Monthly Sunspot Observation Report
April 2015 Sunspot classification and coordinates →
97.20
Monthly mean R
25 / 30
Observation days (83%)
218
Maximum R
5
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 | 06:20 | 4 | 10 | 50 | 3 | Asuman GÜLTEKİN | AG0 |
| Drawing | 02 | 11:00 | 3 | 16 | 46 | 3 | Talar YONTAN | TY0 |
| Drawing | 03 | 07:24 | 1 | 5 | 15 | 3 | Sinan ALİŞ | SA |
| Drawing | 04 | 07:20 | 5 | 22 | 72 | 3 | K.YELKENCİ=S.A. | SA |
| Drawing | 05 | 08:00 | 7 | 29 | 99 | 3 | H.ÇAKMAK=S.A. | KY |
| Drawing | 06 | 06:35 | 6 | 38 | 98 | 3 | Korhan YELKENCİ | KY |
| Drawing | 08 | 07:20 | 2 | 34 | 54 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 10 | 07:30 | 4 | 30 | 70 | 3 | H.ÇAKMAK=T.Y. | TY0 |
| Drawing | 11 | 08:00 | 7 | 26 | 96 | 3 | Hikmet ÇAKMAK | HÇ |
| Drawing | 12 | 07:19 | 6 | 36 | 96 | 3 | T.YONTAN=A.G. | AG0 |
| Drawing | 13 | 07:30 | 8 | 58 | 138 | 3 | Korhan YELKENCİ | KY |
| Drawing | 14 | 06:20 | 9 | 41 | 131 | 3 | Asuman GÜLTEKİN | AG0 |
| Drawing | 15 | 07:00 | 7 | 67 | 137 | 3 | Talar YONTAN | HÇ |
| Drawing | 16 | 07:20 | 7 | 62 | 132 | 3 | T.YONTAN=Ö.Ö. | ÖÖ |
| Drawing | 17 | 07:55 | 9 | 108 | 198 | 3 | K.YELKENCİ-S.A. | SA |
| Drawing | 18 | 11:55 | 11 | 108 | 218 | 5 | H.ÇAKMAK=Ö.Ö. | ÖÖ |
| Drawing | 20 | 08:15 | 8 | 62 | 142 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 21 | 10:37 | 10 | 64 | 164 | 3 | Özgecan ÖNALTAŞ | TY0 |
| Drawing | 23 | 08:25 | 11 | 46 | 156 | 3 | Asuman GÜLTEKİN | AG0 |
| Drawing | 24 | 09:29 | 5 | 36 | 86 | 3 | Sinan ALİŞ | SA |
| Drawing | 26 | 10:48 | 4 | 23 | 63 | 3 | Sinan ALİŞ | SA |
| Drawing | 27 | 06:05 | 6 | 26 | 86 | 3 | Korhan YELKENCİ | KY |
| Drawing | 28 | 08:50 | 4 | 12 | 52 | 3 | T.YONTAN=Ö.Ö. | ÖÖ |
| Drawing | 29 | 07:55 | 1 | 3 | 13 | 3 | Başar COŞKUNOĞLU | BC |
| Drawing | 30 | 08:50 | 1 | 8 | 18 | 3 | Ö.ÖNALTAŞ=T.Y. | TY0 |
| Monthly Mean of Relative Number: 97.20 [25 observations; 83%] | ||||||||
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Talar Yontan TY0 | 5 | 08:18 | 11:00 [1] |
| Korhan Yelkenci KY | 5 | 07:05 | 06:43 [3] |
| Hikmet Çakmak HÇ | 5 | 08:33 | 07:40 [2] |
| Asuman Gültekin Annak AG0 | 3 | 07:02 | 07:02 [3] |
| Sinan Aliş SA | 3 | 09:14 | 09:14 [3] |
| Başar Coşkunoğlu BC | 2 | 08:05 | 08:05 [2] |
| Ozgecan Önal Taş ÖÖ | 2 | 09:44 | --:-- |
| Month total | 25 – 5 | Observing window: 06:00 – 08:00 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 (2015): 78 / 120 (65%)
Days without observation: 42
Consecutive days: 5 (longest 9)