venerdì 13 gennaio 2017

The K7RA Solar Update

No sunspots were visible on January 1-2 and none on January 4-11, although a spot is just rotating into view today. Our reporting week is January 5-11, so the average daily sunspot number for that period was zero. For a look at recent sunspot numbers, check ftp://ftp.swpc.noaa.gov/pub/indices/DSD.txt and note the many zeroes.

Average daily solar flux this week was 72.5, down from 73.1 the week before. Average planetary A index rose 5 points to 14.3, while average mid-latitude A index increased from 6.3 to 10.6.


Predicted solar flux is 80 and 82 on January 13-14, 85 on January 15-19, 76 on January 20-25, 74 on January 26-28, 73 on January 29 through February 1, 72 on February 2-7, 74 on February 8, and 76 on February 9-21.