| Monthly Preliminary Report | ||||||
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MPR |  |
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| Kjell Inge Malde, Director/Editor | Web: | http://www.cv-helios.net | ||||
| Hunsteinstien 42A, N-4083 Hundvaag NORWAY | Email: | cvhelios@gmail.com | ||||
| Volume 45 Number 1 MPR 529 August 2025 (ISSN 2535-3780) | ||||||
| CV-Helios Network | ||||||
| Monthly Preliminary Report for August 2025 | ||||||
| Solar Cycle 25: Month no. 69 | ||||||
| Report id.: cv9008.html - CV-report no.: 529 | ||||||
| Memno. | Name | Country | CV | Obs | K | Obs. Tot. |
| CV-001 | KJELL INGE MALDE | NORWAY | 138 | 25 | - - - | |
| CV-010 | FRANKY DUBOIS | BELGIUM | 100 | 30 | - - - | |
| CV-019 | ELMAR JUNKER | GERMANY | 191 | 3 | - - - | |
| CV-023 | HARTMUT BRETSCHNEIDER | GERMANY | 082 | 26 | - - - | |
| CV-040 | ROBERTO BATTAIOLA | ITALY | 107 | 6 | - - - | |
| CV-068 | SVEN OVE THIMM | DENMARK | 084 | 21 | - - - | |
| CV-077 | ANDREW JOHNSTON | UNITED KINGDOM | 109 | 25 | - - - | |
| CV-080 | JAN JANSSENS | BELGIUM | 074 | 1 | - - - | |
| CV-082 | PIOTR URBANSKI | POLAND | 134 | 31 | - - - | |
| CV-086 | TOS POLAND | POLAND | 125 | 31 | - - - | |
| CV-091 | GRZEGORZ DALEK | POLAND | 124 | 24 | - - - | |
| CV-102 | PAULO ROBERTO MOSER | BRAZIL | 111 | 28 | - - - | |
| CV-103 | OCTAAF STEEN | BELGIUM | 117 | 25 | - - - | |
| CV-105 | ALEXEY RYBACK | RUSSIA | 116 | 18 | - - - | |
| CV-116 | TERJE BJERKGAARD | NORWAY | 154 | 8 | - - - | |
| CV-122 | VLASTISLAV FEIK | CZECH REPUBLIC | 122 | 12 | - - - | |
| CV-135 | GEMA ARAUJO | SPAIN | 158 | 31 | - - - | |
| CV-136 | FAUSTINO GARCIA | SPAIN | 102 | 19 | - - - | |
| CV-139 | JAVIER ALONSO | SPAIN | 168 | 15 | - - - | |
| CV-151 | JEFFREY CARELS | BELGIUM | 101 | 15 | - - - | |
| CV-171 | WALTER JOSE MALUF | BRAZIL | 169 | 28 | - - - | |
| CV-177 | HENDRIK DE BACKER | BELGIUM | 127 | 30 | - - - | |
| CV-181 | ADAM DERDZIKOWSKI | POLAND | 139 | 8 | - - - | |
| CV-198 | DENIS WALLIAN | FRANCE | 136 | 21 | - - - | |
| CV-204 | STEFAN MEISTER | SWITZERLAND | 106 | 4 | - - - | |
| CV-205 | TOM MANGELSDORF | UNITED STATES | 088 | 1 | - - - | |
| CV-207 | ONDREJOV OBSERVATORY (AI CAS) | CZECH REPUBLIC | 156 | 31 | - - - | |
| CV-208 | JOHAN NEYS | BELGIUM | 105 | 15 | - - - | |
| CV-211 | EDWIN DE CEUNINCK | BELGIUM | 096 | 27 | - - - | |
| CV-213 | DIRK LAURENT | BELGIUM | 105 | 22 | - - - | |
