Monthly Sunspot Observation Report
March 2021 Sunspot classification and coordinates →
17.33
Monthly mean R
21 / 31
Observation days (68%)
37
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 | 07:25 | 1 | 1 | 11 | 3 | Ergün EGE | EE |
| Drawing | 02 | 08:50 | 1 | 3 | 13 | 3 | Burçin TANIK | BT |
| Drawing | 03 | 07:30 | 2 | 13 | 33 | 3 | Oğuzhan ÇAKIR | OÇ |
| Drawing | 04 | 08:50 | 2 | 17 | 37 | 3 | Talar YONTAN | TY0 |
| Drawing | 05 | 10:45 | 1 | 4 | 14 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 06 | 08:30 | 0 | 0 | 0 | 2 | Süleyman FİŞEK | KY |
| Drawing | 08 | 08:49 | 1 | 1 | 11 | 3 | Ergün EGE | EE |
| Drawing | 09 | 07:30 | 2 | 5 | 25 | 3 | Süleyman FİŞEK | KY |
| Drawing | 10 | 08:40 | 1 | 1 | 11 | 3 | Olcay PLEVNE | OP |
| Drawing | 12 | 08:40 | 1 | 3 | 13 | 3 | H.ÇAKMAK=O.Ç. | OÇ |
| Drawing | 13 | 08:40 | 1 | 2 | 12 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 15 | 07:40 | 3 | 6 | 36 | 3 | Oğuzhan ÇAKIR | HÇ |
| Drawing | 16 | 08:55 | 2 | 2 | 22 | 3 | Burçin TANIK | BT |
| Drawing | 18 | 12:00 | 1 | 3 | 13 | 3 | Talar YONTAN | TY0 |
| Drawing | 20 | 07:40 | 1 | 3 | 13 | 3 | Süleyman FİŞEK | SF |
| Drawing | 22 | 08:35 | 2 | 3 | 23 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 24 | 06:55 | 2 | 8 | 28 | 3 | Süleyman FİŞEK | SF |
| Drawing | 25 | 10:35 | 2 | 7 | 27 | 3 | Talar YONTAN | TY0 |
| Drawing | 27 | 07:45 | 1 | 1 | 11 | 3 | Ergün EGE | EE |
| Drawing | 29 | 11:05 | 1 | 1 | 11 | 3 | Ergün EGE | EE |
| Drawing | 31 | 07:00 | 0 | 0 | 0 | 3 | Süleyman FİŞEK | SF |
| Monthly Mean of Relative Number: 17.33 [21 observations; 68%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Süleyman Fişek SF | 5 | 07:31 | 07:12 [3] |
| Ergün Ege EE | 4 | 08:46 | 08:46 [4] |
| Talar Yontan TY0 | 3 | 10:28 | 10:28 [3] |
| Burçin Tanık BT | 2 | 08:53 | 08:53 [2] |
| Oğuzhan Çakır OÇ | 2 | 07:35 | 07:30 [1] |
| Başar Coşkunoğlu BC | 2 | 09:42 | 09:42 [2] |
| Hikmet Çakmak HÇ | 2 | 08:38 | 08:35 [1] |
| Olcay Plevne OP | 1 | 08:40 | 08:40 [1] |
| Month total | 21 – 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 (2021): 49 / 90 (54%)
Days without observation: 41
Consecutive days: 1 (longest 6)