Monthly Sunspot Observation Report
February 2011 Sunspot classification and coordinates →
59.06
Monthly mean R
18 / 28
Observation days (64%)
140
Maximum R
10
Days without observation
D: Day · T: Time (UT) · g: Number of groups · f: Number of spots · R: Relative number (10g+f) · Q: Seeing 1–5 · O: Observer · G: Assigned observer
| Drawing | D | T (UT) | g | f | R | Q | O | G |
|---|---|---|---|---|---|---|---|---|
| Drawing | 01 | 10:10 | 1 | 14 | 24 | 3 | A.GÜLTEKİN+H.Ç. | AG0 |
| Drawing | 02 | 07:35 | 2 | 19 | 39 | 4 | Hikmet ÇAKMAK | HÇ |
| Drawing | 03 | 08:50 | 3 | 11 | 41 | 2 | Başar COŞKUNOĞLU | BC |
| Drawing | 05 | 07:26 | 2 | 8 | 28 | 3 | Asuman GÜLTEKİN | AG0 |
| Drawing | 06 | 07:10 | 2 | 5 | 25 | 3 | Korhan YELKENCİ | KY |
| Drawing | 07 | 06:45 | 1 | 5 | 15 | 3 | Korhan YELKENCİ | KY |
| Drawing | 08 | 07:40 | 5 | 14 | 64 | 3 | Asuman GÜLTEKİN | AG0 |
| Drawing | 09 | 07:25 | 3 | 16 | 46 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 10 | 07:10 | 1 | 11 | 21 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 11 | 09:05 | 4 | 11 | 51 | 3 | Sinan ALİŞ | SA |
| Drawing | 13 | 09:30 | 4 | 48 | 88 | 3 | Sinan ALİŞ | SA |
| Drawing | 14 | 09:55 | 6 | 65 | 125 | 3 | Hikmet ÇAKMAK | KY |
| Drawing | 16 | 12:10 | 3 | 39 | 69 | 2 | Hikmet ÇAKMAK | HÇ |
| Drawing | 17 | 08:25 | 2 | 31 | 51 | 2 | Asuman GÜLTEKİN | BC |
| Drawing | 18 | 08:15 | 6 | 80 | 140 | 4 | S.ALİŞ+H.Ç. | SA |
| Drawing | 19 | 12:25 | 4 | 69 | 109 | 4 | Hikmet ÇAKMAK | HÇ |
| Drawing | 21 | 09:10 | 4 | 35 | 75 | 3 | K.YELKENCİ+H.Ç. | KY |
| Drawing | 22 | 07:15 | 3 | 22 | 52 | 3 | Hikmet ÇAKMAK | HÇ |
| Monthly Mean of Relative Number: 59.06 [18 observations; 64%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Hikmet Çakmak HÇ | 6 | 09:27 | 09:22 [5] |
| Asuman Gültekin Annak AG0 | 4 | 08:25 | 08:25 [3] |
| Korhan Yelkenci KY | 3 | 07:42 | 07:42 [3] |
| Sinan Aliş SA | 3 | 08:57 | 08:57 [3] |
| Başar Coşkunoğlu BC | 2 | 08:00 | 08:00 [2] |
| Month total | 18 – 10 | Observing window: 07:00 – 09:00 UT | |
Colour: black = within the window, green = up to 30 min late, purple = later.
The last twelve months Development of the daily and monthly mean relative number
Observation days (2011): 39 / 59 (66%)
Days without observation: 20
Consecutive days: 0 (longest 7)