Monthly Ri Report

Provisional daily, monthly and monthly smoothed sunspot numbers.
Source SIDC (RWC-Belgium)
Frequency Monthly
Format Plain text
Mail header Monthly Ri Report
SIDC code ri

Latest issue

:Issued: 2019 Oct 01 09:36 UTC
:Product: documentation at http://www.sidc.be/products/ri 
#-------------------------------------------------------------#
# 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
September 2019 : 1.1 (one point one)

Maximum : 14 on 1, 2 // Minimum : 0 on 4, 5, 6, 7, 8, 9, 10, 11, 12, 
13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30

Provisional daily International Sunspot Numbers for September 2019 : 

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

70 cooperating stations on October 1, 10 UT

Predictions of the monthly smoothed Sunspot Number using the last
provisional value, calculated for March 2019 :   4.6 (+-5%)

            SM    CM                 SM    CM                 SM    CM     

2019 Apr     5     4     2019 Oct     3    12     2020 Apr     3    31
     May     5     3          Nov     3    14          May     4    36
     Jun     5     4          Dec     3    17          Jun     4    40
     Jul     4     6     2020 Jan     3    20          Jul     4    44
     Aug     4     8          Feb     3    23          Aug     5    49
     Sep     3    10          Mar     3    27          Sep     6    53

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                                       #
# Tel.: ../32/(0)2/373 02 33      Fax : ../32/(0)2/374 98 22         #
# Please do not reply directly to this message                       #
# For more information, contact: silso.info@oma.be                   #
# or visit first our Web site at: http://www.sidc.be/silso           #  
# To unsubscribe, visit http://sidc.be/registration/unsub.php        #
#--------------------------------------------------------------------#

----------------------------------------------------------------------
| Legal notices:                                                     |
| - Intellectual Property Rights:                                    |
|   http://www.astro.oma.be/common/internet/en/data-policy-en.pdf    |
| - Liability Disclaimer:                                            |
|   http://www.astro.oma.be/common/internet/en/disclaimer-en.pdf     |
| - Use and processing of your personal information:                 |
|   http://www.astro.oma.be/common/internet/en/privacy-policy-en.pdf |
----------------------------------------------------------------------

Details

Not available yet.
Check the ISES code book for information on ISES codes.