CV-Helios Network

Monthly Preliminary Report

MPR

 

Kjell Inge Malde, Director/Editor

Web: http://www.cv-helios.net

 

 

Böreholen 20, N-4085 Hundvaag NORWAY

Email: cvhelios@gmail.com

 

 

 

 

 

 

 

 

Volume 40 Number 4

MPR no. 465

April 2020

 

ISSN 2535-3780

 

 

 

 

 

 

 

 

 

 

CV-Helios Network

 

 

 

 

 

 

 

 

 

 

Monthly Preliminary Report for April 2020

 

 

 

 

 

Solar Cycle 24: Month no. 138

Solar Cycle 25: Month no. 5 ?

 

 

Report id.: cv2004 -

CV-report no.: 465

 

 

 

Memno.

Name

Country

CV

 

Obs

K

Obs. Tot.

 

CV-001

MALDE, KJELL INGE

NORWAY

1,0

 

25

0,909

8462

 

 

 

 

 

 

 

 

 

 

CV-009

BRAUCKHOFF, DIETER

GERMANY

3,6

 

29

3,104

1266

 

 

 

 

 

 

 

 

 

 

CV-010

DUBOIS, FRANKY

BELGIUM

1,0

 

30

0,845

8671

 

 

 

 

 

 

 

 

 

 

CV-019

JUNKER, ELMAR

GERMANY

1,1

 

24

0,947

3436

 

 

 

 

 

 

 

 

 

 

CV-020

HOLL, MANFRED

GERMANY

2,0

 

1

1,748

5366

 

 

 

 

 

 

 

 

 

 

CV-021

BARNES, HOWARD

NEW ZEALAND

1,4

 

14

1,248

4343

 

 

 

 

 

 

 

 

 

 

CV-022

VIERTEL, ANDREAS

GERMANY

0,3

 

28

0,250

5620

 

 

 

 

 

 

 

 

 

 

CV-023

BRETSCHNEIDER, HART

GERMANY

0,8

 

29

0,693

5047

 

 

 

 

 

 

 

 

 

 

CV-038

MORALES, GERMAN

BOLIVIA

3,7

 

28

3,215

7127

 

 

 

 

 

 

 

 

 

 

CV-041

ROTHERMEL, JENS

GERMANY

1,0

 

26

0,908

1116

 

 

 

 

 

 

 

 

 

 

CV-044

SCHRÖDER, GERD

GERMANY

0,3

 

29

0,271

4363

 

 

 

 

 

 

 

 

 

 

CV-068

THIMM, SVEN OVE

DENMARK

0,1

 

15

0,058

3627

 

 

 

 

 

 

 

 

 

 

CV-077

JOHNSTON, ANDREW

UNITED KINGDOM

0,8

 

27

0,712

3008

 

 

 

 

 

 

 

 

 

 

CV-080

JANSSENS, JAN

BELGIUM

1,1

 

13

0,941

1044

 

 

 

 

 

 

 

 

 

 

CV-082

URBANSKI, PIOTR

POLAND

0,8

 

29

0,723

4730

 

 

 

 

 

 

 

 

 

 

CV-086

TOS-POLAND

POLAND

1,1

 

30

0,961

7448

 

 

 

 

 

 

 

 

 

 

CV-091

DALEK, GRZEGORZ

POLAND

0,9

 

27

0,809

4107

 

 

 

 

 

 

 

 

 

 

CV-103

STEEN, OCTAAF

BELGIUM

0,9

 

30

0,787

5293

 

 

 

 

 

 

 

 

 

 

CV-105

RYBACK, ALEXEY

RUSSIA

1,2

 

9

1,068

2941

 

 

 

 

 

 

 

 

 

 

CV-107

LEVENTHAL, MONTY

AUSTRALIA

0,1

 

17

0,103

4256

 

 

 

 

 

 

 

 

 

 

CV-116

BJERKGÅRD, TERJE

NORWAY

0,3

 

6

0,291

897

 

 

 

 

 

 

 

 

 

 

CV-122

FEIK, VLASTISLAV

CZECH REPUBLIC

1,4

 

29

1,266

2518

 

 

 

 

 

 

 

 

 

 

CV-135

ARAUJO, GEMA

SPAIN

1,3

 

30

1,165

6280

 

 

 

 

 

 

 

 

 

 

CV-136

GARCIA, FAUSTINO

SPAIN

0,8

 

5

0,699

3276

 

 

 

 

 

 

 

 

 

 

CV-139

ALONSO, JAVIER

SPAIN

1,8

 

19

1,564

3413

Page 1 of 8

CV-Helios Network

Volume 40 Number 4

MPR no. 465

April 2020

 

ISSN 2535-3780

 

 

 

 

 

 

 

 

Memno.

