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 43 Number 2 MPR no. 499 February 2023 ISSN 2535-3780

CV-Helios Network

Monthly Preliminary Report for February 2023

Solar Cycle 25: Month no. 39

Report id.: cv2302 - CV-report no.: 499

Memno.

Name

Country

Obs

Obs. Tot.

CV-001

KJELL INGE MALDE

NORWAY

133,3

1,123

9124

CV-010

FRANKY DUBOIS

BELGIUM

89,7

0,755

9507

CV-019

ELMAR JUNKER

GERMANY

210,6

1,775

3780

CV-023

HARTMUT BRETSCHNEID

GERMANY

77,5

0,653

5746

CV-040

ROBERTO BATTAIOLA

ITALY

169,3

1,427

2085

CV-068

SVEN OVE THIMM

DENMARK

71,0

0,598

4151

CV-077

ANDREW JOHNSTON

UNITED KINGDOM

103,6

0,873

3575

CV-080

JAN JANSSENS

BELGIUM

87,0

0,733

1197

CV-082

PIOTR URBANSKI

POLAND

126,6

1,067

5364

CV-086

TOS POLAND

POLAND

126,4

1,065

8482

CV-091

GRZEGORZ DALEK

POLAND

108,7

0,916

4695

CV-102

PAULO ROBERTO MOSER

BRAZIL

97,6

0,822

2884

CV-105

ALEXEY RYBACK

RUSSIA

109,2

0,920

3377

CV-122

VLASTISLAV FEIK

CZECH REPUBLIC

90,5

0,763

3105

CV-135

GEMA ARAUJO

SPAIN

132,2

1,114

7288

CV-136

FAUSTINO GARCIA

SPAIN

89,7

0,756

3857

CV-139

JAVIER ALONSO

SPAIN

140,3

1,182

4001

CV-151

JEFFREY CARELS

BELGIUM

121,1

1,020

3142

CV-171

WALTER JOSE MALUF

BRAZIL

240,0

2,022

2872

CV-181

ADAM DERDZIKOWSKI

POLAND

94,5

0,796

1090

CV-204

STEFAN MEISTER

SWITZERLAND

97,4

0,821

738

CV-206

TADEUSZ FIGIEL

POLAND

101,8

0,857

335

CV-207

ONDREJOV OBS. (AI CAS)

CZECH REPUBLIC

147,8

1,245

3685

CV-208

JOHAN NEYS

BELGIUM

127,8

1,077

682

CV-214

IGOR GRAGEDA MENDEZ

BOLIVIA

112,8

0,951

1114

CV-215

ARNAUD MENGUS

FRANCE

122,8

1,035

314

CV-219

KANDILLI OBSERVATORY

TURKEY

118,1

0,995

804

CV-220

MICHEL FRANGEUL

FRANCE

101,5

0,855

Totals

Observers

Days

119,60

337

1,008

Results

Date

Obsrvrs

Regions
6 rot.

CV-USAF 6-rot.
6 rot.

CV-6 rot.

CV-13 rot.

41,30

5,65

95,96

89,41

78,75

37,33

5,66

95,86

89,53

78,78

36,50

5,67

95,72

89,66

78,85

60,00

5,68

95,56

89,63

78,87

34,67

5,67

95,01

89,17

78,83

64,55

5,70

94,67

88,76

78,84

89,77

5,71

94,30

88,49

78,98

132,07

5,74

94,80

88,65

79,23

162,18

5,76

95,26

89,43

79,72

187,25

5,82

96,08

90,32

80,06

188,50

5,88

97,05

91,02

80,38

185,15

5,93

97,94

91,91

80,75

153,86

5,99

98,91

92,57

81,10

156,11

6,04

99,61

93,33

81,51

122,27

6,08

100,14

93,67

81,85

107,00

6,09

100,14

93,99

82,13

124,30

6,10

100,74

94,64

82,50

144,50

6,12

101,20

95,19

82,81

153,50

6,13

101,73

95,78

83,03

129,60

6,15

102,56

96,27

83,20

123,56

6,15

102,84

96,63

83,31

98,89

6,14

103,18

96,67

83,33

112,18

6,12

103,24

96,74

83,39

134,89

6,12

103,50

96,98

83,50

131,93

6,14

103,78

97,29

83,63

113,88

6,15

103,82

97,55

83,72

99,09

6,17

103,59

97,71

83,68

82,88

6,19

103,68

97,87

83,56

Totals/

3,96

27,3

0,97

4,83

93,17

81,37

Avrgs

CV and CV observers

CV-13 rot. per Feb 2023

Latest sunspot regions developments

Reg.-First-Last-Lat.-Long.-Rot.-Area-Lgth.-CV-
max.

