Post by Renae/k9do on Apr 24, 2020 23:49:22 GMT
The last day with a visible sunspot was April 4.
Over the past reporting week, April 16 to 22, average daily solar flux was 69, down a half point from the previous week, when the average
was 69.5.
Average daily planetary A index was 7.3 while mid-latitude A index was 7. This was up from 6.1 and 5, mainly due to the first
geomagnetic storm of 2020, which pushed planetary A index to 18 on April 19. That event bumped up the average.
Solar flux numbers have been soft of late, with averages over recent weeks of 71.1, 69.4, 70.2, 69.5 and now 69. Lower solar flux
probably means less radiation that might excite the ionosphere.
Predicted solar flux is 71 on April 24 to 30 and 69 on May 1 through June 7. Actually, the April 23 forecast shows predicted solar flux
at 96 on May 12, but we've seen this error once in the past. The digits were transposed.
The predicted planetary A index is forecast at 5 on April 24 to 29, 8 on April 30, 5 on May 1 to 4, 12 on May 5, 5 on May 6 to 16, then 12, 10,
8 and 10 on May 17 to 20, 5 on May 21 to 23, then 10, 5, 5 and 8 on May 24 to 27, 5 on May 28 to 31, 12 on June 1, and 5 on June 2 to 7.
Sunspot numbers for April 16 through 22, 2020 were 0, 0, 0, 0, 0, 0, and 0, with a mean of 0. 10.7 cm flux was 68.5, 67.9, 69.8, 68.6,
68.2, 69.1, and 70.7, with a mean of 69. Estimated planetary A indices were 5, 4, 4, 3, 18, 9, and 8, with a mean of 7.3. Middle
latitude A index was 5, 4, 4, 2, 16, 8, and 10, with a mean of 7.
Over the past reporting week, April 16 to 22, average daily solar flux was 69, down a half point from the previous week, when the average
was 69.5.
Average daily planetary A index was 7.3 while mid-latitude A index was 7. This was up from 6.1 and 5, mainly due to the first
geomagnetic storm of 2020, which pushed planetary A index to 18 on April 19. That event bumped up the average.
Solar flux numbers have been soft of late, with averages over recent weeks of 71.1, 69.4, 70.2, 69.5 and now 69. Lower solar flux
probably means less radiation that might excite the ionosphere.
Predicted solar flux is 71 on April 24 to 30 and 69 on May 1 through June 7. Actually, the April 23 forecast shows predicted solar flux
at 96 on May 12, but we've seen this error once in the past. The digits were transposed.
The predicted planetary A index is forecast at 5 on April 24 to 29, 8 on April 30, 5 on May 1 to 4, 12 on May 5, 5 on May 6 to 16, then 12, 10,
8 and 10 on May 17 to 20, 5 on May 21 to 23, then 10, 5, 5 and 8 on May 24 to 27, 5 on May 28 to 31, 12 on June 1, and 5 on June 2 to 7.
Sunspot numbers for April 16 through 22, 2020 were 0, 0, 0, 0, 0, 0, and 0, with a mean of 0. 10.7 cm flux was 68.5, 67.9, 69.8, 68.6,
68.2, 69.1, and 70.7, with a mean of 69. Estimated planetary A indices were 5, 4, 4, 3, 18, 9, and 8, with a mean of 7.3. Middle
latitude A index was 5, 4, 4, 2, 16, 8, and 10, with a mean of 7.