Monthly Preliminary Report
MPR
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Kjell Inge Malde, Director/Editor |
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Hunsteinstien 42A, |
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Volume 41 Number 9 |
MPR no. 482 |
September 2021 |
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Monthly Preliminary Report for September 2021 |
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Solar Cycle 25: Month no. 22 |
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Report id.: cv2109 - |
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Memno. |
Name |
Country |
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CV |
Obs |
K |
Obs. Tot. |
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KJELL INGE MALDE |
NORWAY |
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59,6 |
17 |
1,176 |
8795 |
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DIETER BRAUCKHOFF |
GERMANY |
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79,8 |
24 |
1,574 |
1673 |
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FRANKY DUBOIS |
BELGIUM |
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41,2 |
25 |
0,814 |
9112 |
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ELMAR JUNKER |
GERMANY |
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88,8 |
11 |
1,753 |
3631 |
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MANFRED HOLL |
GERMANY |
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62,7 |
15 |
1,237 |
5729 |
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HOWARD BARNES |
NEW ZEALAND |
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20,6 |
9 |
0,406 |
4552 |
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ROBERTO BATTAIOLA |
ITALY |
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54,5 |
10 |
1,076 |
1950 |
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JENS ROTHERMEL |
GERMANY |
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57,6 |
9 |
1,136 |
1287 |
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SVEN OVE THIMM |
DENMARK |
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48,3 |
10 |
0,953 |
3892 |
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ANDREW JOHNSTON |
UNITED KINGDOM |
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33,2 |
18 |
0,655 |
3306 |
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JAN JANSSENS |
BELGIUM |
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38,6 |
5 |
0,762 |
1125 |
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PIOTR URBANSKI |
POLAND |
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50,0 |
24 |
0,986 |
5084 |
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TOS POLAND |
POLAND |
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43,5 |
30 |
0,859 |
7966 |
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GRZEGORZ DALEK |
POLAND |
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52,8 |
23 |
1,042 |
4432 |
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PAULO ROBERTO MOSE |
BRAZIL |
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43,2 |
23 |
0,853 |
2476 |
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ALEXEY RYBACK |
RUSSIA |
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59,2 |
5 |
1,168 |
3186 |
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TERJE BJERKGAARD |
NORWAY |
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7,3 |
3 |
0,145 |
996 |
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GEMA ARAUJO |
SPAIN |
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44,8 |
30 |
0,884 |
6788 |
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FAUSTINO GARCIA |
SPAIN |
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48,4 |
8 |
0,955 |
3600 |
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JAVIER ALONSO |
SPAIN |
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39,6 |
20 |
0,781 |
3712 |
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JEFFREY CARELS |
BELGIUM |
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40,1 |
16 |
0,792 |
2947 |
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WALTER JOSE MALUF |
BRAZIL |
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68,2 |
29 |
1,345 |
2579 |
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ADAM DERDZIKOWSKI |
POLAND |
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67,4 |
7 |
1,331 |
987 |
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DENIS WALLIAN |
FRANCE |
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57,3 |
20 |
1,130 |
457 |
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STEFAN MEISTER |
SWITZERLAND |
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64,0 |
13 |
1,263 |
530 |
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TADEUSZ FIGIEL |
POLAND |
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35,7 |
6 |
0,704 |
267 |
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ONDREJOV OBS. (AI CAS |
CZECH REPUBLIC |
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58,8 |
19 |
1,161 |
3399 |
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JOHAN NEYS |
BELGIUM |
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43,4 |
14 |
0,857 |
532 |
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JEAN BOURGEOIS |
BELGIUM |
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27,5 |
22 |
0,543 |
877 |
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IGOR GRAGEDA |
BOLIVIA |
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47,1 |
27 |
0,929 |
678 |
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ARNAUD MENGUS |
FRANCE |
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68,7 |
10 |
1,356 |
210 |
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Totals
Observers |
Days |
CV |
No |
K |
31 |
30 |
50,06 |
502 |
0,988 |
Page 1 of 6
Results
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Date |
CV |
Obsrvrs |
Regions |
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6 rot. |
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1 |
34,17 |
18 |
1,85 |
16,97 |
18,64 |
15,75 |
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2 |
43,27 |
22 |
1,86 |
17,14 |
18,83 |
15,90 |
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3 |
28,85 |
20 |
1,86 |
17,21 |
18,89 |
16,01 |
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4 |
47,48 |
21 |
1,88 |
17,35 |
19,03 |
16,16 |
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5 |
78,04 |
25 |
1,89 |
17,75 |
19,47 |
16,44 |
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6 |
87,65 |
23 |
1,90 |
18,16 |
19,94 |
16,73 |
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7 |
104,05 |
20 |
1,92 |
18,74 |
20,48 |
17,05 |
