Informe mes de Julio 2017

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#-------------------------------------------------------------#
# MONTHLY TABLE OF THE INTERNATIONAL TOTAL SUNSPOT NUMBER     #
# AND 12-MONTH PREDICTIONS from the World Data Center SILSO   #
#-------------------------------------------------------------#

Provisional International monthly mean Sunspot Number for
July 2017 : 18.3 (eighteen point three)

Maximum : 63 on 12 // Minimum : 0 on 3, 4, 18, 19, 20, 21, 22, 23, 24, 27, 31

Provisional daily International Sunspot Numbers for July 2017 : 

      1.. 25    6.. 15   11.. 39   16.. 21   21..  0   26.. 12   31..  0
      2.. 12    7.. 26   12.. 63   17.. 22   22..  0   27..  0
      3..  0    8.. 31   13.. 59   18..  0   23..  0   28.. 11
      4..  0    9.. 43   14.. 52   19..  0   24..  0   29.. 16
      5.. 14   10.. 45   15.. 33   20..  0   25.. 12   30.. 15

77 cooperating stations on August 1, 08 UT

Predictions of the monthly smoothed Sunspot Number using the last
provisional value, calculated for January 2017 :  27.9 (+-5%)

            SM    CM                 SM    CM                 SM    CM     

2017 Feb    25    25     2017 Aug    20    24     2018 Feb    14    28
     Mar    22    24          Sep    19    25          Mar    13    27
     Apr    23    23          Oct    18    25          Apr    11    23
     May    22    21          Nov    17    25          May    10    22
     Jun    21    21          Dec    16    26          Jun     8    21
     Jul    21    23     2018 Jan    15    27          Jul     6    20

SM : SIDC classical method : based on an interpolation of Waldmeier's
standard curves; the estimated error ranges from 7% (first month) to
35% (last month)
CM : Combined method : the combined method is a regression technique
coupling a dynamo-based estimator with Waldmeier's idea of standard
curves, due to K. Denkmayr.
ref. : K. Denkmayr, P. Cugnon, 1997 : "About Sunspot Number Medium-Term
Predictions", in "Solar-Terrestrial Prediction Workshop V", eds.
G. Heckman et al., Hiraiso Solar Terrestrial Research Center, Japan, 103



#--------------------------------------------------------------------#
# World Data Center SILSO                                            #
# Sunspot Index and Long-term Solar Observations                     #
# Royal Observatory of Belgium                                       #
#--------------------------------------------------------------------#
#--------------------------------------------------------------------#
# MONTHLY TABLE OF THE TOTAL AND HEMISPHERIC SUNSPOT NUMBERS         #
# from the World Data Center SILSO                                   #
#--------------------------------------------------------------------#


                                      JULY 2017


        PROVISIONAL INTERNATIONAL NORMALIZED HEMISPHERIC SUNSPOT NUMBERS


               Date             Sn           Sn(N)           Sn(S)
       __________________________________________________________________

                 1              25              25               0
                 2              12              12               0
                 3               0               0               0
                 4               0               0               0
                 5              14               0              14
                 6              15               0              15
                 7              26               0              26
                 8              31               0              31
                 9              43              11              32
                10              45              11              34
                11              39               0              39
                12              63              26              37
                13              59              23              36
                14              52              21              31
                15              33              13              20
                16              21              10              11
                17              22              11              11
                18               0               0               0
                19               0               0               0
                20               0               0               0
                21               0               0               0
                22               0               0               0
                23               0               0               0
                24               0               0               0
                25              12              12               0
                26              12              12               0
                27               0               0               0
                28              11              11               0
                29              16              16               0
                30              15              15               0
                31               0               0               0
       __________________________________________________________________

       MONTHLY MEAN :          18.3             7.4            10.9

       COOPERATING STATIONS :   77              61              61

                 PILOT STATION : Specola Solare Ticinese, Locarno

       __________________________________________________________________

                   Reproduction permitted if source mentionned



#--------------------------------------------------------------------#
# World Data Center SILSO                                            #
# Sunspot Index and Long-term Solar Observations                     #
# Royal Observatory of Belgium                                       #
#--------------------------------------------------------------------#
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