3214,06.02.23,12.02.23,16.02.23,12,206,2267,390,DKI,46

3230,18.02.23,22.02.23,02.03.23,-23,9,2267,120,DSO,25

3216,06.02.23,08.02.23,19.02.23,24,167,2267,250,DKO,43

3234,20.02.23,28.02.23,04.03.23,25,342,2268,860,FKC,57

3217,08.02.23,12.02.23,21.02.23,-10,138,2267,400,DKI,46

3236,23.02.23,27.02.23,03.03.23,-27,355,2268,140,CSO,11

3220,09.02.23,11.02.23,23.02.23,-14,122,2267,150,HSX,10

3226,13.02.23,14.02.23,23.02.23,11,114,2267,480,DKI,46

3229,16.02.23,17.02.23,28.02.23,26,34,2267,400,DKO,43

:Product: Weekly Highlights and Forecasts

Highlights of Solar and Geomagnetic Activity

06 - 12 March 2023

http://services.swpc.noaa.gov/text/weekly.txt

Solar activity ranged from low to high levels. There were five

M-class (R1-R2 Minor-Moderate) flares over the reporting period. The

largest was an M5.8/2n (R2) flare from Region 3243 (N18, L=306,

class/area=Dao/110 on 05 Mar). Associated with the event was a Type

II radio sweep, a Tenflare and a CME signature in SOHO/LASCO

imagery. The ejecta was analyzed and determined to not contain an

Earth-directed component. Region 3242 (N10, L=218,

class/area=Esc/300 on 07 Mar) and Region 3245 (S23, L=196,

class/area=Dhi/440 on 08 Mar) also produced M-class (R1) events. The

remaining 11 other spotted regions were either quiet or only

produced C-class events.

Other activity included three filament eruptions. The first was a SW

quadrant eruption near S20W50, beginning around 10/1600 UTC. The

second was just south of the first, which began erupting around

11/1648 UTC. Both were analyzed and modeled. Although they were

mostly oriented to the SW of Earth, the potential for a glancing

Solar activity is expected to be at low levels with a slight chance

for M-class (R1-R2 Minor - Moderate) flares over the outlook period.

This is due to multiple regions that have either produced M-class

activity already or are sufficiently complex to produce M-class

activity currently being on the visible disk or expected to return

to the visible disk during the outlook period.

Monthly graph

The above graphic show CV-I compared to CV-USAF for solar cycle 25.
At present CV-I has a "K-Index" of 0,974 compared to CV-USAF for the present solar cycle.

Highlights February 2023

Solar activity has been several times at high levels in February 2023.

The CV-I 6 rot. Average reached over 100 for the first time from 21 Feb 2023.

A total of 446 regions this cycle per mid Feb. 2023 (213 regions North and 233 regions South).

At the same time solar cycle 24 produced 410 regions.

Region,First date,Max.date,Last date,Lat.,Long.,Rot.,Max.mvh,Max class,Max CV

3213,06.02.23,12.02.23,15.02.23,30,225,2267,480,FKI,48

3214,06.02.23,12.02.23,16.02.23,12,206,2267,390,DKI,46

3216,06.02.23,08.02.23,19.02.23,24,167,2267,250,DKO,43

3217,08.02.23,12.02.23,21.02.23,-10,138,2267,400,DKI,46

3220,09.02.23,11.02.23,23.02.23,-14,122,2267,150,HSX,10

3226,13.02.23,14.02.23,23.02.23,11,114,2267,480,DKI,46

3229,16.02.23,17.02.23,28.02.23,26,34,2267,400,DKO,43

3230,18.02.23,22.02.23,02.03.23,-23,9,2267,120,DSO,25

3234,20.02.23,28.02.23,04.03.23,25,342,2268,860,FKC,57

3236,23.02.23,27.02.23,03.03.23,-27,355,2268,140,CSO,11

Sun has continued producing lots of small regions through February.

Region producing is already at nearly 22 percent over solar cycle 24 at th

On the average region producing, solar cycle 25 is now 95 percent of solar cycle 23!

Solar cycle 23 had a max avaerage of 9,8 regions in August 2000.

We reckon there have passed 1181 days (solar flux 1218 days) of the new cycle by this issue.

The prospects

February now produces lots of big regions and solar flares too!

Solar Max.: Our latest and final prediction to occur late July 2025, earliest possible may be April 2025.

Solar Flux onset: OCCURED 30 September 2022, the Onset 13 rot. ctrd. Occurred 18 Mar 2023.

Stay tuned and observe the solar disk from now on!

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

TAKE A SURVEY:

Here is a Survey of hmiigr SOHO solar images 2022.

https://www.cv-helios.net/helios/cv/web/2022/Video2022.mov

Pictures from last month - Observer contributions, etc.

photo courtesy SDO/HMI NOAA gov

Highlights February 2023

Left: The top CV-I day of February 2023: SOHO image "hmiigr" 11 Feb 2023.

Right: Number of sunspot regions cy24/cy25 compared.

Awards this month

Award no.: 158 to CV-139 JAVIER ALONSO date 23 February 2023 milestone 4000 CV-obs.! CONGRATULATIONS!

New members:

Welcome to:

We are now 49 active members (last 12 mo.)

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

for checking of Entries Summary

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

Classification Help

solaris

password

cvheliosobs

Monthly Input Form as excel

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

(password: cvhelios)

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

Average received to registered time: 0 day 12 hours 49 minutes
and Average macrotime used for one registration is 12,15 seconds

CV-Helios Network
- over 41 years in solar amateur astronomy service!

There are now Entries reg.: 12844 entries registered
containing 207098 CV-observations!
Last 12 months 5964 CV-observations from 39 observers originating from 17 countries

Editorial close: 15.03.2023 18:15 UTC