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8 |
105,39 |
23 |
1,95 |
19,50 |
21,09 |
17,41 |
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9 |
100,47 |
19 |
1,98 |
20,32 |
21,60 |
17,70 |
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10 |
101,55 |
11 |
2,00 |
21,11 |
21,97 |
17,91 |
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11 |
86,67 |
15 |
2,02 |
21,90 |
22,38 |
18,14 |
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12 |
62,59 |
17 |
2,04 |
22,15 |
22,72 |
18,32 |
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13 |
37,88 |
16 |
2,04 |
22,32 |
22,94 |
18,42 |
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14 |
21,81 |
16 |
2,04 |
22,38 |
23,07 |
18,50 |
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15 |
4,00 |
10 |
2,04 |
22,37 |
23,14 |
18,54 |
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16 |
7,20 |
10 |
2,04 |
22,37 |
23,20 |
18,58 |
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17 |
3,53 |
15 |
2,04 |
22,36 |
23,26 |
18,59 |
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18 |
1,23 |
13 |
2,04 |
22,42 |
23,31 |
18,60 |
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19 |
11,73 |
15 |
2,04 |
22,54 |
23,39 |
18,65 |
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20 |
25,94 |
16 |
2,05 |
22,70 |
23,54 |
18,74 |
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21 |
49,80 |
15 |
2,07 |
23,09 |
23,77 |
18,89 |
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22 |
58,81 |
16 |
2,09 |
23,56 |
24,07 |
19,02 |
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23 |
56,21 |
14 |
2,11 |
23,74 |
24,29 |
19,15 |
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24 |
43,18 |
17 |
2,13 |
23,93 |
24,50 |
19,30 |
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25 |
35,53 |
15 |
2,14 |
24,12 |
24,63 |
19,39 |
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26 |
30,39 |
18 |
2,16 |
24,25 |
24,73 |
19,47 |
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27 |
17,31 |
16 |
2,15 |
24,27 |
24,78 |
19,53 |
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28 |
25,14 |
14 |
2,16 |
24,30 |
24,88 |
19,60 |
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29 |
53,67 |
15 |
2,18 |
24,74 |
25,09 |
19,72 |
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30 |
62,82 |
17 |
2,18 |
24,82 |
25,23 |
19,88 |
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Totals/ |
3,96 |
27,3 |
0,97 |
4,83 |
22,56 |
18,20 |
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Avrgs |
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Page 2 of 6
CV and CV observers |
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CV for September 2021 |
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Observers in September 2021 |
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LAST 10 SUNSPOT REGIONS
:Product: Weekly Highlights and Forecasts
:Issued: 2021 Oct 11 0049 UTC
#Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#Product description and SWPC contact on the Web
#
#
#Weekly Highlights and Forecasts
Highlights of Solar and Geomagnetic Activity 04 - 10 October 2021
Solar activity was very low over
M1/2b flare (with
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal and normal to moderate levels throughout the period.
Geomagnetic field activity was quiet on
Page 3 of 6
Monthly graph
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Cycle 21 |
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Cycle 22 |
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Cycle 23 |
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Cycle 24 |
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Cycle 25 |
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Progress of Solar Cycle 25 on overlay past solar cycles from Day 0 onwards.
News September 2021
Solar activity is still low but number of regions are slowly increasing.
As shown in this issue, the CV as
According to solar flux we are now ahead with almost 5 percent compared to cycle 24.
There were a total of 18 sunspot regions developing in September 2021.
List of 10 significant sunspot regions developing in September 2021: The LARGEST SUNSPOT REGIONS (>=100 mvh)
2860:
2863:
2864:
2866:
2868:
2871:
2872:
2873:
2877:
2880:
On the 8th September we had the highest
Solar cycle 25 update, and comparison solar cycle 24
It seems the
Originally July 2025, which now may occur end Feb/start March 2025.
We wish you all lots of sunny days, happy observing and good luck further on in 2021!
Please remember you are always welcome to contribute with drawings and photos!
Page 4 of 6
Pictures from last month - Observer contributions, etc.
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Largest Regions of Sep. 2021 |
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Regions 2866 and 2868 |
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on August 28, 2021 |
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courtesy SDO/HMI NOAA gov |
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(small region 2869 below) |
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Awards this month |
0 |
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none |
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New members: |
Welcome to: |
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none |
none |
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We are now 54 active members (last 12 mo.) |
Page 5 of 6
Solar Coordinates |
New from April 2020 |
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Daily list of Solar Ephemeris available at:
Daily list of Solar Ephemeris and SDO on grid
Here you can see Today's Po, Bo, Lo, Rotation no., RA and Dec. and adjusted
Calculating CV
For your convenience and security, use the mif2021,
the Monthly Input Form, which you can use for all of your next reportings!
Monitor MPR daily progress
The data are available fresh from about 10:00 UTC until local midnight. Content comprises
Last 24 months
Registration data
Check if your
CONTRIBUTE WITH YOUR PHOTOS AND OTHER OF INTEREST!
We would like YOU to contribute with drawings or photos from last month
Also any other contribution that may have an interest for our observers.
Please send by email to:
Please check out
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Submission before 15th of proceeding month 18:00 UTC.
MPR issue 15th of proceeding month 2000 UTC. Good luck
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- over 40 years in solar amateur astronomy service!
There are now Entries reg.: 12168 entries registered
containing 34749
Last 12 months 7208
Editorial close: 15.10.2021 14:22 UTC
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Page 6 of 6