Name

Country

CV

 

Obs

K

Obs. Tot.

CV-151

CARELS, JEFFREY

BELGIUM

0,7

 

27

0,647

2623

CV-171

MALUF, WALTER JOSE

BRAZIL

1,2

 

29

1,025

2131

 

 

 

 

 

 

 

 

CV-177

BACKER, HENDRIK DE

BELGIUM

1,0

 

30

0,903

1585

 

 

 

 

 

 

 

 

CV-181

DERDZIKOWSKI, ADAM

POLAND

1,5

 

14

1,311

905

 

 

 

 

 

 

 

 

CV-202

ZAMORA, JORDI

SPAIN

1,0

 

26

0,874

823

 

 

 

 

 

 

 

 

CV-203

DEMEULENAERE, IVO

BELGIUM

0,6

 

25

0,559

490

 

 

 

 

 

 

 

 

CV-204

MEISTER, STEFAN

SWITZERLAND

1,9

 

13

1,681

290

 

 

 

 

 

 

 

 

CV-206

FIGIEL, TADEUSZ

POLAND

0,6

 

8

0,546

156

 

 

 

 

 

 

 

 

CV-207

ONDREJOV OBS. (AI CA

CZECH REPUBLIC

1,4

 

22

1,192

5070

 

 

 

 

 

 

 

 

CV-208

NEYS, JOHAN

BELGIUM

1,0

 

26

0,840

301

 

 

 

 

 

 

 

 

CV-209

MORAES, CAIO CRESPO

BRAZIL

0,8

 

5

0,699

526

 

 

 

 

 

 

 

 

CV-210

BOURGEOIS, JEAN

BELGIUM

0,9

 

30

0,757

495

 

 

 

 

 

 

 

 

CV-211

CEUNINCK, EDWIN DE

BELGIUM

0,8

 

28

0,687

395

 

 

 

 

 

 

 

 

CV-212

ZAPATA MORALES, ANT

SPAIN

0,5

 

17

0,463

255

 

 

 

 

 

 

 

 

CV-213

LAURENT, DIRK

BELGIUM

0,9

 

28

0,780

228

 

 

 

 

 

 

 

 

CV-214

GRAGEDA, IGOR

BOLIVIA

1,5

 

14

1,311

197

 

 

 

 

 

 

 

 

CV-215

MENGUS, ARNAUD

FRANCE

0,8

 

19

0,736

19

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Totals

Observers

Days

CV

No

K

 

42

30

1,10

 

910

0,959

 

 

 

 

Page 2 of 8

CV-Helios Network

 

Volume 40 Number 4

MPR no. 465

April 2020

ISSN 2535-3780

 

 

 

 

 

 

 

 

 

 

Results

*CV-USAF prepared via data from

 

 

 

 

Joint USDC/NOAA, SWPC/USAF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Date

 

CV

Obsrvrs

Regions

* CV-USAF

CV-6 rot.

CV-13 rot.

 

6 rot.

6 rot.

 

 

 

 

 

 

1

 

3,70

33

0,14

0,52

0,71

2,48

 

 

 

 

 

 

 

 

2

 

4,89

27

0,15

0,55

0,76

2,38

 

 

 

 

 

 

 

 

3

 

3,93

29

0,15

0,57

0,79

2,23

 

 

 

 

 

 

 

 

4

 

2,40

30

0,16

0,58

0,81

2,09

 

 

 

 

 

 

 

 

5

 

0,00

34

0,16

0,58

0,81

1,96

 

 

 

 

 

 

 

 

6

 

0,00

30

0,16

0,58

0,81

1,79

 

 

 

 

 

 

 

 

7

 

0,00

32

0,16

0,58

0,80

1,65

 

