There were a few sunspots again this month, and the Ra number doubled, but still very low. Gema Araujo of Spain obtained these wonderful recent solar images. The left H-alpha image taken of AR1010 on Jan 10, 2009 at 10:58UT, and the right prominence image taken the next day on Jan 11, 2009 at 11:25UT
Thanks again to all the dedicated observers who continue to patrol the sun and submit reports. Your data still counts and reflects the current status of this cycle. Don't forget to submit your images, drawings and SID plots to include in the bulletin.
Still looking for web software volunteers
We're looking to update our sunspot data submission process, and provide more real-time feedback to all our solar observers via the AAVSO website. We'd also like to help improve our visibility to the astronomy community for IYA 2009. If you have the experience and expertise and have some time to help the solar group, please contact me via email above.
Sudden Ionospheric Disturbance Report
Michael Hill, SID Analyst
114 Prospect St
Marlborough, MA 01752 USA
noatak@aol.com
|  |
Sudden Ionospheric Disturbances (SID)
Recorded During January 2009
(Analysis performed by Michael Hill, SID Analyst)
| Date |
Max |
Imp |
| No SIDs Recorded. |
| 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 |
|
| P King |
A80 | |
| M Hill |
A87 | |
| L Anderson |
A91 | |
| R Battaiola |
A96 | |
| J Wallace |
A97 | |
| M King |
A99 | |
| L. Obs |
A107 | |
| P Mortfield |
A108 | |
| L Loudet |
A118 | |
| F Adamson |
A122 | |
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)
January was a very slow month again. There were 0 correlated SID events and the GOES-12 satellite only detected 3 flares around the 10th of the month. I'd like to welcome new observer Frank Adamson. Frank lives in Australia and is monitoring NWC. His observer ID is A122. Welcome to the group Frank. As always thanks to all of you for your continued contributions. It is slow but with the lull in activity we are getting new observers. That's good to see. I hope you all have a good year ahead and hopefully by the end of the year the solar activity will have started to pick up on a regular basis.
Sunspot Data
American Relative Sunspot Numbers(Ra) for January 2009
[boldface = maximum, minimum]
| Day |
N |
Raw
Mean |
Ra |
| 1 |
24 |
0 |
0 |
| 2 |
26 |
0 |
0 |
| 3 |
23 |
0 |
0 |
| 4 |
36 |
0 |
0 |
| 5 |
23 |
0 |
0 |
| 6 |
26 |
0 |
0 |
| 7 |
21 |
2 |
1 |
| 8 |
29 |
0 |
0 |
| 9 |
25 |
9 |
6 |
| 10 |
31 |
16 |
11 |
| 11 |
37 |
15 |
11 |
| 12 |
26 |
8 |
7 |
| 13 |
25 |
3 |
1 |
| 14 |
20 |
0 |
0 |
| 15 |
28 |
0 |
0 |
| 16 |
25 |
0 |
0 |
| 17 |
32 |
0 |
0 |
| 18 |
23 |
1 |
0 |
| 19 |
28 |
3 |
2 |
| 20 |
29 |
0 |
0 |
| 21 |
27 |
0 |
0 |
| 22 |
23 |
0 |
0 |
| 23 |
21 |
0 |
0 |
| 24 |
27 |
0 |
0 |
| 25 |
27 |
0 |
0 |
| 26 |
27 |
0 |
0 |
| 27 |
20 |
0 |
0 |
| 28 |
20 |
1 |
0 |
| 29 |
28 |
2 |
1 |
| 30 |
24 |
0 |
0 |
| 31 |
33 |
0 |
0 |
Means |
26.3 |
1.9 |
1.3 |
Total No. of Observers: 55
Total No. of Observations: 814
|
January 2009 Sunspot Observers
| AAP |
A. Abbott |
8 |
| AJV |
J. Alonso |
15 |
| ANGR |
R. Ang |
4 |
| ARAG |
G. Araujo |
27 |
| BARH |
H. Barnes |
15 |
| BERJ |
J. Berdejo |
11 |
| BMF |
M. Boschat |
16 |
| BRAB |
B. Branchett |
29 |
| BROB |
R. Brown |
26 |
| BVC |
A. Buck |
31 |
| CHAG |
G. Morales |
27 |
| CKB |
B. Cudnik |
28 |
| CLZ |
L. Corp |
10 |
| CNT |
D. Chantiles |
13 |
| CVJ |
J. Carvajal |
8 |
| DEKP |
P. Dekelver |
16 |
| DGP |
G. Dyck |
5 |
| DUBF |
F. Dubois |
19 |
| FERJ |
J. Fernandez |
13 |
| FLET |
T. Fleming |
22 |
| FUJK |
K. Fujimori |
22 |
| HAYK |
K. Hay |
12 |
| HMQ |
M. Harris |
25 |
| HRUT |
T. Hrutkay |
7 |
| JASK |
K. Jaskulska |
5 |
| KAPJ |
J. Kaplan |
26 |
| KNJS |
J. & S. Knight |
26 |
| KROL |
L. Krozel |
1 |
| LARJ |
J. Larriba |
11 |
| MARE |
E. Mariani |
4 |
| MARF |
F. Mariuzza |
17 |
| MARJ |
J. Maranon |
1 |
| MCE |
E. Mochizuki |
20 |
| MEU |
E. Mason |
10 |
| MILJ |
J. Miller |
12 |
| MMI |
M. Moeller |
16 |
| OATS |
S. Oatney |
21 |
| OBSO |
IPS Observatory |
11 |
| RICE |
E. Richardson |
9 |
| RITA |
A. Ritchie |
7 |
| SCGL |
G. Schott |
21 |
| SIMC |
C. Simpson |
6 |
| STEM |
G. Stemmler |
16 |
| STQ |
N. Stoikidis |
12 |
| SUZM |
M. Suzuki |
26 |
| SZUM |
M. Szulc |
9 |
| TESD |
D. Teske |
20 |
| TJV |
J. Temprano |
8 |
| URBP |
P. Urbanski |
12 |
| VARG |
A. Vargas |
26 |
| VIDD |
D. Vidican |
10 |
| WILW |
W. Wilson |
14 |
| WIRP |
P. Wirkus |
1 |
| WRP |
R. Wheeler |
6 |
| YESH |
H. Yesilyaprak |
21 |
|
|
|
Reporting addresses:
Sunspot Reports
Email: solar@aavso.org
Postal Mail: AAVSO,
49 Bay State Rd. Cambridge, MA, 02138
Fax: 617-354-0665
SID Flare Reports
Email: noatak@aol.com
Postal Mail: Mike Hill,
114 Prospect St., Marlboro, MA, 01752
|
|
10 cm Solar Flux and American Relative Sunspot Numbers (Ra) for January 2009 |
 |
Smoothed Mean Sunspot Numbers (Rsm) from January 2000 to July 2008 (Waldmeier method).
(10cm Source: http://www.drao.nrc.ca/icarus) |
 |
