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MPR |
Kjell Inge
Malde, Director/Editor |
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Web: |
http://www.cv-helios.net |
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Hunsteinstien
42A, N-4083 Hundvaag NORWAY |
Email: |
cvhelios@gmail.com |
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Volume 44 Number 2 MPR no. 511 February 2024 ISSN 2535-3780 |
CV-Helios Network |
Monthly Preliminary Report for February 2024 |
Solar Cycle 25: Month no. 51 |
Report id.: cv2402 - CV-report no.: 511 |
Memno. |
Name |
Country |
CV |
Obs |
K |
Obs. Tot. |
CV-001 |
KJELL INGE
MALDE |
NORWAY |
123,2 |
14 |
1,078 |
9375 |
CV-010 |
FRANKY DUBOIS |
BELGIUM |
97,3 |
12 |
0,921 |
9759 |
CV-023 |
HARTMUT
BRETSCHNEIDER |
GERMANY |
92,1 |
14 |
0,820 |
5977 |
CV-040 |
ROBERTO
BATTAIOLA |
ITALY |
191,0 |
1 |
1,515 |
2158 |
CV-068 |
SVEN OVE THIMM |
DENMARK |
54,8 |
12 |
0,508 |
4329 |
CV-077 |
ANDREW JOHNSTON |
UNITED KINGDOM |
99,0 |
10 |
0,946 |
3721 |
CV-080 |
JAN JANSSENS |
BELGIUM |
111,0 |
1 |
1,068 |
1232 |
CV-082 |
PIOTR URBANSKI |
POLAND |
104,4 |
9 |
1,010 |
5592 |
CV-086 |
TOS POLAND |
POLAND |
124,7 |
29 |
1,109 |
8843 |
CV-091 |
GRZEGORZ DALEK |
POLAND |
112,6 |
12 |
0,966 |
4823 |
CV-102 |
PAULO ROBERTO
MOSER |
BRAZIL |
106,0 |
26 |
0,980 |
3205 |
CV-105 |
ALEXEY RYBACK |
RUSSIA |
109,8 |
16 |
1,027 |
3537 |
CV-122 |
VLASTISLAV FEIK |
CZECH REPUBLIC |
96,6 |
8 |
0,890 |
3223 |
CV-135 |
GEMA ARAUJO |
SPAIN |
136,8 |
27 |
1,227 |
7644 |
CV-136 |
FAUSTINO GARCIA |
SPAIN |
95,8 |
15 |
0,888 |
4039 |
CV-139 |
JAVIER ALONSO |
SPAIN |
136,5 |
22 |
1,169 |
4207 |
CV-151 |
JEFFREY CARELS |
BELGIUM |
104,2 |
5 |
0,982 |
3290 |
CV-158 |
JACQUES VAN
DELFT |
SOUTH AFRICA |
87,6 |
9 |
0,885 |
364 |
CV-171 |
WALTER JOSE
MALUF |
BRAZIL |
127,2 |
11 |
1,298 |
3103 |
CV-181 |
ADAM
DERDZIKOWSKI |
POLAND |
92,3 |
3 |
0,902 |
1214 |
CV-204 |
STEFAN MEISTER |
SWITZERLAND |
104,0 |
1 |
0,825 |
831 |
CV-206 |
TADEUSZ FIGIEL |
POLAND |
90,0 |
2 |
1,050 |
368 |
CV-207 |
ONDREJOV OBS.
(AI CAS) |
CZECH REPUBLIC |
114,8 |
10 |
1,057 |
3875 |
CV-208 |
JOHAN NEYS |
BELGIUM |
86,5 |
2 |
0,909 |
786 |
CV-214 |
IGOR GRAGEDA
MENDEZ |
BOLIVIA |
102,2 |
20 |
0,933 |
1411 |
CV-215 |
ARNAUD MENGUS |
FRANCE |
152,0 |
2 |
1,110 |
378 |
CV-219 |
KANDILLI
OBSERVATORY |
TURKEY |
102,9 |
22 |
0,929 |
1060 |
CV-220 |
MICHEL FRANGEUL |
FRANCE |
113,0 |
4 |
0,940 |
201 |
CV-222 |
MILENA NIEMCZYK |
POLAND |
52,7 |
3 |
0,647 |
93 |
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Totals |
Observers |
Days |
CV |
No |
K |
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29 |
29 |
107,62 |
322 |
0,986 |
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Month Results for February 2024 |
Date |
CV |
Obsrvrs |
Regions
6 rot. |
CV-USAF
6-rot.