 

 

 

 

 

 

 

8

 

0,00

28

0,16

0,58

0,80

1,63

 

 

 

 

 

 

 

 

9

 

0,00

32

0,16

0,58

0,80

1,63

 

 

 

 

 

 

 

 

10

 

0,00

35

0,16

0,58

0,80

1,62

 

 

 

 

 

 

 

 

11

 

0,00

34

0,16

0,58

0,80

1,61

 

 

 

 

 

 

 

 

12

 

0,00

35

0,16

0,58

0,79

1,61

 

 

 

 

 

 

 

 

13

 

0,00

29

0,15

0,57

0,78

1,61

 

 

 

 

 

 

 

 

14

 

0,00

26

0,15

0,56

0,78

1,61

 

 

 

 

 

 

 

 

15

 

0,00

27

0,15

0,56

0,78

1,61

 

 

 

 

 

 

 

 

16

 

0,00

31

0,15

0,56

0,77

1,61

 

 

 

 

 

 

 

 

17

 

0,00

29

0,15

0,56

0,77

1,61

 

 

 

 

 

 

 

 

18

 

0,00

29

0,15

0,56

0,77

1,60

 

 

 

 

 

 

 

 

19

 

0,00

28

0,15

0,56

0,76

1,60

 

 

 

 

 

 

 

 

20

 

0,00

29

0,15

0,56

0,76

1,60

 

 

 

 

 

 

 

 

21

 

0,00

35

0,15

0,56

0,76

1,59

 

 

 

 

 

 

 

 

22

 

0,00

30

0,15

0,56

0,75

1,53

 

 

 

 

 

 

 

 

23

 

0,00

32

0,15

0,56

0,75

1,47

 

 

 

 

 

 

 

 

24

 

0,00

31

0,15

0,56

0,75

1,37

 

 

 

 

 

 

 

 

25

 

0,78

32

0,15

0,57

0,75

1,26

 

 

 

 

 

 

 

 

26

 

2,75

32

0,16

0,58

0,77

1,13

 

 

 

 

 

 

 

 

27

 

5,23

35

0,16

0,59

0,82

1,05

 

 

 

 

 

 

 

 

28

 

1,33

27

0,16

0,59

0,83

0,94

 

 

 

 

 

 

 

 

29

 

5,26

19

0,18

0,63

0,86

0,87

 

 

 

 

 

 

 

 

30

 

4,70

30

0,18

0,64

0,90

0,78

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Totals/

 

1,17

30,3

0,40

0,71

0,79

1,58

Avrgs

 

 

 

 

 

 

 

 

Page 3 of 8

CV-Helios Network

Volume 40 Number 4

MPR no. 465

April 2020

ISSN 2535-3780

CV and CV observers

40

35

30

25

20

15

10

5

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

 

 

 

 

 

 

 

 

 

 

 

 

 

CV for April 2020 Observers in April 2020

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CV-13 rot. per April 2020

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

Page 4 of 8

CV-Helios Network

Volume 40 Number 4

MPR no. 465

April 2020

ISSN 2535-3780

Solar Region Summary for April 2020

Reg.-First day-Last day-Lat.-Lon.-Rot.-Area-Lgth.-CVtot.-class14d

2759-31.03.20-04.04.20-N28-261-2229-10-2-2,8-AXX-HRX-HRX-HRX-AXX 2760-24.04.20-26.04.20-S07-305-2229-10-1-3,7-AXX-CRO-CRO 2762-29.04.20-30.04.20-N24-336-2230-10-2-1,5-BXO-AXX 2763-30.04.20-30.04.20-N32-260-2230-10-2-2,0-BXO

---------

---------

---------

---------

---------

---------

:Product: Weekly Highlights and Forecasts

:Issued: 2020 May 11 0302 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 04 - 10 May 2020

Solar activity was very low. Regions 2760 (S06, L=306, class/area

Cro/020 on 29 Apr) and 2763 (N32, L=260, class/area Bxo/010 on 30

Apr) were both plage regions as they rotated off the west limb on 05

May and 08 May, respectively. No Earth-directed CMEs were observed.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels. The peak flux was 240 pfu observed at 09/0420 UTC.

