.0000   JAN   198.8     128.0      78.4      22.7      16.9      11.9
 2013.0833   FEB   201.3     126.8      77.5      23.2      17.1      12.0
 2013.1667   MAR   202.0     125.7      76.5      23.9      17.3      12.1
 2013.2500   APR   201.3     124.2      75.5      23.9      17.2      12.5
 2013.3333   MAY   201.3     122.2      74.6      23.9      17.1      13.3
 2013.4167   JUN   200.8     120.3      73.6      23.3      17.0      13.7
 2013.5000   JUL   200.5     118.7      72.7      21.6      16.8      13.3
 2013.5833   AUG   200.8     117.4      72.3      21.8      16.6      12.8
 2013.6667   SEP   200.1     116.1      72.0      21.8      16.4      12.7
 2013.7500   OCT   197.7     114.5      71.6      21.5      16.4      12.5
 2013.8333   NOV   193.9     112.8      71.4      21.1      16.4      12.4
 2013.9167   DEC   189.6     111.0      71.5      20.5      16.4      12.2
 2014.0000   JAN   183.5     109.0      71.4      19.9      16.1      11.9
 2014.0833   FEB   176.7     107.1      71.2      20.1      16.0      11.9
 2014.1667   MAR   169.9     105.4      70.9      21.6      15.9      11.7
 2014.2500   APR   163.7     104.0      70.7      23.2      15.8      11.7
 2014.3333   MAY   158.4     102.7      70.5      24.0      15.8      11.5
 2014.4167   JUN   154.5     101.3      70.7      25.1      15.7      11.3
 2014.5000   JUL   150.7     100.1      71.1      25.8      15.7      11.3
 2014.5833   AUG   144.6      98.8      71.2      25.0      15.6      10.8
 2014.6667   SEP   137.6      97.6      71.4      25.0      15.6      10.3
 2014.7500   OCT   132.6      96.5      71.2      24.1      15.7      10.7
 2014.8333   NOV   129.3      95.2      70.7      22.2      15.7      10.8
 2014.9167   DEC   127.0      94.0      70.3      21.4      15.6      10.8
 2015.0000   JAN   126.3      93.2      70.0      21.7      15.8      11.0
 2015.0833   FEB   125.2      92.5      69.6      22.4      16.0      11.2
 2015.1667   MAR   123.2      91.5      69.2      22.6      16.0      11.2
 2015.2500   APR   121.2      90.4      69.0      22.5      16.1      11.0
 2015.3333   MAY   119.0      89.3      68.7      22.7      16.3      11.0
 2015.4167   JUN   116.5      88.2      68.2      22.9      16.6      11.3
 2015.5000   JUL   114.4      87.0      68.0      23.4      16.8      11.2
 2015.5833   AUG   110.6      85.9      67.8      24.1      16.9      11.2
 2015.6667   SEP   108.0      84.8      67.7      24.8      17.0      11.8
 2015.7500   OCT   104.4      83.7      67.6      25.4      16.9      12.2
 2015.8333   NOV   101.3      82.8      67.6      25.6      16.7      12.1
 2015.9167   DEC    99.0      81.8      67.5      25.4      16.4      12.0
 2016.0000   JAN    99.7      80.9      67.3      24.7      16.0      12.2
 2016.0833   FEB   100.2      80.2      67.2      23.6      15.6      12.3
 2016.1667   MAR    98.7      79.6      67.2      22.8      15.2      12.2
 2016.2500   APR    95.8      78.9      67.2      22.4      14.9      11.8
 2016.3333   MAY    93.0      78.4      67.2      21.9      14.6      11.2
 2016.4167   JUN    91.3      77.9      67.1      21.6      14.2      10.7
 2016.5000   JUL    91.5      77.3      67.1      20.9      13.8      10.0
 2016.5833   AUG    91.4      76.8      67.0      20.0      13.4       9.4
 2016.6667   SEP    90.9      76.2      67.0      18.7      13.1       9.0
 2016.7500   OCT    90.4      75.7      67.0      18.2      12.8       8.5
 2016.8333   NOV    89.7      75.2      67.0      18.7      12.6       8.0
 2016.9167   DEC    88.8      74.9      67.1      18.7      12.5       7.8
 2017.0000   JAN    88.1      74.6      67.3      18.4      12.4       7.4
 2017.0833   FEB    87.2      74.2      67.4      18.4      12.2       7.0
 2017.1667   MAR    85.9      73.9      67.5      18.8      12.1       6.6
 2017.2500   APR    84.4      73.6      67.6      18.9      12.0       6.5
 2017.3333   MAY    82.3      73.1      67.7      18.8      12.0       6.4
 2017.4167   JUN    80.0      72.7      67.7      18.4      11.9       6.6
 2017.5000   JUL    77.7      72.3      68.0      17.5      11.8       6.9
