CV-Helios Network

Monthly Preliminary Report

MPR

 

Kjell Inge Malde, Director/Editor

 

 

Web:

http://www.cv-helios.net

 

 

Hunsteinstien 42A, N-4083 Hundvaag NORWAY

 

Email:

cvhelios@gmail.com

 

 

 

 

 

 

 

 

 

 

Volume 41 Number 5

MPR no. 478

May 2021

ISSN 2535-3780

 

 

 

 

 

 

 

 

 

 

 

CV-Helios Network

 

 

 

 

 

Monthly Preliminary Report for May 2021

 

 

 

 

 

 

Solar Cycle 25: Month no. 18

 

 

 

 

 

Report id.: cv2105 - CV-report no.: 478

 

 

 

 

Memno.

Name

Country

 

CV

Obs

K

Obs. Tot.

 

CV-001

KJELL INGE MALDE

NORWAY

 

21,6

21

1,150

8713

 

CV-009

DIETER BRAUCKHOFF

GERMANY

 

29,3

27

1,560

1566

 

CV-010

FRANKY DUBOIS

BELGIUM

 

15,9

31

0,848

9010

 

CV-019

ELMAR JUNKER

GERMANY

 

21,8

13

1,164

3595

 

CV-020

MANFRED HOLL

GERMANY

 

8,8

24

0,469

5638

 

CV-021

HOWARD BARNES

NEW ZEALAND

 

13,6

14

0,727

4512

 

CV-023

HARTMUT BRETSCHNEI

GERMANY

 

14,2

25

0,757

5340

 

CV-038

GERMAN MORALES

BOLIVIA

 

20,8

28

1,110

7468

 

CV-040

ROBERTO BATTAIOLA

ITALY

 

17,7

3

0,942

1910

 

CV-044

GERD SCHROEDER

GERMANY

 

13,1

18

0,696

4584

 

CV-068

SVEN OVE THIMM

DENMARK

 

14,2

13

0,754

3822

 

CV-077

ANDREW JOHNSTON

UNITED KINGDOM

 

14,6

21

0,779

3231

 

CV-080

JAN JANSSENS

BELGIUM

 

21,0

4

1,119

1107

 

CV-082

PIOTR URBANSKI

POLAND

 

20,1

21

1,071

4979

 

CV-086

TOS POLAND

POLAND

 

16,9

31

0,903

7844

 

CV-091

GRZEGORZ DALEK

POLAND

 

20,8

23

1,110

4352

 

CV-102

PAULO ROBERTO MOSE

BRAZIL

 

22,0

19

1,173

2383

 

CV-105

ALEXEY RYBACK

RUSSIA

 

27,1

25

1,446

3128

 

CV-107

MONTY LEVENTHAL

AUSTRALIA

 

14,5

21

0,774

4508

 

CV-116

TERJE BJERKGAARD

NORWAY

 

27,6

18

1,469

966

 

CV-122

VLASTISLAV FEIK

CZECH REPUBLIC

 

19,1

21

1,020

2776

 

CV-135

GEMA ARAUJO

SPAIN

 

15,9

31

0,848

6666

 

CV-136

FAUSTINO GARCIA

SPAIN

 

15,6

23

0,832

3541

 

CV-139

JAVIER ALONSO

SPAIN

 

20,0

25

1,068

3629

 

CV-151

JEFFREY CARELS

BELGIUM

 

16,9

19

0,903

2873

 

CV-171

WALTER JOSE MALUF

BRAZIL

 

30,1

27

1,607

2470

 

CV-181

ADAM DERDZIKOWSKI

POLAND

 

15,5

6

0,826

956

 

CV-198

DENIS WALLIAN

FRANCE

 

16,6

15

0,885

391

 

CV-202

JORDI ZAMORA

SPAIN

 

12,8

17

0,680

967

 

CV-204

STEFAN MEISTER

SWITZERLAND

 

24,4

26

1,300

446

 

CV-205

TOM MANGELSDORF

UNITED STATES

 

19,0

3

1,013

40

 

CV-206

TADEUSZ FIGIEL

POLAND

 

15,6

13

0,832

261

 

CV-207

ONDREJOV OBS. (AI CAS

CZECH REPUBLIC

 

22,4

11

1,192

3313

 

CV-208

JOHAN NEYS

BELGIUM

 

11,0

15

0,586

480

 

CV-210

JEAN BOURGEOIS

BELGIUM

 

16,4

29

0,873

784

 

CV-214

IGOR GRAGEDA

BOLIVIA

 

17,5

30

0,931

563

 

CV-215

ARNAUD MENGUS

FRANCE

 

14,5

15

0,775

182

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Totals

Observers

Days

CV

No

K

37

31

18,35

726

0,978

Page 1 of 6

CV-Helios Network

Results

 

Date

CV

Obsrvrs

Regions

CV-USAF

CV-6 rot.