| CV-214 | IGOR GRAGEDA MENDEZ | BOLIVIA | 127 | 29 | - - - | |
| CV-215 | ARNAUD MENGUS | FRANCE | 128 | 3 | - - - | |
| CV-219 | KANDILLI OBSERVATORY | TURKEY | 110 | 30 | - - - | |
| CV-220 | MICHEL FRANGEUL | FRANCE | 102 | 10 | - - - | |
| CV-222 | MILENA NIEMCZYK | POLAND | 101 | 3 | - - - | |
| CV-224 | SWO-NOAA (CV-USAF) | UNITED STATES | 120 | 31 | - - - | |
| Totals | Observers | Days | CV | No | K | Obs. tot. |
| 36 | 31 | 120,34 | 687 | 247091,000 | ||
| Results for Results for August 2025 | ||||||
| Date | CV | Obsrvrs | Obs. 6 rot. |
Obsrvrs. 6 rot. |
CV-6 rot. | CV-13 rot. |
| 1 | 112,95 | 20 | 3392 | 20,68 | 64,04 | 75,68 |
| 2 | 116,30 | 20 | 3394 | 20,70 | 63,98 | 75,54 |
| 3 | 114,48 | 21 | 3402 | 20,74 | 63,90 | 75,47 |
| 4 | 119,24 | 21 | 3410 | 20,79 | 63,82 | 75,41 |
| 5 | 124,13 | 23 | 3415 | 20,82 | 63,72 | 75,32 |
| 6 | 148,54 | 26 | 3421 | 20,86 | 63,68 | 75,28 |
| 7 | 153,26 | 23 | 3432 | 20,93 | 63,65 | 75,22 |
| 8 | 164,89 | 19 | 3434 | 20,94 | 63,64 | 75,11 |
| 9 | 137,81 | 27 | 3440 | 20,98 | 63,72 | 74,97 |
| 10 | 139,72 | 25 | 3449 | 21,03 | 63,85 | 74,84 |
| 11 | 149,87 | 23 | 3451 | 21,04 | 64,07 | 74,72 |
| 12 | 136,40 | 25 | 3461 | 21,10 | 64,29 | 74,56 |
| 13 | 128,05 | 20 | 3464 | 21,12 | 64,44 | 74,38 |
| 14 | 118,09 | 22 | 3466 | 21,13 | 64,47 | 74,21 |
| 15 | 86,00 | 24 | 3473 | 21,18 | 64,38 | 73,96 |
| 16 | 83,80 | 20 | 3468 | 21,15 | 64,31 | 73,75 |
| 17 | 50,76 | 25 | 3467 | 21,14 | 64,15 | 73,51 |
| 18 | 29,25 | 24 | 3470 | 21,16 | 64,01 | 73,31 |
| 19 | 25,70 | 20 | 3469 | 21,15 | 63,88 | 73,08 |
| 20 | 50,32 | 22 | 3471 | 21,16 | 63,82 | 72,90 |
| 21 | 57,80 | 20 | 3472 | 21,17 | 63,72 | 72,74 |
| 22 | 58,06 | 17 | 3472 | 21,17 | 63,55 | 72,59 |
| 23 | 61,09 | 23 | 3478 | 21,21 | 63,38 | 72,43 |
| 24 | 87,04 | 26 | 3494 | 21,30 | 63,20 | 72,27 |
| 25 | 149,41 | 27 | 3506 | 21,38 | 63,26 | 72,19 |
| 26 | 171,42 | 24 | 3511 | 21,41 | 63,36 | 72,18 |
| 27 | 211,56 | 16 | 3505 | 21,37 | 63,48 | 72,24 |
| 28 | 203,81 | 26 | 3516 | 21,44 | 63,65 | 72,34 |
| 29 | 192,84 | 19 | 3510 | 21,40 | 63,76 | 72,40 |
| 30 | 193,25 | 20 | 3508 | 21,39 | 63,91 | 72,46 |
| 31 | 220,32 | 19 | 3504 | 21,37 | 64,24 | 72,51 |
| Totals/ Avrgs. |
122,46 | 22,16 | 3462,10 | 21,11 | 63,85 | 73,79 |
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| Sunspot Regions of month/year August 2025 | ||||||
| Reg,1stD,Rot,Mo.Yr,Cla;Lat,Long,Mvh | Reg,1stD,Rot,Mo.Yr,Cla;Lat,Long,Mvh | |||||
