Post by Renae/k9do on Aug 7, 2020 22:10:55 GMT
Sunspot cycle 25 is well underway. We saw one new spot last week, on
July 28, and two new ones this week on August 2 and 3. The daily
sunspot numbers were 22 and 23 on the dates of their appearance, and
the total sunspot area grew on Wednesday to 160 millionths of the
visible solar disc.
The total sunspot area was smaller the next day, August 6, but the daily sunspot number increased from 13 to 14.
Sunspot area has not been as large since May 2019, when it ranged from 140 to 410 millionths of the solar disc over a two week period.
Average daily sunspot number for July 30 to August 5 was 19.6, up from 14.1 over the previous seven days. Average daily solar flux
rose from 71.1 to 72.8 over the same period.
The A index remained about the same, with planetary A index barely increasing from 6.7 to 7 and mid-latitude A index declining slightly
from 8.7 to 7.4.
Predicted solar flux is 73 on August 7 to 9, 71 on August 10 to 14, 69 on August 15 to 17, 71 on August 18 to 25, 73 on August 26 to 30,
71 on August 31 to September 7, 69 on September 8 to 13, and 71 on September 14 to 20.
The planetary A index forecast is 5 on August 7, 8 on August 8, 5 on August 9 to 23, 8 on August 24 and 25, 5 on August 26 to 28, then
12, 8 and 8 on August 29 to 31, 5 on September 1 to 19 and 8 on September 20.
Sunspot numbers for July 30 through August 5, 2020 were 22, 23, 22, 22, 23, 12, and 13, with a mean of 19.6. 10.7 cm flux was 73.3,
72.3, 72, 72.7, 72.7, 73, and 73.4, with a mean of 72.8. Estimated planetary A indices were 4, 4, 3, 9, 16, 8, and 5, with a mean of 7.
Middle latitude A index was 5, 5, 3, 9, 15, 9, and 6, with a mean of 7.4.
July 28, and two new ones this week on August 2 and 3. The daily
sunspot numbers were 22 and 23 on the dates of their appearance, and
the total sunspot area grew on Wednesday to 160 millionths of the
visible solar disc.
The total sunspot area was smaller the next day, August 6, but the daily sunspot number increased from 13 to 14.
Sunspot area has not been as large since May 2019, when it ranged from 140 to 410 millionths of the solar disc over a two week period.
Average daily sunspot number for July 30 to August 5 was 19.6, up from 14.1 over the previous seven days. Average daily solar flux
rose from 71.1 to 72.8 over the same period.
The A index remained about the same, with planetary A index barely increasing from 6.7 to 7 and mid-latitude A index declining slightly
from 8.7 to 7.4.
Predicted solar flux is 73 on August 7 to 9, 71 on August 10 to 14, 69 on August 15 to 17, 71 on August 18 to 25, 73 on August 26 to 30,
71 on August 31 to September 7, 69 on September 8 to 13, and 71 on September 14 to 20.
The planetary A index forecast is 5 on August 7, 8 on August 8, 5 on August 9 to 23, 8 on August 24 and 25, 5 on August 26 to 28, then
12, 8 and 8 on August 29 to 31, 5 on September 1 to 19 and 8 on September 20.
Sunspot numbers for July 30 through August 5, 2020 were 22, 23, 22, 22, 23, 12, and 13, with a mean of 19.6. 10.7 cm flux was 73.3,
72.3, 72, 72.7, 72.7, 73, and 73.4, with a mean of 72.8. Estimated planetary A indices were 4, 4, 3, 9, 16, 8, and 5, with a mean of 7.
Middle latitude A index was 5, 5, 3, 9, 15, 9, and 6, with a mean of 7.4.