CV-13 rot.

 

6 rot.

6-rot.

 

 

 

 

 

 

 

1

1,50

18

1,60

12,73

16,08

9,10

 

2

0,00

20

1,60

12,66

16,00

9,11

 

3

0,15

27

1,60

12,60

15,88

9,11

 

4

0,00

19

1,59

12,51

15,73

9,12

 

5

0,00

23

1,58

12,38

15,57

9,13

 

6

0,00

17

1,57

12,10

15,19

9,15

 

7

14,04

25

1,55

11,80

14,75

9,20

 

8

16,89

27

1,54

11,52

14,42

9,27

 

9

22,21

28

1,53

11,29

14,18

9,36

 

10

29,93

27

1,52

11,04

13,93

9,46

 

11

29,59

22

1,51

10,71

13,65

9,56

 

12

22,65

20

1,48

10,44

13,45

9,62

 

13

21,47

17

1,47

10,27

13,20

9,67

 

14

15,04

24

1,48

10,02

13,01

9,72

 

15

11,10

21

1,47

9,74

12,88

9,76

 

16

9,46

26

1,46

9,45

12,73

9,80

 

17

10,91

23

1,45

9,18

12,57

9,85

 

18

20,96

24

1,44

8,98

12,51

9,92

 

19

17,63

27

1,44

9,02

12,55

10,00

 

20

16,00

27

1,43

9,02

12,58

10,06

 

21

14,15

20

1,43

9,02

12,60

10,11

 

22

16,18

22

1,43

9,03

12,63

10,17

 

23

18,39

23

1,44

9,05

12,68

10,24

 

24

16,15

26

1,45

9,07

12,71

10,27

 

25

24,45

20

1,45

9,13

12,80

10,31

 

26

58,17

23

1,45

9,32

13,16

10,44

 

27

58,61

23

1,45

9,87

13,56

10,53

 

28

49,59

27

1,45

10,38

13,88

10,64

 

29

18,89

27

1,46

10,41

13,95

10,66

 

30

14,22

27

1,46

10,44

13,99

10,68

 

31

14,96

26

1,48

10,50

14,09

10,69

 

Totals/

3,96

27,3

0,97

4,83

13,77

9,83

 

Avrgs

 

 

 

 

 

 

 

Page 2 of 6

CV-Helios Network

CV and CV observers

CV for May 2021

 

Observers in May 2021

 

 

70

60

50

40

30

20

10

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

CV-13 rot. per May 2021

12

11

10

9

8

7

6

5

4

3

2

1

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Sunspot Region Summary for May 2021

Reg.-First day-Last day-Lat.-Lon.-Rot.-CVavrg.-ZMcI day1 to day14

2818,22.04.21,01.05.21,-16,205,2243-HSX,HSX,HSX,HSX,HSX,HSX,HSX,HSX,HSX,AXX,,,, 2822,07.05.21,20.05.21,18,335,2243-CSO,CSI,DSI,DAO,DAO,DAO,DAO,CAO,CAO,CAO,HSX,HSX,HSX,HSX 2823,10.05.21,16.05.21,-22,327,2243-CAO,CSO,CSO,HRX,AXX,AXX,AXX,,,,,,, 2824,18.05.21,29.05.21,19,195,2244-CAO,HSX,HSX,HSX,CSI,CSI,CSI,CSO,CSO,DHO,DHO,CAO,, 2825,23.05.21,24.05.21,17,142,2244-AXX,AXX,,,,,,,,,,,, 2826,25.05.21,28.05.21,24,215,2244-CRI,DAI,DKO,DKO,,,,,,,,,, 2827,29.05.21,07.06.21,12,076,2244-BXO,CRO,CAI,CSI,CSI,CSO,DSO,HSX,HSX,HSX,,,, 2828,30.05.21,31.05.21,-32,069,2244-AXX,AXX,,,,,,,,,,,,

:Product: Weekly Highlights and Forecasts

:Issued: 2021 Jun 14 0205 UTC

#Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center

#Product description and SWPC contact on the Web

#https://www.swpc.noaa.gov/content/subscription-services

#

#Weekly Highlights and Forecasts

Highlights of Solar and Geomagnetic Activity 07 - 13 June 2021

Solar activity was at low levels due to multiple C-class flares from an unnumbered region beyond the east limb. The largest C-class flare was a C3.7 at 09/0907 UTC from Region 2831 (N24, L=79, class/area Hrx/10 on 07 June). No Earth-directed CMEs were observed in coronagraph imagery. However, on 11-13 June coronagraph imagery was not available due to site maintenance at NASA. Availability of LASCO coronagraph imagery expected to resume on 15 June.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels throughout the highlight period.