 2017.5833   AUG    77.2      72.1      68.0      16.5      11.7       7.2
 2017.6667   SEP    76.5      71.9      68.0      16.3      11.6       7.4
 2017.7500   OCT    77.5      71.7      68.0      16.6      11.6       7.5
 2017.8333   NOV    78.4      71.6      67.9      16.9      11.6       7.5
 2017.9167   DEC    80.0      71.7      67.9      17.2      11.6       7.7
 2018.0000   JAN    82.0      71.8      67.7      17.3      11.6       7.7
 2018.0833   FEB    83.9      72.0      67.6      17.7      11.5       7.6
 2018.1667   MAR    86.3      72.3      67.7      18.0      11.4       7.6
 2018.2500   APR    89.2      72.6      67.6      18.2      11.4       7.6
 2018.3333   MAY    92.3      73.0      67.6      18.1      11.3       7.6
 2018.4167   JUN    95.7      73.4      67.7      17.8      11.2       7.5
 2018.5000   JUL   101.0      74.1      67.9      17.3      11.1       7.5
 2018.5833   AUG   106.6      75.0      68.1      16.3      11.0       7.5
 2018.6667   SEP   111.8      76.1      68.5      15.5      10.9       7.5
 2018.7500   OCT   116.5      77.2      68.6      16.1      10.8       7.7
 2018.8333   NOV   120.1      78.2      68.8      16.3      10.8       7.7
 2018.9167   DEC   123.6      79.5      69.1      16.6      10.9       7.8
 2019.0000   JAN   127.8      80.8      69.3      16.7      11.0       7.7
 2019.0833   FEB   132.4      82.2      69.6      16.8      11.1       7.7
 2019.1667   MAR   137.2      83.7      70.2      17.1      11.1       7.8
 2019.2500   APR   143.0      85.5      71.1      17.3      11.1       8.0
 2019.3333   MAY   149.1      87.6      71.8      17.3      11.2       8.3
 2019.4167   JUN   153.9      89.7      72.5      17.4      11.5       8.6
 2019.5000   JUL   157.5      91.8      73.7      17.6      11.7       9.0
 2019.5833   AUG   159.6      93.8      74.2      17.5      12.0       8.8
 2019.6667   SEP   161.3      95.8      74.5      16.9      12.2       8.7
 2019.7500   OCT   163.5      98.2      74.8      16.2      12.4       8.9
 2019.8333   NOV   166.6     100.6      75.1      16.0      12.5       9.0
 2019.9167   DEC   170.2     102.6      75.3      16.0      12.7       9.0
 2020.0000   JAN   173.5     104.9      75.2      16.1      12.9       8.8
 2020.0833   FEB   178.1     107.3      75.2      16.7      13.0       8.4
 2020.1667   MAR   183.8     109.8      75.3      17.1      13.0       8.2
 2020.2500   APR   187.7     112.2      75.7      17.5      13.1       8.2
 2020.3333   MAY   189.8     114.8      76.1      18.2      13.2       8.1
 2020.4167   JUN   190.7     117.3      76.6      18.5      13.2       7.9
 2020.5000   JUL   191.4     119.6      77.5      18.5      13.1       7.8
 2020.5833   AUG   194.0     121.7      78.3      18.7      13.1       7.9
 2020.6667   SEP   196.9     123.6      78.6      19.0      13.2       8.1
 2020.7500   OCT   199.5     125.3      79.6      18.6      13.3       8.6
 2020.8333   NOV   203.8     127.2      80.8      17.8      13.3       9.2
 2020.9167   DEC   209.3     129.1      82.2      18.1      13.4       9.6
 2021.0000   JAN   212.7     131.4      84.1      18.9      13.5      10.1
 2021.0833   FEB   214.5     133.8      85.4      19.1      13.6      10.1
 2021.1667   MAR   218.5     136.2      86.3      19.5      13.9      10.3
 2021.2500   APR   222.8     138.9      88.1      20.5      14.1      10.4
 2021.3333   MAY   225.1     141.5      90.0      20.2      14.1      10.6
 2021.4167   JUN   226.6     143.9      91.1      20.4      14.1      10.2
 2021.5000   JUL   228.5     146.5      93.3      20.7      14.1      10.2
 2021.5833   AUG   230.7     149.1      95.7      21.1      14.2       9.9
 2021.6667   SEP   233.6     151.4      97.5      21.4      14.2       9.8
 2021.7500   OCT   236.4     153.5      98.7      21.4      14.4      10.5
 2021.8333   NOV   238.3     155.6      98.8      21.6      14.5      10.9
 2021.9167   DEC   238.0     157.6      98.2      21.9      14.7      10.9
 2022.0000   JAN   238.0     159.7      97.8      22.4      14.9      11.0
 2022.0833   FEB   239.9     161.7      99.1      22.9      15.1      11.2
