 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% 

 2005.0000   JAN   101.7      99.6      97.4      15.1      14.5      13.8
 2005.0833   FEB   102.5      98.0      94.6      15.3      14.2      12.7
 2005.1667   MAR   103.0      96.8      92.6      15.0      13.9      12.4
 2005.2500   APR   101.5      95.4      90.8      15.2      13.7      12.1
 2005.3333   MAY    99.2      93.8      89.3      15.2      13.5      11.3
 2005.4167   JUN    98.6      92.3      87.9      15.0      13.1      10.4
 2005.5000   JUL    98.5      91.0      86.9      14.8      12.8       9.5
 2005.5833   AUG    98.2      89.8      86.0      15.0      12.3       8.5
 2005.6667   SEP    97.7      88.5      84.5      15.4      11.9       7.8
 2005.7500   OCT    96.8      87.0      82.4      16.5      11.8       7.4
 2005.8333   NOV    95.9      85.7      81.0      17.5      11.7       7.2
 2005.9167   DEC    94.9      84.6      80.4      17.9      11.5       6.9
 2006.0000   JAN    93.7      83.7      80.0      17.9      11.3       6.6
 2006.0833   FEB    92.6      82.8      79.0      17.5      11.1       6.5
 2006.1667   MAR    91.5      82.0      78.1      17.4      10.8       6.1
 2006.2500   APR    90.0      81.2      77.4      17.8      10.7       6.1
 2006.3333   MAY    88.1      80.3      76.5      17.9      10.7       6.1
 2006.4167   JUN    85.7      79.2      75.4      17.8      10.7       6.3
 2006.5000   JUL    83.1      78.2      74.5      17.5      10.6       6.5
 2006.5833   AUG    81.1      77.2      74.0      16.6      10.6       6.7
 2006.6667   SEP    80.8      76.4      73.1      15.7      10.5       6.9
 2006.7500   OCT    80.5      75.6      72.3      15.3      10.6       7.0
 2006.8333   NOV    81.1      74.9      71.5      15.7      10.6       7.1
 2006.9167   DEC    81.5      74.4      71.2      16.1      10.7       7.3
 2007.0000   JAN    82.2      73.8      70.5      16.6      10.9       7.4
 2007.0833   FEB    83.5      73.2      69.7      16.8      11.0       7.8
 2007.1667   MAR    84.8      72.8      68.8      17.2      11.0       7.8
 2007.2500   APR    86.5      72.5      68.0      17.6      11.0       7.8
 2007.3333   MAY    88.9      72.3      67.2      17.8      11.0       7.8
 2007.4167   JUN    91.4      72.2      66.5      17.8      11.0       7.7
 2007.5000   JUL    94.5      72.3      66.0      17.5      10.9       7.6
 2007.5833   AUG    99.4      72.7      65.8      17.1      10.9       7.5
 2007.6667   SEP   104.4      73.2      65.4      16.1      10.8       7.6
 2007.7500   OCT   109.1      73.7      64.9      15.3      10.8       7.6
 2007.8333   NOV   113.3      74.3      64.5      15.9      10.6       7.8
 2007.9167   DEC   116.5      75.0      64.1      16.0      10.5       7.8
 2008.0000   JAN   119.7      75.9      64.0      16.4      10.7       7.9
 2008.0833   FEB   123.2      76.8      63.5      16.5      10.8       7.7
 2008.1667   MAR   127.0      77.5      62.5      16.7      10.9       7.7
 2008.2500   APR   131.2      78.5      62.2      17.0      10.9       7.8
 2008.3333   MAY   136.5      79.9      62.2      17.2      11.0       8.0
 2008.4167   JUN   142.3      81.7      62.3      17.2      11.2       8.3
 2008.5000   JUL   146.9      83.6      62.7      17.4      11.4       8.6
 2008.5833   AUG   150.6      85.8      63.4      17.6      11.7       9.0
 2008.6667   SEP   153.3      88.3      64.5      17.5      12.0       8.8
 2008.7500   OCT   155.3      90.6      65.6      16.9      12.2       8.8
 2008.8333   NOV   157.7      93.2      66.4      16.1      12.3       8.8
 2008.9167   DEC   161.4      96.0      67.5      15.7      12.2       8.8
 2009.0000   JAN   166.0      99.0      69.2      15.6      12.3       8.7
 2009.0833   FEB   170.3     102.1      70.7      15.3      12.4       8.5
 2009.1667   MAR   176.6     105.8      72.8      15.1      12.4       8.1
 2009.2500   APR   184.0     109.9      75.6      14.8      12.4       7.8
 2009.3333   MAY   190.0     114.4      79.4      14.6      12.5       7.8
 2009.4167   JUN   194.4     119.1      83.5      14.6      12.4       7.7
 2009.5000   JUL   197.4     123.8      87.6      15.1      12.6       7.9
 2009.5833   AUG   199.6     127.8      91.6      15.7      12.7       8.2
 2009.6667   SEP   202.9     130.4      92.2      16.2      12.9       8.4
 2009.7500   OCT   206.1     133.0      92.9      16.7      13.1       8.6
 2009.8333   NOV   209.3     135.5      93.5      17.2      13.2       8.8
 2009.9167   DEC   212.4     138.1      94.2      17.7      13.4       9.0
 2010.0000   JAN   215.5     140.5      94.8      18.1      13.5       9.2
 2010.0833   FEB   218.5     142.9      95.4      18.6      13.7       9.4
 2010.1667   MAR   221.4     145.2      96.0      19.0      13.8       9.6
 2010.2500   APR   224.1     147.4      96.5      19.4      14.0       9.8
 2010.3333   MAY   226.7     149.5      97.0      19.8      14.1       9.9
 2010.4167   JUN   229.1     151.4      97.5      20.2      14.2      10.1
 2010.5000   JUL   231.4     153.2      98.0      20.5      14.3      10.2
 2010.5833   AUG   233.5     154.9      98.4      20.8      14.4      10.3
 2010.6667   SEP   235.3     156.4      98.8      21.1      14.5      10.5
 2010.7500   OCT   236.9     157.6      99.1      21.3      14.6      10.6
 2010.8333   NOV   238.3     158.7      99.4      21.5      14.6      10.6
 2010.9167   DEC   239.4     159.6      99.6      21.7      14.7      10.7
 2011.0000   JAN   240.2     160.2      99.7      21.8      14.7      10.8
 2011.0833   FEB   240.7     160.6      99.8      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