Geomagnetic field activity was at quiet to unsettled levels on

08-11, and 13 June. Unsettled to active levels were reached on 07 June due to influences from the arrival of a recurrent coronal hole

Page 3 of 6

CV-Helios Network

Monthly graph

200

180

160

140

120

100

80

60

40

20

0

0

102

204

306

408

510

612

714

816

918

1020

1122

1224

1326

1428

1530

1632

1734

1836

1938

2040

2142

2244

2346

2448

2550

2652

2754

2856

2958

3060

3162

3264

3366

3468

3570

3672

3774

3876

3978

4080

4182

4284

4386

4488

 

 

 

 

 

 

 

Cycle 21

 

 

 

 

 

 

 

Cycle 22

 

 

 

 

 

 

Cycle 23

 

 

 

 

 

Cycle 24

 

 

 

 

 

Cycle 25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note the black line showing we are actually above cycle 24 levels for same date post-MIN.!

News May 2021

Solar activity is still nearly at standstill in this phase of the new solar cycle 25.

In fact, CV-13 rot. averages are now on the same level as late Nov 2019!

There are three regions only worthwhile mentioning:

Reg.-Lat. Long. (Rot.): Date-ZMcI-cls.,CV-USAF,comment

2822-N18 335 (2243): 09.05.2021-DSI, CV-USAF=28, 10-13.05. was DAO Quite an interesting group but seemed stable.

2824-N19 195 (2244): 27.05.2021-DHO, CV-USAF=49, same 28.05. This was apparently looking a quiet group but a massive flare producer,

2826-N24 215 (2244): 26.05.2021-DAI, CV-USAF=22, 27.-28-05 DKO CV-USAF=43 This group evolved rapidly from nothing to a group looking like an invert "C"

and had the magnetic poles turned about 90 degrees.

None of the two potent groups seemed to return in June.

The solar flux show a slight downfall at the time of writing, but hope for better times soon.

It is also expected that activity will come to fairly high levels around the first onset of this solar cycle, and that might commence at the end of this year.

Error:

On previous MPRs this cycle the wrong Month number of Solar Cycle 25 was quoted: We were, in previous month at Month number 18, which has now been corrected.

MIF2021

We hope the MIF2021 that was introduced to you last month have brought some of you some joy to use.

Please note that if you already have a good system that works well for you, you are NOT obliged to use MIF2021!

We wish you all lots of sunny days, happy observing and good luck in trying out the new MIF2021!

Please remember you are always welcome to contribute with drawings and photos!

Page 4 of 6

 

CV-Helios Network

 

 

 

 

 

Pictures from last month - Observer contributions, etc.

 

 

SOLAR CYCLE 25

Largest Regions of May 2021

Regions 2824 and 2826 on 25-26-27 May 2021 courtesy SDO/HMI NOAA gov

 

 

To the left a picture

 

 

from CV-107 Monty Leventhal

 

 

taken i June 2021.

 

 

 

 

Awards this month

1

 

Congratulations to CV-010 FRANKY DUBOIS with Milestone 9000 CV-observations!

 

Milestone date 21 May 2021

9000

 

 

Congratulations!

 

 

 

 

New member:

Welcome to:

 

none

none

 

 

We are now 52 active members (last 12 mo.)

Page 5 of 6

for checking of Entries Summary

CV-Helios Network

Solar Coordinates

New from April 2020

 

 

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 SOHO-picture on grid.

Calculating CV

For your convenience and security, use the mif2021, https://www.cv-helios.net/mif2021.xlsx

the Monthly Input Form, which you can use for all of your next reportings!

Monitor MPR daily progress

CV-Helios Network: Monitor MPR progress as entries are made! Monitor your submissions as they are registered: https://cv-helios.net/helios/cv/web/mprpost.html

The data are available fresh from about 10:00 UTC until local midnight. Content comprises CV-Report for latest month, CV-Report for latest month individual results, Extracts from NOAA on forecasts/discussion, Extracts from NOAA warehouse on SRS and other activity,

Last 24 months CV-data, This month CV acc. to USAF

Registration data

Check if your CV-observations have been registered (please allow up to 24 hrs): https://www.cv-helios.net/helios/cv/web/datlist.htm https://www.cv-helios.net/helios/cv/web/cvobsmonth.htm

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:

cvhelios@gmail.com

Please check out www.cv-helios.net/cvrep2.html for updates of files!

SUBMISSIONS OF CV-OBSERVATIONS Log on to: https://www.cv-helios.net/observations/index.html

login

solaris

password

cvheliosobs

Submission before 15th of proceeding month 18:00 UTC.

MPR issue 15th of proceeding month 2000 UTC. Good luck CV-observing!

Average Registration time over last 40 entries: 14 hours 27 minutes

CV-Helios Network

- over 39 years in solar amateur astronomy service!

There are now 12030 entries registered containing 193598 CV-observations!

Editorial close: 15.06.2021 17:49 UTC

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Page 6 of 6