6 rot. |
CV-6 rot. |
CV-13 rot. |
1 |
86,23 |
13 |
7,16 |
96,24 |
102,38 |
111,85 |
2 |
90,90 |
9 |
7,16 |
96,49 |
102,35 |
111,66 |
3 |
126,09 |
11 |
7,16 |
96,61 |
102,53 |
111,57 |
4 |
152,27 |
11 |
7,18 |
96,85 |
102,81 |
111,49 |
5 |
147,00 |
10 |
7,21 |
96,94 |
102,97 |
111,52 |
6 |
133,29 |
7 |
7,23 |
97,16 |
102,91 |
111,57 |
7 |
126,63 |
8 |
7,26 |
97,40 |
103,02 |
111,57 |
8 |
120,57 |
7 |
7,29 |
97,35 |
103,18 |
111,52 |
9 |
99,63 |
8 |
7,30 |
97,48 |
103,17 |
111,42 |
10 |
111,45 |
11 |
7,32 |
97,63 |
103,24 |
111,39 |
11 |
131,63 |
8 |
7,33 |
97,80 |
103,38 |
111,40 |
12 |
151,08 |
12 |
7,34 |
98,18 |
103,77 |
111,51 |
13 |
146,31 |
13 |
7,35 |
98,49 |
104,33 |
111,59 |
14 |
151,63 |
8 |
7,35 |
99,21 |
104,90 |
111,61 |
15 |
150,00 |
8 |
7,37 |
99,78 |
105,50 |
111,62 |
16 |
99,50 |
12 |
7,37 |
99,87 |
105,83 |
111,58 |
17 |
67,70 |
10 |
7,36 |
99,85 |
105,85 |
111,53 |
18 |
82,07 |
15 |
7,35 |
100,07 |
105,68 |
111,54 |
19 |
92,30 |
10 |
7,31 |
99,41 |
105,74 |
111,60 |
20 |
62,75 |
12 |
7,30 |
99,13 |
105,61 |
111,55 |
21 |
63,83 |
11 |
7,26 |
98,59 |
105,07 |
111,44 |
22 |
67,58 |
12 |
7,21 |
98,23 |
104,59 |
111,39 |
23 |
98,38 |
13 |
7,20 |
98,21 |
104,25 |
111,32 |
24 |
107,53 |
17 |
7,20 |
98,15 |
104,23 |
111,23 |
25 |
103,89 |
18 |
7,20 |
98,07 |
104,17 |
111,12 |
26 |
115,38 |
13 |
7,20 |
98,16 |
104,38 |
111,10 |
27 |
111,15 |
13 |
7,20 |
98,40 |
104,74 |
111,07 |
28 |
113,44 |
9 |
7,21 |
98,71 |
105,00 |
111,07 |
29 |
131,10 |
10 |
7,20 |
98,49 |
104,99 |
111,11 |
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Totals/ |
3,96 |
27,3 |
0,97 |
4,83 |
104,16 |
111,45 |
Avrgs |
CV and
CV observers |
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CV-13
rot. per Feb 2024 |
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:Product:
Weekly Highlights and Forecasts |
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Highlights of
Solar and Geomagnetic Activity |
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04 - 10 March
2024 |
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Solar activity
was at low to moderate levels. Region 3599 (S13, |
Click on link below |
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L=067,
class/area Dai/220 on 09 Mar) produced two M-class flares. |
to read the full weekly |
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The first was
an impulsive M1.3/Sf at 08/2126 UTC. The second was an |
http://services.swpc.noaa.gov/text/weekly.txt |
M7.4 flare at
10/1213 UTC with an associated 340 sfu Tenflare, a |
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Type II radio
sweep (714 km/s), a weak Castelli U radio signature, |
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and a CME
directed off the NW limb at 10/1248 UTC. Initial modelling |
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of the CME
indicated no Earth-directed component, however further |
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analysis is
on-going. A faint partial halo was observed beginning at |
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10/1812 UTC in
coronagraph imagery, likely related to a C6.9/1f |
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flare at
10/1538 UTC from Region 3599. Initial analysis showed a |
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glancing blow
around midday on 13 Mar. |
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No proton
events were observed at geosynchronous orbit. A slight |
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enhancement to
near 0.4 pfu was observed following the M7.4 flare at |
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10/1213
UTC. |
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Solar activity
is expected to be at very low to low levels with a |
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chance for
M-class (R1-R2/Minor-Moderate) flares on 11-14 Mar due |
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primarily to
the flare potential of Region 3599. Quiet to unsettled |
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levels are
expected on 15-26 Mar. On 27 Mar-06 Apr, a chance for |
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M-class flares
is once again likely as Region 3599 returns to the |
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visible
disk. |
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Progress Solar
Cycle no. 25 |
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Graphic show CV-Int. levels
cycle 25 compared to same stage cycles 21-24 per end Feb 2024.
