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 10 |
MPR no. 483 |
October 2021 |
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Monthly Preliminary Report for October 2021 |
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Solar Cycle 25: Month no. 23 |
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Report id.: cv2110 - |
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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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53,8 |
20 |
1,355 |
8815 |
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DIETER BRAUCKHOFF |
GERMANY |
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61,7 |
27 |
1,554 |
1700 |
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FRANKY DUBOIS |
BELGIUM |
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34,0 |
25 |
0,856 |
9137 |
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ELMAR JUNKER |
GERMANY |
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59,9 |
12 |
1,509 |
3643 |
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MANFRED HOLL |
GERMANY |
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31,8 |
20 |
0,800 |
5749 |
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HOWARD BARNES |
NEW ZEALAND |
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38,9 |
7 |
0,979 |
4559 |
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HARTMUT BRETSCHNEI |
GERMANY |
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27,9 |
26 |
0,702 |
5453 |
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ROBERTO BATTAIOLA |
ITALY |
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23,1 |
8 |
0,583 |
1958 |
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SVEN OVE THIMM |
DENMARK |
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22,9 |
11 |
0,577 |
3903 |
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ANDREW JOHNSTON |
UNITED KINGDOM |
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37,0 |
17 |
0,932 |
3323 |
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JAN JANSSENS |
BELGIUM |
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51,0 |
4 |
1,285 |
1129 |
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PIOTR URBANSKI |
POLAND |
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47,8 |
18 |
1,205 |
5102 |
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TOS POLAND |
POLAND |
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34,4 |
31 |
0,867 |
7997 |
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GRZEGORZ DALEK |
POLAND |
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35,6 |
20 |
0,896 |
4452 |
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PAULO ROBERTO MOSE |
BRAZIL |
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21,6 |
16 |
0,543 |
2492 |
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ALEXEY RYBACK |
RUSSIA |
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48,6 |
7 |
1,224 |
3193 |
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MONTY LEVENTHAL |
AUSTRALIA |
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33,1 |
22 |
0,834 |
4618 |
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VLASTISLAV FEIK |
CZECH REPUBLIC |
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37,4 |
23 |
0,943 |
2879 |
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GEMA ARAUJO |
SPAIN |
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49,5 |
25 |
1,247 |
6813 |
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FAUSTINO GARCIA |
SPAIN |
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26,8 |
19 |
0,676 |
3619 |
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JAVIER ALONSO |
SPAIN |
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41,6 |
5 |
1,048 |
3717 |
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JEFFREY CARELS |
BELGIUM |
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25,5 |
11 |
0,641 |
2958 |
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WALTER JOSE MALUF |
BRAZIL |
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64,5 |
14 |
1,625 |
2593 |
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ADAM DERDZIKOWSKI |
POLAND |
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26,8 |
8 |
0,674 |
995 |
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DENIS WALLIAN |
FRANCE |
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50,2 |
11 |
1,264 |
468 |
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STEFAN MEISTER |
SWITZERLAND |
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40,0 |
12 |
1,008 |
542 |
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TOM MANGELSDORF |
UNITED STATES |
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56,0 |
1 |
1,411 |
44 |
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ONDREJOV OBS. (AI CAS |
CZECH REPUBLIC |
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51,5 |
22 |
1,299 |
3421 |
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JOHAN NEYS |
BELGIUM |
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44,4 |
8 |
1,118 |
540 |
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JEAN BOURGEOIS |
BELGIUM |
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32,6 |
27 |
0,821 |
904 |
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IGOR GRAGEDA |
BOLIVIA |
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43,5 |
28 |
1,096 |
706 |
