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: 2023 Dec 01 09:47 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 November 2023 : 105.4 (one hundred and five point four) Maximum : 181 on 23 // Minimum : 25 on 17 Provisional daily International Sunspot Numbers for November 2023 : 1..115 6.. 77 11.. 79 16.. 30 21..152 26..165 2..120 7.. 77 12.. 81 17.. 25 22..155 27..154 3..122 8..112 13.. 72 18.. 31 23..181 28..148 4.. 91 9.. 98 14.. 57 19.. 67 24..162 29..158 5.. 91 10.. 91 15.. 34 20.. 95 25..174 30..148 64 cooperating stations on December 1, 10 UT Predictions of the monthly smoothed Sunspot Number using the last provisional value, calculated for May 2023 : 123.9 (+-5%) SM CM SM CM SM CM 2023 Jun 126 124 2023 Dec 152 121 2024 Jun 166 125 Jul 127 123 2024 Jan 157 122 Jul 163 129 Aug 132 122 Feb 162 122 Aug 161 131 Sep 136 122 Mar 165 122 Sep 158 133 Oct 140 122 Apr 167 121 Oct 155 133 Nov 146 121 May 167 122 Nov 152 133 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.