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Solar Bulletin, March 2006
Solar Bulletin |
| THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS - SOLAR COMMITTEE |
Carl E. Feehrer, Editor
9 Gleason Rd.
Bedford, MA 01730 | Email: cfeehrer@hotmail.com
ISSN 0271-8480 |
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| Volume 62 Number 3 | March 2006 |
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Table I. Mean Sunspot Numbers for March 2006
[boldface = maximum, minimum] |
Table II. March Observers
|
| Day |
N |
Raw
Mean |
Ra |
| 1 |
28 |
2 |
1 |
| 2 |
31 |
1 |
1 |
| 3 |
33 |
1 |
1 |
| 4 |
31 |
5 |
3 |
| 5 |
33 |
12 |
9 |
| 6 |
26 |
5 |
4 |
| 7 |
28 |
2 |
1 |
| 8 |
27 |
2 |
2 |
| 9 |
22 |
1 |
0 |
| 10 |
23 |
0 |
0 |
| 11 |
31 |
0 |
0 |
| 12 |
27 |
15 |
11 |
| 13 |
28 |
16 |
11 |
| 14 |
25 |
14 |
9 |
| 15 |
26 |
19 |
13 |
| 16 |
20 |
19 |
12 |
| 17 |
23 |
21 |
14 |
| 18 |
23 |
21 |
15 |
| 19 |
25 |
24 |
17 |
| 20 |
26 |
27 |
20 |
| 21 |
27 |
30 |
22 |
| 22 |
25 |
29 |
20 |
| 23 |
22 |
21 |
14 |
| 24 |
22 |
20 |
13 |
| 25 |
24 |
5 |
3 |
| 26 |
25 |
0 |
0 |
| 27 |
27 |
2 |
1 |
| 28 |
28 |
19 |
14 |
| 29 |
35 |
30 |
23 |
| 30 |
28 |
33 |
24 |
| 31 |
28 |
38 |
28 |
|
Means: | 26.7 | 14.0 | 9.9 |
No. of Observers: 57
No. of Observations: 827
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Reporting Addresses |
Sunspot Reports -- email: solar@aavso.org
- postal mail: AAVSO, 25 Birch St. Cambridge, MA 02138
- FAX (AAVSO): (617) 354-0665
| |
SID Solar Flare Reports -- email: noatak@aol.com
- postal mail: Mike Hill
114 Prospect St. Marlboro, MA 01752
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|
| 8 |
AAP |
P.Abbott |
|
| 12 |
AJV |
J.Alonso |
|
| 12 |
ANGR |
R.Ang |
|
| 21 |
ARAG |
G.Araujo |
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| 12 |
BARH |
H.Barnes |
|
| 5 |
BATR |
R.Battaiola |
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| 3 |
BEB |
R.Berg |
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| 15 |
BERJ |
J.Berdejo |
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| 9 |
BLAJ |
J.Blackwell |
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| 17 |
BMF |
M.Boschat |
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| 30 |
BRAB |
B.Branchett |
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| 28 |
BRAD |
D.Branchett |
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| 22 |
BRAR |
R.Branch |
|
| 17 |
BROB |
R.Brown |
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| 15 |
BYG |
Y.Brovarets |
|
| 2 |
CAMP |
P.Campbell |
|
| 26 |
CHAG |
G.Morales |
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| 21 |
CKB |
B.Cudnik |
|
| 6 |
CLZ |
L.Corp |
|
| 12 |
COMT |
T.Compton |
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| 20 |
DEJV |
J.van Delft |
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| 16 |
DGP |
G.Dyck |
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| 21 |
FERJ |
J.Fernandez |
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| 22 |
FLET |
T.Fleming |
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| 4 |
GOEM |
M.Goetz |
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| 6 |
HAYK |
K.Hay |
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| 13 |
JAMD |
D.James |
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| 4 |
JENS |
S.Jenner |
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| 12 |
KAPJ |
J.Kaplan |
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| 18 |
KNJS |
J.Knight |
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| 2 |
KROL |
L.Krozel |
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| 7 |
LARJ |
J.Larriba |
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| 27 |
MCE |
E.Mochizuki |
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| 3 |
MENM |
M.Menegotto |
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| 8 |
MMI |
M.Moeller |
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| 16 |
OATS |
S.Oatney |
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| 17 |
OBSO |
IPS Observatory |
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| 11 |
RICE |
E.Richardson |
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| 22 |
RITA |
A.Ritchie |
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| 18 |
SCHG |
G.Scholl |
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| 2 |
SDP |
D.Sharples |
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| 7 |
SIMC |
C.Simpson |
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| 12 |
STEF |
G.Stefanopoulos |
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| 15 |
STEM |
G.Stemmler |
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| 16 |
STQ |
N.Stoikidis |
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| 18 |
SUZM |
M.Suzuki |
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| 26 |
SZAK |
K.Szatkowski |
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| 27 |
SZUM |
M.Szulc |
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| 25 |
TESD |
D.Teske |
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| 15 |
TJV |
J.Temprano |
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| 24 |
URBP |
P.Urbanski |
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| 21 |
VARG |
A.Vargas |
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| 3 |
VIDD |
D.Vidican |
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| 9 |
WILD |
D.Williams |
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| 24 |
WILW |
W.Wilson |
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| 5 |
WRP |
R.Wheeler |
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| 18 |
YESH |
H.Yesilyaprak |
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Click image to enlarge.
Fig. 1. 10 cm Solar Flux and American Relative Sunspot Numbers (Ra) for March 2006
(10cm Source: http://www.drao.nrc.ca/icarus) |
 |
Click image to enlarge.
Fig.2 Smoothed Mean Sunspot Numbers (Rsm) from January 2000 to September 2005 (Waldmeier method). |
Michael Hill, SID Analyst
114 Prospect St
Marlborough, MA 01752 USA
noatak@aol.com |
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Sudden Ionospheric Disturbances (SID) Recorded During March 2006
| (Analysis performed by Michael Hill, SID Analyst) |
| Date |
Max |
Imp |
| 060314 |
1222 |
2 |
| 060321 |
0947 |
1+ |
| 060321 |
1634 |
1 |
| Importance rating: Duration | -1: <19 | 1: 19-25 | 1+: 26-32 | 2: 33-45 | 2+: 46-85 | 3: 86-125 | 3+: >125 |
| Observer |
Code |
Station(s) monitored |
| A
Clerkin |
A29 |
NAA |
| J
Winkler |
A50 |
NAA
NML NPM |
| P
King |
A80 |
FTA |
| M
Hill |
A87 |
NAA |
| J
Mandaville |
A90 |
NPM |
| G
Di Filippo |
A93 |
HWU |
| J
Wallace |
A97 |
NAA |
| F
Steyn |
A102 |
NWC |
| P
Mortfield |
A108 |
NAA |
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| The events listed above meet at least one of the following criteria |
- Event reported by two or more observers within +/- 5 minutes
- Event matched to GOES-8 XRA event to within +/- 15 minutes and event time < 1000 UT
- Reported by observer with a high quality rating > 8 (scale 1-10)
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Solar Events
March was another slow month for SID events. Only three this time around. Most of the activity was in the latter half of the month as can be seen by the GOES-12 data plot. There were only 60
X-Ray events recorded and of those all but six were B-Class. The rest were only C-Class events, all occuring on the 21st, the busiest day of the month.
Thanks to all of you for reporting in even if your report was one of no SID events recorded..
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Solar Flare Summary Based on GOES-12 Data
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