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ARNAUD MENGUS |
FRANCE |
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33,2 |
13 |
0,837 |
223 |
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Totals
Observers |
Days |
CV |
No |
K |
32 |
31 |
40,20 |
518 |
1,013 |
Page 1 of 6
Results
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Date |
CV |
Obsrvrs |
Regions |
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6 rot. |
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1 |
54,25 |
20 |
2,20 |
25,24 |
25,61 |
20,33 |
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2 |
52,44 |
16 |
2,21 |
25,51 |
25,55 |
20,47 |
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3 |
33,17 |
18 |
2,21 |
25,61 |
25,53 |
20,56 |
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4 |
44,82 |
17 |
2,21 |
25,92 |
25,63 |
20,66 |
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5 |
42,07 |
14 |
2,20 |
25,81 |
25,63 |
20,74 |
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6 |
31,82 |
11 |
2,18 |
25,65 |
25,53 |
20,79 |
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7 |
26,28 |
18 |
2,17 |
25,40 |
25,24 |
20,84 |
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8 |
35,56 |
25 |
2,16 |
25,18 |
25,01 |
20,93 |
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9 |
42,14 |
21 |
2,15 |
25,26 |
24,95 |
21,02 |
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10 |
44,91 |
22 |
2,15 |
25,43 |
25,07 |
21,12 |
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11 |
35,94 |
16 |
2,15 |
25,60 |
25,16 |
21,18 |
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12 |
31,07 |
15 |
2,15 |
25,90 |
25,31 |
21,25 |
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13 |
32,22 |
18 |
2,16 |
26,18 |
25,49 |
21,32 |
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14 |
27,50 |
12 |
2,16 |
26,44 |
25,69 |
21,37 |
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15 |
23,76 |
21 |
2,16 |
26,68 |
25,82 |
21,41 |
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16 |
18,37 |
19 |
2,16 |
26,74 |
25,95 |
21,39 |
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17 |
1,36 |
14 |
2,16 |
26,74 |
25,98 |
21,34 |
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18 |
9,88 |
17 |
2,16 |
26,74 |
25,99 |
21,29 |
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19 |
10,33 |
9 |
2,16 |
26,73 |
26,02 |
21,18 |
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20 |
12,07 |
15 |
2,16 |
26,62 |
25,99 |
21,14 |
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21 |
14,53 |
15 |
2,16 |
26,51 |
25,91 |
21,14 |
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22 |
25,86 |
14 |
2,16 |
26,51 |
25,89 |
21,18 |
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23 |
41,20 |
20 |
2,16 |
26,66 |
25,99 |
21,28 |
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24 |
43,45 |
20 |
2,16 |
26,93 |
26,12 |
21,33 |
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25 |
55,71 |
17 |
2,17 |
27,19 |
26,35 |
21,37 |
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26 |
65,35 |
17 |
2,20 |
27,71 |
26,63 |
21,39 |
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27 |
70,00 |
14 |
2,22 |
28,10 |
26,94 |
21,42 |
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28 |
73,06 |
16 |
2,24 |
28,52 |
27,27 |
21,47 |
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29 |
77,50 |
20 |
2,26 |
29,08 |
27,60 |
21,58 |
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30 |
71,00 |
16 |
2,27 |
29,32 |
27,89 |
21,66 |
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31 |
63,73 |
11 |
2,29 |
29,60 |
28,10 |
21,72 |
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Totals/ |
3,96 |
27,3 |
0,97 |
4,83 |
25,99 |
21,16 |
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Avrgs |
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Page 2 of 6
CV and CV observers
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CV for October 2021 |
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Observers in October 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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News October 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 about 7 percent compared to cycle 24.
There were a total of 18 sunspot regions developing in September 2021.
List of 7 significant sunspot regions developing in October 2021:
The LARGEST SUNSPOT REGIONS (>=100 mvh)
2877:
2880:
2882:
2886:
2887:
2891:
2893:
Activity cut from Sunspot Region Summaries from NOAA:
10 Oct: Region 2882 (N17W01, Dho) produced an M1/2b flare.
29 Oct: Solar activity reached high levels. Region 2887 (S27W15, Dhi) produced an X1 flare.
30 Oct: Solar activity reached moderate levels.
Region 2891 (N17E41, Dki) produced an M1 flare observed at 29/0242 UTC. 31 Oct: Region 2887 (S27W54, Cso) produced an M1/1f flare.
Apart from this solar activity varied from very low to low and mostly
Solar Max.: 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.
Largest Regions of Oct. 2021
Regions 2887 and 2891 on October 28, 2021 courtesy SDO/HMI NOAA gov
and Spaceweather.com
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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.: 12204 entries registered
containing 196729
Last 12 months 7116
Editorial close: 16.11.2021 12:35 UTC
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Page 6 of 6