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Highlights
February 2024 |
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The solar
activity in February 2024 is going slowly and though nice flare activity, no
large groups |
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except for
region 3586 which was the largest one since 2014. Other onnly modest sizes. |
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The 6 rot.
average was 105,9 CV-units by end February, |
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but the 13 rot.
average was 110,2 CV-units by last month end. |
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Report-end this
MPR 511 for February show we may still approach cycle 23, though 20,1%
behind. |
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A total of 756
regions this cycle per end March 2024 (375 regions North and 381 regions
South). |
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At the same
time solar cycle 24 produced 657 regions .(276 north and 381 south) |
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It now seems
that prediction mix of 6 and 13 rotation averages may indicate maximum
14.08.2025 (+/- 2 rot.) |
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as a time of
maximum for the CV-I (though it may happen a bit earlier). Updates will come. |
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We reckon
there have passed 1572 days of the new cycle by this issue on 15 Mar 2024. |
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There is a
continued production of smaller regions but soon expect more active periods! |
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The appearance
of region 3576 and heavy flare activity show some very active periods to
come! |
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Solar Flux
onset occurred 30 September 2022. |
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Please
remember you are always welcome to contribute with drawings and photos! |
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Need for new members!
Do you know any amateur solar astronomer that know or like to learn
classifications? |
Then please
pass the information about CV-Helios Network's work and contact
cvhelios@gmail.com |
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Supergroups-catalogue: |
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CV-Helios
Network is currently working on a catalogue with drawings or photos |
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of the,
currently 859, sunspot regions that exceeded 1000 mvh |
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in the period
of RGO-USAF tables, that is, from 1874 to the current year. |
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Drawings or
photos will be collected from the archives of wellknown different
observatories! |
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Hopefully this
catalogue will be published 2024 or 2025!
Stay tuned! |
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Pictures from
last month - Observer contributions, etc. |
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Highlights February 2024 |
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Photo courtesy: Thanks to CV-222 Milena Niemczyk, Poland |
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Click on image
to see a larger view. |
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Photo above
from left February 25, 2024. |
All members are free to participate in sending
in photos! |
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Awards this
month |
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0 |
none |
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New members: |
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Welcome to: |
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We are
now 52 active members (last 12 mo.) |
Sunspot
regions of February 2024 |
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Region,First
date,days,Lat.,Long.,Rot.,Max class,Max CV |
Region,First
date,days,Lat.,Long.,Rot.,Max class,Max CV |
3567,30.01.24,7,18,129,2280,DAI,22 |
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3583,10.02.24,9,9,7,2280,FKO,45 |
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3570,01.02.24,5,-4,118,2280,DRO,13 |
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3584,10.02.24,10,-15,337,2281,CAO,8 |
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3571,01.02.24,12,-17,104,2280,CSO,11 |
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3585,13.02.24,3,14,308,2281,HAX,7 |
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3572,01.02.24,6,-12,147,2280,HSX,10 |
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3586,14.02.24,12,27,282,2281,HSX,10 |
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3573,01.02.24,6,22,159,2280,CSO,11 |
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3587,15.02.24,4,-21,305,2281,CRO,5 |
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3574,01.02.24,10,16,95,2280,DAO,19 |
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3588,15.02.24,1,-3,312,2281,BXO,2 |
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3575,02.02.24,6,-37,177,2280,DKC,55 |
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3589,15.02.24,3,-7,34,2280,BXI,3 |
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3576,03.02.24,13,-16,57,2280,FKC,57 |
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3590,18.02.24,12,18,223,2281,FKC,57 |
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3577,05.02.24,5,24,93,2280,BXO,2 |
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3591,23.02.24,14,-36,160,2281,HSX,10 |
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3578,05.02.24,4,-4,47,2280,CRO,5 |
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3592,23.02.24,8,-13,165,2281,DSO,25 |
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3579,07.02.24,6,-11,40,2280,HAX,7 |
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3593,23.02.24,1,-7,305,2281,BXO,2 |
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3580,08.02.24,3,22,126,2280,HAX,7 |
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3594,23.02.24,8,5,169,2281,CAO,8 |
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3581,08.02.24,12,-21,6,2280,HSX,10 |
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3596,26.02.24,10,19,135,2281,CAO,8 |
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3582,10.02.24,8,6,34,2280,DAI,22 |
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3597,28.02.24,3,7,155,2281,BXO,2 |
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Discovering
activities in solar cycles from 1610 to 2023 |
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