| 4168 02.08.2025 2300 08.2025 EKC 06 102 0185 | 4198 25.08.2025 2301 08.2025 CRO 10 154 0012 | |||||
| 4169 04.08.2025 2300 08.2025 CSO 22 037 0063 | 4199 25.08.2025 2301 08.2025 DAI 05 118 0162 | |||||
| 4170 05.08.2025 2300 08.2025 DSO -15 129 0095 | 4200 26.08.2025 2301 08.2025 DSO -09 174 0050 | |||||
| 4171 06.08.2025 2300 08.2025 CSO 19 013 0036 | 4201 26.08.2025 2301 08.2025 DSI -21 120 0073 | |||||
| 4172 06.08.2025 2300 08.2025 EAC 08 026 0124 | 4202 26.08.2025 2301 08.2025 CSO -15 113 0106 | |||||
| 4173 06.08.2025 2300 08.2025 DRO -16 103 0016 | 4203 26.08.2025 2301 08.2025 DAO 10 235 0043 | |||||
| 4174 07.08.2025 2300 08.2025 DAO -07 082 0028 | 4204 27.08.2025 2301 08.2025 HRX 03 104 0010 | |||||
| 4175 08.08.2025 2300 08.2025 HSX 12 353 0028 | 4205 29.08.2025 2301 08.2025 HSX 18 067 0047 | |||||
| 4176 08.08.2025 2300 08.2025 DRO 26 007 0013 | 4206 29.08.2025 2301 08.2025 HSX 09 064 0082 | |||||
| 4177 08.08.2025 2300 08.2025 HSX 05 353 0018 | 4207 30.08.2025 2301 08.2025 FHI 30 052 0208 | |||||
| 4178 09.08.2025 2300 08.2025 DSI 09 057 0122 | 4208 31.08.2025 2301 08.2025 DRO 18 176 0027 | |||||
| 4179 11.08.2025 2301 08.2025 CSO -11 320 0028 | ||||||
| 4180 12.08.2025 2301 08.2025 DAI -04 298 0036 | ||||||
| 4181 13.08.2025 2300 08.2025 CRO -12 010 0013 | ||||||
| 4182 13.08.2025 2301 08.2025 DAO 08 274 0020 | ||||||
| 4183 14.08.2025 2300 08.2025 BXO -02 032 0010 | ||||||
| 4184 14.08.2025 2300 08.2025 CSO -19 008 0015 | ||||||
| 4185 14.08.2025 2300 08.2025 BXO 17 008 0010 | ||||||
| 4186 15.08.2025 2300 08.2025 DSO 07 006 0045 | ||||||
| 4187 18.08.2025 2301 08.2025 DAO -18 261 0035 | ||||||
| 4188 18.08.2025 2301 08.2025 HSX -09 208 0039 | ||||||
| 4189 19.08.2025 2301 08.2025 HSX 07 220 0019 | ||||||
| 4190 20.08.2025 2301 08.2025 BXO 18 197 0010 | ||||||
| 4191 20.08.2025 2301 08.2025 EHI 10 174 0301 | ||||||
| 4192 21.08.2025 2301 08.2025 BXO 28 268 0010 | ||||||
| 4193 24.08.2025 2301 08.2025 AXX -27 217 0010 | ||||||
| 4194 24.08.2025 2301 08.2025 CAO 02 188 0018 | ||||||
| 4195 24.08.2025 2301 08.2025 HAX -17 147 0014 | ||||||
| 4196 24.08.2025 2301 08.2025 HRX -11 137 0013 | ||||||
| 4197 24.08.2025 2301 08.2025 EKC -17 135 0507 | ||||||
| Average CV-USAF for maximum classifications for 41 regions: 17,02, equivalent to a class ERI | ||||||
| and based on CV-table, maximum achieved is 28,37% | ||||||
| Last update: 13.03.2026 13:40 | ||||||
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