Geomagnetic field activity was mostly quiet with isolated unsettled periods observed on 06 and 10 May. Solar wind parameters were at nominal levels with solar wind speed ranging from 285-360 km/s.

Total field ranged from 1-8 nT while the Bz component was between +6/-7 nT.

Page 5 of 8

CV-Helios Network

 

Volume 40 Number 4

MPR no. 465

April 2020

ISSN 2535-3780

 

 

 

 

 

CV-I vs R-I graph

 

Solar minimum has occurred?

Min. period 01 Oct 2019 - 30 Nov 2019, 13-rot. centered averages Solar Flux adj.

69,4

69,3

69,2

69,1

69

68,9

68,8

01.10.2019

03.10.2019

05.10.2019

07.10.2019

09.10.2019

11.10.2019

13.10.2019

15.10.2019

17.10.2019

19.10.2019

21.10.2019

23.10.2019

25.10.2019

27.10.2019

29.10.2019

31.10.2019

02.11.2019

04.11.2019

06.11.2019

08.11.2019

10.11.2019

12.11.2019

14.11.2019

16.11.2019

18.11.2019

20.11.2019

22.11.2019

24.11.2019

26.11.2019

28.11.2019

30.11.2019

Solar minimum: Has it occurred last year?

The above graphic show the 13-rot. average+13 rot. centered averages for 10,7 cm solar flux 2800 MHz.

It may seem minimum occured late November 2019.

CV-I may indicate approx. same datevalues for a minimum. Updates will come.

Awards this month

1

CV-077 JOHNSTON, ANDREW: 3000 CV-obs. on 21.04.2020

 

Congratulations!

 

 

New member:

Welcome to:

CV-215 ARNAUD MENGUS - France

Enrolled 22.04.2020

 

We are now 48 active members (last 12 mo.)

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

MINIMUM Cycle 24/25 was expected to occur between November 2019/May 2020.

Latest: MINIMUM MAY HAVE OCCURRED END OCT. 2019.

Page 6 of 8

CV-Helios Network

Volume 40 Number 4

MPR no. 465

April 2020

ISSN 2535-3780

April 2020 news

Click on picture to open the site.

or go to:

http://www.cv- helios.net/helios/c v/web/sungrid/sun grid.html

and check out.

The page also gives you a link to the year table.

A new feature at CV-Helios Network has been tried out and published on web as a help for those of you in need for heliographic data, the nearest 28-day table over Po, Bo and Lo with Carrington Rotation number, Sundiameter in arc minutes and also the RA and Dec.

This, together with the updated SOHO-image with the correct grid as an overlay, is published every day before 9 am UTC and is sometimes updated during daytime.

Solar Coordinates

Daily list of Solar Ephemeris for 2020 available at:

Daily list of Solar Ephemeris for 2020

Here you can see Today's Po, Bo, Lo, Rotation no., RA and Dec. for the year 2020.

Calculating CV

For your convenience and security, use the mif2002,

https://www.cv-helios.net/mif2002.xls

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:

 

https://www.cv-helios.net/cgi/data/datlist.txt

for checking of Entries Summary

 

 

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

Page 7 of 8

CV-Helios Network

Volume 40 Number 4

MPR no. 465

April 2020

ISSN 2535-3780

SUBMISSIONS OF CV-OBSERVATIONS

Please go to: https://www.cv-helios.net/observations/index.html

Log on to:

https://www.cv-helios.net/observations/index.html

loginsolaris

passwordcvheliosobs

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

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

Per April 2020: Registration time average last 40 entries: 10 hours 1 minutes

CV-Helios Network

- over 38 years in solar amateur astronomy service!

There are now 11516 entries registered containing 183782 CV-observations!

This MPR issued 15th May 2020

CV-Helios Network

Director/Coordinator: Kjell Inge Malde

Phone: +47 98 69 28 56

cvhelios@gmail.com

https://www.cv-helios.net

---------------------------------------------------------------------------

Worldwide Amateur Solar Observing Network

Magnetic Sunspot Classifications Zürich/McIntosh system CV - Classification Values (Malde/1981) - numeric system Serving Amateur Solar Astronomy since 1981

---------------------------------------------------------------------------

Editorial close: 15.05.2020 19:02 UTC

Page 8 of 8